| /* |
| * CDDL HEADER START |
| * |
| * The contents of this file are subject to the terms of the |
| * Common Development and Distribution License (the "License"). |
| * You may not use this file except in compliance with the License. |
| * |
| * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| * or http://www.opensolaris.org/os/licensing. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * |
| * When distributing Covered Code, include this CDDL HEADER in each |
| * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| * If applicable, add the following below this CDDL HEADER, with the |
| * fields enclosed by brackets "[]" replaced with your own identifying |
| * information: Portions Copyright [yyyy] [name of copyright owner] |
| * |
| * CDDL HEADER END |
| */ |
| /* |
| * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Copyright 2011 Nexenta Systems, Inc. All rights reserved. |
| * Copyright (c) 2012, 2016 by Delphix. All rights reserved. |
| * Copyright (c) 2012, Joyent, Inc. All rights reserved. |
| */ |
| |
| #ifndef _SYS_ZFS_CONTEXT_H |
| #define _SYS_ZFS_CONTEXT_H |
| |
| #ifdef __KERNEL__ |
| |
| #include <sys/note.h> |
| #include <sys/types.h> |
| #include <sys/atomic.h> |
| #include <sys/sysmacros.h> |
| #include <sys/vmsystm.h> |
| #include <sys/condvar.h> |
| #include <sys/cmn_err.h> |
| #include <sys/kmem.h> |
| #include <sys/kmem_cache.h> |
| #include <sys/vmem.h> |
| #include <sys/taskq.h> |
| #include <sys/param.h> |
| #include <sys/kobj.h> |
| #include <sys/disp.h> |
| #include <sys/debug.h> |
| #include <sys/random.h> |
| #include <sys/strings.h> |
| #include <sys/byteorder.h> |
| #include <sys/list.h> |
| #include <sys/uio_impl.h> |
| #include <sys/time.h> |
| #include <sys/zone.h> |
| #include <sys/sdt.h> |
| #include <sys/kstat.h> |
| #include <sys/zfs_debug.h> |
| #include <sys/sysevent.h> |
| #include <sys/sysevent/eventdefs.h> |
| #include <sys/zfs_delay.h> |
| #include <sys/sunddi.h> |
| #include <sys/ctype.h> |
| #include <sys/disp.h> |
| #include <sys/trace.h> |
| #include <sys/procfs_list.h> |
| #include <linux/dcache_compat.h> |
| #include <linux/utsname_compat.h> |
| |
| #else /* _KERNEL */ |
| |
| #define _SYS_MUTEX_H |
| #define _SYS_RWLOCK_H |
| #define _SYS_CONDVAR_H |
| #define _SYS_VNODE_H |
| #define _SYS_VFS_H |
| #define _SYS_SUNDDI_H |
| #define _SYS_CALLB_H |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stddef.h> |
| #include <stdarg.h> |
| #include <fcntl.h> |
| #include <unistd.h> |
| #include <errno.h> |
| #include <string.h> |
| #include <strings.h> |
| #include <pthread.h> |
| #include <setjmp.h> |
| #include <assert.h> |
| #include <alloca.h> |
| #include <umem.h> |
| #include <limits.h> |
| #include <atomic.h> |
| #include <dirent.h> |
| #include <time.h> |
| #include <ctype.h> |
| #include <signal.h> |
| #include <sys/mman.h> |
| #include <sys/note.h> |
| #include <sys/types.h> |
| #include <sys/cred.h> |
| #include <sys/sysmacros.h> |
| #include <sys/bitmap.h> |
| #include <sys/resource.h> |
| #include <sys/byteorder.h> |
| #include <sys/list.h> |
| #include <sys/uio.h> |
