diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..b1536b4
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,54 @@
+0.3.107
+	- Make tests compile again on modern systems (warnings + -Werror)
+	- Add 'make partcheck' and don't require manual setup for testing.
+	- Change test harness to compile against this dir, not global install
+	- Fix 5.t for archs where PROT_WRITE mappings are readable.
+	- Allow sending of SIGXFSZ on aio over limits
+	- Explicitly specify bash for runtests.sh
+	- Put deprecating comments on never-merged io_prep_poll
+	- Add io_prep_preadv and io_prep_pwritev
+	- Add eventfd support (io_set_eventfd).
+
+0.4.0
+	- remove libredhat-kernel
+	- add rough outline for man pages
+	- make the compiled io_getevents() add the extra parameter and 
+	  pass the timeout for updating as per 2.5
+	- fixes for ia64, now works
+	- fixes for x86-64
+	- powerpc support from Gianni Tedesco <gianni@ecsc.co.uk>
+	- disable the NULL check in harness/cases/4.t on ia64: ia64 
+	  maps the 0 page and causes this check to fail.
+
+0.3.15
+	- use real syscall interface, but don't break source compatibility 
+	  yet (that will happen with 0.4.0)
+
+0.3.13
+	- add test cases
+
+0.3.11
+	- use library versioning of libredhat-kernel to always provide a 
+	  fallback
+
+0.3.9
+	- add io_queue_release function
+
+0.3.8
+	- make clean deletes libredhat-kernel.so.1
+	- const struct timespec *
+	- add make srpm target
+
+0.3.7
+	- fix assembly function .types
+	- export io_getevents
+	- fix io_submit function prototype to match the kernel
+	- provide /usr/lib/libredhat-kernel.so link for compilation
+	  (do NOT link against libredhat-kernel.so directly)
+	- fix soname to libaio.so.1
+	- fix dummy libredhat-kernel's soname
+	- work around nfs bug
+	- provide and install libredhat-kernel.so.1 stub
+	- Makefile improvements
+	- make sure dummy libredhat-kernel.so only returns -ENOSYS
+
diff --git a/INSTALL b/INSTALL
new file mode 100644
index 0000000..29b9077
--- /dev/null
+++ b/INSTALL
@@ -0,0 +1,18 @@
+To install the library, execute the command:
+
+	make prefix=`pwd`/usr install
+
+which will install the binaries and header files into the directory 
+usr.  Set prefix=/usr to get them installed into the main system.
+
+Please note:  Do not attempt to install on the system the
+"libredhat-kernel.so" file.  It is a dummy shared library
+provided only for the purpose of being able to bootstrap
+this facility while running on systems without the correct
+libredhat-kernel.so built.  The contents of the included
+libredhat-kernel.so are only stubs; this library is NOT
+functional for anything except the internal purpose of
+linking libaio.so against the provided stubs.  At runtime,
+libaio.so requires a real libredhat-kernel.so library; this
+is provided by the Red Hat kernel RPM packages with async
+I/O functionality.
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..c4792dd
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,515 @@
+
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diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..8d134cc
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,64 @@
+prefix=/usr
+includedir=$(prefix)/include
+libdir=$(prefix)/lib
+
+ARCH := $(shell uname -m | sed -e s/i.86/i386/)
+CFLAGS := -nostdlib -nostartfiles -Wall -I. -g -fomit-frame-pointer -O2 -fPIC
+SO_CFLAGS=-shared $(CFLAGS)
+L_CFLAGS=$(CFLAGS)
+LINK_FLAGS=
+
+soname=libaio.so.1
+minor=0
+micro=1
+libname=$(soname).$(minor).$(micro)
+all_targets += libaio.a $(libname)
+
+all: $(all_targets)
+
+# libaio provided functions
+libaio_srcs := io_queue_init.c io_queue_release.c
+libaio_srcs += io_queue_wait.c io_queue_run.c
+
+# real syscalls
+libaio_srcs += io_getevents.c io_submit.c io_cancel.c
+libaio_srcs += io_setup.c io_destroy.c
+
+# internal functions
+libaio_srcs += raw_syscall.c
+
+# old symbols
+libaio_srcs += compat-0_1.c
+
+libaio_objs := $(patsubst %.c,%.ol,$(libaio_srcs))
+libaio_sobjs := $(patsubst %.c,%.os,$(libaio_srcs))
+
+$(libaio_objs) $(libaio_sobjs): libaio.h vsys_def.h
+
+%.os: %.c
+	$(CC) $(SO_CFLAGS) -c -o $@ $<
+
+%.ol: %.c
+	$(CC) $(L_CFLAGS) -c -o $@ $<
+
+
+libaio.a: $(libaio_objs)
+	rm -f libaio.a
+	ar r libaio.a $^
+	ranlib libaio.a
+
+$(libname): $(libaio_sobjs) libaio.map
+	$(CC) $(SO_CFLAGS) -Wl,--version-script=libaio.map -Wl,-soname=$(soname) -o $@ $(libaio_sobjs) $(LINK_FLAGS)
+
+install: $(all_targets)
+	install -D -m 644 libaio.h $(includedir)/libaio.h
+	install -D -m 644 libaio.a $(libdir)/libaio.a
+	install -D -m 755 $(libname) $(libdir)/$(libname)
+	ln -sf $(libname) $(libdir)/$(soname)
+	ln -sf $(libname) $(libdir)/libaio.so
+
+$(libaio_objs): libaio.h
+
+clean:
+	rm -f $(all_targets) $(libaio_objs) $(libaio_sobjs) $(soname).new
+	rm -f *.so* *.a *.o
diff --git a/TODO b/TODO
new file mode 100644
index 0000000..0a9ac15
--- /dev/null
+++ b/TODO
@@ -0,0 +1,4 @@
+- Write man pages.
+- Make -static links against libaio work.
+- Fallback on userspace if the kernel calls return -ENOSYS.
+
diff --git a/compat-0_1.c b/compat-0_1.c
new file mode 100644
index 0000000..136396f
--- /dev/null
+++ b/compat-0_1.c
@@ -0,0 +1,62 @@
+/* libaio Linux async I/O interface
+
+   compat-0_1.c : compatibility symbols for libaio 0.1.x-0.3.x
+
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <stdlib.h>
+#include <asm/errno.h>
+
+#include "libaio.h"
+#include "vsys_def.h"
+
+#include "syscall.h"
+
+
+/* ABI change.  Provide partial compatibility on this one for now. */
+SYMVER(compat0_1_io_cancel, io_cancel, 0.1);
+int compat0_1_io_cancel(io_context_t ctx, struct iocb *iocb)
+{
+	struct io_event event;
+
+	/* FIXME: the old ABI would return the event on the completion queue */
+	return io_cancel(ctx, iocb, &event);
+}
+
+SYMVER(compat0_1_io_queue_wait, io_queue_wait, 0.1);
+int compat0_1_io_queue_wait(io_context_t ctx, struct timespec *when)
+{
+	struct timespec timeout;
+	if (when)
+		timeout = *when;
+	return io_getevents(ctx, 0, 0, NULL, when ? &timeout : NULL);
+}
+
+
+/* ABI change.  Provide backwards compatibility for this one. */
+SYMVER(compat0_1_io_getevents, io_getevents, 0.1);
+int compat0_1_io_getevents(io_context_t ctx_id, long nr,
+		       struct io_event *events,
+		       const struct timespec *const_timeout)
+{
+	struct timespec timeout;
+	if (const_timeout)
+		timeout = *const_timeout;
+	return io_getevents(ctx_id, 1, nr, events,
+			const_timeout ? &timeout : NULL);
+}
+
diff --git a/harness/Makefile b/harness/Makefile
new file mode 100644
index 0000000..0bb8e3d
--- /dev/null
+++ b/harness/Makefile
@@ -0,0 +1,56 @@
+# foo.
+TEST_SRCS:=$(shell find cases/ -name \*.t | sort -n -t/ -k2)
+EXTRAPROGS:=cases/8.p cases/10.p
+PARTPROGS:=$(filter-out $(EXTRAPROGS), $(patsubst %.t,%.p,$(TEST_SRCS)))
+PROGS:=$(PARTPROGS) $(EXTRAPROGS)
+HARNESS_SRCS:=main.c
+# io_queue.c
+
+CFLAGS=-Wall -Werror -I../src -g -O
+#-lpthread -lrt
+
+all: $(PROGS)
+
+$(PROGS): %.p: %.t $(HARNESS_SRCS)
+	$(CC) $(CFLAGS) -DTEST_NAME=\"$<\" -o $@ main.c ../src/libaio.a
+
+clean:
+	rm -f $(PROGS) *.o runtests.out rofile wofile rwfile
+
+.PHONY:
+
+testdir/rofile: testdir .PHONY
+	rm -f $@
+	echo "test" >$@
+	chmod 400 $@
+
+testdir/wofile: testdir .PHONY
+	rm -f $@
+	echo "test" >$@
+	chmod 200 $@
+
+testdir/rwfile: testdir .PHONY
+	rm -f $@
+	echo "test" >$@
+	chmod 600 $@
+
+testdir testdir.enospc testdir.ext2:
+	mkdir $@
+
+root: .PHONY
+	@if [ `id -u` -ne 0 ]; then echo Need root for check, try partcheck >&2; exit 1; fi
+
+partcheck: $(PARTPROGS) testdir/rofile testdir/rwfile testdir/wofile
+	./runtests.sh $(PARTPROGS)
+
+ext2.img:
+	dd if=/dev/zero bs=1M count=10 of=$@
+	mke2fs -F -b 4096 $@
+
+extracheck: $(EXTRAPROGS) root testdir.ext2 testdir.enospc ext2.img
+	mount -o loop -t ext2 ext2-enospc.img testdir.enospc
+	./runtests.sh cases/10.p; ret=$$?; umount testdir.enospc; exit $$ret
+	mount -o loop -t ext2 ext2.img testdir.ext2
+	./runtests.sh cases/8.p; ret=$$?; umount testdir.ext2; exit $$ret
+
+check: partcheck extracheck 
diff --git a/harness/README b/harness/README
new file mode 100644
index 0000000..5557370
--- /dev/null
+++ b/harness/README
@@ -0,0 +1,19 @@
+Notes on running this test suite:
+
+To run the test suite, run "make check".  All test cases should pass 
+and there should be 0 fails.
+
+Several of the test cases require a directory on the filesystem under 
+test for the creation of test files, as well as the generation of 
+error conditions.  The test cases assume the directories (or symlinks 
+to directories) are as follows:
+
+	testdir/
+		- used for general read/write test cases.  Must have at 
+		  least as much free space as the machine has RAM (up 
+		  to 768MB).
+	testdir.enospc/
+		- a filesystem that has space for writing 8KB out, but 
+		  fails with -ENOSPC beyond 8KB.
+	testdir.ext2/
+		- must be an ext2 filesystem.
diff --git a/harness/attic/0.t b/harness/attic/0.t
new file mode 100644
index 0000000..033e62c
--- /dev/null
+++ b/harness/attic/0.t
@@ -0,0 +1,9 @@
+/* 0.t
+	Test harness check: okay.
+*/
+int test_main(void)
+{
+	printf("test_main: okay\n");
+	return 0;
+}
+
diff --git a/harness/attic/1.t b/harness/attic/1.t
new file mode 100644
index 0000000..799ffd1
--- /dev/null
+++ b/harness/attic/1.t
@@ -0,0 +1,9 @@
+/* 1.t
+	Test harness check: fail.
+*/
+int test_main(void)
+{
+	printf("test_main: fail\n");
+	return 1;
+}
+
diff --git a/harness/cases/10.t b/harness/cases/10.t
new file mode 100644
index 0000000..9d3beb2
--- /dev/null
+++ b/harness/cases/10.t
@@ -0,0 +1,53 @@
+/* 10.t - uses testdir.enospc/rwfile
+- Check results on out-of-space and out-of-quota. (10.t)
+        - write that fills filesystem but does not go over should succeed
+        - write that fills filesystem and goes over should be partial
+        - write to full filesystem should return -ENOSPC
+        - read beyond end of file after ENOSPC should return 0
+*/
+#include "aio_setup.h"
+
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+int test_main(void)
+{
+/* Note: changing either of these requires updating the ext2-enospc.img
+ * filesystem image.  Also, if SIZE is less than PAGE_SIZE, problems 
+ * crop up due to ext2's preallocation.
+ */
+#define LIMIT	65536
+#define SIZE	65536
+	char *buf;
+	int rwfd;
+	int status = 0, res;
+
+	rwfd = open("testdir.enospc/rwfile", O_RDWR|O_CREAT|O_TRUNC, 0600);
+							assert(rwfd != -1);
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+	buf = malloc(SIZE);				assert(buf != NULL);
+	memset(buf, 0, SIZE);
+
+
+	status |= attempt_rw(rwfd, buf, SIZE,   LIMIT-SIZE, WRITE, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,   LIMIT-SIZE,  READ, SIZE);
+
+	status |= attempt_rw(rwfd, buf, SIZE,        LIMIT, WRITE, -ENOSPC);
+	status |= attempt_rw(rwfd, buf, SIZE,        LIMIT,  READ,       0);
+
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+
+	status |= attempt_rw(rwfd, buf, SIZE, 1+LIMIT-SIZE, WRITE, SIZE-1);
+	status |= attempt_rw(rwfd, buf, SIZE, 1+LIMIT-SIZE,  READ, SIZE-1);
+	status |= attempt_rw(rwfd, buf, SIZE,        LIMIT,  READ,      0);
+
+	status |= attempt_rw(rwfd, buf, SIZE,        LIMIT, WRITE, -ENOSPC);
+	status |= attempt_rw(rwfd, buf, SIZE,        LIMIT,  READ,       0);
+	status |= attempt_rw(rwfd, buf,    0,        LIMIT, WRITE,       0);
+
+	res = close(rwfd);				assert(res == 0);
+	res = unlink("testdir.enospc/rwfile");		assert(res == 0);
+	return status;
+}
+
diff --git a/harness/cases/11.t b/harness/cases/11.t
new file mode 100644
index 0000000..efcf6d4
--- /dev/null
+++ b/harness/cases/11.t
@@ -0,0 +1,39 @@
+/* 11.t - uses testdir/rwfile
+- repeated read / write of same page (to check accounting) (11.t)
+*/
+#include "aio_setup.h"
+
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+int test_main(void)
+{
+#define COUNT	1000000
+#define SIZE	256
+	char *buf;
+	int rwfd;
+	int status = 0;
+	int i;
+
+	rwfd = open("testdir/rwfile", O_RDWR|O_CREAT|O_TRUNC, 0600);
+							assert(rwfd != -1);
+	buf = malloc(SIZE);				assert(buf != NULL);
+	memset(buf, 0, SIZE);
+
+	for (i=0; i<COUNT; i++) {
+		status |= attempt_rw(rwfd, buf, SIZE, 0, WRITE_SILENT, SIZE);
+		if (status)
+			break;
+	}
+	printf("completed %d out of %d writes\n", i, COUNT);
+	for (i=0; i<COUNT; i++) {
+		status |= attempt_rw(rwfd, buf, SIZE, 0, READ_SILENT, SIZE);
+		if (status)
+			break;
+	}
+	printf("completed %d out of %d reads\n", i, COUNT);
+
+	return status;
+}
+
diff --git a/harness/cases/12.t b/harness/cases/12.t
new file mode 100644
index 0000000..e87d1dc
--- /dev/null
+++ b/harness/cases/12.t
@@ -0,0 +1,53 @@
+/* 12.t
+- ioctx access across fork() (12.t)
+ */
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include "aio_setup.h"
+
+void test_child(void)
+{
+	int res;
+	res = attempt_io_submit(io_ctx, 0, NULL, -EINVAL);
+	fflush(stdout);
+	_exit(res);
+}
+
+int test_main(void)
+{
+	int res, status;
+	pid_t pid;
+	sigset_t set;
+
+	if (attempt_io_submit(io_ctx, 0, NULL, 0))
+		return 1;
+
+	sigemptyset(&set);
+	sigaddset(&set, SIGCHLD);
+	sigprocmask(SIG_BLOCK, &set, NULL);
+
+	fflush(NULL);
+	pid = fork();				assert(pid != -1);
+
+	if (pid == 0)
+		test_child();
+
+	res = waitpid(pid, &status, 0);
+
+	if (WIFEXITED(status)) {
+		int failed = (WEXITSTATUS(status) != 0);
+		printf("child exited with status %d%s\n", WEXITSTATUS(status),
+			failed ? " -- FAILED" : "");
+		return failed;
+	}
+
+	/* anything else: failed */
+	if (WIFSIGNALED(status))
+		printf("child killed by signal %d -- FAILED.\n",
+			WTERMSIG(status));
+
+	return 1;
+}
diff --git a/harness/cases/13.t b/harness/cases/13.t
new file mode 100644
index 0000000..5f18005
--- /dev/null
+++ b/harness/cases/13.t
@@ -0,0 +1,66 @@
+/* 13.t - uses testdir/rwfile
+- Submit multiple writes larger than aio-max-size (deadlocks on older
+  aio code)
+*/
+#include "aio_setup.h"
+
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+int test_main(void)
+{
+#define SIZE	(1024 * 1024)
+#define IOS	8
+	struct iocb	iocbs[IOS];
+	struct iocb	*iocb_list[IOS];
+	char *bufs[IOS];
+	int rwfd;
+	int status = 0, res;
+	int i;
+
+	rwfd = open("testdir/rwfile", O_RDWR|O_CREAT|O_TRUNC, 0600);
+							assert(rwfd != -1);
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+
+	for (i=0; i<IOS; i++) {
+		bufs[i] = malloc(SIZE);
+		assert(bufs[i] != NULL);
+		memset(bufs[i], 0, SIZE);
+
+		io_prep_pwrite(&iocbs[i], rwfd, bufs[i], SIZE, i * SIZE);
+		iocb_list[i] = &iocbs[i];
+	}
+
+	status |= attempt_io_submit(io_ctx, IOS, iocb_list, IOS);
+
+	for (i=0; i<IOS; i++) {
+		struct timespec ts = { tv_sec: 30, tv_nsec: 0 };
+		struct io_event event;
+		struct iocb *iocb;
+
+		res = io_getevents(io_ctx, 0, 1, &event, &ts);
+		if (res != 1) {
+			status |= 1;
+			printf("io_getevents failed [%d] with res=%d [%s]\n",
+				i, res, (res < 0) ? strerror(-res) : "okay");
+			break;
+		}
+
+		if (event.res != SIZE)
+			status |= 1;
+
+		iocb = (void *)event.obj;
+		printf("event[%d]: write[%d] %s, returned: %ld [%s]\n",
+			i, (int)(iocb - &iocbs[0]),
+			(event.res != SIZE) ? "failed" : "okay",
+			(long)event.res,
+			(event.res < 0) ? strerror(-event.res) : "okay"
+			);
+	}
+
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+	res = close(rwfd);				assert(res == 0);
+	return status;
+}
+
diff --git a/harness/cases/14.t b/harness/cases/14.t
new file mode 100644
index 0000000..87773e3
--- /dev/null
+++ b/harness/cases/14.t
@@ -0,0 +1,93 @@
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include "aio_setup.h"
+#include <sys/mman.h>
+
+#define SIZE 768*1024*1024
+
+//just submit an I/O
+
+int test_child(void)
+{
+        char *buf;
+        int rwfd;
+        int res;
+        long size;
+        struct iocb iocb;
+        struct iocb *iocbs[] = { &iocb };
+        int loop = 10;
+        int i;
+
+	aio_setup(1024);
+
+        size = SIZE;
+
+        printf("size = %ld\n", size);
+
+        rwfd = open("testdir/rwfile", O_RDWR);          assert(rwfd != 
+-1);
+        res = ftruncate(rwfd, 0);                       assert(res == 0);
+        buf = malloc(size);                             assert(buf != 
+NULL);
+
+        for(i=0;i<loop;i++) {
+
+                switch(i%2) {
+                case 0:
+                        io_prep_pwrite(&iocb, rwfd, buf, size, 0);
+                        break;
+                case 1:
+                        io_prep_pread(&iocb, rwfd, buf, size, 0);
+                }
+
+                res = io_submit(io_ctx, 1, iocbs);
+                if (res != 1) {
+                        printf("child: submit: io_submit res=%d [%s]\n", res, 
+strerror(-res));
+                        _exit(1);
+                }
+        }
+
+        res = ftruncate(rwfd, 0);                       assert(res == 0);
+
+        _exit(0);
+}
+
+/* from 12.t */
+int test_main(void)
+{
+	int res, status;
+	pid_t pid;
+	sigset_t set;
+
+	if (attempt_io_submit(io_ctx, 0, NULL, 0))
+		return 1;
+
+	sigemptyset(&set);
+	sigaddset(&set, SIGCHLD);
+	sigprocmask(SIG_BLOCK, &set, NULL);
+	fflush(NULL);
+	pid = fork();				assert(pid != -1);
+
+	if (pid == 0)
+		test_child();
+
+	res = waitpid(pid, &status, 0);
+
+	if (WIFEXITED(status)) {
+		int failed = (WEXITSTATUS(status) != 0);
+		printf("child exited with status %d%s\n", WEXITSTATUS(status),
+			failed ? " -- FAILED" : "");
+		return failed;
+	}
+
+	/* anything else: failed */
+	if (WIFSIGNALED(status))
+		printf("child killed by signal %d -- FAILED.\n",
+			WTERMSIG(status));
+
+	return 1;
+}
diff --git a/harness/cases/15.t b/harness/cases/15.t
new file mode 100644
index 0000000..933d008
--- /dev/null
+++ b/harness/cases/15.t
@@ -0,0 +1,94 @@
+/* 15.t
+- pwritev and preadv tests.