| #include <sys/zfs_debug.h> |
| #include <sys/sdt.h> |
| #include <sys/kstat.h> |
| #include <sys/u8_textprep.h> |
| #include <sys/sysevent.h> |
| #include <sys/sysevent/eventdefs.h> |
| #include <sys/sunddi.h> |
| #include <sys/debug.h> |
| #include <sys/utsname.h> |
| |
| /* |
| * Stack |
| */ |
| |
| #define noinline __attribute__((noinline)) |
| #define likely(x) __builtin_expect((x), 1) |
| |
| /* |
| * Debugging |
| */ |
| |
| /* |
| * Note that we are not using the debugging levels. |
| */ |
| |
| #define CE_CONT 0 /* continuation */ |
| #define CE_NOTE 1 /* notice */ |
| #define CE_WARN 2 /* warning */ |
| #define CE_PANIC 3 /* panic */ |
| #define CE_IGNORE 4 /* print nothing */ |
| |
| /* |
| * ZFS debugging |
| */ |
| |
| extern void dprintf_setup(int *argc, char **argv); |
| |
| extern void cmn_err(int, const char *, ...); |
| extern void vcmn_err(int, const char *, va_list); |
| extern void panic(const char *, ...) __NORETURN; |
| extern void vpanic(const char *, va_list) __NORETURN; |
| |
| #define fm_panic panic |
| |
| extern int aok; |
| |
| /* |
| * DTrace SDT probes have different signatures in userland than they do in |
| * the kernel. If they're being used in kernel code, re-define them out of |
| * existence for their counterparts in libzpool. |
| * |
| * Here's an example of how to use the set-error probes in userland: |
| * zfs$target:::set-error /arg0 == EBUSY/ {stack();} |
| * |
| * Here's an example of how to use DTRACE_PROBE probes in userland: |
| * If there is a probe declared as follows: |
| * DTRACE_PROBE2(zfs__probe_name, uint64_t, blkid, dnode_t *, dn); |
| * Then you can use it as follows: |
| * zfs$target:::probe2 /copyinstr(arg0) == "zfs__probe_name"/ |
| * {printf("%u %p\n", arg1, arg2);} |
| */ |
| |
| #ifdef DTRACE_PROBE |
| #undef DTRACE_PROBE |
| #endif /* DTRACE_PROBE */ |
| #define DTRACE_PROBE(a) \ |
| ZFS_PROBE0(#a) |
| |
| #ifdef DTRACE_PROBE1 |
| #undef DTRACE_PROBE1 |
| #endif /* DTRACE_PROBE1 */ |
| #define DTRACE_PROBE1(a, b, c) \ |
| ZFS_PROBE1(#a, (unsigned long)c) |
| |
| #ifdef DTRACE_PROBE2 |
| #undef DTRACE_PROBE2 |
| #endif /* DTRACE_PROBE2 */ |
| #define DTRACE_PROBE2(a, b, c, d, e) \ |
| ZFS_PROBE2(#a, (unsigned long)c, (unsigned long)e) |
| |
| #ifdef DTRACE_PROBE3 |
| #undef DTRACE_PROBE3 |
| #endif /* DTRACE_PROBE3 */ |
| #define DTRACE_PROBE3(a, b, c, d, e, f, g) \ |
| ZFS_PROBE3(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g) |
| |
| #ifdef DTRACE_PROBE4 |
| #undef DTRACE_PROBE4 |
| #endif /* DTRACE_PROBE4 */ |
| #define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) \ |
| ZFS_PROBE4(#a, (unsigned long)c, (unsigned long)e, (unsigned long)g, \ |
| (unsigned long)i) |
| |
| /* |
| * Threads. |
| */ |
| typedef pthread_t kthread_t; |
| |
| #define TS_RUN 0x00000002 |
| #define TS_JOINABLE 0x00000004 |
| |
| #define curthread ((void *)(uintptr_t)pthread_self()) |
| #define kpreempt(x) yield() |
| #define getcomm() "unknown" |
| |
| #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ |
| zk_thread_create(func, arg, stksize, state) |
| #define thread_exit() pthread_exit(NULL) |
| #define thread_join(t) pthread_join((pthread_t)(t), NULL) |
| |
| #define newproc(f, a, cid, pri, ctp, pid) (ENOSYS) |
| |
| /* in libzpool, p0 exists only to have its address taken */ |
| typedef struct proc { |
| uintptr_t this_is_never_used_dont_dereference_it; |
| } proc_t; |
| |
| extern struct proc p0; |
| #define curproc (&p0) |
| |
| #define PS_NONE -1 |
| |
| extern kthread_t *zk_thread_create(void (*func)(void *), void *arg, |
| size_t stksize, int state); |
| |
| #define issig(why) (FALSE) |
| #define ISSIG(thr, why) (FALSE) |
| |
| #define kpreempt_disable() ((void)0) |
| #define kpreempt_enable() ((void)0) |
| #define cond_resched() sched_yield() |
| |
| /* |
| * Mutexes |
| */ |
| typedef struct kmutex { |
| pthread_mutex_t m_lock; |
| pthread_t m_owner; |
| } kmutex_t; |
| |
| #define MUTEX_DEFAULT 0 |
| #define MUTEX_NOLOCKDEP MUTEX_DEFAULT |
| #define MUTEX_HELD(mp) pthread_equal((mp)->m_owner, pthread_self()) |
| #define MUTEX_NOT_HELD(mp) !MUTEX_HELD(mp) |
| |
| extern void mutex_init(kmutex_t *mp, char *name, int type, void *cookie); |
| extern void mutex_destroy(kmutex_t *mp); |
| extern void mutex_enter(kmutex_t *mp); |
| extern void mutex_exit(kmutex_t *mp); |
| extern int mutex_tryenter(kmutex_t *mp); |
| |
| #define NESTED_SINGLE 1 |
| #define mutex_enter_nested(mp, class) mutex_enter(mp) |
| /* |
| * RW locks |
| */ |
| typedef struct krwlock { |
| pthread_rwlock_t rw_lock; |
| pthread_t rw_owner; |
| uint_t rw_readers; |
| } krwlock_t; |
| |
| typedef int krw_t; |
| |
| #define RW_READER 0 |
| #define RW_WRITER 1 |
| #define RW_DEFAULT RW_READER |
| #define RW_NOLOCKDEP RW_READER |
| |
| #define RW_READ_HELD(rw) ((rw)->rw_readers > 0) |
| #define RW_WRITE_HELD(rw) pthread_equal((rw)->rw_owner, pthread_self()) |
| #define RW_LOCK_HELD(rw) (RW_READ_HELD(rw) || RW_WRITE_HELD(rw)) |
| |
| extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); |
| extern void rw_destroy(krwlock_t *rwlp); |
| extern void rw_enter(krwlock_t *rwlp, krw_t rw); |
| extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); |
| extern int rw_tryupgrade(krwlock_t *rwlp); |
| extern void rw_exit(krwlock_t *rwlp); |
| #define rw_downgrade(rwlp) do { } while (0) |
| |
| /* |
| * Credentials |
| */ |
| extern uid_t crgetuid(cred_t *cr); |
| extern uid_t crgetruid(cred_t *cr); |
| extern gid_t crgetgid(cred_t *cr); |
| extern int crgetngroups(cred_t *cr); |
| extern gid_t *crgetgroups(cred_t *cr); |
| |
| /* |
| * Condition variables |
| */ |
| typedef pthread_cond_t kcondvar_t; |
| |
| #define CV_DEFAULT 0 |
| #define CALLOUT_FLAG_ABSOLUTE 0x2 |
| |
| extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); |
| extern void cv_destroy(kcondvar_t *cv); |
| extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); |
| extern int cv_wait_sig(kcondvar_t *cv, kmutex_t *mp); |
| extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); |
| extern clock_t cv_timedwait_hires(kcondvar_t *cvp, kmutex_t *mp, hrtime_t tim, |
| hrtime_t res, int flag); |
| extern void cv_signal(kcondvar_t *cv); |
| extern void cv_broadcast(kcondvar_t *cv); |