+*/
+#include "aio_setup.h"
+#include <sys/mman.h>
+#include <sys/uio.h>
+#include <errno.h>
+
+int test_main(void)
+{
+#define SIZE	512
+#define NUM_IOV	10
+	char buf[SIZE*NUM_IOV];
+	struct iovec iov[NUM_IOV];
+	int rwfd;
+	int	status = 0, res, i;
+
+	rwfd = open("testdir/rwfile", O_RDWR);		assert(rwfd != -1);
+	res = ftruncate(rwfd, sizeof(buf));		assert(res == 0);
+
+	for (i = 0; i < NUM_IOV; i++) {
+		iov[i].iov_base = buf + i*SIZE;
+		iov[i].iov_len = SIZE;
+		memset(iov[i].iov_base, i, SIZE);
+	}
+	status |= attempt_rw(rwfd, iov, NUM_IOV,  0, WRITEV, SIZE*NUM_IOV);
+	res = pread(rwfd, buf, sizeof(buf), 0);	assert(res == sizeof(buf));
+	for (i = 0; i < NUM_IOV; i++) {
+		unsigned int j;
+		for (j = 0; j < SIZE; j++) {
+			if (buf[i*SIZE + j] != i) {
+				printf("Unexpected value after writev at %i\n",
+				       i*SIZE + j);
+				status |= 1;
+				break;
+			}
+		}
+	}
+	if (!status)
+		printf("Checking memory: [Success]\n");
+
+	memset(buf, 0, sizeof(buf));
+	status |= attempt_rw(rwfd, iov, NUM_IOV,  0,  READV, SIZE*NUM_IOV);
+	for (i = 0; i < NUM_IOV; i++) {
+		unsigned int j;
+		for (j = 0; j < SIZE; j++) {
+			if (buf[i*SIZE + j] != i) {
+				printf("Unexpected value after readv at %i\n",
+				       i*SIZE + j);
+				status |= 1;
+				break;
+			}
+		}
+	}
+
+	/* Check that offset works. */
+	status |= attempt_rw(rwfd, iov+1, NUM_IOV-1,  SIZE, WRITEV,
+			     SIZE*(NUM_IOV-1));
+	memset(buf, 0, sizeof(buf));
+	res = pread(rwfd, buf, sizeof(buf), 0);	assert(res == sizeof(buf));
+	for (i = 1; i < NUM_IOV; i++) {
+		unsigned int j;
+		for (j = 0; j < SIZE; j++) {
+			if (buf[i*SIZE + j] != i) {
+				printf("Unexpected value after offset writev at %i\n",
+				       i*SIZE + j);
+				status |= 1;
+				break;
+			}
+		}
+	}
+	if (!status)
+		printf("Checking memory: [Success]\n");
+
+	memset(buf, 0, sizeof(buf));
+	status |= attempt_rw(rwfd, iov+1, NUM_IOV-1,  SIZE, READV,
+			     SIZE*(NUM_IOV-1));
+	for (i = 1; i < NUM_IOV; i++) {
+		unsigned int j;
+		for (j = 0; j < SIZE; j++) {
+			if (buf[i*SIZE + j] != i) {
+				printf("Unexpected value after offset readv at %i\n",
+				       i*SIZE + j);
+				status |= 1;
+				break;
+			}
+		}
+	}
+	if (!status)
+		printf("Checking memory: [Success]\n");
+
+	return status;
+}
+
diff --git a/harness/cases/16.t b/harness/cases/16.t
new file mode 100644
index 0000000..c3157cc
--- /dev/null
+++ b/harness/cases/16.t
@@ -0,0 +1,94 @@
+/* 16.t
+- eventfd tests.
+*/
+#include <stdint.h>
+#include <err.h>
+#include <sys/syscall.h>   /* For SYS_xxx definitions */
+
+#ifndef SYS_eventfd
+#if defined(__i386__)
+#define SYS_eventfd 323
+#elif defined(__x86_64__)
+#define SYS_eventfd 284
+#elif defined(__ia64__)
+#define SYS_eventfd 1309
+#elif defined(__PPC__)
+#define SYS_eventfd 307
+#elif defined(__s390__)
+#define SYS_eventfd 318
+#elif defined(__alpha__)
+#define SYS_eventfd 478
+#else
+#error define SYS_eventfd for your arch!
+#endif
+#endif
+
+int test_main(void)
+{
+	/* 10 MB takes long enough that we would fail if eventfd
+	 * returned immediately. */
+#define SIZE	10000000
+	char *buf;
+	struct io_event io_event;
+	struct iocb iocb;
+	struct iocb *iocbs[] = { &iocb };
+	int rwfd, efd;
+	int res;
+	io_context_t	io_ctx;
+	uint64_t event;
+	struct timespec	notime = { .tv_sec = 0, .tv_nsec = 0 };
+
+	buf = malloc(SIZE);				assert(buf);
+	efd = syscall(SYS_eventfd, 0);
+	if (efd < 0) {
+		if (errno == ENOSYS) {
+			printf("No eventfd support.  [SKIPPING]\n");
+			exit(0);
+		}
+		err(1, "Failed to get eventfd");
+	}
+
+	rwfd = open("testdir/rwfile", O_RDWR);		assert(rwfd != -1);
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+	memset(buf, 0x42, SIZE);
+
+	/* Write test. */
+	res = io_queue_init(1024, &io_ctx);		assert(res == 0);
+	io_prep_pwrite(&iocb, rwfd, buf, SIZE, 0);
+	io_set_eventfd(&iocb, efd);
+	res = io_submit(io_ctx, 1, iocbs);		assert(res == 1);
+
+	alarm(30);
+	res = read(efd, &event, sizeof(event));		assert(res == sizeof(event));
+	assert(event == 1);
+
+	/* This should now be ready. */
+	res = io_getevents(io_ctx, 0, 1, &io_event, &notime);
+	if (res != 1)
+		err(1, "io_getevents did not return 1 event after eventfd");
+	assert(io_event.res == SIZE);
+	printf("eventfd write test [SUCCESS]\n");
+
+	/* Read test. */
+	memset(buf, 0, SIZE);
+	io_prep_pread(&iocb, rwfd, buf, SIZE, 0);
+	io_set_eventfd(&iocb, efd);
+	res = io_submit(io_ctx, 1, iocbs);		assert(res == 1);
+
+	alarm(30);
+	res = read(efd, &event, sizeof(event));		assert(res == sizeof(event));
+	assert(event == 1);
+
+	/* This should now be ready. */
+	res = io_getevents(io_ctx, 0, 1, &io_event, &notime);
+	if (res != 1)
+		err(1, "io_getevents did not return 1 event after eventfd");
+	assert(io_event.res == SIZE);
+
+	for (res = 0; res < SIZE; res++)
+		assert(buf[res] == 0x42);
+	printf("eventfd read test  [SUCCESS]\n");
+
+	return 0;
+}
+
diff --git a/harness/cases/2.t b/harness/cases/2.t
new file mode 100644
index 0000000..3a0212d
--- /dev/null
+++ b/harness/cases/2.t
@@ -0,0 +1,41 @@
+/* 2.t
+- io_setup (#2)
+        - with invalid context pointer
+        - with maxevents <= 0
+        - with an already initialized ctxp
+*/
+
+int attempt(int n, io_context_t *ctxp, int expect)
+{
+	int res;
+
+	printf("expect %3d: io_setup(%5d, %p) = ", expect, n, ctxp);
+	fflush(stdout);
+	res = io_setup(n, ctxp);
+	printf("%3d [%s]%s\n", res, strerror(-res), 
+		(res != expect) ? " -- FAILED" : "");
+	if (res != expect)
+		return 1;
+
+	return 0;
+}
+
+int test_main(void)
+{
+	io_context_t	ctx;
+	int	status = 0;
+
+	ctx = NULL;
+	status |= attempt(-1000, KERNEL_RW_POINTER, -EFAULT);
+	status |= attempt( 1000, KERNEL_RW_POINTER, -EFAULT);
+	status |= attempt(    0, KERNEL_RW_POINTER, -EFAULT);
+	status |= attempt(-1000, &ctx, -EINVAL);
+	status |= attempt(   -1, &ctx, -EINVAL);
+	status |= attempt(    0, &ctx, -EINVAL);
+	assert(ctx == NULL);
+	status |= attempt(    1, &ctx, 0);
+	status |= attempt(    1, &ctx, -EINVAL);
+
+	return status;
+}
+
diff --git a/harness/cases/3.t b/harness/cases/3.t
new file mode 100644
index 0000000..7773d80
--- /dev/null
+++ b/harness/cases/3.t
@@ -0,0 +1,25 @@
+/* 3.t
+- io_submit/io_getevents with invalid addresses (3.t)
+
+*/
+#include "aio_setup.h"
+
+int test_main(void)
+{
+	struct iocb a, b;
+	struct iocb *good_ios[] = { &a, &b };
+	struct iocb *bad1_ios[] = { NULL, &b };
+	struct iocb *bad2_ios[] = { KERNEL_RW_POINTER, &a };
+	int	status = 0;
+
+	status |= attempt_io_submit(BAD_CTX, 1,   good_ios, -EINVAL);
+	status |= attempt_io_submit( io_ctx, 0,   good_ios,       0);
+	status |= attempt_io_submit( io_ctx, 1,       NULL, -EFAULT);
+	status |= attempt_io_submit( io_ctx, 1, (void *)-1, -EFAULT);
+	status |= attempt_io_submit( io_ctx, 2,   bad1_ios, -EFAULT);
+	status |= attempt_io_submit( io_ctx, 2,   bad2_ios, -EFAULT);
+	status |= attempt_io_submit( io_ctx, -1,  good_ios, -EINVAL);
+
+	return status;
+}
+
diff --git a/harness/cases/4.t b/harness/cases/4.t
new file mode 100644
index 0000000..972b4f2
--- /dev/null
+++ b/harness/cases/4.t
@@ -0,0 +1,72 @@
+/* 4.t
+- read of descriptor without read permission (4.t)
+- write to descriptor without write permission (4.t)
+- check that O_APPEND writes actually append
+
+*/
+#include "aio_setup.h"
+
+#define SIZE	512
+#define READ	'r'
+#define WRITE	'w'
+int attempt(int fd, void *buf, int count, long long pos, int rw, int expect)
+{
+	struct iocb iocb;
+	int res;
+
+	switch(rw) {
+	case READ:	io_prep_pread (&iocb, fd, buf, count, pos); break;
+	case WRITE:	io_prep_pwrite(&iocb, fd, buf, count, pos); break;
+	}
+
+	printf("expect %3d: (%c), res = ", expect, rw);
+	fflush(stdout);
+	res = sync_submit(&iocb);
+	printf("%3d [%s]%s\n", res, (res <= 0) ? strerror(-res) : "Success",
+		(res != expect) ? " -- FAILED" : "");
+	if (res != expect)
+		return 1;
+
+	return 0;
+}
+
+int test_main(void)
+{
+	char buf[SIZE];
+	int rofd, wofd, rwfd;
+	int	status = 0, res;
+
+	memset(buf, 0, SIZE);
+
+	rofd = open("testdir/rofile", O_RDONLY);	assert(rofd != -1);
+	wofd = open("testdir/wofile", O_WRONLY);	assert(wofd != -1);
+	rwfd = open("testdir/rwfile", O_RDWR);		assert(rwfd != -1);
+
+	status |= attempt(rofd, buf, SIZE,  0, WRITE, -EBADF);
+	status |= attempt(wofd, buf, SIZE,  0,  READ, -EBADF);
+	status |= attempt(rwfd, buf, SIZE,  0, WRITE, SIZE);
+	status |= attempt(rwfd, buf, SIZE,  0,  READ, SIZE);
+	status |= attempt(rwfd, buf, SIZE, -1,  READ, -EINVAL);
+	status |= attempt(rwfd, buf, SIZE, -1, WRITE, -EINVAL);
+
+	rwfd = open("testdir/rwfile", O_RDWR|O_APPEND);	assert(rwfd != -1);
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+	status |= attempt(rwfd, buf,    SIZE, 0,  READ, 0);
+	status |= attempt(rwfd, "1234",    4, 0, WRITE, 4);
+	status |= attempt(rwfd, "5678",    4, 0, WRITE, 4);
+	memset(buf, 0, SIZE);
+	status |= attempt(rwfd,    buf, SIZE, 0,  READ, 8);
+	printf("read after append: [%s]\n", buf);
+	assert(memcmp(buf, "12345678", 8) == 0);
+
+	status |= attempt(rwfd, KERNEL_RW_POINTER, SIZE, 0,  READ, -EFAULT);
+	status |= attempt(rwfd, KERNEL_RW_POINTER, SIZE, 0, WRITE, -EFAULT);
+
+	/* Some architectures map the 0 page.  Ugh. */
+#if !defined(__ia64__)
+	status |= attempt(rwfd,              NULL, SIZE, 0, WRITE, -EFAULT);
+#endif
+
+	return status;
+}
+
diff --git a/harness/cases/5.t b/harness/cases/5.t
new file mode 100644
index 0000000..2b4b4bb
--- /dev/null
+++ b/harness/cases/5.t
@@ -0,0 +1,54 @@
+/* 5.t
+- Write from a mmap() of the same file. (5.t)
+*/
+#include "aio_setup.h"
+#include <sys/mman.h>
+#include <errno.h>
+
+int test_main(void)
+{
+	int page_size = getpagesize();
+#define SIZE	512
+	char *buf;
+	int rwfd;
+	int	status = 0, res;
+
+	rwfd = open("testdir/rwfile", O_RDWR);		assert(rwfd != -1);
+	res = ftruncate(rwfd, 512);			assert(res == 0);
+
+	buf = mmap(0, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, SIZE);
+
+	res = munmap(buf, page_size);			assert(res == 0);
+	buf = mmap(0, page_size, PROT_READ|PROT_WRITE, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, SIZE);
+
+	res = munmap(buf, page_size);			assert(res == 0);
+	buf = mmap(0, page_size, PROT_READ, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, -EFAULT);
+
+	res = munmap(buf, page_size);			assert(res == 0);
+	buf = mmap(0, page_size, PROT_WRITE, MAP_SHARED, rwfd, 0);
+	assert(buf != (char *)-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,  0,  READ, SIZE);
+
+	/* Whether PROT_WRITE is readable is arch-dependent.  So compare
+	 * against read result. */
+	res = read(rwfd, buf, SIZE);
+	if (res < 0)
+		res = -errno;
+	status |= attempt_rw(rwfd, buf, SIZE,  0, WRITE, res);
+
+	return status;
+}
+
diff --git a/harness/cases/6.t b/harness/cases/6.t
new file mode 100644
index 0000000..cea4b01
--- /dev/null
+++ b/harness/cases/6.t
@@ -0,0 +1,57 @@
+/* 6.t
+- huge reads (pinned pages) (6.t)
+- huge writes (6.t)
+*/
+#include "aio_setup.h"
+#include <sys/mman.h>
+
+long getmemsize(void)
+{
+	FILE *f = fopen("/proc/meminfo", "r");
+	long size;
+	int gotit = 0;
+	char str[256];
+
+	assert(f != NULL);
+	while (NULL != fgets(str, 255, f)) {
+		str[255] = 0;
+		if (0 == memcmp(str, "MemTotal:", 9)) {
+			if (1 == sscanf(str + 9, "%ld", &size)) {
+				gotit = 1;
+				break;
+			}
+		}
+	}
+	fclose(f);
+
+	assert(gotit != 0);
+	return size;
+}
+
+int test_main(void)
+{
+	char *buf;
+	int rwfd;
+	int status = 0, res;
+	long size;
+
+	size = getmemsize();
+	printf("size = %ld\n", size);
+	assert(size >= (16 * 1024));
+	if (size > (768 * 1024))
+		size = 768 * 1024;
+	size *= 1024;
+
+	rwfd = open("testdir/rwfile", O_RDWR);		assert(rwfd != -1);
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+	buf = malloc(size);				assert(buf != NULL);
+
+	//memset(buf, 0, size);
+	status |= attempt_rw(rwfd, buf, size,  0, WRITE, size);
+	status |= attempt_rw(rwfd, buf, size,  0,  READ, size);
+
+	//res = ftruncate(rwfd, 0);			assert(res == 0);
+
+	return status;
+}
+
diff --git a/harness/cases/7.t b/harness/cases/7.t
new file mode 100644
index 0000000..f877d8a
--- /dev/null
+++ b/harness/cases/7.t
@@ -0,0 +1,30 @@
+/* 7.t
+- Write overlapping the file size rlimit boundary: should be a short
+  write. (7.t)
+- Write at the file size rlimit boundary: should give EFBIG.  (I think
+  the spec requires that you do NOT deliver SIGXFSZ in this case, where
+  you would do so for sync IO.) (7.t)
+- Special case: a write of zero bytes at or beyond the file size rlimit
+  boundary must return success. (7.t)
+*/
+
+#include <sys/resource.h>
+#include <signal.h>
+
+void SET_RLIMIT(long long limit)
+{
+	struct rlimit rlim;
+	int res;
+
+	/* Seems that we do send SIGXFSZ, but hard to fix... */
+	signal(SIGXFSZ, SIG_IGN);
+	rlim.rlim_cur = limit;			assert(rlim.rlim_cur == limit);
+	rlim.rlim_max = limit;			assert(rlim.rlim_max == limit);
+
+	res = setrlimit(RLIMIT_FSIZE, &rlim);	assert(res == 0);
+}
+
+#define LIMIT	8192
+#define FILENAME	"testdir/rwfile"
+
+#include "common-7-8.h"
diff --git a/harness/cases/8.t b/harness/cases/8.t
new file mode 100644
index 0000000..e59199f
--- /dev/null
+++ b/harness/cases/8.t
@@ -0,0 +1,28 @@
+/* 8.t
+- Ditto for the above three tests at the offset maximum (largest
+  possible ext2/3 file size.) (8.t)
+ */
+#include <sys/types.h>
+#include <unistd.h>
+
+long long get_fs_limit(int fd)
+{
+	long long min = 0, max = 9223372036854775807LL;
+	char c = 0;
+
+	while (max - min > 1) {
+		if (pwrite64(fd, &c, 1, (min + max) / 2) == -1)
+			max = (min + max) / 2;
+		else {
+			ftruncate(fd, 0);
+			min = (min + max) / 2;
+		}
+	}
+	return max;
+}
+
+#define SET_RLIMIT(x)	do ; while (0)
+#define LIMIT		get_fs_limit(rwfd)
+#define FILENAME	"testdir.ext2/rwfile"
+
+#include "common-7-8.h"
diff --git a/harness/cases/aio_setup.h b/harness/cases/aio_setup.h
new file mode 100644
index 0000000..1914915
--- /dev/null
+++ b/harness/cases/aio_setup.h
@@ -0,0 +1,108 @@
+#include <time.h>
+io_context_t	io_ctx;
+#define BAD_CTX	((io_context_t)-1)
+
+void aio_setup(int n)
+{
+	int res = io_queue_init(n, &io_ctx);
+	if (res != 0) {
+		printf("io_queue_setup(%d) returned %d (%s)\n",
+			n, res, strerror(-res));
+		exit(3);
+	}
+}
+
+int attempt_io_submit(io_context_t ctx, long nr, struct iocb *ios[], int expect)
+{
+	int res;
+
+	printf("expect %3d: io_submit(%10p, %3ld, %10p) = ", expect, ctx, nr, ios);
+	fflush(stdout);
+	res = io_submit(ctx, nr, ios);
+	printf("%3d [%s]%s\n", res, (res <= 0) ? strerror(-res) : "",
+		(res != expect) ? " -- FAILED" : "");
+	if (res != expect)
+		return 1;
+
+	return 0;
+}
+
+int sync_submit(struct iocb *iocb)
+{
+	struct io_event event;
+	struct iocb *iocbs[] = { iocb };
+	int res;
+
+	/* 30 second timeout should be enough */
+	struct timespec	ts;
+	ts.tv_sec = 30;
+	ts.tv_nsec = 0;
+
+	res = io_submit(io_ctx, 1, iocbs);
+	if (res != 1) {
+		printf("sync_submit: io_submit res=%d [%s]\n", res, strerror(-res));
+		return res;
+	}
+
+	res = io_getevents(io_ctx, 0, 1, &event, &ts);
+	if (res != 1) {
+		printf("sync_submit: io_getevents res=%d [%s]\n", res, strerror(-res));
+		return res;
+	}
+	return event.res;
+}
+
+#define SETUP	aio_setup(1024)
+
+
+#define READ		'r'
+#define WRITE		'w'
+#define READ_SILENT	'R'
+#define WRITE_SILENT	'W'
+#define READV		'<'
+#define WRITEV		'>'
+
+int attempt_rw(int fd, void *buf, int count, long long pos, int rw, int expect)
+{
+	struct iocb iocb;
+	int res;
+	int silent = 0;
+
+	switch(rw) {
+	case READ_SILENT:
+		silent = 1;
+	case READ:
+		io_prep_pread (&iocb, fd, buf, count, pos);
+		break;
+	case WRITE_SILENT:
+		silent = 1;
+	case WRITE:
+		io_prep_pwrite(&iocb, fd, buf, count, pos);
+		break;
+	case WRITEV:
+		io_prep_pwritev(&iocb, fd, buf, count, pos);
+		break;
+	case READV:
+		io_prep_preadv(&iocb, fd, buf, count, pos);
+		break;
+	}
+
+	if (!silent) {
+		printf("expect %5d: (%c), res = ", expect, rw);
+		fflush(stdout);
+	}
+	res = sync_submit(&iocb);
+	if (!silent || res != expect) {
+		if (silent)
+			printf("expect %5d: (%c), res = ", expect, rw);
+		printf("%5d [%s]%s\n", res,
+			(res <= 0) ? strerror(-res) : "Success",
+			(res != expect) ? " -- FAILED" : "");
+	}
+
+	if (res != expect)
+		return 1;
+
+	return 0;
+}
+
diff --git a/harness/cases/common-7-8.h b/harness/cases/common-7-8.h
new file mode 100644
index 0000000..fc54bbf
--- /dev/null
+++ b/harness/cases/common-7-8.h
@@ -0,0 +1,38 @@
+/* common-7-8.h
+*/
+#include "aio_setup.h"
+
+#include <errno.h>
+#include <unistd.h>
+
+#define SIZE	512
+
+int test_main(void)
+{
+	char *buf;
+	int rwfd;
+	int status = 0, res;
+	long long limit;
+
+	rwfd = open(FILENAME, O_RDWR|O_CREAT, 0600);	assert(rwfd != -1);
+	res = ftruncate(rwfd, 0);			assert(res == 0);
+	buf = malloc(SIZE);				assert(buf != NULL);
+	memset(buf, 0, SIZE);
+
+	limit = LIMIT;
+
+	SET_RLIMIT(limit);
+
+	status |= attempt_rw(rwfd, buf, SIZE,   limit-SIZE, WRITE, SIZE);
+	status |= attempt_rw(rwfd, buf, SIZE,   limit-SIZE,  READ, SIZE);
+
+	status |= attempt_rw(rwfd, buf, SIZE, 1+limit-SIZE, WRITE, SIZE-1);
+	status |= attempt_rw(rwfd, buf, SIZE, 1+limit-SIZE,  READ, SIZE-1);
+
+	status |= attempt_rw(rwfd, buf, SIZE,        limit, WRITE, -EFBIG);
+	status |= attempt_rw(rwfd, buf, SIZE,        limit,  READ,      0);
+	status |= attempt_rw(rwfd, buf,    0,        limit, WRITE,      0);
+
+	return status;
+}
+
diff --git a/harness/ext2-enospc.img b/harness/ext2-enospc.img
new file mode 100644
index 0000000..fa56745
--- /dev/null
+++ b/harness/ext2-enospc.img
Binary files differ
diff --git a/harness/main.c b/harness/main.c
new file mode 100644
index 0000000..9ecd5da
--- /dev/null
+++ b/harness/main.c
@@ -0,0 +1,40 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <errno.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <libaio.h>
+
+#if __LP64__ == 0
+#define KERNEL_RW_POINTER	((void *)0xc0010000)
+#else
+//#warning Not really sure where kernel memory is.  Guessing.
+#define KERNEL_RW_POINTER	((void *)0xffffffff81000000)
+#endif
+
+
+char test_name[] = TEST_NAME;
+
+#include TEST_NAME
+
+int main(void)
+{
+	int res;
+
+#if defined(SETUP)
+	SETUP;
+#endif
+
+	res = test_main();
+	printf("test %s completed %s.\n", test_name, 
+		res ? "FAILED" : "PASSED"
+		);
+	fflush(stdout);
+	return res ? 1 : 0;
+}
diff --git a/harness/runtests.sh b/harness/runtests.sh
new file mode 100755
index 0000000..717c72a
--- /dev/null
+++ b/harness/runtests.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+passes=0
+fails=0
+
+echo "Test run starting at" `date`
+
+while [ $# -ge 1 ] ; do
+	this_test=$1
+	shift
+	echo "Starting $this_test"
+	$this_test 2>&1
+	res=$?