| |
| #define cv_timedwait_io(cv, mp, at) cv_timedwait(cv, mp, at) |
| #define cv_timedwait_sig(cv, mp, at) cv_timedwait(cv, mp, at) |
| #define cv_wait_io(cv, mp) cv_wait(cv, mp) |
| #define cv_wait_io_sig(cv, mp) cv_wait_sig(cv, mp) |
| #define cv_timedwait_sig_hires(cv, mp, t, r, f) \ |
| cv_timedwait_hires(cv, mp, t, r, f) |
| |
| /* |
| * Thread-specific data |
| */ |
| #define tsd_get(k) pthread_getspecific(k) |
| #define tsd_set(k, v) pthread_setspecific(k, v) |
| #define tsd_create(kp, d) pthread_key_create(kp, d) |
| #define tsd_destroy(kp) /* nothing */ |
| |
| /* |
| * Thread-specific data |
| */ |
| #define tsd_get(k) pthread_getspecific(k) |
| #define tsd_set(k, v) pthread_setspecific(k, v) |
| #define tsd_create(kp, d) pthread_key_create(kp, d) |
| #define tsd_destroy(kp) /* nothing */ |
| |
| /* |
| * kstat creation, installation and deletion |
| */ |
| extern kstat_t *kstat_create(const char *, int, |
| const char *, const char *, uchar_t, ulong_t, uchar_t); |
| extern void kstat_named_init(kstat_named_t *, const char *, uchar_t); |
| extern void kstat_install(kstat_t *); |
| extern void kstat_delete(kstat_t *); |
| extern void kstat_waitq_enter(kstat_io_t *); |
| extern void kstat_waitq_exit(kstat_io_t *); |
| extern void kstat_runq_enter(kstat_io_t *); |
| extern void kstat_runq_exit(kstat_io_t *); |
| extern void kstat_waitq_to_runq(kstat_io_t *); |
| extern void kstat_runq_back_to_waitq(kstat_io_t *); |
| extern void kstat_set_raw_ops(kstat_t *ksp, |
| int (*headers)(char *buf, size_t size), |
| int (*data)(char *buf, size_t size, void *data), |
| void *(*addr)(kstat_t *ksp, loff_t index)); |
| |
| /* |
| * procfs list manipulation |
| */ |
| |
| struct seq_file { }; |
| void seq_printf(struct seq_file *m, const char *fmt, ...); |
| |
| typedef struct procfs_list { |
| void *pl_private; |
| kmutex_t pl_lock; |
| list_t pl_list; |
| uint64_t pl_next_id; |
| size_t pl_node_offset; |
| } procfs_list_t; |
| |
| typedef struct procfs_list_node { |
| list_node_t pln_link; |
| uint64_t pln_id; |
| } procfs_list_node_t; |
| |
| void procfs_list_install(const char *module, |
| const char *name, |
| mode_t mode, |
| procfs_list_t *procfs_list, |
| int (*show)(struct seq_file *f, void *p), |
| int (*show_header)(struct seq_file *f), |
| int (*clear)(procfs_list_t *procfs_list), |
| size_t procfs_list_node_off); |
| void procfs_list_uninstall(procfs_list_t *procfs_list); |
| void procfs_list_destroy(procfs_list_t *procfs_list); |
| void procfs_list_add(procfs_list_t *procfs_list, void *p); |
| |
| /* |
| * Kernel memory |
| */ |
| #define KM_SLEEP UMEM_NOFAIL |
| #define KM_PUSHPAGE KM_SLEEP |
| #define KM_NOSLEEP UMEM_DEFAULT |
| #define KM_NORMALPRI 0 /* not needed with UMEM_DEFAULT */ |
| #define KMC_NODEBUG UMC_NODEBUG |
| #define KMC_KMEM 0x0 |
| #define KMC_VMEM 0x0 |
| #define kmem_alloc(_s, _f) umem_alloc(_s, _f) |
| #define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) |
| #define kmem_free(_b, _s) umem_free(_b, _s) |
| #define vmem_alloc(_s, _f) kmem_alloc(_s, _f) |
| #define vmem_zalloc(_s, _f) kmem_zalloc(_s, _f) |