+	if [ $res -eq 0 ] ; then str="" ; passes=$[passes + 1] ; else str=" -- FAILED" ; fails=$[fails + 1] ; fi
+	echo "Completed $this_test with $res$str".
+done
+
+echo "Pass: $passes  Fail: $fails"
+echo "Test run complete at" `date`
diff --git a/io_cancel.c b/io_cancel.c
new file mode 100644
index 0000000..2f0f5f4
--- /dev/null
+++ b/io_cancel.c
@@ -0,0 +1,23 @@
+/* io_cancel.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <libaio.h>
+#include "syscall.h"
+
+io_syscall3(int, io_cancel_0_4, io_cancel, io_context_t, ctx, struct iocb *, iocb, struct io_event *, event)
+DEFSYMVER(io_cancel_0_4, io_cancel, 0.4)
diff --git a/io_destroy.c b/io_destroy.c
new file mode 100644
index 0000000..0ab6bd1
--- /dev/null
+++ b/io_destroy.c
@@ -0,0 +1,23 @@
+/* io_destroy
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <errno.h>
+#include <libaio.h>
+#include "syscall.h"
+
+io_syscall1(int, io_destroy, io_destroy, io_context_t, ctx)
diff --git a/io_getevents.c b/io_getevents.c
new file mode 100644
index 0000000..5a05174
--- /dev/null
+++ b/io_getevents.c
@@ -0,0 +1,57 @@
+/* io_getevents.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <libaio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+#include "syscall.h"
+
+io_syscall5(int, __io_getevents_0_4, io_getevents, io_context_t, ctx, long, min_nr, long, nr, struct io_event *, events, struct timespec *, timeout)
+
+#define AIO_RING_MAGIC                  0xa10a10a1
+
+/* Ben will hate me for this */
+struct aio_ring {
+	unsigned        id;     /* kernel internal index number */
+	unsigned        nr;     /* number of io_events */
+	unsigned        head;
+	unsigned        tail;
+ 
+	unsigned        magic;
+	unsigned        compat_features;
+	unsigned        incompat_features;
+	unsigned        header_length;  /* size of aio_ring */
+};
+
+int io_getevents_0_4(io_context_t ctx, long min_nr, long nr, struct io_event * events, struct timespec * timeout)
+{
+	struct aio_ring *ring;
+	ring = (struct aio_ring*)ctx;
+	if (ring==NULL || ring->magic != AIO_RING_MAGIC)
+		goto do_syscall;
+	if (timeout!=NULL && timeout->tv_sec == 0 && timeout->tv_nsec == 0) {
+		if (ring->head == ring->tail)
+			return 0;
+	}
+	
+do_syscall:	
+	return __io_getevents_0_4(ctx, min_nr, nr, events, timeout);
+}
+
+DEFSYMVER(io_getevents_0_4, io_getevents, 0.4)
diff --git a/io_queue_init.c b/io_queue_init.c
new file mode 100644
index 0000000..563d137
--- /dev/null
+++ b/io_queue_init.c
@@ -0,0 +1,33 @@
+/* io_queue_init.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <libaio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+#include "syscall.h"
+
+int io_queue_init(int maxevents, io_context_t *ctxp)
+{
+	if (maxevents > 0) {
+		*ctxp = NULL;
+		return io_setup(maxevents, ctxp);
+	}
+	return -EINVAL;
+}
diff --git a/io_queue_release.c b/io_queue_release.c
new file mode 100644
index 0000000..94bbb86
--- /dev/null
+++ b/io_queue_release.c
@@ -0,0 +1,27 @@
+/* io_queue_release.c
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <libaio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+int io_queue_release(io_context_t ctx)
+{
+	return io_destroy(ctx);
+}
diff --git a/io_queue_run.c b/io_queue_run.c
new file mode 100644
index 0000000..e0132f4
--- /dev/null
+++ b/io_queue_run.c
@@ -0,0 +1,39 @@
+/* io_submit
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <libaio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <time.h>
+
+int io_queue_run(io_context_t ctx)
+{
+	static struct timespec timeout = { 0, 0 };
+	struct io_event event;
+	int ret;
+
+	/* FIXME: batch requests? */
+	while (1 == (ret = io_getevents(ctx, 0, 1, &event, &timeout))) {
+		io_callback_t cb = (io_callback_t)event.data;
+		struct iocb *iocb = event.obj;
+
+		cb(ctx, iocb, event.res, event.res2);
+	}
+
+	return ret;
+}
diff --git a/io_queue_wait.c b/io_queue_wait.c
new file mode 100644
index 0000000..538d2f3
--- /dev/null
+++ b/io_queue_wait.c
@@ -0,0 +1,31 @@
+/* io_submit
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#define NO_SYSCALL_ERRNO
+#include <sys/types.h>
+#include <libaio.h>
+#include <errno.h>
+#include "syscall.h"
+
+struct timespec;
+
+int io_queue_wait_0_4(io_context_t ctx, struct timespec *timeout)
+{
+	return io_getevents(ctx, 0, 0, NULL, timeout);
+}
+DEFSYMVER(io_queue_wait_0_4, io_queue_wait, 0.4)
diff --git a/io_setup.c b/io_setup.c
new file mode 100644
index 0000000..4ba1afc
--- /dev/null
+++ b/io_setup.c
@@ -0,0 +1,23 @@
+/* io_setup
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <errno.h>
+#include <libaio.h>
+#include "syscall.h"
+
+io_syscall2(int, io_setup, io_setup, int, maxevents, io_context_t *, ctxp)
diff --git a/io_submit.c b/io_submit.c
new file mode 100644
index 0000000..e22ba54
--- /dev/null
+++ b/io_submit.c
@@ -0,0 +1,23 @@
+/* io_submit
+   libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#include <errno.h>
+#include <libaio.h>
+#include "syscall.h"
+
+io_syscall3(int, io_submit, io_submit, io_context_t, ctx, long, nr, struct iocb **, iocbs)
diff --git a/libaio.h b/libaio.h
new file mode 100644
index 0000000..b0d5ab9
--- /dev/null
+++ b/libaio.h
@@ -0,0 +1,265 @@
+/* /usr/include/libaio.h
+ *
+ * Copyright 2000,2001,2002 Red Hat, Inc.
+ *
+ * Written by Benjamin LaHaise <bcrl@redhat.com>
+ *
+ * libaio Linux async I/O interface
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+#ifndef __LIBAIO_H
+#define __LIBAIO_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/types.h>
+#include <string.h>
+
+struct timespec;
+struct sockaddr;
+struct iovec;
+
+typedef struct io_context *io_context_t;
+
+typedef enum io_iocb_cmd {
+	IO_CMD_PREAD = 0,
+	IO_CMD_PWRITE = 1,
+
+	IO_CMD_FSYNC = 2,
+	IO_CMD_FDSYNC = 3,
+
+	IO_CMD_POLL = 5, /* Never implemented in mainline, see io_prep_poll */
+	IO_CMD_NOOP = 6,
+	IO_CMD_PREADV = 7,
+	IO_CMD_PWRITEV = 8,
+} io_iocb_cmd_t;
+
+/* little endian, 32 bits */
+#if defined(__i386__) || (defined(__arm__) && !defined(__ARMEB__)) || \
+    defined(__sh__) || defined(__bfin__) || defined(__MIPSEL__) || \
+    defined(__cris__)
+#define PADDED(x, y)    x; unsigned y
+#define PADDEDptr(x, y) x; unsigned y
+#define PADDEDul(x, y)  unsigned long x; unsigned y
+
+/* little endian, 64 bits */
+#elif defined(__ia64__) || defined(__x86_64__) || defined(__alpha__) || \
+      (defined(__aarch64__) && defined(__AARCH64EL__)) || \
+      (defined(__powerpc64__) && defined(_LITTLE_ENDIAN))
+#define PADDED(x, y)    x, y
+#define PADDEDptr(x, y) x
+#define PADDEDul(x, y)  unsigned long x
+
+/* big endian, 64 bits */
+#elif (defined(__powerpc64__) && defined(_BIG_ENDIAN)) || \
+      defined(__s390x__) || \
+      (defined(__sparc__) && defined(__arch64__)) || \
+      (defined(__aarch64__) && defined(__AARCH64EB__))
+#define PADDED(x, y)    unsigned y; x
+#define PADDEDptr(x,y)  x
+#define PADDEDul(x, y)  unsigned long x
+
+/* big endian, 32 bits */
+#elif defined(__PPC__) || defined(__s390__) || \
+      (defined(__arm__) && defined(__ARMEB__)) || \
+      defined(__sparc__) || defined(__MIPSEB__) || defined(__m68k__) || \
+      defined(__hppa__) || defined(__frv__) || defined(__avr32__)
+#define PADDED(x, y)    unsigned y; x
+#define PADDEDptr(x, y) unsigned y; x
+#define PADDEDul(x, y)  unsigned y; unsigned long x
+
+#else
+#error  endian?
+#endif
+
+struct io_iocb_poll {
+	PADDED(int events, __pad1);
+};	/* result code is the set of result flags or -'ve errno */
+
+struct io_iocb_sockaddr {
+	struct sockaddr *addr;
+	int		len;
+};	/* result code is the length of the sockaddr, or -'ve errno */
+
+struct io_iocb_common {
+	PADDEDptr(void	*buf, __pad1);
+	PADDEDul(nbytes, __pad2);
+	long long	offset;
+	long long	__pad3;
+	unsigned	flags;
+	unsigned	resfd;
+};	/* result code is the amount read or -'ve errno */
+
+struct io_iocb_vector {
+	const struct iovec	*vec;
+	int			nr;
+	long long		offset;
+};	/* result code is the amount read or -'ve errno */
+
+struct iocb {
+	PADDEDptr(void *data, __pad1);	/* Return in the io completion event */
+	PADDED(unsigned key, __pad2);	/* For use in identifying io requests */
+
+	short		aio_lio_opcode;	
+	short		aio_reqprio;
+	int		aio_fildes;
+
+	union {
+		struct io_iocb_common		c;
+		struct io_iocb_vector		v;
+		struct io_iocb_poll		poll;
+		struct io_iocb_sockaddr	saddr;
+	} u;
+};
+
+struct io_event {
+	PADDEDptr(void *data, __pad1);
+	PADDEDptr(struct iocb *obj,  __pad2);
+	PADDEDul(res,  __pad3);
+	PADDEDul(res2, __pad4);
+};
+
+#undef PADDED
+#undef PADDEDptr
+#undef PADDEDul
+
+typedef void (*io_callback_t)(io_context_t ctx, struct iocb *iocb, long res, long res2);
+
+/* library wrappers */
+extern int io_queue_init(int maxevents, io_context_t *ctxp);
+/*extern int io_queue_grow(io_context_t ctx, int new_maxevents);*/
+extern int io_queue_release(io_context_t ctx);
+/*extern int io_queue_wait(io_context_t ctx, struct timespec *timeout);*/
+extern int io_queue_run(io_context_t ctx);
+
+/* Actual syscalls */
+extern int io_setup(int maxevents, io_context_t *ctxp);
+extern int io_destroy(io_context_t ctx);
+extern int io_submit(io_context_t ctx, long nr, struct iocb *ios[]);
+extern int io_cancel(io_context_t ctx, struct iocb *iocb, struct io_event *evt);
+extern int io_getevents(io_context_t ctx_id, long min_nr, long nr, struct io_event *events, struct timespec *timeout);
+
+
+static inline void io_set_callback(struct iocb *iocb, io_callback_t cb)
+{
+	iocb->data = (void *)cb;
+}
+
+static inline void io_prep_pread(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PREAD;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = buf;
+	iocb->u.c.nbytes = count;
+	iocb->u.c.offset = offset;
+}
+
+static inline void io_prep_pwrite(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PWRITE;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = buf;
+	iocb->u.c.nbytes = count;
+	iocb->u.c.offset = offset;
+}
+
+static inline void io_prep_preadv(struct iocb *iocb, int fd, const struct iovec *iov, int iovcnt, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PREADV;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = (void *)iov;
+	iocb->u.c.nbytes = iovcnt;
+	iocb->u.c.offset = offset;
+}
+
+static inline void io_prep_pwritev(struct iocb *iocb, int fd, const struct iovec *iov, int iovcnt, long long offset)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_PWRITEV;
+	iocb->aio_reqprio = 0;
+	iocb->u.c.buf = (void *)iov;
+	iocb->u.c.nbytes = iovcnt;
+	iocb->u.c.offset = offset;
+}
+
+/* Jeff Moyer says this was implemented in Red Hat AS2.1 and RHEL3.
+ * AFAICT, it was never in mainline, and should not be used. --RR */
+static inline void io_prep_poll(struct iocb *iocb, int fd, int events)
+{
+        memset(iocb, 0, sizeof(*iocb));
+        iocb->aio_fildes = fd;
+        iocb->aio_lio_opcode = IO_CMD_POLL;
+        iocb->aio_reqprio = 0;
+        iocb->u.poll.events = events;
+}
+
+static inline int io_poll(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd, int events)
+{
+        io_prep_poll(iocb, fd, events);
+        io_set_callback(iocb, cb);
+        return io_submit(ctx, 1, &iocb);
+}
+
+static inline void io_prep_fsync(struct iocb *iocb, int fd)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_FSYNC;
+	iocb->aio_reqprio = 0;
+}
+
+static inline int io_fsync(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd)
+{
+	io_prep_fsync(iocb, fd);
+	io_set_callback(iocb, cb);
+	return io_submit(ctx, 1, &iocb);
+}
+
+static inline void io_prep_fdsync(struct iocb *iocb, int fd)
+{
+	memset(iocb, 0, sizeof(*iocb));
+	iocb->aio_fildes = fd;
+	iocb->aio_lio_opcode = IO_CMD_FDSYNC;
+	iocb->aio_reqprio = 0;
+}
+
+static inline int io_fdsync(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd)
+{
+	io_prep_fdsync(iocb, fd);
+	io_set_callback(iocb, cb);
+	return io_submit(ctx, 1, &iocb);
+}
+
+static inline void io_set_eventfd(struct iocb *iocb, int eventfd)
+{
+	iocb->u.c.flags |= (1 << 0) /* IOCB_FLAG_RESFD */;
+	iocb->u.c.resfd = eventfd;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LIBAIO_H */
diff --git a/libaio.lds b/libaio.lds
new file mode 100644
index 0000000..dc37725
--- /dev/null
+++ b/libaio.lds
@@ -0,0 +1,22 @@
+LIBAIO_0.1 {
+	global:
+		io_queue_init;
+		io_queue_run;
+		io_queue_wait;
+		io_queue_release;
+		io_cancel;
+		io_submit;
+		io_getevents;
+	local:
+		*;
+
+};
+
+LIBAIO_0.4 {
+	global:
+		io_setup;
+		io_destroy;
+		io_cancel;
+		io_getevents;
+		io_queue_wait;
+} LIBAIO_0.1;
diff --git a/libaio.map b/libaio.map
new file mode 100644
index 0000000..dc37725
--- /dev/null
+++ b/libaio.map
@@ -0,0 +1,22 @@
+LIBAIO_0.1 {
+	global:
+		io_queue_init;
+		io_queue_run;
+		io_queue_wait;
+		io_queue_release;
+		io_cancel;
+		io_submit;
+		io_getevents;
+	local:
+		*;
+
+};
+
+LIBAIO_0.4 {
+	global:
+		io_setup;
+		io_destroy;
+		io_cancel;
+		io_getevents;
+		io_queue_wait;
+} LIBAIO_0.1;
diff --git a/libaio.spec b/libaio.spec
new file mode 100644
index 0000000..32b0d42
--- /dev/null
+++ b/libaio.spec
@@ -0,0 +1,196 @@
+Name: libaio
+Version: 0.3.109
+Release: 1
+Summary: Linux-native asynchronous I/O access library
+License: LGPL
+Group:  System Environment/Libraries
+Source: %{name}-%{version}.tar.gz
+BuildRoot: %{_tmppath}/%{name}-root
+# Fix ExclusiveArch as we implement this functionality on more architectures
+ExclusiveArch: i386 x86_64 ia64 s390 s390x ppc ppc64 ppc64pseries ppc64iseries alpha alphaev6 %{arm}
+
+%description
+The Linux-native asynchronous I/O facility ("async I/O", or "aio") has a
+richer API and capability set than the simple POSIX async I/O facility.
+This library, libaio, provides the Linux-native API for async I/O.
+The POSIX async I/O facility requires this library in order to provide
+kernel-accelerated async I/O capabilities, as do applications which
+require the Linux-native async I/O API.
+
+%package devel
+Summary: Development files for Linux-native asynchronous I/O access
+Group: Development/System
+Requires: libaio
+Provides: libaio.so.1
+
+%description devel
+This package provides header files to include and libraries to link with
+for the Linux-native asynchronous I/O facility ("async I/O", or "aio").
+
+%prep
+%setup
+
+%build
+make
+
+%install
+[ "$RPM_BUILD_ROOT" != "/" ] && rm -rf $RPM_BUILD_ROOT
+
+make install prefix=$RPM_BUILD_ROOT/usr \
+ libdir=$RPM_BUILD_ROOT/%{_libdir} \
+ root=$RPM_BUILD_ROOT
+
+%clean
+[ "$RPM_BUILD_ROOT" != "/" ] && rm -rf $RPM_BUILD_ROOT
+
+%post -p /sbin/ldconfig
+
+%postun -p /sbin/ldconfig
+
+%files
+%defattr(-,root,root)
+%attr(0755,root,root) %{_libdir}/libaio.so.*
+%doc COPYING TODO
+
+%files devel
+%defattr(-,root,root)
+%attr(0644,root,root) %{_includedir}/*
+%attr(0755,root,root) %{_libdir}/libaio.so
+%attr(0644,root,root) %{_libdir}/libaio.a
+
+%changelog
+* Tue Jun  9 2009 Jeff Moyer <jmoyer@redhat.com> - 0.3.108-1
+- add ARM architecture support (grabbed from Debian arches tree)
+- replace check of __i386__ with __LP64__ in test harness (Jeff Moyer)
+- change the .spec's copyright tag to license
+
+* Wed Jan  9 2008 Jeff Moyer <jmoyer@redhat.com> - 0.3.107-1
+- Fix the test harness (Rusty Russell)
+- Add eventfd support (Rusty Russell)
+
+* Tue Jan  3 2006 Jeff Moyer <jmoyer@redhat.com> - 0.3.106-1
+- Add a .proc directive for the ia64_aio_raw_syscall macro.  This sounds a lot
+  like the previous entry, but that one fixed the __ia64_raw_syscall macro,
+  located in syscall-ia64.h.  This macro is in raw_syscall.c, which pretty much
+  only exists for ia64.  This bug prevented the package from building with
+  newer version of gcc.
+
+* Mon Aug  1 2005 Jeff Moyer <jmoyer@redhat.com> - 0.3.105-1
+- Add a .proc directive for the ia64 raw syscall macro.
+
+* Fri Apr  1 2005 Jeff Moyer <jmoyer@redhat.com> - 0.3.104-1
+- Add Alpha architecture support.  (Sergey Tikhonov <tsv@solvo.ru>)
+
+* Tue Jan 25 2005 Jeff Moyer <jmoyer@redhat.com> - 0.3.103-1
+- Fix SONAME breakage.  In changing file names around, I also changed the 
+  SONAME, which is a no no.
+
+* Thu Oct 14 2004 Jeff Moyer <jmoyer@redhat.com> - 0.3.102-1
+- S390 asm had a bug; I forgot to update the clobber list.  Lucky for me,
+  newer compilers complain about such things.
+- Also update the s390 asm to look more like the new kernel variants.
+
+* Wed Oct 13 2004 Jeff Moyer <jmoyer@redhat.com> - 0.3.101-1
+- Revert syscall return values to be -ERRNO.  This was an inadvertant bug
+  introduced when clobber lists changed.
+- add ppc64pseries and ppc64iseries to exclusivearch
+
+* Tue Sep 14 2004 Jeff Moyer <jmoyer@redhat.com> - 0.3.100-1
+- Switch around the tests for _PPC_ and _powerpc64_ so that the ppc64 
+  platforms get the right padding.
+
+* Wed Jul 14 2004 Jeff Moyer <jmoyer@redhat.com> - 0.3.99-4
+- Ok, there was a race in moving the cvs module.  Someone rebuild from
+  the old cvs into fc3.  *sigh*  bumping rev.
+
+* Wed Jul 14 2004 Jeff Moyer <jmoyer@redhat.com> - 0.3.99-3
+- Actually provide libaio.so.1.
+
+* Tue Mar 30 2004 Jeff Moyer <jmoyer@redhat.com> - 0.3.99-2
+- Apparently the 0.3.93 patch was not meant for 0.3.96.  Backed it out.
+
+* Tue Mar 30 2004 Jeff Moyer <jmoyer@redhat.com> - 0.3.99-1
+- Fix compat calls.
+- make library .so.1.0.0 and make symlinks properly.
+- Fix header file for inclusion in c++ code.
+
+* Thu Feb 26 2004 Jeff Moyer <jmoyer@redhat.com> 0.3.98-2
+- bah.  fix version nr in changelog.
+
+* Thu Feb 26 2004 Jeff Moyer <jmoyer@redhat.com> 0.3.98-1
+- fix compiler warnings.
+
+* Thu Feb 26 2004 Jeff Moyer <jmoyer@redhat.com> 0.3.97-2
+- make srpm was using rpm to do a build.  changed that to use rpmbuild if
+  it exists, and fallback to rpm if it doesn't.
+
+* Tue Feb 24 2004 Jeff Moyer <jmoyer@redhat.com> 0.3.97-1
+- Use libc syscall(2) instead of rolling our own calling mechanism.  This 
+  change is inspired due to a failure to build with newer gcc, since clobber 
+  lists were wrong.
+- Add -fpic to the CFLAGS for all architectures.  Should address bz #109457.
+- change a #include from <linux/types.h> to <sys/types.h>.  Fixes a build
+  issue on s390.
+
+* Wed Jul  7 2003 Bill Nottingham <notting@redhat.com> 0.3.96-3
+- fix paths on lib64 arches
+
+* Wed Jun 18 2003 Michael K. Johnson <johnsonm@redhat.com> 0.3.96-2
+- optimization in io_getevents from Arjan van de Ven in 0.3.96-1
+- deal with ia64 in 0.3.96-2
+
+* Wed May 28 2003 Michael K. Johnson <johnsonm@redhat.com> 0.3.95-1
+- ppc bugfix from Julie DeWandel
+
+* Tue May 20 2003 Michael K. Johnson <johnsonm@redhat.com> 0.3.94-1
+- symbol versioning fix from Ulrich Drepper
+
+* Mon Jan 27 2003 Benjamin LaHaise <bcrl@redhat.com>
+- bump to 0.3.93-3 for rebuild.
+
+* Mon Dec 16 2002 Benjamin LaHaise <bcrl@redhat.com>
+- libaio 0.3.93 test release
+- add powerpc support from Gianni Tedesco <gianni@ecsc.co.uk>
+- add s/390 support from Arnd Bergmann <arnd@bergmann-dalldorf.de>
+
+* Fri Sep 12 2002 Benjamin LaHaise <bcrl@redhat.com>
+- libaio 0.3.92 test release
+- build on x86-64
+
+* Thu Sep 12 2002 Benjamin LaHaise <bcrl@redhat.com>
+- libaio 0.3.91 test release
+- build on ia64
+- remove libredhat-kernel from the .spec file
+
+* Thu Sep  5 2002 Benjamin LaHaise <bcrl@redhat.com>
+- libaio 0.3.90 test release
+
+* Mon Apr 29 2002 Benjamin LaHaise <bcrl@redhat.com>
+- add requires initscripts >= 6.47-1 to get boot time libredhat-kernel 
+  linkage correct.
+- typo fix
+
+* Thu Apr 25 2002 Benjamin LaHaise <bcrl@redhat.com>
+- make /usr/lib/libredhat-kernel.so point to /lib/libredhat-kernel.so.1.0.0
+
+* Mon Apr 15 2002 Tim Powers <timp@redhat.com>
+- make the post scriptlet not use /bin/sh
+
+* Sat Apr 12 2002 Benjamin LaHaise <bcrl@redhat.com>
+- add /lib/libredhat-kernel* to %files.
+
+* Fri Apr 12 2002 Benjamin LaHaise <bcrl@redhat.com>
+- make the dummy install as /lib/libredhat-kernel.so.1.0.0 so 
+  that ldconfig will link against it if no other is installed.
+
+* Tue Jan 22 2002 Benjamin LaHaise <bcrl@redhat.com>
+- add io_getevents
+
+* Tue Jan 22 2002 Michael K. Johnson <johnsonm@redhat.com>
+- Make linker happy with /usr/lib symlink for libredhat-kernel.so
+
+* Mon Jan 21 2002 Michael K. Johnson <johnsonm@redhat.com>
+- Added stub library
+
+* Sun Jan 20 2002 Michael K. Johnson <johnsonm@redhat.com>
+- Initial packaging
diff --git a/man/aio.3 b/man/aio.3
new file mode 100644
index 0000000..6dc3c63
--- /dev/null
+++ b/man/aio.3
@@ -0,0 +1,315 @@
+.TH aio 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio \- Asynchronous IO
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.fi
+.SH DESCRIPTION
+The POSIX.1b standard defines a new set of I/O operations which can
+significantly reduce the time an application spends waiting at I/O.  The
+new functions allow a program to initiate one or more I/O operations and
+then immediately resume normal work while the I/O operations are
+executed in parallel.  This functionality is available if the
+.IR "unistd.h"
+file defines the symbol 
+.B "_POSIX_ASYNCHRONOUS_IO"
+.
+
+These functions are part of the library with realtime functions named
+.IR "librt"
+.  They are not actually part of the 
+.IR "libc" 
+binary.
+The implementation of these functions can be done using support in the
+kernel (if available) or using an implementation based on threads at
+userlevel.  In the latter case it might be necessary to link applications
+with the thread library 
+.IR "libpthread"
+in addition to 
+.IR "librt"
+and
+.IR "libaio"
+.
+
+All AIO operations operate on files which were opened previously.  There
+might be arbitrarily many operations running for one file.  The
+asynchronous I/O operations are controlled using a data structure named
+.IR "struct aiocb"
+It is defined in
+.IR "aio.h"
+ as follows.
+
+.nf
+struct aiocb
+{
+  int aio_fildes;               /* File desriptor.  */
+  int aio_lio_opcode;           /* Operation to be performed.  */
+  int aio_reqprio;              /* Request priority offset.  */
+  volatile void *aio_buf;       /* Location of buffer.  */
+  size_t aio_nbytes;            /* Length of transfer.  */
+  struct sigevent aio_sigevent; /* Signal number and value.  */
+
+  /* Internal members.  */
+  struct aiocb *__next_prio;
+  int __abs_prio;
+  int __policy;
+  int __error_code;
+  __ssize_t __return_value;
+
+#ifndef __USE_FILE_OFFSET64
+  __off_t aio_offset;           /* File offset.  */
+  char __pad[sizeof (__off64_t) - sizeof (__off_t)];
+#else
+  __off64_t aio_offset;         /* File offset.  */
+#endif
+  char __unused[32];
+};
+
+.fi
+The POSIX.1b standard mandates that the 
+.IR "struct aiocb" 
+structure
+contains at least the members described in the following table.  There
+might be more elements which are used by the implementation, but
+depending upon these elements is not portable and is highly deprecated.
+
+.TP
+.IR "int aio_fildes"
+This element specifies the file descriptor to be used for the
+operation.  It must be a legal descriptor, otherwise the operation will
+fail.
+
+The device on which the file is opened must allow the seek operation.
+I.e., it is not possible to use any of the AIO operations on devices
+like terminals where an 
+.IR "lseek"
+ call would lead to an error.
+.TP
+.IR "off_t aio_offset"
+This element specifies the offset in the file at which the operation (input
+or output) is performed.  Since the operations are carried out in arbitrary
+order and more than one operation for one file descriptor can be
+started, one cannot expect a current read/write position of the file
+descriptor.
+.TP
+.IR "volatile void *aio_buf"
+This is a pointer to the buffer with the data to be written or the place
+where the read data is stored.
+.TP
+.IR "size_t aio_nbytes"
+This element specifies the length of the buffer pointed to by 
+.IR "aio_buf"
+.
+.TP
+.IR "int aio_reqprio"
+If the platform has defined 
+.B "_POSIX_PRIORITIZED_IO"
+and
+.B "_POSIX_PRIORITY_SCHEDULING"
+, the AIO requests are
+processed based on the current scheduling priority.  The
+.IR "aio_reqprio"
+element can then be used to lower the priority of the
+AIO operation.
+.TP
+.IR "struct sigevent aio_sigevent"
+This element specifies how the calling process is notified once the
+operation terminates.  If the 
+.IR "sigev_notify"
+element is
+.B "SIGEV_NONE"
+, no notification is sent.  If it is 
+.B "SIGEV_SIGNAL"
+,
+the signal determined by 
+.IR "sigev_signo"
+is sent.  Otherwise,
+.IR "sigev_notify"
+must be 
+.B "SIGEV_THREAD"
+.  In this case, a thread
+is created which starts executing the function pointed to by
+.IR "sigev_notify_function"
+.
+.TP
+.IR "int aio_lio_opcode"
+This element is only used by the 
+.IR "lio_listio"
+ and
+.IR "lio_listio64"
+ functions.  Since these functions allow an
+arbitrary number of operations to start at once, and each operation can be
+input or output (or nothing), the information must be stored in the
+control block.  The possible values are:
+.TP
+.B "LIO_READ"
+Start a read operation.  Read from the file at position
+.IR "aio_offset"
+ and store the next 
+.IR "aio_nbytes"
+ bytes in the
+buffer pointed to by 
+.IR "aio_buf"
+.
+.TP
+.B "LIO_WRITE"
+Start a write operation.  Write 
+.IR "aio_nbytes" 
+bytes starting at
+.IR "aio_buf"
+into the file starting at position 
+.IR "aio_offset"
+.
+.TP
+.B "LIO_NOP"
+Do nothing for this control block.  This value is useful sometimes when
+an array of 
+.IR "struct aiocb"
+values contains holes, i.e., some of the
+values must not be handled although the whole array is presented to the
+.IR "lio_listio"
+function.
+
+When the sources are compiled using 
+.B "_FILE_OFFSET_BITS == 64"
+on a
+32 bit machine, this type is in fact 
+.IR "struct aiocb64"
+, since the LFS
+interface transparently replaces the 
+.IR "struct aiocb"
+definition.
+.PP
+For use with the AIO functions defined in the LFS, there is a similar type
+defined which replaces the types of the appropriate members with larger
+types but otherwise is equivalent to 
+.IR "struct aiocb"
+.  Particularly,
+all member names are the same.
+
+.nf
+/* The same for the 64bit offsets.  Please note that the members aio_fildes
+   to __return_value have to be the same in aiocb and aiocb64.  */
+#ifdef __USE_LARGEFILE64
+struct aiocb64
+{
+  int aio_fildes;               /* File desriptor.  */
+  int aio_lio_opcode;           /* Operation to be performed.  */
+  int aio_reqprio;              /* Request priority offset.  */
+  volatile void *aio_buf;       /* Location of buffer.  */
+  size_t aio_nbytes;            /* Length of transfer.  */
+  struct sigevent aio_sigevent; /* Signal number and value.  */
+
+  /* Internal members.  */
+  struct aiocb *__next_prio;
+  int __abs_prio;
+  int __policy;
+  int __error_code;
+  __ssize_t __return_value;
+
+  __off64_t aio_offset;         /* File offset.  */
+  char __unused[32];
+};
+
+.fi
+.TP
+.IR "int aio_fildes"
+This element specifies the file descriptor which is used for the
+operation.  It must be a legal descriptor since otherwise the operation
+fails for obvious reasons.
+The device on which the file is opened must allow the seek operation.
+I.e., it is not possible to use any of the AIO operations on devices
+like terminals where an 
+.IR "lseek"
+ call would lead to an error.
+.TP
+.IR "off64_t aio_offset"
+This element specifies at which offset in the file the operation (input
+or output) is performed.  Since the operation are carried in arbitrary
+order and more than one operation for one file descriptor can be
+started, one cannot expect a current read/write position of the file
+descriptor.
+.TP
+.IR "volatile void *aio_buf"
+This is a pointer to the buffer with the data to be written or the place
+where the read data is stored.
+.TP
+.IR "size_t aio_nbytes"
+This element specifies the length of the buffer pointed to by 
+.IR "aio_buf"
+.
+.TP
+.IR "int aio_reqprio"
+If for the platform 
+.B "_POSIX_PRIORITIZED_IO"
+and
+.B "_POSIX_PRIORITY_SCHEDULING"
+are defined the AIO requests are
+processed based on the current scheduling priority.  The
+.IR "aio_reqprio"
+element can then be used to lower the priority of the
+AIO operation.
+.TP
+.IR "struct sigevent aio_sigevent"
+This element specifies how the calling process is notified once the
+operation terminates.  If the 
+.IR "sigev_notify"
+, element is
+.B "SIGEV_NONE"
+no notification is sent.  If it is 
+.B "SIGEV_SIGNAL"
+,
+the signal determined by 
+.IR "sigev_signo"
+is sent.  Otherwise,
+.IR "sigev_notify"
+ must be 
+.B "SIGEV_THREAD"
+in which case a thread
+which starts executing the function pointed to by
+.IR "sigev_notify_function"
+.
+.TP
+.IR "int aio_lio_opcode"
+This element is only used by the 
+.IR "lio_listio"
+and
+.IR "lio_listio64"
+functions.  Since these functions allow an
+arbitrary number of operations to start at once, and since each operation can be
+input or output (or nothing), the information must be stored in the
+control block.  See the description of 
+.IR "struct aiocb"
+for a description
+of the possible values.
+.PP
+When the sources are compiled using 
+.B "_FILE_OFFSET_BITS == 64"
+on a
+32 bit machine, this type is available under the name 
+.IR "struct aiocb64"
+, since the LFS transparently replaces the old interface.
+.SH "RETURN VALUES"
+.SH ERRORS
+.SH "SEE ALSO"
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_cancel.3 b/man/aio_cancel.3
new file mode 100644
index 0000000..502c83c
--- /dev/null
+++ b/man/aio_cancel.3
@@ -0,0 +1,137 @@
+.TH aio_cancel 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_cancel - Cancel asynchronous I/O requests
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_cancel (int fildes " , struct aiocb *aiocbp " )"
+.fi
+.SH DESCRIPTION
+When one or more requests are asynchronously processed, it might be
+useful in some situations to cancel a selected operation, e.g., if it
+becomes obvious that the written data is no longer accurate and would
+have to be overwritten soon.  As an example, assume an application, which
+writes data in files in a situation where new incoming data would have
+to be written in a file which will be updated by an enqueued request.
+The POSIX AIO implementation provides such a function, but this function
+is not capable of forcing the cancellation of the request.  It is up to the
+implementation to decide whether it is possible to cancel the operation
+or not.  Therefore using this function is merely a hint.
+.B "The libaio implementation does not implement the cancel operation in the"
+.B "POSIX libraries".
+.PP
+The 
+.IR aio_cancel
+function can be used to cancel one or more
+outstanding requests.  If the 
+.IR aiocbp 
+parameter is 
+.IR NULL
+, the
+function tries to cancel all of the outstanding requests which would process
+the file descriptor 
+.IR fildes 
+(i.e., whose 
+.IR aio_fildes 
+member
+is 
+.IR fildes
+).  If 
+.IR aiocbp is not 
+.IR  NULL
+,
+.IR aio_cancel
+attempts to cancel the specific request pointed to by 
+.IR aiocbp.
+
+For requests which were successfully canceled, the normal notification
+about the termination of the request should take place.  I.e., depending
+on the 
+.IR "struct sigevent" 
+object which controls this, nothing
+happens, a signal is sent or a thread is started.  If the request cannot
+be canceled, it terminates the usual way after performing the operation.
+After a request is successfully canceled, a call to 
+.IR aio_error
+with
+a reference to this request as the parameter will return
+.B ECANCELED
+and a call to 
+.IR aio_return
+will return 
+.IR -1.
+If the request wasn't canceled and is still running the error status is
+still 
+.B EINPROGRESS.
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+, this
+function is in fact 
+.IR aio_cancel64
+since the LFS interface
+transparently replaces the normal implementation.
+
+.SH "RETURN VALUES"
+.TP
+.B AIO_CANCELED
+If there were
+requests which haven't terminated and which were successfully canceled.
+.TP
+.B AIO_NOTCANCELED
+If there is one or more requests left which couldn't be canceled,
+.  In this case
+.IR aio_error
+must be used to find out which of the, perhaps multiple, requests (in
+.IR aiocbp
+is 
+.IR NULL
+) weren't successfully canceled.  
+.TP
+.B AIO_ALLDONE
+If all
+requests already terminated at the time 
+.IR aio_cancel 
+is called the
+return value is 
+.
+.SH ERRORS
+If an error occurred during the execution of 
+.IR aio_cancel 
+the
+function returns 
+.IR -1
+and sets 
+.IR errno
+to one of the following
+values.
+.TP
+.B EBADF
+The file descriptor 
+.IR fildes
+is not valid.
+.TP
+.B ENOSYS
+.IR aio_cancel
+is not implemented.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_cancel64.3 b/man/aio_cancel64.3
new file mode 100644
index 0000000..ede775b
--- /dev/null
+++ b/man/aio_cancel64.3
@@ -0,0 +1,50 @@
+.TH aio_cancel64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_cancel64 \- Cancel asynchronous I/O requests
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_cancel64 (int fildes, struct aiocb64 *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function is similar to 
+.IR aio_cancel
+with the only difference
+that the argument is a reference to a variable of type 
+.IR struct aiocb64
+.
+
+When the sources are compiled with 
+.IR _FILE_OFFSET_BITS == 64
+, this
+function is available under the name 
+.IR aio_cancel
+and so
+transparently replaces the interface for small files on 32 bit
+machines.
+.SH "RETURN VALUES"
+See aio_cancel(3).
+.SH ERRORS
+See aio_cancel(3).
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_error.3 b/man/aio_error.3
new file mode 100644
index 0000000..12b82cf
--- /dev/null
+++ b/man/aio_error.3
@@ -0,0 +1,81 @@
+.TH aio_error 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_error \- Getting the Status of AIO Operations
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_error (const struct aiocb *aiocbp)"
+.fi
+.SH DESCRIPTION
+The function
+.IR aio_error
+determines the error state of the request described by the
+.IR "struct aiocb"
+variable pointed to by 
+.I aiocbp
+. 
+
+When the operation is performed truly asynchronously (as with
+.IR "aio_read"
+and 
+.IR "aio_write"
+and with 
+.IR "lio_listio"
+when the mode is 
+.IR "LIO_NOWAIT"
+), one sometimes needs to know whether a
+specific request already terminated and if so, what the result was.
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+this function is in fact 
+.IR "aio_error64"
+since the LFS interface transparently replaces the normal implementation.
+.SH "RETURN VALUES"
+If the request has not yet terminated the value returned is always
+.IR "EINPROGRESS"
+.  Once the request has terminated the value
+.IR "aio_error"
+returns is either 
+.I 0
+if the request completed successfully or it returns the value which would be stored in the
+.IR "errno"
+variable if the request would have been done using
+.IR "read"
+, 
+.IR "write"
+, or 
+.IR "fsync"
+.
+.SH ERRORS
+.TP
+.IR "ENOSYS"
+if it is not implemented.  It
+could also return 
+.TP
+.IR "EINVAL"
+if the 
+.I aiocbp
+parameter does not
+refer to an asynchronous operation whose return status is not yet known.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_error64.3 b/man/aio_error64.3
new file mode 100644
index 0000000..3333161
--- /dev/null
+++ b/man/aio_error64.3
@@ -0,0 +1,64 @@
+.TH aio_error64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_error64 \- Return errors
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_error64 (const struct aiocb64 *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function is similar to 
+.IR aio_error
+with the only difference
+that the argument is a reference to a variable of type 
+.IR "struct aiocb64".
+.PP
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+this
+function is available under the name 
+.IR aio_error
+and so
+transparently replaces the interface for small files on 32 bit
+machines.
+.SH "RETURN VALUES"
+If the request has not yet terminated the value returned is always
+.IR "EINPROGRESS"
+.  Once the request has terminated the value
+.IR "aio_error"
+returns is either 
+.I 0
+if the request completed successfully or it returns the value which would be stored in the
+.IR "errno"
+variable if the request would have been done using
+.IR "read"
+, 
+.IR "write"
+, or 
+.IR "fsync"
+.
+.SH ERRORS
+See 
+.IR aio_error(3).
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_fsync.3 b/man/aio_fsync.3
new file mode 100644
index 0000000..637f0f6
--- /dev/null
+++ b/man/aio_fsync.3
@@ -0,0 +1,139 @@
+.TH aio_fsync 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_fsync \- Synchronize a file's complete in-core state with that on disk
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_fsync (int op, struct aiocb aiocbp)"
+.fi
+.SH DESCRIPTION
+.PP
+When dealing with asynchronous operations it is sometimes necessary to
+get into a consistent state.  This would mean for AIO that one wants to
+know whether a certain request or a group of request were processed.
+This could be done by waiting for the notification sent by the system
+after the operation terminated, but this sometimes would mean wasting
+resources (mainly computation time).  Instead POSIX.1b defines two
+functions which will help with most kinds of consistency.
+.PP
+The
+.IR aio_fsync
+and 
+.IR "aio_fsync64"
+functions are only available
+if the symbol 
+.IR "_POSIX_SYNCHRONIZED_IO"
+is defined in 
+.I unistd.h
+.
+
+Calling this function forces all I/O operations operating queued at the
+time of the function call operating on the file descriptor
+.IR "aiocbp->aio_fildes"
+into the synchronized I/O completion state .  The 
+.IR "aio_fsync"
+function returns
+immediately but the notification through the method described in
+.IR "aiocbp->aio_sigevent"
+will happen only after all requests for this
+file descriptor have terminated and the file is synchronized.  This also
+means that requests for this very same file descriptor which are queued
+after the synchronization request are not affected.
+
+If 
+.IR "op"
+is 
+.IR "O_DSYNC"
+the synchronization happens as with a call
+to 
+.IR "fdatasync"
+.  Otherwise 
+.IR "op"
+should be 
+.IR "O_SYNC"
+and
+the synchronization happens as with 
+.IR "fsync"
+.
+
+As long as the synchronization has not happened, a call to
+.IR "aio_error"
+with the reference to the object pointed to by
+.IR "aiocbp"
+returns 
+.IR "EINPROGRESS"
+.  Once the synchronization is
+done 
+.IR "aio_error"
+return 
+.IR 0
+if the synchronization was not
+successful.  Otherwise the value returned is the value to which the
+.IR "fsync"
+or 
+.IR "fdatasync"
+function would have set the
+.IR "errno"
+variable.  In this case nothing can be assumed about the
+consistency for the data written to this file descriptor.
+
+.SH "RETURN VALUES"
+The return value of this function is 
+.IR 0
+if the request was
+successfully enqueued.  Otherwise the return value is 
+.IR -1
+and
+.IR "errno".
+.SH ERRORS
+.TP
+.B EAGAIN
+The request could not be enqueued due to temporary lack of resources.
+.TP
+.B EBADF
+The file descriptor 
+.IR "aiocbp->aio_fildes"
+is not valid or not open
+for writing.
+.TP
+.B EINVAL
+The implementation does not support I/O synchronization or the 
+.IR "op"
+parameter is other than 
+.IR "O_DSYNC"
+and 
+.IR "O_SYNC"
+.
+.TP
+.B ENOSYS
+This function is not implemented.
+.PP
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+ this
+function is in fact 
+.IR "aio_return64"
+since the LFS interface
+transparently replaces the normal implementation.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_fsync64.3 b/man/aio_fsync64.3
new file mode 100644
index 0000000..5dce22d
--- /dev/null
+++ b/man/aio_fsync64.3
@@ -0,0 +1,51 @@
+.TH aio_fsync64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_fsync64 \- Synchronize a file's complete in-core state with that on disk
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_fsync64 (int op, struct aiocb64 *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function is similar to 
+.IR aio_fsync
+with the only difference
+that the argument is a reference to a variable of type 
+.IR "struct aiocb64".
+
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+this
+function is available under the name 
+.IR aio_fsync
+and so
+transparently replaces the interface for small files on 32 bit
+machines.
+.SH "RETURN VALUES"
+See 
+.IR aio_fsync.
+.SH ERRORS
+See 
+.IR aio_fsync.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_init.3 b/man/aio_init.3
new file mode 100644
index 0000000..3b0ec95
--- /dev/null
+++ b/man/aio_init.3
@@ -0,0 +1,96 @@
+.TH  aio_init 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_init \-  How to optimize the AIO implementation
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "void aio_init (const struct aioinit *init)"
+.fi
+.SH DESCRIPTION
+
+The POSIX standard does not specify how the AIO functions are
+implemented.  They could be system calls, but it is also possible to
+emulate them at userlevel.
+
+At the point of this writing, the available implementation is a userlevel
+implementation which uses threads for handling the enqueued requests.
+While this implementation requires making some decisions about
+limitations, hard limitations are something which is best avoided
+in the GNU C library.  Therefore, the GNU C library provides a means
+for tuning the AIO implementation according to the individual use.
+
+.BI "struct aioinit"
+.PP
+This data type is used to pass the configuration or tunable parameters
+to the implementation.  The program has to initialize the members of
+this struct and pass it to the implementation using the 
+.IR aio_init
+function.
+.TP
+.B "int aio_threads"
+This member specifies the maximal number of threads which may be used
+at any one time.
+.TP
+.B "int aio_num"
+This number provides an estimate on the maximal number of simultaneously
+enqueued requests.
+.TP
+.B "int aio_locks"
+Unused.
+.TP
+.B "int aio_usedba"
+Unused.
+.TP
+.B "int aio_debug"
+Unused.
+.TP
+.B "int aio_numusers"
+Unused.
+.TP
+.B "int aio_reserved[2]"
+Unused.
+.PP
+This function must be called before any other AIO function.  Calling it
+is completely voluntary, as it is only meant to help the AIO
+implementation perform better.