| #define vmem_free(_b, _s) kmem_free(_b, _s) |
| #define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ |
| umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) |
| #define kmem_cache_destroy(_c) umem_cache_destroy(_c) |
| #define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) |
| #define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) |
| #define kmem_debugging() 0 |
| #define kmem_cache_reap_now(_c) umem_cache_reap_now(_c); |
| #define kmem_cache_set_move(_c, _cb) /* nothing */ |
| #define vmem_qcache_reap(_v) /* nothing */ |
| #define POINTER_INVALIDATE(_pp) /* nothing */ |
| #define POINTER_IS_VALID(_p) 0 |
| |
| extern vmem_t *zio_arena; |
| |
| typedef umem_cache_t kmem_cache_t; |
| |
| typedef enum kmem_cbrc { |
| KMEM_CBRC_YES, |
| KMEM_CBRC_NO, |
| KMEM_CBRC_LATER, |
| KMEM_CBRC_DONT_NEED, |
| KMEM_CBRC_DONT_KNOW |
| } kmem_cbrc_t; |
| |
| /* |
| * Task queues |
| */ |
| |
| #define TASKQ_NAMELEN 31 |
| |
| typedef uintptr_t taskqid_t; |
| typedef void (task_func_t)(void *); |
| |
| typedef struct taskq_ent { |
| struct taskq_ent *tqent_next; |
| struct taskq_ent *tqent_prev; |
| task_func_t *tqent_func; |
| void *tqent_arg; |
| uintptr_t tqent_flags; |
| } taskq_ent_t; |
| |
| typedef struct taskq { |
| char tq_name[TASKQ_NAMELEN + 1]; |
| kmutex_t tq_lock; |
| krwlock_t tq_threadlock; |
| kcondvar_t tq_dispatch_cv; |
| kcondvar_t tq_wait_cv; |
| kthread_t **tq_threadlist; |
| int tq_flags; |
| int tq_active; |
| int tq_nthreads; |
| int tq_nalloc; |
| int tq_minalloc; |
| int tq_maxalloc; |
| kcondvar_t tq_maxalloc_cv; |
| int tq_maxalloc_wait; |
| taskq_ent_t *tq_freelist; |
| taskq_ent_t tq_task; |
| } taskq_t; |
| |
| #define TQENT_FLAG_PREALLOC 0x1 /* taskq_dispatch_ent used */ |
| |
| #define TASKQ_PREPOPULATE 0x0001 |
| #define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ |
| #define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ |
| #define TASKQ_THREADS_CPU_PCT 0x0008 /* Scale # threads by # cpus */ |
| #define TASKQ_DC_BATCH 0x0010 /* Mark threads as batch */ |
| |
| #define TQ_SLEEP KM_SLEEP /* Can block for memory */ |
| #define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ |
| #define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ |
| #define TQ_FRONT 0x08 /* Queue in front */ |
| |
| #define TASKQID_INVALID ((taskqid_t)0) |
| |
| extern taskq_t *system_taskq; |
| extern taskq_t *system_delay_taskq; |
| |
| extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); |
| #define taskq_create_proc(a, b, c, d, e, p, f) \ |
| (taskq_create(a, b, c, d, e, f)) |
| #define taskq_create_sysdc(a, b, d, e, p, dc, f) \ |
| (taskq_create(a, b, maxclsyspri, d, e, f)) |
| extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); |
| extern taskqid_t taskq_dispatch_delay(taskq_t *, task_func_t, void *, uint_t, |
| clock_t); |
| extern void taskq_dispatch_ent(taskq_t *, task_func_t, void *, uint_t, |
| taskq_ent_t *); |
| extern int taskq_empty_ent(taskq_ent_t *); |
| extern void taskq_init_ent(taskq_ent_t *); |
| extern void taskq_destroy(taskq_t *); |
| extern void taskq_wait(taskq_t *); |