+
+Before calling the 
+.IR aio_init
+, function the members of a variable of
+type 
+.IR "struct aioinit"
+must be initialized.  Then a reference to
+this variable is passed as the parameter to 
+.IR aio_init
+which itself
+may or may not pay attention to the hints.
+
+It is a extension which follows a proposal from the SGI implementation in
+.IR Irix 6
+.  It is not covered by POSIX.1b or Unix98.
+.SH "RETURN VALUES"
+The function has no return value.
+.SH ERRORS
+The function has no error cases defined.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_read.3 b/man/aio_read.3
new file mode 100644
index 0000000..5bcb6c8
--- /dev/null
+++ b/man/aio_read.3
@@ -0,0 +1,146 @@
+.TH aio_read 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_read \- Initiate an asynchronous read operation
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_read (struct aiocb *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function initiates an asynchronous read operation.  It
+immediately returns after the operation was enqueued or when an
+error was encountered.
+
+The first 
+.IR "aiocbp->aio_nbytes"
+bytes of the file for which
+.IR "aiocbp->aio_fildes"
+is a descriptor are written to the buffer
+starting at 
+.IR "aiocbp->aio_buf"
+.  Reading starts at the absolute
+position 
+.IR "aiocbp->aio_offset"
+in the file.
+
+If prioritized I/O is supported by the platform the
+.IR "aiocbp->aio_reqprio"
+value is used to adjust the priority before
+the request is actually enqueued.
+
+The calling process is notified about the termination of the read
+request according to the 
+.IR "aiocbp->aio_sigevent"
+value.
+
+.SH "RETURN VALUES"
+When 
+.IR "aio_read"
+returns, the return value is zero if no error
+occurred that can be found before the process is enqueued.  If such an
+early error is found, the function returns 
+.IR -1
+and sets
+.IR "errno".
+
+.PP
+If 
+.IR "aio_read"
+returns zero, the current status of the request
+can be queried using 
+.IR "aio_error"
+and 
+.IR "aio_return"
+functions.
+As long as the value returned by 
+.IR "aio_error"
+is 
+.IR "EINPROGRESS"
+the operation has not yet completed.  If 
+.IR "aio_error"
+returns zero,
+the operation successfully terminated, otherwise the value is to be
+interpreted as an error code.  If the function terminated, the result of
+the operation can be obtained using a call to 
+.IR "aio_return"
+.  The
+returned value is the same as an equivalent call to 
+.IR "read"
+would
+have returned.  
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+this
+function is in fact 
+.IR "aio_read64"
+since the LFS interface transparently
+replaces the normal implementation.
+
+.SH ERRORS
+In the case of an early error:
+.TP
+.B  EAGAIN
+The request was not enqueued due to (temporarily) exceeded resource
+limitations.
+.TP
+.B  ENOSYS
+The 
+.IR "aio_read"
+function is not implemented.
+.TP
+.B  EBADF
+The 
+.IR "aiocbp->aio_fildes"
+descriptor is not valid.  This condition
+need not be recognized before enqueueing the request and so this error
+might also be signaled asynchronously.
+.TP
+.B  EINVAL
+The 
+.IR "aiocbp->aio_offset"
+or 
+.IR "aiocbp->aio_reqpiro"
+value is
+invalid.  This condition need not be recognized before enqueueing the
+request and so this error might also be signaled asynchronously.
+
+.PP
+In the case of a normal return, possible error codes returned by 
+.IR "aio_error"
+are:
+.TP
+.B  EBADF
+The 
+.IR "aiocbp->aio_fildes"
+descriptor is not valid.
+.TP
+.B  ECANCELED
+The operation was canceled before the operation was finished
+.TP
+.B  EINVAL
+The 
+.IR "aiocbp->aio_offset"
+value is invalid.
+.PP
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_read64.3 b/man/aio_read64.3
new file mode 100644
index 0000000..8e407a5
--- /dev/null
+++ b/man/aio_read64.3
@@ -0,0 +1,60 @@
+.TH aio_read64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_read64 \- Initiate an asynchronous read operation
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_read64 (struct aiocb *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function is similar to the 
+.IR "aio_read"
+function.  The only
+difference is that on 
+.IR "32 bit"
+machines, the file descriptor should
+be opened in the large file mode.  Internally, 
+.IR "aio_read64"
+uses
+functionality equivalent to 
+.IR "lseek64"
+to position the file descriptor correctly for the reading,
+as opposed to 
+.IR "lseek"
+functionality used in 
+.IR "aio_read".
+
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+, this
+function is available under the name 
+.IR "aio_read"
+and so transparently
+replaces the interface for small files on 32 bit machines.
+.SH "RETURN VALUES"
+See
+.IR aio_read.
+.SH ERRORS
+See
+.IR aio_read.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_return.3 b/man/aio_return.3
new file mode 100644
index 0000000..1e3335f
--- /dev/null
+++ b/man/aio_return.3
@@ -0,0 +1,71 @@
+.TH aio_return 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_return \- Retrieve status of asynchronous I/O operation
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "ssize_t aio_return (const struct aiocb *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function can be used to retrieve the return status of the operation
+carried out by the request described in the variable pointed to by
+.IR aiocbp
+.  As long as the error status of this request as returned
+by 
+.IR aio_error
+is 
+.IR EINPROGRESS
+the return of this function is
+undefined.
+
+Once the request is finished this function can be used exactly once to
+retrieve the return value.  Following calls might lead to undefined
+behavior.  
+When the sources are compiled with 
+.B "_FILE_OFFSET_BITS == 64"
+this function is in fact 
+.IR aio_return64
+since the LFS interface
+transparently replaces the normal implementation.
+.SH "RETURN VALUES"
+The return value itself is the value which would have been
+returned by the 
+.IR read
+,
+.IR write
+, or 
+.IR fsync
+call.
+.SH ERRORS
+The function can return 
+.TP
+.B ENOSYS
+if it is not implemented.
+.TP
+.B EINVAL 
+if the 
+.IR aiocbp 
+parameter does not
+refer to an asynchronous operation whose return status is not yet known.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_return64.3 b/man/aio_return64.3
new file mode 100644
index 0000000..7e78362
--- /dev/null
+++ b/man/aio_return64.3
@@ -0,0 +1,51 @@
+.TH aio_read64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_read64 \- Retrieve status of asynchronous I/O operation
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_return64 (const struct aiocb64 *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function is similar to 
+.IR "aio_return"
+with the only difference
+that the argument is a reference to a variable of type 
+.IR "struct aiocb64".
+
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+this
+function is available under the name 
+.IR "aio_return"
+and so
+transparently replaces the interface for small files on 32 bit
+machines.
+.SH "RETURN VALUES"
+See 
+.IR aio_return.
+.SH ERRORS
+See
+.IR aio_return.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_suspend.3 b/man/aio_suspend.3
new file mode 100644
index 0000000..cae1b65
--- /dev/null
+++ b/man/aio_suspend.3
@@ -0,0 +1,123 @@
+.TH aio_suspend 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_suspend \- Wait until one or more requests of a specific set terminates.
+.SH SYNOPSYS
+.nf
+.B "#include <errno.h>"
+.sp
+.br 
+.B "#include <aio.h>"
+.sp
+.br
+.BI "int aio_suspend (const struct aiocb *const list[], int nent, const struct timespec *timeout)"
+.fi
+.SH DESCRIPTION
+Another method of synchronization is to wait until one or more requests of a
+specific set terminated.  This could be achieved by the 
+.IR "aio_*"
+functions to notify the initiating process about the termination but in
+some situations this is not the ideal solution.  In a program which
+constantly updates clients somehow connected to the server it is not
+always the best solution to go round robin since some connections might
+be slow.  On the other hand letting the 
+.IR "aio_*"
+function notify the
+caller might also be not the best solution since whenever the process
+works on preparing data for on client it makes no sense to be
+interrupted by a notification since the new client will not be handled
+before the current client is served.  For situations like this
+.IR "aio_suspend"
+should be used.
+.PP
+When calling this function, the calling thread is suspended until at
+least one of the requests pointed to by the 
+.IR "nent"
+elements of the
+array 
+.IR "list"
+has completed.  If any of the requests has already
+completed at the time 
+.IR "aio_suspend"
+is called, the function returns
+immediately.  Whether a request has terminated or not is determined by
+comparing the error status of the request with 
+.IR "EINPROGRESS"
+.  If
+an element of 
+.IR "list"
+is 
+.IR "NULL"
+, the entry is simply ignored.
+
+If no request has finished, the calling process is suspended.  If
+.IR "timeout"
+is 
+.IR "NULL"
+, the process is not woken until a request
+has finished.  If 
+.IR "timeout"
+is not 
+.IR "NULL"
+, the process remains
+suspended at least as long as specified in 
+.IR "timeout"
+.  In this case,
+.IR "aio_suspend"
+returns with an error.
+.PP
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+this
+function is in fact 
+.IR "aio_suspend64"
+since the LFS interface
+transparently replaces the normal implementation.
+.SH "RETURN VALUES"
+The return value of the function is 
+.IR 0
+if one or more requests
+from the 
+.IR "list"
+have terminated.  Otherwise the function returns
+.IR -1
+and 
+.IR "errno"
+is set.
+.SH ERRORS
+.TP
+.B EAGAIN
+None of the requests from the 
+.IR "list"
+completed in the time specified
+by 
+.IR "timeout"
+.
+.TP
+.B EINTR
+A signal interrupted the 
+.IR "aio_suspend"
+function.  This signal might
+also be sent by the AIO implementation while signalling the termination
+of one of the requests.
+.TP
+.B ENOSYS
+The 
+.IR "aio_suspend"
+function is not implemented.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_suspend64.3 b/man/aio_suspend64.3
new file mode 100644
index 0000000..2f289ec
--- /dev/null
+++ b/man/aio_suspend64.3
@@ -0,0 +1,51 @@
+.TH aio_suspend64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_suspend64 \- Wait until one or more requests of a specific set terminates
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_suspend64 (const struct aiocb64 *const list[], int nent, const struct timespec *timeout)"
+.fi
+.SH DESCRIPTION
+This function is similar to 
+.IR "aio_suspend"
+with the only difference
+that the argument is a reference to a variable of type 
+.IR "struct aiocb64".
+
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+this
+function is available under the name 
+.IR "aio_suspend"
+and so
+transparently replaces the interface for small files on 32 bit
+machines.
+.SH "RETURN VALUES"
+See
+.IR aio_suspend.
+.SH ERRORS
+See
+.IR aio_suspend.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_write(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_write.3 b/man/aio_write.3
new file mode 100644
index 0000000..7c0cfd0
--- /dev/null
+++ b/man/aio_write.3
@@ -0,0 +1,176 @@
+.TH aio_write 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_write  \-  Initiate an asynchronous write operation
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI "int aio_write (struct aiocb * aiocbp);"
+.fi
+.SH DESCRIPTION
+This function initiates an asynchronous write operation.  The function
+call immediately returns after the operation was enqueued or if before
+this happens an error was encountered.
+
+The first 
+.IR "aiocbp->aio_nbytes"
+bytes from the buffer starting at
+.IR "aiocbp->aio_buf"
+are written to the file for which
+.IR "aiocbp->aio_fildes"
+is an descriptor, starting at the absolute
+position 
+.IR "aiocbp->aio_offset"
+in the file.
+
+If prioritized I/O is supported by the platform, the
+.IR "aiocbp->aio_reqprio "
+value is used to adjust the priority before
+the request is actually enqueued.
+
+The calling process is notified about the termination of the read
+request according to the 
+.IR "aiocbp->aio_sigevent"
+value.
+
+When 
+.IR "aio_write"
+returns, the return value is zero if no error
+occurred that can be found before the process is enqueued.  If such an
+early error is found the function returns 
+.IR -1
+and sets
+.IR "errno"
+to one of the following values.
+
+.TP
+.B EAGAIN
+The request was not enqueued due to (temporarily) exceeded resource
+limitations.
+.TP
+.B ENOSYS
+The 
+.IR "aio_write"
+function is not implemented.
+.TP
+.B EBADF
+The 
+.IR "aiocbp->aio_fildes"
+descriptor is not valid.  This condition
+may not be recognized before enqueueing the request, and so this error
+might also be signaled asynchronously.
+.TP
+.B EINVAL
+The 
+.IR "aiocbp->aio_offset"
+or
+.IR "aiocbp->aio_reqprio"
+value is
+invalid.  This condition may not be recognized before enqueueing the
+request and so this error might also be signaled asynchronously.
+.PP
+
+In the case 
+.IR "aio_write"
+returns zero, the current status of the
+request can be queried using 
+.IR "aio_error"
+and 
+.IR "aio_return"
+functions.  As long as the value returned by 
+.IR "aio_error"
+is
+.IR "EINPROGRESS"
+the operation has not yet completed.  If
+.IR "aio_error"
+returns zero, the operation successfully terminated,
+otherwise the value is to be interpreted as an error code.  If the
+function terminated, the result of the operation can be get using a call
+to 
+.IR "aio_return"
+.  The returned value is the same as an equivalent
+call to 
+.IR "read"
+would have returned.  Possible error codes returned
+by 
+.IR "aio_error"
+are:
+
+.TP
+.B EBADF
+The 
+.IR "aiocbp->aio_fildes"
+descriptor is not valid.
+.TP
+.B ECANCELED
+The operation was canceled before the operation was finished.
+.TP
+.B EINVAL
+The 
+.IR "aiocbp->aio_offset"
+value is invalid.
+.PP
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+, this
+function is in fact 
+.IR "aio_write64"
+since the LFS interface transparently
+replaces the normal implementation.
+.SH "RETURN VALUES"
+When 
+.IR "aio_write"
+returns, the return value is zero if no error
+occurred that can be found before the process is enqueued.  If such an
+early error is found the function returns 
+.IR -1
+and sets
+.IR "errno"
+to one of the following values.
+.SH ERRORS
+.TP
+.B EAGAIN
+The request was not enqueued due to (temporarily) exceeded resource
+limitations.
+.TP
+.B ENOSYS
+The 
+.IR "aio_write"
+function is not implemented.
+.TP
+.B EBADF
+The 
+.IR "aiocbp->aio_fildes"
+descriptor is not valid.  This condition
+may not be recognized before enqueueing the request, and so this error
+might also be signaled asynchronously.
+.TP
+.B EINVAL
+The 
+.IR "aiocbp->aio_offset"
+or
+.IR "aiocbp->aio_reqprio"
+value is
+invalid.  This condition may not be recognized before enqueueing the
+request and so this error might also be signaled asynchronously.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write64(3),
+.BR errno(3),
diff --git a/man/aio_write64.3 b/man/aio_write64.3
new file mode 100644
index 0000000..1080903
--- /dev/null
+++ b/man/aio_write64.3
@@ -0,0 +1,61 @@
+.TH aio_write64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+aio_write64 \- Initiate an asynchronous write operation
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <aio.h>
+.sp
+.br
+.BI  "int aio_write64 (struct aiocb *aiocbp)"
+.fi
+.SH DESCRIPTION
+This function is similar to the 
+.IR "aio_write"
+function.  The only
+difference is that on 
+.IR "32 bit"
+machines the file descriptor should
+be opened in the large file mode.  Internally 
+.IR "aio_write64"
+uses
+functionality equivalent to 
+.IR "lseek64"
+to position the file descriptor correctly for the writing,
+as opposed to 
+.IR "lseek"
+functionality used in 
+.IR "aio_write".
+
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+, this
+function is available under the name 
+.IR "aio_write"
+and so transparently
+replaces the interface for small files on 32 bit machines.
+.SH "RETURN VALUES"
+See
+.IR aio_write.
+.SH ERRORS
+See
+.IR aio_write.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR errno(3),
diff --git a/man/io.3 b/man/io.3
new file mode 100644
index 0000000..d910a68
--- /dev/null
+++ b/man/io.3
@@ -0,0 +1,351 @@
+.TH io 3 2002-09-12 "Linux 2.4" Linux IO"
+.SH NAME
+io \- Asynchronous IO
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br 
+.B #include <libio.h>
+.sp
+.fi
+.SH DESCRIPTION
+The libaio library defines a new set of I/O operations which can
+significantly reduce the time an application spends waiting at I/O.  The
+new functions allow a program to initiate one or more I/O operations and
+then immediately resume normal work while the I/O operations are
+executed in parallel.  
+
+These functions are part of the library with realtime functions named
+.IR "libaio"
+.  They are not actually part of the 
+.IR "libc" 
+binary.
+The implementation of these functions can be done using support in the
+kernel.
+
+All IO operations operate on files which were opened previously.  There
+might be arbitrarily many operations running for one file.  The
+asynchronous I/O operations are controlled using a data structure named
+.IR "struct iocb"
+It is defined in
+.IR "libio.h"
+as follows.
+
+.nf
+
+typedef struct io_context *io_context_t;
+
+typedef enum io_iocb_cmd {
+        IO_CMD_PREAD = 0,
+        IO_CMD_PWRITE = 1,
+
+        IO_CMD_FSYNC = 2,
+        IO_CMD_FDSYNC = 3,
+
+        IO_CMD_POLL = 5,
+        IO_CMD_NOOP = 6,
+} io_iocb_cmd_t;
+
+struct io_iocb_common {
+        void            *buf;
+        unsigned        __pad1;
+        long            nbytes;
+        unsigned        __pad2;
+        long long       offset;
+        long long       __pad3, __pad4;
+};      /* result code is the amount read or -'ve errno */
+
+
+struct iocb {
+        void            *data;
+        unsigned        key;
+        short           aio_lio_opcode;
+        short           aio_reqprio;
+        int             aio_fildes;
+        union {
+                struct io_iocb_common           c;
+                struct io_iocb_vector           v;
+                struct io_iocb_poll             poll;
+                struct io_iocb_sockaddr saddr;
+        } u;
+}; 
+
+
+.fi
+.TP
+.IR "int aio_fildes"
+This element specifies the file descriptor to be used for the
+operation.  It must be a legal descriptor, otherwise the operation will
+fail.
+
+The device on which the file is opened must allow the seek operation.
+I.e., it is not possible to use any of the IO operations on devices
+like terminals where an 
+.IR "lseek"
+call would lead to an error.
+.TP
+.IR "long u.c.offset"
+This element specifies the offset in the file at which the operation (input
+or output) is performed.  Since the operations are carried out in arbitrary
+order and more than one operation for one file descriptor can be
+started, one cannot expect a current read/write position of the file
+descriptor.
+.TP
+.IR "void *buf"
+This is a pointer to the buffer with the data to be written or the place
+where the read data is stored.
+.TP
+.IR "long u.c.nbytes"
+This element specifies the length of the buffer pointed to by 
+.IR "io_buf"
+.
+.TP
+.IR "int aio_reqprio"
+Is not currently used.
+.TP
+.B "IO_CMD_PREAD"
+Start a read operation.  Read from the file at position
+.IR "u.c.offset"
+and store the next 
+.IR "u.c.nbytes"
+bytes in the
+buffer pointed to by 
+.IR "buf"
+.
+.TP
+.B "IO_CMD_PWRITE"
+Start a write operation.  Write 
+.IR "u.c.nbytes" 
+bytes starting at
+.IR "buf"
+into the file starting at position 
+.IR "u.c.offset"
+.
+.TP
+.B "IO_CMD_NOP"
+Do nothing for this control block.  This value is useful sometimes when
+an array of 
+.IR "struct iocb"
+values contains holes, i.e., some of the
+values must not be handled although the whole array is presented to the
+.IR "io_submit"
+function.
+.TP 
+.B "IO_CMD_FSYNC"
+.TP
+.B "IO_CMD_POLL"
+This is experimental.
+.SH EXAMPLE
+.nf
+/*
+ * Simplistic version of copy command using async i/o
+ *
+ * From:	Stephen Hemminger <shemminger@osdl.org>
+ * Copy file by using a async I/O state machine.
+ * 1. Start read request
+ * 2. When read completes turn it into a write request
+ * 3. When write completes decrement counter and free resources
+ *
+ *
+ * Usage: aiocp file(s) desination
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include <libaio.h>
+
+#define AIO_BLKSIZE	(64*1024)
+#define AIO_MAXIO	32
+
+static int busy = 0;		// # of I/O's in flight
+static int tocopy = 0;		// # of blocks left to copy
+static int dstfd = -1;		// destination file descriptor
+static const char *dstname = NULL;
+static const char *srcname = NULL;
+
+
+/* Fatal error handler */
+static void io_error(const char *func, int rc)
+{
+    if (rc == -ENOSYS)
+	fprintf(stderr, "AIO not in this kernel\n");
+    else if (rc < 0 && -rc < sys_nerr)
+	fprintf(stderr, "%s: %s\n", func, sys_errlist[-rc]);
+    else
+	fprintf(stderr, "%s: error %d\n", func, rc);
+
+    if (dstfd > 0)
+	close(dstfd);
+    if (dstname)
+	unlink(dstname);
+    exit(1);
+}
+
+/*
+ * Write complete callback.
+ * Adjust counts and free resources
+ */
+static void wr_done(io_context_t ctx, struct iocb *iocb, long res, long res2)
+{
+    if (res2 != 0) {
+	io_error("aio write", res2);
+    }
+    if (res != iocb->u.c.nbytes) {
+	fprintf(stderr, "write missed bytes expect %d got %d\n", iocb->u.c.nbytes, res2);
+	exit(1);
+    }
+    --tocopy;
+    --busy;
+    free(iocb->u.c.buf);
+
+    memset(iocb, 0xff, sizeof(iocb));	// paranoia
+    free(iocb);
+    write(2, "w", 1);
+}
+
+/*
+ * Read complete callback.
+ * Change read iocb into a write iocb and start it.