| extern void taskq_wait_id(taskq_t *, taskqid_t); |
| extern void taskq_wait_outstanding(taskq_t *, taskqid_t); |
| extern int taskq_member(taskq_t *, kthread_t *); |
| extern int taskq_cancel_id(taskq_t *, taskqid_t); |
| extern void system_taskq_init(void); |
| extern void system_taskq_fini(void); |
| |
| #define XVA_MAPSIZE 3 |
| #define XVA_MAGIC 0x78766174 |
| |
| /* |
| * vnodes |
| */ |
| typedef struct vnode { |
| uint64_t v_size; |
| int v_fd; |
| char *v_path; |
| int v_dump_fd; |
| } vnode_t; |
| |
| extern char *vn_dumpdir; |
| #define AV_SCANSTAMP_SZ 32 /* length of anti-virus scanstamp */ |
| |
| typedef struct xoptattr { |
| inode_timespec_t xoa_createtime; /* Create time of file */ |
| uint8_t xoa_archive; |
| uint8_t xoa_system; |
| uint8_t xoa_readonly; |
| uint8_t xoa_hidden; |
| uint8_t xoa_nounlink; |
| uint8_t xoa_immutable; |
| uint8_t xoa_appendonly; |
| uint8_t xoa_nodump; |
| uint8_t xoa_settable; |
| uint8_t xoa_opaque; |
| uint8_t xoa_av_quarantined; |
| uint8_t xoa_av_modified; |
| uint8_t xoa_av_scanstamp[AV_SCANSTAMP_SZ]; |
| uint8_t xoa_reparse; |
| uint8_t xoa_offline; |
| uint8_t xoa_sparse; |
| } xoptattr_t; |
| |
| typedef struct vattr { |
| uint_t va_mask; /* bit-mask of attributes */ |
| u_offset_t va_size; /* file size in bytes */ |
| } vattr_t; |
| |
| |
| typedef struct xvattr { |
| vattr_t xva_vattr; /* Embedded vattr structure */ |
| uint32_t xva_magic; /* Magic Number */ |
| uint32_t xva_mapsize; /* Size of attr bitmap (32-bit words) */ |
| uint32_t *xva_rtnattrmapp; /* Ptr to xva_rtnattrmap[] */ |
| uint32_t xva_reqattrmap[XVA_MAPSIZE]; /* Requested attrs */ |
| uint32_t xva_rtnattrmap[XVA_MAPSIZE]; /* Returned attrs */ |
| xoptattr_t xva_xoptattrs; /* Optional attributes */ |
| } xvattr_t; |
| |
| typedef struct vsecattr { |
| uint_t vsa_mask; /* See below */ |
| int vsa_aclcnt; /* ACL entry count */ |
| void *vsa_aclentp; /* pointer to ACL entries */ |
| int vsa_dfaclcnt; /* default ACL entry count */ |
| void *vsa_dfaclentp; /* pointer to default ACL entries */ |
| size_t vsa_aclentsz; /* ACE size in bytes of vsa_aclentp */ |
| } vsecattr_t; |
| |
| #define AT_TYPE 0x00001 |
| #define AT_MODE 0x00002 |
| #define AT_UID 0x00004 |
| #define AT_GID 0x00008 |
| #define AT_FSID 0x00010 |
| #define AT_NODEID 0x00020 |
| #define AT_NLINK 0x00040 |
| #define AT_SIZE 0x00080 |
| #define AT_ATIME 0x00100 |
| #define AT_MTIME 0x00200 |
| #define AT_CTIME 0x00400 |
| #define AT_RDEV 0x00800 |
| #define AT_BLKSIZE 0x01000 |
| #define AT_NBLOCKS 0x02000 |
| #define AT_SEQ 0x08000 |
| #define AT_XVATTR 0x10000 |
| |
| #define CRCREAT 0 |
| |
| #define F_FREESP 11 |
| |
| extern int fop_getattr(vnode_t *vp, vattr_t *vap); |
| |
| #define VOP_CLOSE(vp, f, c, o, cr, ct) vn_close(vp) |
| #define VOP_PUTPAGE(vp, of, sz, fl, cr, ct) 0 |
| #define VOP_GETATTR(vp, vap, fl, cr, ct) fop_getattr((vp), (vap)); |
| |
| #define VOP_FSYNC(vp, f, cr, ct) fsync((vp)->v_fd) |
| |
| #if defined(HAVE_FILE_FALLOCATE) && \ |
| defined(FALLOC_FL_PUNCH_HOLE) && \ |
| defined(FALLOC_FL_KEEP_SIZE) |
| #define VOP_SPACE(vp, cmd, flck, fl, off, cr, ct) \ |
| fallocate((vp)->v_fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, \ |
| (flck)->l_start, (flck)->l_len) |
| #else |
| #define VOP_SPACE(vp, cmd, flck, fl, off, cr, ct) (0) |
| #endif |
| |
| #define VN_RELE(vp) vn_close(vp) |
| |
| extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, |
| int x2, int x3); |
| extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, |
| int x2, int x3, vnode_t *vp, int fd); |
| extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, |
| offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); |
| extern void vn_close(vnode_t *vp); |
| |
| #define vn_remove(path, x1, x2) remove(path) |
| #define vn_rename(from, to, seg) rename((from), (to)) |
| #define vn_is_readonly(vp) B_FALSE |
| |
| extern vnode_t *rootdir; |
| |
| #include <sys/file.h> /* for FREAD, FWRITE, etc */ |
| |
| /* |
| * Random stuff |
| */ |
| #define ddi_get_lbolt() (gethrtime() >> 23) |
| #define ddi_get_lbolt64() (gethrtime() >> 23) |
| #define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ |
| |
| #define ddi_time_before(a, b) (a < b) |
| #define ddi_time_after(a, b) ddi_time_before(b, a) |
| #define ddi_time_before_eq(a, b) (!ddi_time_after(a, b)) |
| #define ddi_time_after_eq(a, b) ddi_time_before_eq(b, a) |
| |
| #define ddi_time_before64(a, b) (a < b) |
| #define ddi_time_after64(a, b) ddi_time_before64(b, a) |
| #define ddi_time_before_eq64(a, b) (!ddi_time_after64(a, b)) |
| #define ddi_time_after_eq64(a, b) ddi_time_before_eq64(b, a) |
| |
| extern void delay(clock_t ticks); |
| |
| #define SEC_TO_TICK(sec) ((sec) * hz) |
| #define MSEC_TO_TICK(msec) ((msec) / (MILLISEC / hz)) |
| #define USEC_TO_TICK(usec) ((usec) / (MICROSEC / hz)) |
| #define NSEC_TO_TICK(usec) ((usec) / (NANOSEC / hz)) |
| |
| #define max_ncpus 64 |
| #define boot_ncpus (sysconf(_SC_NPROCESSORS_ONLN)) |
| |
| /* |
| * Process priorities as defined by setpriority(2) and getpriority(2). |
| */ |
| #define minclsyspri 19 |
| #define maxclsyspri -20 |
| #define defclsyspri 0 |
| |
| #define CPU_SEQID ((uintptr_t)pthread_self() & (max_ncpus - 1)) |
| |
| #define kcred NULL |
| #define CRED() NULL |
| |
| #define ptob(x) ((x) * PAGESIZE) |
| |
| #define NN_DIVISOR_1000 (1U << 0) |
| #define NN_NUMBUF_SZ (6) |
| |
| extern uint64_t physmem; |
| extern char *random_path; |
| extern char *urandom_path; |
| |
| extern int highbit64(uint64_t i); |
| extern int lowbit64(uint64_t i); |
| extern int random_get_bytes(uint8_t *ptr, size_t len); |
| extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); |
| |
| extern void kernel_init(int); |
| extern void kernel_fini(void); |
| extern void random_init(void); |
| extern void random_fini(void); |
| |
| struct spa; |
| extern void show_pool_stats(struct spa *); |
| extern int set_global_var(char *arg); |
| |
| typedef struct callb_cpr { |
| kmutex_t *cc_lockp; |
| } callb_cpr_t; |
| |
| #define CALLB_CPR_INIT(cp, lockp, func, name) { \ |
| (cp)->cc_lockp = lockp; \ |
| } |
| |
| #define CALLB_CPR_SAFE_BEGIN(cp) { \ |
| ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
| } |