+ */
+static void rd_done(io_context_t ctx, struct iocb *iocb, long res, long res2)
+{
+    /* library needs accessors to look at iocb? */
+    int iosize = iocb->u.c.nbytes;
+    char *buf = iocb->u.c.buf;
+    off_t offset = iocb->u.c.offset;
+
+    if (res2 != 0)
+	io_error("aio read", res2);
+    if (res != iosize) {
+	fprintf(stderr, "read missing bytes expect %d got %d\n", iocb->u.c.nbytes, res);
+	exit(1);
+    }
+
+
+    /* turn read into write */
+    io_prep_pwrite(iocb, dstfd, buf, iosize, offset);
+    io_set_callback(iocb, wr_done);
+    if (1 != (res = io_submit(ctx, 1, &iocb)))
+	io_error("io_submit write", res);
+    write(2, "r", 1);
+}
+
+
+int main(int argc, char *const *argv)
+{
+    int srcfd;
+    struct stat st;
+    off_t length = 0, offset = 0;
+    io_context_t myctx;
+
+    if (argc != 3 || argv[1][0] == '-') {
+	fprintf(stderr, "Usage: aiocp SOURCE DEST");
+	exit(1);
+    }
+    if ((srcfd = open(srcname = argv[1], O_RDONLY)) < 0) {
+	perror(srcname);
+	exit(1);
+    }
+    if (fstat(srcfd, &st) < 0) {
+	perror("fstat");
+	exit(1);
+    }
+    length = st.st_size;
+
+    if ((dstfd = open(dstname = argv[2], O_WRONLY | O_CREAT, 0666)) < 0) {
+	close(srcfd);
+	perror(dstname);
+	exit(1);
+    }
+
+    /* initialize state machine */
+    memset(&myctx, 0, sizeof(myctx));
+    io_queue_init(AIO_MAXIO, &myctx);
+    tocopy = howmany(length, AIO_BLKSIZE);
+
+    while (tocopy > 0) {
+	int i, rc;
+	/* Submit as many reads as once as possible upto AIO_MAXIO */
+	int n = MIN(MIN(AIO_MAXIO - busy, AIO_MAXIO / 2),
+		    howmany(length - offset, AIO_BLKSIZE));
+	if (n > 0) {
+	    struct iocb *ioq[n];
+
+	    for (i = 0; i < n; i++) {
+		struct iocb *io = (struct iocb *) malloc(sizeof(struct iocb));
+		int iosize = MIN(length - offset, AIO_BLKSIZE);
+		char *buf = (char *) malloc(iosize);
+
+		if (NULL == buf || NULL == io) {
+		    fprintf(stderr, "out of memory\n");
+		    exit(1);
+		}
+
+		io_prep_pread(io, srcfd, buf, iosize, offset);
+		io_set_callback(io, rd_done);
+		ioq[i] = io;
+		offset += iosize;
+	    }
+
+	    rc = io_submit(myctx, n, ioq);
+	    if (rc < 0)
+		io_error("io_submit", rc);
+
+	    busy += n;
+	}
+
+	// Handle IO's that have completed
+	rc = io_queue_run(myctx);
+	if (rc < 0)
+	    io_error("io_queue_run", rc);
+
+	// if we have maximum number of i/o's in flight
+	// then wait for one to complete
+	if (busy == AIO_MAXIO) {
+	    rc = io_queue_wait(myctx, NULL);
+	    if (rc < 0)
+		io_error("io_queue_wait", rc);
+	}
+
+    }
+
+    close(srcfd);
+    close(dstfd);
+    exit(0);
+}
+
+/* 
+ * Results look like:
+ * [alanm@toolbox ~/MOT3]$ ../taio kernel-source-2.4.8-0.4g.ppc.rpm abc
+ * rrrrrrrrrrrrrrrwwwrwrrwwrrwrwwrrwrwrwwrrwrwrrrrwwrwwwrrwrrrwwwwwwwwwwwwwwwww
+ * rrrrrrrrrrrrrrwwwrrwrwrwrwrrwwwwwwwwwwwwwwrrrrrrrrrrrrrrrrrrwwwwrwrwwrwrwrwr
+ * wrrrrrrrwwwwwwwwwwwwwrrrwrrrwrrwrwwwwwwwwwwrrrrwwrwrrrrrrrrrrrwwwwwwwwwwwrww
+ * wwwrrrrrrrrwwrrrwwrwrwrwwwrrrrrrrwwwrrwwwrrwrwwwwwwwwrrrrrrrwwwrrrrrrrwwwwww
+ * wwwwwwwrwrrrrrrrrwrrwrrwrrwrwrrrwrrrwrrrwrwwwwwwwwwwwwwwwwwwrrrwwwrrrrrrrrrr
+ * rrwrrrrrrwrrwwwwwwwwwwwwwwwwrwwwrrwrwwrrrrrrrrrrrrrrrrrrrwwwwwwwwwwwwwwwwwww
+ * rrrrrwrrwrwrwrrwrrrwwwwwwwwrrrrwrrrwrwwrwrrrwrrwrrrrwwwwwwwrwrwwwwrwwrrrwrrr
+ * rrrwwwwwwwrrrrwwrrrrrrrrrrrrwrwrrrrwwwwwwwwwwwwwwrwrrrrwwwwrwrrrrwrwwwrrrwww
+ * rwwrrrrrrrwrrrrrrrrrrrrwwwwrrrwwwrwrrwwwwwwwwwwwwwwwwwwwwwrrrrrrrwwwwwwwrw
+ */
+.fi
+.SH "SEE ALSO"
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_cancel.1 b/man/io_cancel.1
new file mode 100644
index 0000000..16e898a
--- /dev/null
+++ b/man/io_cancel.1
@@ -0,0 +1,21 @@
+.\"/* sys_io_cancel:
+.\" *      Attempts to cancel an iocb previously passed to io_submit.  If
+.\" *      the operation is successfully cancelled, the resulting event is
+.\" *      copied into the memory pointed to by result without being placed
+.\" *      into the completion queue and 0 is returned.  May fail with
+.\" *      -EFAULT if any of the data structures pointed to are invalid.
+.\" *      May fail with -EINVAL if aio_context specified by ctx_id is
+.\" *      invalid.  May fail with -EAGAIN if the iocb specified was not
+.\" *      cancelled.  Will fail with -ENOSYS if not implemented.
+.\" */
+.\"
+.TH io_cancel 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_cancel \- cancel io requests
+.SH SYNOPSIS
+.B #include <errno.h>
+.br
+.B #include <libaio.h>
+.LP
+.BI "int io_submit(io_context_t " ctx ", struct iocb *" iocb ", struct io_event *" result ");"
+
diff --git a/man/io_cancel.3 b/man/io_cancel.3
new file mode 100644
index 0000000..9a16084
--- /dev/null
+++ b/man/io_cancel.3
@@ -0,0 +1,65 @@
+.TH io_cancel 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_cancel \- Cancel io requests
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.sp
+.br
+.B #include <libaio.h>
+.sp
+.br
+.BI "int io_cancel(io_context_t ctx, struct iocb *iocb)"
+.br
+.sp
+struct iocb {
+	void		*data; /* Return in the io completion event */
+	unsigned	key;	/* For use in identifying io requests */
+	short		aio_lio_opcode;
+	short		aio_reqprio; 	/* Not used */
+	int		aio_fildes;
+};
+.fi
+.SH DESCRIPTION
+Attempts to cancel an iocb previously passed to io_submit.  If
+the operation is successfully cancelled, the resulting event is
+copied into the memory pointed to by result without being placed
+into the completion queue.
+.PP
+When one or more requests are asynchronously processed, it might be
+useful in some situations to cancel a selected operation, e.g., if it
+becomes obvious that the written data is no longer accurate and would
+have to be overwritten soon.  As an example, assume an application, which
+writes data in files in a situation where new incoming data would have
+to be written in a file which will be updated by an enqueued request.
+.SH "RETURN VALUES"
+0 is returned on success , otherwise returns Errno.
+.SH ERRORS
+.TP
+.B EFAULT 
+If any of the data structures pointed to are invalid.
+.TP
+.B EINVAL 
+If aio_context specified by ctx_id is
+invalid.  
+.TP
+.B EAGAIN
+If the iocb specified was not
+cancelled.  
+.TP
+.B ENOSYS 
+if not implemented.
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_destroy.1 b/man/io_destroy.1
new file mode 100644
index 0000000..177683b
--- /dev/null
+++ b/man/io_destroy.1
@@ -0,0 +1,17 @@
+.\"/* sys_io_destroy:
+.\" *      Destroy the aio_context specified.  May cancel any outstanding 
+.\" *      AIOs and block on completion.  Will fail with -ENOSYS if not
+.\" *      implemented.  May fail with -EFAULT if the context pointed to
+.\" *      is invalid.
+.\" */
+.\" libaio provides this as io_queue_release.
+.TH io_destroy 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_destroy \- destroy an io context
+.SH SYNOPSIS
+.B #include <errno.h>
+.br
+.B #include <libaio.h>
+.LP
+.BI "int io_destroy(io_context_t " ctx ");"
+
diff --git a/man/io_fsync.3 b/man/io_fsync.3
new file mode 100644
index 0000000..53eb63d
--- /dev/null
+++ b/man/io_fsync.3
@@ -0,0 +1,82 @@
+./" static inline int io_fsync(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd)
+./" {
+./" 	io_prep_fsync(iocb, fd);
+./" 	io_set_callback(iocb, cb);
+./" 	return io_submit(ctx, 1, &iocb);
+./" }
+.TH io_fsync 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+io_fsync \- Synchronize a file's complete in-core state with that on disk
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br
+.B #include <libaio.h>
+.sp
+.br
+.BI "int io_fsync(io_context_t ctx, struct iocb *iocb, io_callback_t cb, int fd)"
+.sp
+struct iocb {
+	void		*data;
+	unsigned	key;
+	short		aio_lio_opcode;
+	short		aio_reqprio;
+	int		aio_fildes;
+};
+.sp
+typedef void (*io_callback_t)(io_context_t ctx, struct iocb *iocb, long res, long res2);
+.sp
+.fi
+.SH DESCRIPTION
+When dealing with asynchronous operations it is sometimes necessary to
+get into a consistent state.  This would mean for AIO that one wants to
+know whether a certain request or a group of request were processed.
+This could be done by waiting for the notification sent by the system
+after the operation terminated, but this sometimes would mean wasting
+resources (mainly computation time). 
+.PP
+Calling this function forces all I/O operations operating queued at the
+time of the function call operating on the file descriptor
+.IR "iocb->io_fildes"
+into the synchronized I/O completion state .  The 
+.IR "io_fsync"
+function returns
+immediately but the notification through the method described in
+.IR "io_callback"
+will happen only after all requests for this
+file descriptor have terminated and the file is synchronized.  This also
+means that requests for this very same file descriptor which are queued
+after the synchronization request are not affected.
+.SH "RETURN VALUES"
+Returns 0, otherwise returns errno.
+.SH ERRORS
+.TP
+.B EFAULT
+.I iocbs
+referenced data outside of the program's accessible address space.
+.TP
+.B EINVAL
+.I ctx
+refers to an unitialized aio context, the iocb pointed to by 
+.I iocbs
+contains an improperly initialized iocb, 
+.TP
+.B EBADF
+The iocb contains a file descriptor that does not exist.
+.TP
+.B EINVAL
+The file specified in the iocb does not support the given io operation.
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_getevents(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_getevents.1 b/man/io_getevents.1
new file mode 100644
index 0000000..27730b9
--- /dev/null
+++ b/man/io_getevents.1
@@ -0,0 +1,29 @@
+./"/* io_getevents:
+./" *      Attempts to read at least min_nr events and up to nr events from
+./" *      the completion queue for the aio_context specified by ctx_id.  May
+./" *      fail with -EINVAL if ctx_id is invalid, if min_nr is out of range,
+./" *      if nr is out of range, if when is out of range.  May fail with
+./" *      -EFAULT if any of the memory specified to is invalid.  May return
+./" *      0 or < min_nr if no events are available and the timeout specified
+./" *      by when has elapsed, where when == NULL specifies an infinite
+./" *      timeout.  Note that the timeout pointed to by when is relative and
+./" *      will be updated if not NULL and the operation blocks.  Will fail
+./" *      with -ENOSYS if not implemented.
+./" */
+./"asmlinkage long sys_io_getevents(io_context_t ctx_id,
+./"                                 long min_nr,
+./"                                 long nr,
+./"                                 struct io_event *events,
+./"                                 struct timespec *timeout)
+./"
+.TH io_getevents 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_getevents \- read resulting events from io requests
+.SH SYNOPSIS
+.B #include <errno.h>
+.br
+.B #include <libaio.h>
+.sp
+.BI "int io_getevents(io_context_t " ctx ", long " min_nr ", long " nr ", struct io_events *" events "[], struct timespec *" timeout ");"
+
+
diff --git a/man/io_getevents.3 b/man/io_getevents.3
new file mode 100644
index 0000000..8e9ddc8
--- /dev/null
+++ b/man/io_getevents.3
@@ -0,0 +1,79 @@
+./"/* io_getevents:
+./" *      Attempts to read at least min_nr events and up to nr events from
+./" *      the completion queue for the aio_context specified by ctx_id.  May
+./" *      fail with -EINVAL if ctx_id is invalid, if min_nr is out of range,
+./" *      if nr is out of range, if when is out of range.  May fail with
+./" *      -EFAULT if any of the memory specified to is invalid.  May return
+./" *      0 or < min_nr if no events are available and the timeout specified
+./" *      by when has elapsed, where when == NULL specifies an infinite
+./" *      timeout.  Note that the timeout pointed to by when is relative and
+./" *      will be updated if not NULL and the operation blocks.  Will fail
+./" *      with -ENOSYS if not implemented.
+./" */
+./"asmlinkage long sys_io_getevents(io_context_t ctx_id,
+./"                                 long min_nr,
+./"                                 long nr,
+./"                                 struct io_event *events,
+./"                                 struct timespec *timeout)
+./"
+.TH io_getevents 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_getevents \- Read resulting events from io requests
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.sp
+.br
+.B #include <libaio.h>
+.br
+.sp
+struct iocb {
+	void		*data;
+	unsigned	key;
+	short		aio_lio_opcode;
+	short		aio_reqprio;
+	int		aio_fildes;
+};
+.sp
+struct io_event {
+        unsigned        PADDED(data, __pad1);
+        unsigned        PADDED(obj,  __pad2);
+        unsigned        PADDED(res,  __pad3);
+        unsigned        PADDED(res2, __pad4);
+};
+.sp
+.BI "int io_getevents(io_context_t " ctx ",  long " nr ", struct io_event *" events "[], struct timespec *" timeout ");"
+
+.fi
+.SH DESCRIPTION
+Attempts to read  up to nr events from
+the completion queue for the aio_context specified by ctx.  
+.SH "RETURN VALUES"
+May return
+0 if no events are available and the timeout specified
+by when has elapsed, where when == NULL specifies an infinite
+timeout.  Note that the timeout pointed to by when is relative and
+will be updated if not NULL and the operation blocks.  Will fail
+with ENOSYS if not implemented.
+.SH ERRORS
+.TP
+.B EINVAL 
+if ctx_id is invalid, if min_nr is out of range,
+if nr is out of range, if when is out of range.  
+.TP
+.B EFAULT 
+if any of the memory specified to is invalid.  
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_prep_fsync.3 b/man/io_prep_fsync.3
new file mode 100644
index 0000000..4cf935a
--- /dev/null
+++ b/man/io_prep_fsync.3
@@ -0,0 +1,89 @@
+./" static inline void io_prep_fsync(struct iocb *iocb, int fd)
+./" {
+./" 	memset(iocb, 0, sizeof(*iocb));
+./" 	iocb->aio_fildes = fd;
+./" 	iocb->aio_lio_opcode = IO_CMD_FSYNC;
+./" 	iocb->aio_reqprio = 0;
+./" }
+.TH io_prep_fsync 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+io_prep_fsync \- Synchronize a file's complete in-core state with that on disk
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.br
+.sp
+.B #include <libaio.h>
+.br
+.sp
+.BI "static inline void io_prep_fsync(struct iocb *iocb, int fd)"
+.sp
+struct iocb {
+	void		*data;
+	unsigned	key;
+	short		aio_lio_opcode;
+	short		aio_reqprio;
+	int		aio_fildes;
+};
+.sp
+.fi
+.SH DESCRIPTION
+This is an inline convenience function for setting up an iocbv for a FSYNC request.
+.br
+The file for which
+.TP 
+.IR "iocb->aio_fildes = fd" 
+is a descriptor is set up with
+the command
+.TP 
+.IR "iocb->aio_lio_opcode = IO_CMD_FSYNC:
+.
+.PP
+The io_prep_fsync() function shall set up an IO_CMD_FSYNC operation
+to asynchronously force all I/O
+operations associated with the file indicated by the file
+descriptor aio_fildes member of the iocb structure referenced by
+the iocb argument and queued at the time of the call to
+io_submit() to the synchronized I/O completion state. The function
+call shall return when the synchronization request has been
+initiated or queued to the file or device (even when the data
+cannot be synchronized immediately).
+
+All currently queued I/O operations shall be completed as if by a call
+to fsync(); that is, as defined for synchronized I/O file
+integrity completion. If the
+operation queued by io_prep_fsync() fails, then, as for fsync(),
+outstanding I/O operations are not guaranteed to have
+been completed.
+
+If io_prep_fsync() succeeds, then it is only the I/O that was queued
+at the time of the call to io_submit() that is guaranteed to be
+forced to the relevant completion state. The completion of
+subsequent I/O on the file descriptor is not guaranteed to be
+completed in a synchronized fashion.
+.PP
+This function returns immediately . To schedule the operation, the
+function
+.IR io_submit
+must be called.
+.PP
+Simultaneous asynchronous operations using the same iocb produce
+undefined results.
+.SH "RETURN VALUES"
+None
+.SH ERRORS
+None
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_prep_pread.3 b/man/io_prep_pread.3
new file mode 100644
index 0000000..5938aec
--- /dev/null
+++ b/man/io_prep_pread.3
@@ -0,0 +1,79 @@
+./" static inline void io_prep_pread(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+./" {
+./" 	memset(iocb, 0, sizeof(*iocb));
+./" 	iocb->aio_fildes = fd;
+./" 	iocb->aio_lio_opcode = IO_CMD_PREAD;
+./" 	iocb->aio_reqprio = 0;
+./" 	iocb->u.c.buf = buf;
+./" 	iocb->u.c.nbytes = count;
+./" 	iocb->u.c.offset = offset;
+./" }
+.TH io_prep_pread 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+io_prep_pread \- Set up asynchronous read
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.sp
+.br
+.B #include <libaio.h>
+.br
+.sp
+.BI "inline void io_prep_pread(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+"
+.sp
+struct iocb {
+	void		*data;
+	unsigned	key;
+	short		aio_lio_opcode;
+	short		aio_reqprio;
+	int		aio_fildes;
+};
+.fi
+.SH DESCRIPTION
+.IR io_prep_pread 
+is an inline convenience function designed to facilitate the initialization of
+the iocb for an asynchronous read operation.
+
+The first
+.TP
+.IR "iocb->u.c.nbytes = count"
+bytes of the file for which
+.TP
+.IR "iocb->aio_fildes = fd"
+is a descriptor are written to the buffer
+starting at
+.TP
+.IR "iocb->u.c.buf = buf"
+.
+.br
+Reading starts at the absolute position
+.TP
+.IR "ioc->u.c.offset = offset"
+in the file.
+.PP
+This function returns immediately . To schedule the operation, the
+function 
+.IR io_submit
+must be called.
+.PP
+Simultaneous asynchronous operations using the same iocb produce
+undefined results.
+.SH "RETURN VALUES"
+None
+.SH ERRORS
+None
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_prep_pwrite.3 b/man/io_prep_pwrite.3
new file mode 100644
index 0000000..68b3500
--- /dev/null
+++ b/man/io_prep_pwrite.3
@@ -0,0 +1,77 @@
+./" static inline void io_prep_pwrite(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+./" {
+./" 	memset(iocb, 0, sizeof(*iocb));
+./" 	iocb->aio_fildes = fd;
+./" 	iocb->aio_lio_opcode = IO_CMD_PWRITE;
+./" 	iocb->aio_reqprio = 0;
+./" 	iocb->u.c.buf = buf;
+./" 	iocb->u.c.nbytes = count;
+./" 	iocb->u.c.offset = offset;
+./" }
+.TH io_prep_pwrite 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+io_prep_pwrite \- Set up iocb for asynchronous writes
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.br
+.sp
+.B #include <libaio.h>
+.br
+.sp
+.BI "inline void io_prep_pwrite(struct iocb *iocb, int fd, void *buf, size_t count, long long offset)
+"
+.sp
+struct iocb {
+	void		*data;
+	unsigned	key;
+	short		aio_lio_opcode;
+	short		aio_reqprio;
+	int		aio_fildes;
+};
+.fi
+.SH DESCRIPTION
+io_prep_write is a convenicence function for setting up parallel writes.
+
+The first
+.TP
+.IR "iocb->u.c.nbytes = count"
+bytes of the file for which
+.TP
+.IR "iocb->aio_fildes = fd"
+is a descriptor are written from the buffer
+starting at
+.TP
+.IR "iocb->u.c.buf = buf"
+.
+.br
+Writing starts at the absolute position
+.TP
+.IR "ioc->u.c.offset = offset"
+in the file.
+.PP
+This function returns immediately . To schedule the operation, the
+function
+.IR io_submit
+must be called.
+.PP
+Simultaneous asynchronous operations using the same iocb produce
+undefined results.
+.SH "RETURN VALUES"
+None
+.SH ERRORS
+None
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_queue_init.3 b/man/io_queue_init.3
new file mode 100644
index 0000000..317f631
--- /dev/null
+++ b/man/io_queue_init.3
@@ -0,0 +1,63 @@
+.TH io_queue_init 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_queue_init \- Initialize asynchronous io state machine
+
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.br
+.sp
+.B #include <libaio.h>
+.br
+.sp
+.BI "int io_queue_init(int maxevents, io_context_t  *ctx );"
+.sp
+.fi
+.SH DESCRIPTION
+.B io_queue_init
+Attempts to create an aio context capable of receiving at least 
+.IR maxevents
+events. 
+.IR ctx
+must point to an aio context that already exists and must be initialized
+to 
+.IR 0
+before the call.
+If the operation is successful, *cxtp is filled with the resulting handle.
+.SH "RETURN VALUES"
+On success,
+.B io_queue_init
+returns 0.  Otherwise, -error is return, where
+error is one of the Exxx values defined in the Errors section.
+.SH ERRORS
+.TP
+.B EFAULT
+.I iocbs
+referenced data outside of the program's accessible address space.
+.TP
+.B EINVAL
+.I maxevents
+is <= 0 or 
+.IR ctx
+is an invalid memory locattion.
+.TP
+.B ENOSYS 
+Not implemented
+.TP
+.B EAGAIN
+.IR "maxevents > max_aio_reqs"
+where max_aio_reqs is a tunable value.
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_queue_release.3 b/man/io_queue_release.3
new file mode 100644
index 0000000..06b9ec0
--- /dev/null
+++ b/man/io_queue_release.3
@@ -0,0 +1,48 @@
+.TH io_queue_release 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_queue_release \- Release the context associated with the userspace handle
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.br
+.B #include <libaio.h>
+.br
+.sp
+.BI "int io_queue_release(io_context_t ctx)"
+.sp
+.SH DESCRIPTION
+.B io_queue_release
+destroys the context associated with the userspace handle.    May cancel any outstanding
+AIOs and block on completion.
+
+.B cts.
+.SH "RETURN VALUES"
+On success,
+.B io_queue_release
+returns 0.  Otherwise, -error is return, where
+error is one of the Exxx values defined in the Errors section.
+.SH ERRORS
+.TP
+.B EINVAL
+.I ctx 
+refers to an unitialized aio context, the iocb pointed to by
+.I iocbs 
+contains an improperly initialized iocb,
+.TP
+.B ENOSYS 
+Not implemented
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
+
diff --git a/man/io_queue_run.3 b/man/io_queue_run.3
new file mode 100644
index 0000000..57dd417
--- /dev/null
+++ b/man/io_queue_run.3
@@ -0,0 +1,50 @@
+.TH io_queue_run 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_queue_run \- Handle completed io requests
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.br
+.sp
+.B #include <libaio.h>
+.br
+.sp
+.BI "int io_queue_run(io_context_t  ctx );"
+.sp
+.fi
+.SH DESCRIPTION
+.B io_queue_run
+Attempts to read  all the events events from
+the completion queue for the aio_context specified by ctx_id.
+.SH "RETURN VALUES"
+May return
+0 if no events are available.
+Will fail with -ENOSYS if not implemented.
+.SH ERRORS
+.TP
+.B EFAULT
+.I iocbs
+referenced data outside of the program's accessible address space.
+.TP
+.B EINVAL
+.I ctx 
+refers to an unitialized aio context, the iocb pointed to by
+.I iocbs 
+contains an improperly initialized iocb,
+.TP
+.B ENOSYS 
+Not implemented
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_queue_wait.3 b/man/io_queue_wait.3
new file mode 100644
index 0000000..2306663
--- /dev/null
+++ b/man/io_queue_wait.3
@@ -0,0 +1,56 @@
+.TH io_queue_wait 2 2002-09-03 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_queue_wait \- Wait for io requests to complete
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.br
+.sp
+.B #include <libaio.h>
+.br
+.sp
+.BI "int io_queue_wait(io_context_t ctx, const struct timespec *timeout);"
+.fi
+.SH DESCRIPTION
+Attempts to read  an event from
+the completion queue for the aio_context specified by ctx_id.
+.SH "RETURN VALUES"
+May return
+0 if no events are available and the timeout specified
+by when has elapsed, where when == NULL specifies an infinite
+timeout.  Note that the timeout pointed to by when is relative and
+will be updated if not NULL and the operation blocks.  Will fail
+with -ENOSYS if not implemented.
+.SH "RETURN VALUES"
+On success,
+.B io_queue_wait
+returns 0.  Otherwise, -error is return, where
+error is one of the Exxx values defined in the Errors section.
+.SH ERRORS
+.TP
+.B EFAULT
+.I iocbs
+referenced data outside of the program's accessible address space.
+.TP
+.B EINVAL
+.I ctx 
+refers to an unitialized aio context, the iocb pointed to by
+.I iocbs 
+contains an improperly initialized iocb,
+.TP
+.B ENOSYS 
+Not implemented
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_set_callback(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_set_callback.3 b/man/io_set_callback.3
new file mode 100644
index 0000000..a8ca789
--- /dev/null
+++ b/man/io_set_callback.3
@@ -0,0 +1,44 @@
+./"static inline void io_set_callback(struct iocb *iocb, io_callback_t cb)
+.TH io_set_callback 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+io_set_callback \- Set up io completion callback function
+.SH SYNOPSYS
+.nf
+.B #include <errno.h>
+.br
+.sp
+.B #include <libaio.h>
+.br
+.sp
+.BI "static inline void io_set_callback(struct iocb *iocb, io_callback_t cb)"
+.sp
+struct iocb {
+	void		*data;
+	unsigned	key;
+	short		aio_lio_opcode;
+	short		aio_reqprio;
+	int		aio_fildes;
+};
+.sp
+typedef void (*io_callback_t)(io_context_t ctx, struct iocb *iocb, long res, long res2);
+.sp
+.fi
+.SH DESCRIPTION
+The callback is not done if the caller uses raw events from 
+io_getevents, only with the library helpers
+.SH "RETURN VALUES"
+.SH ERRORS
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_submit(3),
+.BR errno(3)
diff --git a/man/io_setup.1 b/man/io_setup.1
new file mode 100644
index 0000000..68690e1
--- /dev/null
+++ b/man/io_setup.1
@@ -0,0 +1,15 @@
+./"/* sys_io_setup:
+./" *      Create an aio_context capable of receiving at least nr_events.
+./" *      ctxp must not point to an aio_context that already exists, and
+./" *      must be initialized to 0 prior to the call.  On successful
+./" *      creation of the aio_context, *ctxp is filled in with the resulting 
+./" *      handle.  May fail with -EINVAL if *ctxp is not initialized,
+./" *      if the specified nr_events exceeds internal limits.  May fail 
+./" *      with -EAGAIN if the specified nr_events exceeds the user's limit 
+./" *      of available events.  May fail with -ENOMEM if insufficient kernel
+./" *      resources are available.  May fail with -EFAULT if an invalid
+./" *      pointer is passed for ctxp.  Will fail with -ENOSYS if not
+./" *      implemented.
+./" */
+./" -- note: libaio is actually providing io_queue_init and io_queue_grow
+./" as separate functions.  For now io_setup is the same as io_queue_grow.
diff --git a/man/io_submit.1 b/man/io_submit.1
new file mode 100644
index 0000000..f66e80f
--- /dev/null
+++ b/man/io_submit.1
@@ -0,0 +1,109 @@
+.TH io_submit 2 2002-09-02 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_submit \- submit io requests
+.SH SYNOPSIS
+.B #include <errno.h>
+.br
+.B #include <libaio.h>
+.LP
+.BI "int io_submit(io_context_t " ctx ", long " nr ", struct iocb *" iocbs "[]);"
+.SH DESCRIPTION
+.B io_submit
+submits to the io_context
+.I ctx
+up to
+.I nr
+I/O requests pointed to by the vector
+.IR iocbs .
+
+The
+.B iocb
+structure is defined as something like
+.sp
+.RS
+.nf
+struct iocb {
+    void    *data;
+.\"    unsigned    key;
+    short    aio_lio_opcode;
+    short    aio_reqprio;
+    int      aio_fildes;
+};
+.fi
+.RE
+.sp
+.I data
+is a an opaque pointer which will upon completion be returned in the
+.B io_event
+structure by
+.BR io_getevents (2).
+.\" and io_wait(2)
+Callers will typically use this to point directly or indirectly to a
+callback function.
+.sp
+.I aio_lio_opcode
+is the I/O operation requested.  Callers will typically set this and the
+arguments to the I/O operation calling the
+.BR io_prep_ (3)
+function corresponding to the operation.
+.sp
+.I aio_reqprio
+is the priority of the request.  Higher values have more priority; the
+normal priority is 0.
+.sp
+.I aio_fildes
+is the file descriptor for the I/O operation.
+Callers will typically set this and the
+arguments to the I/O operation calling the
+.BR io_prep_ *(3)
+function corresponding to the operation.
+.sp
+The caller may not modify the contents or resubmit a submitted
+.B iocb
+structure until after the operation completes or is canceled.
+The implementation of
+.BR io_submit (2)
+is permitted to modify reserved fields of the
+.B iocb
+structure.
+.SH "RETURN VALUES"
+If able to submit at least one iocb,
+.B io_submit
+returns the number of iocbs submitted successfully.  Otherwise, 
+.RI - error
+is returned, where 
+.I error
+is one of the Exxx values defined in the Errors section.
+.SH ERRORS
+.TP
+.B EFAULT
+.I iocbs
+referenced data outside of the program's accessible address space.
+.TP
+.B EINVAL
+.I nr
+is negative,
+.I ctx
+refers to an uninitialized aio context, the iocb pointed to by 
+.IR iocbs [0]
+is improperly initialized or specifies an unsupported operation.
+.TP
+.B EBADF
+The iocb pointed to by
+.IR iocbs [0]
+contains a file descriptor that does not exist.
+.TP
+.B EAGAIN
+Insufficient resources were available to queue any operations.
+.SH "SEE ALSO"
+.BR io_setup (2),
+.BR io_destroy (2),
+.BR io_getevents (2),
+.\".BR io_wait (2),
+.BR io_prep_pread (3),
+.BR io_prep_pwrite (3),
+.BR io_prep_fsync (3),
+.BR io_prep_fdsync (3),
+.BR io_prep_noop (3),
+.BR io_cancel (2),
+.BR errno (3)
diff --git a/man/io_submit.3 b/man/io_submit.3
new file mode 100644
index 0000000..b6966ef
--- /dev/null
+++ b/man/io_submit.3
@@ -0,0 +1,135 @@
+./"/* sys_io_submit:
+./" *      Queue the nr iocbs pointed to by iocbpp for processing.  Returns
+./" *      the number of iocbs queued.  May return -EINVAL if the aio_context
+./" *      specified by ctx_id is invalid, if nr is < 0, if the iocb at
+./" *      *iocbpp[0] is not properly initialized, if the operation specified
+./" *      is invalid for the file descriptor in the iocb.  May fail with
+./" *      -EFAULT if any of the data structures point to invalid data.  May
+./" *      fail with -EBADF if the file descriptor specified in the first
+./" *      iocb is invalid.  May fail with -EAGAIN if insufficient resources
+./" *      are available to queue any iocbs.  Will return 0 if nr is 0.  Will
+./" *      fail with -ENOSYS if not implemented.
+./" */
+.TH io_submit 2 2002-09-02 "Linux 2.4" "Linux AIO"
+.SH NAME
+io_submit \- Submit io requests
+.SH SYNOPSIS
+.nf
+.B #include <errno.h>
+.br
+.sp
+.B #include <libaio.h>
+.br
+.sp
+.BI "int io_submit(io_context_t " ctx ", long " nr ", struct iocb *" iocbs "[]);"
+.sp
+struct iocb {
+	void		*data;
+	unsigned	key;
+	short		aio_lio_opcode;
+	short		aio_reqprio;
+	int		aio_fildes;
+};
+.fi
+.SH DESCRIPTION
+.B io_submit
+submits
+.I nr
+iocbs for processing for a given io context ctx.
+
+The 
+.IR "io_submit"
+function can be used to enqueue an arbitrary
+number of read and write requests at one time.  The requests can all be
+meant for the same file, all for different files or every solution in
+between.
+
+.IR "io_submit"
+gets the 
+.IR "nr"
+requests from the array pointed to
+by 
+.IR "iocbs"
+.  The operation to be performed is determined by the
+.IR "aio_lio_opcode"
+member in each element of 
+.IR "iocbs"
+.  If this
+field is 
+.B "IO_CMD_PREAD"
+a read operation is enqueued, similar to a call
+of 
+.IR "io_prep_pread"
+for this element of the array (except that the way
+the termination is signalled is different, as we will see below).  If
+the 
+.IR "aio_lio_opcode"
+member is 
+.B "IO_CMD_PWRITE"
+a write operation
+is enqueued.  Otherwise the 
+.IR "aio_lio_opcode"
+must be 
+.B "IO_CMD_NOP"
+in which case this element of 
+.IR "iocbs"
+is simply ignored.  This
+``operation'' is useful in situations where one has a fixed array of
+.IR "struct iocb"
+elements from which only a few need to be handled at
+a time.  Another situation is where the 
+.IR "io_submit"
+call was
+canceled before all requests are processed  and the remaining requests have to be reissued.
+
+The other members of each element of the array pointed to by
+.IR "iocbs"
+must have values suitable for the operation as described in
+the documentation for 
+.IR "io_prep_pread"
+and 
+.IR "io_prep_pwrite"
+above.
+
+The function returns immediately after
+having enqueued all the requests.  
+On success,
+.B io_submit
+returns the number of iocbs submitted successfully.  Otherwise, -error is return, where 
+error is one of the Exxx values defined in the Errors section.
+.PP
+If an error is detected, then the behavior is undefined.
+.PP
+Simultaneous asynchronous operations using the same iocb produce
+undefined results.
+.SH ERRORS
+.TP
+.B EFAULT
+.I iocbs
+referenced data outside of the program's accessible address space.
+.TP
+.B EINVAL
+.I ctx
+refers to an unitialized aio context, the iocb pointed to by 
+.I iocbs
+contains an improperly initialized iocb, 
+.TP
+.B EBADF
+The iocb contains a file descriptor that does not exist.
+.TP
+.B EINVAL
+The file specified in the iocb does not support the given io operation.
+.SH "SEE ALSO"
+.BR io(3),
+.BR io_cancel(3),
+.BR io_fsync(3),
+.BR io_getevents(3),
+.BR io_prep_fsync(3),
+.BR io_prep_pread(3),
+.BR io_prep_pwrite(3),
+.BR io_queue_init(3),
+.BR io_queue_release(3),
+.BR io_queue_run(3),
+.BR io_queue_wait(3),
+.BR io_set_callback(3),
+.BR errno(3)
diff --git a/man/lio_listio.3 b/man/lio_listio.3
new file mode 100644
index 0000000..9b5b5e4
--- /dev/null
+++ b/man/lio_listio.3
@@ -0,0 +1,229 @@
+.TH  lio_listio 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+lio_listio - List directed I/O
+.SH SYNOPSYS
+.B #include <errno.h>
+.br
+.B #include <libaio.h>
+.LP
+.BI "int lio_listio (int mode, struct aiocb *const list[], int nent, struct sigevent *sig)"
+.nf
+.SH DESCRIPTION
+
+Besides these functions with the more or less traditional interface,
+POSIX.1b also defines a function which can initiate more than one
+operation at a time, and which can handle freely mixed read and write
+operations.  It is therefore similar to a combination of 
+.IR readv
+and
+.IR "writev"
+.
+
+The 
+.IR "lio_listio"
+function can be used to enqueue an arbitrary
+number of read and write requests at one time.  The requests can all be
+meant for the same file, all for different files or every solution in
+between.
+
+.IR "lio_listio"
+gets the 
+.IR "nent"
+requests from the array pointed to
+by 
+.IR "list"
+.  The operation to be performed is determined by the
+.IR "aio_lio_opcode"
+member in each element of 
+.IR "list"
+.  If this
+field is 
+.B "LIO_READ"
+a read operation is enqueued, similar to a call
+of 
+.IR "aio_read"
+for this element of the array (except that the way
+the termination is signalled is different, as we will see below).  If
+the 
+.IR "aio_lio_opcode"
+member is 
+.B "LIO_WRITE"
+a write operation
+is enqueued.  Otherwise the 
+.IR "aio_lio_opcode"
+must be 
+.B "LIO_NOP"
+in which case this element of 
+.IR "list"
+is simply ignored.  This
+``operation'' is useful in situations where one has a fixed array of
+.IR "struct aiocb"
+elements from which only a few need to be handled at
+a time.  Another situation is where the 
+.IR "lio_listio"
+call was
+canceled before all requests are processed  and the remaining requests have to be reissued.
+
+The other members of each element of the array pointed to by
+.IR "list"
+must have values suitable for the operation as described in
+the documentation for 
+.IR "aio_read"
+and 
+.IR "aio_write"
+above.
+
+The 
+.IR "mode"
+argument determines how 
+.IR "lio_listio"
+behaves after
+having enqueued all the requests.  If 
+.IR "mode"
+is 
+.B "LIO_WAIT"
+it
+waits until all requests terminated.  Otherwise 
+.IR "mode"
+must be
+.B "LIO_NOWAIT"
+and in this case the function returns immediately after
+having enqueued all the requests.  In this case the caller gets a
+notification of the termination of all requests according to the
+.IR "sig"
+parameter.  If 
+.IR "sig"
+is 
+.B "NULL"
+no notification is
+send.  Otherwise a signal is sent or a thread is started, just as
+described in the description for 
+.IR "aio_read"
+or 
+.IR "aio_write"
+.
+
+When the sources are compiled with 
+.B "_FILE_OFFSET_BITS == 64"
+, this
+function is in fact 
+.IR "lio_listio64"
+since the LFS interface
+transparently replaces the normal implementation.
+.SH "RETURN VALUES"
+If 
+.IR "mode"
+is 
+.B "LIO_WAIT"
+, the return value of 
+.IR "lio_listio"
+is 
+.IR 0
+when all requests completed successfully.  Otherwise the
+function return 
+.IR 1
+and 
+.IR "errno"
+is set accordingly.  To find
+out which request or requests failed one has to use the 
+.IR "aio_error"
+function on all the elements of the array 
+.IR "list"
+.
+
+In case 
+.IR "mode"
+is 
+.B "LIO_NOWAIT"
+, the function returns 
+.IR 0
+if
+all requests were enqueued correctly.  The current state of the requests
+can be found using 
+.IR "aio_error"
+and 
+.IR "aio_return"
+as described
+above.  If 
+.IR "lio_listio"
+returns 
+.IR -1
+in this mode, the
+global variable 
+.IR "errno"
+is set accordingly.  If a request did not
+yet terminate, a call to 
+.IR "aio_error"
+returns 
+.B "EINPROGRESS"
+.  If
+the value is different, the request is finished and the error value (or
+
+.IR 0
+) is returned and the result of the operation can be retrieved
+using 
+.IR "aio_return"
+.
+.SH ERRORS
+Possible values for 
+.IR "errno"
+are:
+
+.TP
+.B EAGAIN
+The resources necessary to queue all the requests are not available at
+the moment.  The error status for each element of 
+.IR "list"
+must be
+checked to determine which request failed.
+
+Another reason could be that the system wide limit of AIO requests is
+exceeded.  This cannot be the case for the implementation on GNU systems
+since no arbitrary limits exist.
+.TP
+.B EINVAL
+The 
+.IR "mode"
+parameter is invalid or 
+.IR "nent"
+is larger than
+.B "AIO_LISTIO_MAX"
+.
+.TP
+.B EIO
+One or more of the request's I/O operations failed.  The error status of
+each request should be checked to determine which one failed.
+.TP
+.B ENOSYS
+The 
+.IR "lio_listio"
+function is not supported.
+.PP
+
+If the 
+.IR "mode"
+parameter is 
+.B "LIO_NOWAIT"
+and the caller cancels
+a request, the error status for this request returned by
+.IR "aio_error"
+is 
+.B "ECANCELED"
+.
+.SH "SEE ALSO"
+.BR aio(3),
+.BR aio_cancel(3),
+.BR aio_cancel64(3),
+.BR aio_error(3),
+.BR aio_error64(3),
+.BR aio_fsync(3),
+.BR aio_fsync64(3),
+.BR aio_init(3),
+.BR aio_read(3),
+.BR aio_read64(3),
+.BR aio_return(3),
+.BR aio_return64(3),
+.BR aio_suspend(3),
+.BR aio_suspend64(3),
+.BR aio_write(3),
+.BR aio_write64(3)
diff --git a/man/lio_listio64.3 b/man/lio_listio64.3
new file mode 100644
index 0000000..97f6955
--- /dev/null
+++ b/man/lio_listio64.3
@@ -0,0 +1,39 @@
+.TH lio_listio64 3 2002-09-12 "Linux 2.4" Linux AIO"
+.SH NAME
+lio_listio64 \- List directed I/O
+.SH SYNOPSYS
+.B #include <errno.h>
+.br
+.B #include <libaio.h>
+.LP
+.BI "int lio_listio64 (int mode, struct aiocb *const list[], int nent, struct sigevent *sig)"
+.nf
+.SH DESCRIPTION
+This function is similar to the 
+.IR "code{lio_listio"
+function.  The only
+difference is that on 
+.IR "32 bit"
+machines, the file descriptor should
+be opened in the large file mode.  Internally, 
+.IR "lio_listio64"
+uses
+functionality equivalent to 
+.IR lseek64"
+to position the file descriptor correctly for the reading or
+writing, as opposed to 
+.IR "lseek"
+functionality used in
+.IR "lio_listio".
+
+When the sources are compiled with 
+.IR "_FILE_OFFSET_BITS == 64"
+, this
+function is available under the name 
+.IR "lio_listio"
+and so
+transparently replaces the interface for small files on 32 bit
+machines.
+.SH "RETURN VALUES"
+.SH ERRORS
+.SH "SEE ALSO"
diff --git a/raw_syscall.c b/raw_syscall.c
new file mode 100644
index 0000000..c3fe4b8
--- /dev/null
+++ b/raw_syscall.c
@@ -0,0 +1,19 @@
+#include "syscall.h"
+
+#if defined(__ia64__)
+/* based on code from glibc by Jes Sorensen */
+__asm__(".text\n"
+	".globl	__ia64_aio_raw_syscall\n"
+	".proc	__ia64_aio_raw_syscall\n"
+	"__ia64_aio_raw_syscall:\n"
+	"alloc r2=ar.pfs,1,0,8,0\n"
+	"mov r15=r32\n"
+	"break 0x100000\n"
+	";;"
+	"br.ret.sptk.few b0\n"
+	".size __ia64_aio_raw_syscall, . - __ia64_aio_raw_syscall\n"
+	".endp __ia64_aio_raw_syscall"
+);
+#endif
+
+;
diff --git a/syscall-alpha.h b/syscall-alpha.h
new file mode 100644
index 0000000..467b74f
--- /dev/null
+++ b/syscall-alpha.h
@@ -0,0 +1,209 @@
+#define __NR_io_setup		398
+#define __NR_io_destroy		399
+#define __NR_io_getevents	400
+#define __NR_io_submit		401
+#define __NR_io_cancel		402
+
+#define inline_syscall_r0_asm
+#define inline_syscall_r0_out_constraint        "=v"
+
+#define inline_syscall_clobbers                    \
+   "$1", "$2", "$3", "$4", "$5", "$6", "$7", "$8", \
+   "$22", "$23", "$24", "$25", "$27", "$28", "memory"
+
+#define inline_syscall0(name, args...)                          \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2"                              \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19)                                       \
+	   : "0"(_sc_0)                                         \
+	   : inline_syscall_clobbers,                           \
+             "$16", "$17", "$18", "$20", "$21");                \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall1(name,arg1)                              \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3"                           \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16)                         \
+	   : "0"(_sc_0), "2"(_sc_16)                            \
+	   : inline_syscall_clobbers,                           \
+             "$17", "$18", "$20", "$21");                       \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall2(name,arg1,arg2)                         \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4"                        \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17)           \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17)               \
+	   : inline_syscall_clobbers,                           \
+             "$18", "$20", "$21");                              \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall3(name,arg1,arg2,arg3)                    \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5"                     \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18)                                       \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17),              \
+             "4"(_sc_18)                                        \
+	   : inline_syscall_clobbers, "$20", "$21");            \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall4(name,arg1,arg2,arg3,arg4)               \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        _sc_19 = (long) (arg4);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5 %6"                  \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18)                                       \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17),              \
+             "4"(_sc_18), "1"(_sc_19)                           \
+	   : inline_syscall_clobbers, "$20", "$21");            \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall5(name,arg1,arg2,arg3,arg4,arg5)          \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+        register long _sc_20 __asm__("$20");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        _sc_19 = (long) (arg4);                                 \
+        _sc_20 = (long) (arg5);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7"               \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18), "=r"(_sc_20)                         \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17),              \
+             "4"(_sc_18), "1"(_sc_19), "5"(_sc_20)              \
+	   : inline_syscall_clobbers, "$21");                   \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define inline_syscall6(name,arg1,arg2,arg3,arg4,arg5,arg6)     \
+{                                                               \
+        register long _sc_0 inline_syscall_r0_asm;              \
+        register long _sc_16 __asm__("$16");                    \
+        register long _sc_17 __asm__("$17");                    \
+        register long _sc_18 __asm__("$18");                    \
+        register long _sc_19 __asm__("$19");                    \
+        register long _sc_20 __asm__("$20");                    \
+        register long _sc_21 __asm__("$21");                    \
+                                                                \
+        _sc_0 = name;                                           \
+        _sc_16 = (long) (arg1);                                 \
+        _sc_17 = (long) (arg2);                                 \
+        _sc_18 = (long) (arg3);                                 \
+        _sc_19 = (long) (arg4);                                 \
+        _sc_20 = (long) (arg5);                                 \
+        _sc_21 = (long) (arg6);                                 \
+        __asm__ __volatile__                                    \
+          ("callsys # %0 %1 <= %2 %3 %4 %5 %6 %7 %8"            \
+	   : inline_syscall_r0_out_constraint (_sc_0),          \
+             "=r"(_sc_19), "=r"(_sc_16), "=r"(_sc_17),          \
+             "=r"(_sc_18), "=r"(_sc_20), "=r"(_sc_21)           \
+	   : "0"(_sc_0), "2"(_sc_16), "3"(_sc_17), "4"(_sc_18), \
+             "1"(_sc_19), "5"(_sc_20), "6"(_sc_21)              \
+	   : inline_syscall_clobbers);                          \
+        _sc_ret = _sc_0, _sc_err = _sc_19;                      \
+}
+
+#define INLINE_SYSCALL1(name, nr, args...)      \
+({                                              \
+        long _sc_ret, _sc_err;                  \
+        inline_syscall##nr(__NR_##name, args);  \
+        if (_sc_err != 0)                       \
+        {                                       \
+            _sc_ret = -(_sc_ret);               \
+        }                                       \
+        _sc_ret;                                \
+})
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1)							\
+{                                                                       \
+   return (type)INLINE_SYSCALL1(sname, 1, arg1);                        \
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2)					\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 2, arg1, arg2);                  \
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3)				\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 3, arg1, arg2, arg3);            \
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 4, arg1, arg2, arg3, arg4);      \
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+	  type5,arg5)							\
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)	\
+{									\
+   return (type)INLINE_SYSCALL1(sname, 5, arg1, arg2, arg3, arg4, arg5);\
+}
diff --git a/syscall-arm.h b/syscall-arm.h
new file mode 100644
index 0000000..4a9b665
--- /dev/null
+++ b/syscall-arm.h
@@ -0,0 +1,116 @@
+/*
+ *  linux/include/asm-arm/unistd.h
+ *
+ *  Copyright (C) 2001-2005 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Please forward _all_ changes to this file to rmk@arm.linux.org.uk,
+ * no matter what the change is.  Thanks!