| |
| #define CALLB_CPR_SAFE_END(cp, lockp) { \ |
| ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
| } |
| |
| #define CALLB_CPR_EXIT(cp) { \ |
| ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ |
| mutex_exit((cp)->cc_lockp); \ |
| } |
| |
| #define zone_dataset_visible(x, y) (1) |
| #define INGLOBALZONE(z) (1) |
| extern uint32_t zone_get_hostid(void *zonep); |
| |
| extern char *kmem_vasprintf(const char *fmt, va_list adx); |
| extern char *kmem_asprintf(const char *fmt, ...); |
| #define strfree(str) kmem_free((str), strlen(str) + 1) |
| |
| /* |
| * Hostname information |
| */ |
| extern char hw_serial[]; /* for userland-emulated hostid access */ |
| extern int ddi_strtoul(const char *str, char **nptr, int base, |
| unsigned long *result); |
| |
| extern int ddi_strtoull(const char *str, char **nptr, int base, |
| u_longlong_t *result); |
| |
| typedef struct utsname utsname_t; |
| extern utsname_t *utsname(void); |
| |
| /* ZFS Boot Related stuff. */ |
| |
| struct _buf { |
| intptr_t _fd; |
| }; |
| |
| struct bootstat { |
| uint64_t st_size; |
| }; |
| |
| typedef struct ace_object { |
| uid_t a_who; |
| uint32_t a_access_mask; |
| uint16_t a_flags; |
| uint16_t a_type; |
| uint8_t a_obj_type[16]; |
| uint8_t a_inherit_obj_type[16]; |
| } ace_object_t; |
| |
| |
| #define ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE 0x05 |
| #define ACE_ACCESS_DENIED_OBJECT_ACE_TYPE 0x06 |
| #define ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE 0x07 |
| #define ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE 0x08 |
| |
| extern struct _buf *kobj_open_file(char *name); |
| extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, |
| unsigned off); |
| extern void kobj_close_file(struct _buf *file); |
| extern int kobj_get_filesize(struct _buf *file, uint64_t *size); |
| extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); |
| extern int zfs_secpolicy_rename_perms(const char *from, const char *to, |
| cred_t *cr); |
| extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); |
| extern int secpolicy_zfs(const cred_t *cr); |
| extern zoneid_t getzoneid(void); |
| |
| /* SID stuff */ |
| typedef struct ksiddomain { |
| uint_t kd_ref; |
| uint_t kd_len; |
| char *kd_name; |
| } ksiddomain_t; |
| |
| ksiddomain_t *ksid_lookupdomain(const char *); |
| void ksiddomain_rele(ksiddomain_t *); |
| |
| #define DDI_SLEEP KM_SLEEP |
| #define ddi_log_sysevent(_a, _b, _c, _d, _e, _f, _g) \ |
| sysevent_post_event(_c, _d, _b, "libzpool", _e, _f) |
| |
| #define zfs_sleep_until(wakeup) \ |
| do { \ |
| hrtime_t delta = wakeup - gethrtime(); \ |
| struct timespec ts; \ |
| ts.tv_sec = delta / NANOSEC; \ |
| ts.tv_nsec = delta % NANOSEC; \ |
| (void) nanosleep(&ts, NULL); \ |
| } while (0) |
| |
| typedef int fstrans_cookie_t; |
| |
| extern fstrans_cookie_t spl_fstrans_mark(void); |
| extern void spl_fstrans_unmark(fstrans_cookie_t); |
| extern int __spl_pf_fstrans_check(void); |
| extern int kmem_cache_reap_active(void); |
| |
| #define ____cacheline_aligned |
| |
| #endif /* _KERNEL */ |
| #endif /* _SYS_ZFS_CONTEXT_H */ |