+ */
+
+#define __NR_OABI_SYSCALL_BASE	0x900000
+
+#if defined(__thumb__) || defined(__ARM_EABI__)
+#define __NR_SYSCALL_BASE	0
+#else
+#define __NR_SYSCALL_BASE	__NR_OABI_SYSCALL_BASE
+#endif
+
+#define __NR_io_setup			(__NR_SYSCALL_BASE+243)
+#define __NR_io_destroy			(__NR_SYSCALL_BASE+244)
+#define __NR_io_getevents		(__NR_SYSCALL_BASE+245)
+#define __NR_io_submit			(__NR_SYSCALL_BASE+246)
+#define __NR_io_cancel			(__NR_SYSCALL_BASE+247)
+
+#define __sys2(x) #x
+#define __sys1(x) __sys2(x)
+
+#if defined(__thumb__) || defined(__ARM_EABI__)
+#define __SYS_REG(name) register long __sysreg __asm__("r7") = __NR_##name;
+#define __SYS_REG_LIST(regs...) "r" (__sysreg) , ##regs
+#define __syscall(name) "swi\t0"
+#else
+#define __SYS_REG(name)
+#define __SYS_REG_LIST(regs...) regs
+#define __syscall(name) "swi\t" __sys1(__NR_##name) ""
+#endif
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1) {						\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0) )					\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2) {					\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1) )			\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3) {				\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __r2 __asm__("r2") = (long)arg3;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2) )		\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {		\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __r2 __asm__("r2") = (long)arg3;			\
+  register long __r3 __asm__("r3") = (long)arg4;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2), "r" (__r3) ) \
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5)	\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) {\
+  __SYS_REG(sname)							\
+  register long __r0 __asm__("r0") = (long)arg1;			\
+  register long __r1 __asm__("r1") = (long)arg2;			\
+  register long __r2 __asm__("r2") = (long)arg3;			\
+  register long __r3 __asm__("r3") = (long)arg4;			\
+  register long __r4 __asm__("r4") = (long)arg5;			\
+  register long __res_r0 __asm__("r0");					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_r0)						\
+	: __SYS_REG_LIST( "0" (__r0), "r" (__r1), "r" (__r2),		\
+			  "r" (__r3), "r" (__r4) )			\
+	: "memory" );							\
+  return (type) __res_r0;						\
+}
+
diff --git a/syscall-arm64.h b/syscall-arm64.h
new file mode 100644
index 0000000..9c93c9b
--- /dev/null
+++ b/syscall-arm64.h
@@ -0,0 +1,123 @@
+/*
+ *  linux/include/asm-arm/unistd.h
+ *
+ *  Copyright (C) 2001-2005 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Please forward _all_ changes to this file to rmk@arm.linux.org.uk,
+ * no matter what the change is.  Thanks!
+ */
+
+// Syscall hooks for Sanitizer tools.
+// They help sanitizers update their knowledge of the process memory state
+// before and after a system call.
+#if defined(ADDRESS_SANITIZER) || defined(HWADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || defined(THREAD_SANITIZER)
+#include <sanitizer/linux_syscall_hooks.h>
+#define PRE(name, ...) __sanitizer_syscall_pre_##name(__VA_ARGS__)
+#define POST(name, res, ...) __sanitizer_syscall_post_##name(res, __VA_ARGS__)
+#else
+#define PRE(...)
+#define POST(...)
+#endif
+
+#define __NR_io_setup			0
+#define __NR_io_destroy			1
+#define __NR_io_submit			2
+#define __NR_io_cancel			3
+#define __NR_io_getevents		4
+
+#define __sys2(x) #x
+#define __sys1(x) __sys2(x)
+
+#define __SYS_REG(name) register long __sysreg __asm__("w8") = __NR_##name;
+#define __SYS_REG_LIST(regs...) "r" (__sysreg) , ##regs
+#define __syscall(name) "svc\t#0"
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1) {						\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __res_x0 __asm__("x0");					\
+  PRE(sname, arg1);							\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0) )					\
+	: "memory" );							\
+  POST(sname, __res_x0, arg1);						\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2) {					\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __res_x0 __asm__("x0");					\
+  PRE(sname, arg1, arg2);						\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1) )			\
+	: "memory" );							\
+  POST(sname, __res_x0, arg1, arg2);					\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3) {				\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __x2 __asm__("x2") = (long)arg3;			\
+  register long __res_x0 __asm__("x0");					\
+  PRE(sname, arg1, arg2, arg3);						\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1), "r" (__x2) )		\
+	: "memory" );							\
+  POST(sname, __res_x0, arg1, arg2, arg3);				\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {		\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __x2 __asm__("x2") = (long)arg3;			\
+  register long __x3 __asm__("x3") = (long)arg4;			\
+  register long __res_x0 __asm__("x0");					\
+  PRE(sname, arg1, arg2, arg3, arg4);					\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1), "r" (__x2), "r" (__x3) ) \
+	: "memory" );							\
+  POST(sname, __res_x0, arg1, arg2, arg3, arg4);			\
+  return (type) __res_x0;						\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5)	\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) {\
+  __SYS_REG(sname)							\
+  register long __x0 __asm__("x0") = (long)arg1;			\
+  register long __x1 __asm__("x1") = (long)arg2;			\
+  register long __x2 __asm__("x2") = (long)arg3;			\
+  register long __x3 __asm__("x3") = (long)arg4;			\
+  register long __x4 __asm__("x4") = (long)arg5;			\
+  register long __res_x0 __asm__("x0");					\
+  PRE(sname, arg1, arg2, arg3, arg4, arg5);				\
+  __asm__ __volatile__ (						\
+  __syscall(sname)							\
+	: "=r" (__res_x0)						\
+	: __SYS_REG_LIST( "0" (__x0), "r" (__x1), "r" (__x2),		\
+			  "r" (__x3), "r" (__x4) )			\
+	: "memory" );							\
+  POST(sname, __res_x0, arg1, arg2, arg3, arg4, arg5);			\
+  return (type) __res_x0;						\
+}
diff --git a/syscall-i386.h b/syscall-i386.h
new file mode 100644
index 0000000..a2b8d02
--- /dev/null
+++ b/syscall-i386.h
@@ -0,0 +1,72 @@
+#define __NR_io_setup		245
+#define __NR_io_destroy		246
+#define __NR_io_getevents	247
+#define __NR_io_submit		248
+#define __NR_io_cancel		249
+
+#define io_syscall1(type,fname,sname,type1,arg1)	\
+type fname(type1 arg1)					\
+{							\
+long __res;						\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"			\
+		  "int $0x80\n"				\
+		  "xchgl %%edi,%%ebx"			\
+	: "=a" (__res)					\
+	: "0" (__NR_##sname),"D" ((long)(arg1)));	\
+return __res;						\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2)					\
+{									\
+long __res;								\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "xchgl %%edi,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"c" ((long)(arg2)));	\
+return __res;								\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3)				\
+{									\
+long __res;								\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "xchgl %%edi,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"c" ((long)(arg2)),	\
+		  "d" ((long)(arg3)));					\
+return __res;								\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+long __res;								\
+__asm__ volatile ("xchgl %%edi,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "xchgl %%edi,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"c" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"S" ((long)(arg4)));			\
+return __res;								\
+} 
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+	  type5,arg5)							\
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)	\
+{									\
+long __res;								\
+long tmp = 0;								\
+__asm__ volatile ("movl %%ebx,%7\n"					\
+		  "movl %2,%%ebx\n"					\
+		  "int $0x80\n"						\
+		  "movl %7,%%ebx"					\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"rm" ((long)(arg1)),"c" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5)), \
+	  "m" (tmp));							\
+return __res;								\
+}
diff --git a/syscall-ia64.h b/syscall-ia64.h
new file mode 100644
index 0000000..52ce9dd
--- /dev/null
+++ b/syscall-ia64.h
@@ -0,0 +1,45 @@
+#define __NR_io_setup		1238
+#define __NR_io_destroy		1239
+#define __NR_io_getevents	1240
+#define __NR_io_submit		1241
+#define __NR_io_cancel		1242
+
+#define __ia64_raw_syscall(fname, sname) \
+	__asm__ (".text\n"						\
+		".globl " SYMSTR(fname) "\n"				\
+		".proc " SYMSTR(fname) "\n"				\
+		SYMSTR(fname) ":\n"					\
+		"	mov r15=" SYMSTR( __NR_ ## sname ) "\n"		\
+		"	break 0x100000\n"				\
+		"	;;\n"						\
+		"	cmp.eq p6,p0=-1,r10\n"				\
+		"	;;\n"						\
+		"	(p6) sub r8=0,r8\n"				\
+		"	br.ret.sptk.few b0\n"				\
+		".size " SYMSTR(fname) ", . - " SYMSTR(fname) "\n"	\
+		".endp " SYMSTR(fname) "\n"				\
+	);
+
+#define io_syscall0(type, name)						\
+	extern type name(void);						\
+	__ia64_raw_syscall(name);
+
+#define io_syscall1(type, fname, sname, type1, arg1)			\
+	extern type fname(type1 arg1);					\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall2(type, fname, sname, type1, arg1, type2, arg2)	\
+	extern type fname(type1 arg1, type2 arg2);			\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall3(type, fname, sname, type1, arg1, type2, arg2, type3, arg3)	\
+	extern type fname(type1 arg1, type2 arg2, type3 arg3);		\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall4(type, fname, sname, type1, arg1, type2, arg2, type3, arg3, type4, arg4)	\
+	extern type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4);		\
+	__ia64_raw_syscall(fname, sname);
+
+#define io_syscall5(type, fname, sname, type1, arg1, type2, arg2, type3, arg3, type4, arg4, type5, arg5)	\
+	extern type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5);			\
+	__ia64_raw_syscall(fname, sname);
diff --git a/syscall-ppc.h b/syscall-ppc.h
new file mode 100644
index 0000000..ca70dd2
--- /dev/null
+++ b/syscall-ppc.h
@@ -0,0 +1,94 @@
+#define __NR_io_setup		227
+#define __NR_io_destroy		228
+#define __NR_io_getevents	229
+#define __NR_io_submit		230
+#define __NR_io_cancel		231
+
+/* On powerpc a system call basically clobbers the same registers like a
+ * function call, with the exception of LR (which is needed for the
+ * "sc; bnslr" sequence) and CR (where only CR0.SO is clobbered to signal
+ * an error return status).
+ */
+
+#define __syscall_nr(nr, type, name, args...)				\
+	unsigned long __sc_ret, __sc_err;				\
+	{								\
+		register unsigned long __sc_0  __asm__ ("r0");		\
+		register unsigned long __sc_3  __asm__ ("r3");		\
+		register unsigned long __sc_4  __asm__ ("r4");		\
+		register unsigned long __sc_5  __asm__ ("r5");		\
+		register unsigned long __sc_6  __asm__ ("r6");		\
+		register unsigned long __sc_7  __asm__ ("r7");		\
+		register unsigned long __sc_8  __asm__ ("r8");		\
+									\
+		__sc_loadargs_##nr(name, args);				\
+		__asm__ __volatile__					\
+			("sc           \n\t"				\
+			 "mfcr %0      "				\
+			: "=&r" (__sc_0),				\
+			  "=&r" (__sc_3),  "=&r" (__sc_4),		\
+			  "=&r" (__sc_5),  "=&r" (__sc_6),		\
+			  "=&r" (__sc_7),  "=&r" (__sc_8)		\
+			: __sc_asm_input_##nr				\
+			: "cr0", "ctr", "memory",			\
+			        "r9", "r10","r11", "r12");		\
+		__sc_ret = __sc_3;					\
+		__sc_err = __sc_0;					\
+	}								\
+	if (__sc_err & 0x10000000) return -((int)__sc_ret);		\
+	return (type) __sc_ret
+
+#define __sc_loadargs_0(name, dummy...)					\
+	__sc_0 = __NR_##name
+#define __sc_loadargs_1(name, arg1)					\
+	__sc_loadargs_0(name);						\
+	__sc_3 = (unsigned long) (arg1)
+#define __sc_loadargs_2(name, arg1, arg2)				\
+	__sc_loadargs_1(name, arg1);					\
+	__sc_4 = (unsigned long) (arg2)
+#define __sc_loadargs_3(name, arg1, arg2, arg3)				\
+	__sc_loadargs_2(name, arg1, arg2);				\
+	__sc_5 = (unsigned long) (arg3)
+#define __sc_loadargs_4(name, arg1, arg2, arg3, arg4)			\
+	__sc_loadargs_3(name, arg1, arg2, arg3);			\
+	__sc_6 = (unsigned long) (arg4)
+#define __sc_loadargs_5(name, arg1, arg2, arg3, arg4, arg5)		\
+	__sc_loadargs_4(name, arg1, arg2, arg3, arg4);			\
+	__sc_7 = (unsigned long) (arg5)
+
+#define __sc_asm_input_0 "0" (__sc_0)
+#define __sc_asm_input_1 __sc_asm_input_0, "1" (__sc_3)
+#define __sc_asm_input_2 __sc_asm_input_1, "2" (__sc_4)
+#define __sc_asm_input_3 __sc_asm_input_2, "3" (__sc_5)
+#define __sc_asm_input_4 __sc_asm_input_3, "4" (__sc_6)
+#define __sc_asm_input_5 __sc_asm_input_4, "5" (__sc_7)
+
+#define io_syscall1(type,fname,sname,type1,arg1)				\
+type fname(type1 arg1)							\
+{									\
+	__syscall_nr(1, type, sname, arg1);				\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1, type2 arg2)					\
+{									\
+	__syscall_nr(2, type, sname, arg1, arg2);			\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1, type2 arg2, type3 arg3)				\
+{									\
+	__syscall_nr(3, type, sname, arg1, arg2, arg3);			\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+	__syscall_nr(4, type, sname, arg1, arg2, arg3, arg4);		\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5)	\
+{									\
+	__syscall_nr(5, type, sname, arg1, arg2, arg3, arg4, arg5);	\
+}
diff --git a/syscall-s390.h b/syscall-s390.h
new file mode 100644
index 0000000..3ec5ee3
--- /dev/null
+++ b/syscall-s390.h
@@ -0,0 +1,131 @@
+#define __NR_io_setup		243
+#define __NR_io_destroy		244
+#define __NR_io_getevents	245
+#define __NR_io_submit		246
+#define __NR_io_cancel		247
+
+#define io_svc_clobber "1", "cc", "memory"
+
+#define io_syscall1(type,fname,sname,type1,arg1)		\
+type fname(type1 arg1) {					\
+	register type1 __arg1 asm("2") = arg1;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    .svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)	\
+type fname(type1 arg1, type2 arg2) {				\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,	\
+		    type3,arg3)					\
+type fname(type1 arg1, type2 arg2, type3 arg3) {		\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register type3 __arg3 asm("4") = arg3;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2),					\
+		  "d" (__arg3)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,	\
+		    type3,arg3,type4,arg4)			\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4) {	\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register type3 __arg3 asm("4") = arg3;			\
+	register type4 __arg4 asm("5") = arg4;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2),					\
+		  "d" (__arg3),					\
+		  "d" (__arg4)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,	\
+		    type3,arg3,type4,arg4,type5,arg5)		\
+type fname(type1 arg1, type2 arg2, type3 arg3, type4 arg4,	\
+	   type5 arg5) {					\
+	register type1 __arg1 asm("2") = arg1;			\
+	register type2 __arg2 asm("3") = arg2;			\
+	register type3 __arg3 asm("4") = arg3;			\
+	register type4 __arg4 asm("5") = arg4;			\
+	register type5 __arg5 asm("6") = arg5;			\
+	register long __svcres asm("2");			\
+	long __res;						\
+	__asm__ __volatile__ (					\
+		"    .if %1 < 256\n"				\
+		"    svc %b1\n"					\
+		"    .else\n"					\
+		"    la  %%r1,%1\n"				\
+		"    svc 0\n"					\
+		"    .endif"					\
+		: "=d" (__svcres)				\
+		: "i" (__NR_##sname),				\
+		  "0" (__arg1),					\
+		  "d" (__arg2),					\
+		  "d" (__arg3),					\
+		  "d" (__arg4),					\
+		  "d" (__arg5)					\
+		: io_svc_clobber );				\
+	__res = __svcres;					\
+	return (type) __res;					\
+}
diff --git a/syscall-x86_64.h b/syscall-x86_64.h
new file mode 100644
index 0000000..8972cab
--- /dev/null
+++ b/syscall-x86_64.h
@@ -0,0 +1,85 @@
+// Syscall hooks for Sanitizer tools.
+// They help sanitizers update their knowledge of the process memory state
+// before and after a system call.
+#if defined(ADDRESS_SANITIZER) || defined(HWADDRESS_SANITIZER) || defined(MEMORY_SANITIZER) || defined(THREAD_SANITIZER)
+#include <sanitizer/linux_syscall_hooks.h>
+#define PRE(name, ...) __sanitizer_syscall_pre_##name(__VA_ARGS__)
+#define POST(name, res, ...) __sanitizer_syscall_post_##name(res, __VA_ARGS__)
+#else
+#define PRE(...)
+#define POST(...)
+#endif
+
+#define __NR_io_setup		206
+#define __NR_io_destroy		207
+#define __NR_io_getevents	208
+#define __NR_io_submit		209
+#define __NR_io_cancel		210
+
+#define __syscall_clobber "r11","rcx","memory" 
+#define __syscall "syscall"
+
+#define io_syscall1(type,fname,sname,type1,arg1)			\
+type fname(type1 arg1)							\
+{									\
+long __res;								\
+ PRE(sname, arg1);							\
+__asm__ volatile (__syscall						\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)) : __syscall_clobber );	\
+ POST(sname, __res, arg1);							\
+return __res;								\
+}
+
+#define io_syscall2(type,fname,sname,type1,arg1,type2,arg2)		\
+type fname(type1 arg1,type2 arg2)					\
+{									\
+long __res;								\
+ PRE(sname, arg1, arg2);							\
+__asm__ volatile (__syscall						\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)) : __syscall_clobber ); \
+ POST(sname, __res, arg1, arg2);							\
+return __res;								\
+}
+
+#define io_syscall3(type,fname,sname,type1,arg1,type2,arg2,type3,arg3)	\
+type fname(type1 arg1,type2 arg2,type3 arg3)				\
+{									\
+long __res;								\
+ PRE(sname, arg1, arg2, arg3);							\
+__asm__ volatile (__syscall						\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)),	\
+		  "d" ((long)(arg3)) : __syscall_clobber);		\
+ POST(sname, __res, arg1, arg2, arg3);							\
+return __res;								\
+}
+
+#define io_syscall4(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type fname (type1 arg1, type2 arg2, type3 arg3, type4 arg4)		\
+{									\
+long __res;								\
+ PRE(sname, arg1, arg2, arg3, arg4);							\
+__asm__ volatile ("movq %5,%%r10 ;" __syscall				\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"g" ((long)(arg4)) : __syscall_clobber,"r10" ); \
+ POST(sname, __res, arg1, arg2, arg3, arg4);							\
+return __res;								\
+} 
+
+#define io_syscall5(type,fname,sname,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+	  type5,arg5)							\
+type fname (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5)	\
+{									\
+long __res;								\
+ PRE(sname, arg1, arg2, arg3, arg4, arg5);							\
+__asm__ volatile ("movq %5,%%r10 ; movq %6,%%r8 ; " __syscall		\
+	: "=a" (__res)							\
+	: "0" (__NR_##sname),"D" ((long)(arg1)),"S" ((long)(arg2)),	\
+	  "d" ((long)(arg3)),"g" ((long)(arg4)),"g" ((long)(arg5)) :	\
+	__syscall_clobber,"r8","r10" );					\
+ POST(sname, __res, arg1, arg2, arg3, arg4, arg5);							\
+return __res;								\
+}
diff --git a/syscall.h b/syscall.h
new file mode 100644
index 0000000..dc3326d
--- /dev/null
+++ b/syscall.h
@@ -0,0 +1,31 @@
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#define _SYMSTR(str)	#str
+#define SYMSTR(str)	_SYMSTR(str)
+
+#define SYMVER(compat_sym, orig_sym, ver_sym)	\
+	__asm__(".symver " SYMSTR(compat_sym) "," SYMSTR(orig_sym) "@LIBAIO_" SYMSTR(ver_sym));
+
+#define DEFSYMVER(compat_sym, orig_sym, ver_sym)	\
+	__asm__(".symver " SYMSTR(compat_sym) "," SYMSTR(orig_sym) "@@LIBAIO_" SYMSTR(ver_sym));
+
+#if defined(__i386__)
+#include "syscall-i386.h"
+#elif defined(__x86_64__)
+#include "syscall-x86_64.h"
+#elif defined(__ia64__)
+#include "syscall-ia64.h"
+#elif defined(__PPC__)
+#include "syscall-ppc.h"
+#elif defined(__s390__)
+#include "syscall-s390.h"
+#elif defined(__alpha__)
+#include "syscall-alpha.h"
+#elif defined(__arm__)
+#include "syscall-arm.h"
+#elif defined(__aarch64__)
+#include "syscall-arm64.h"
+#else
+#error "add syscall-arch.h"
+#endif
diff --git a/vsys_def.h b/vsys_def.h
new file mode 100644
index 0000000..13d032e
--- /dev/null
+++ b/vsys_def.h
@@ -0,0 +1,24 @@
+/* libaio Linux async I/O interface
+   Copyright 2002 Red Hat, Inc.
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
+ */
+extern int vsys_io_setup(unsigned nr_reqs, io_context_t *ctxp);
+extern int vsys_io_destroy(io_context_t ctx);
+extern int vsys_io_submit(io_context_t ctx, long nr, struct iocb *iocbs[]);
+extern int vsys_io_cancel(io_context_t ctx, struct iocb *iocb);
+extern int vsys_io_wait(io_context_t ctx, struct iocb *iocb, const struct timespec *when);
+extern int vsys_io_getevents(io_context_t ctx_id, long nr, struct io_event *events, const struct timespec *timeout);
+