| dnl # |
| dnl # 4.7 API change |
| dnl # i_mutex is changed to i_rwsem. Instead of directly using |
| dnl # i_mutex/i_rwsem, we should use inode_lock() and inode_lock_shared() |
| dnl # We test inode_lock_shared because inode_lock is introduced earlier. |
| dnl # |
| AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_LOCK], [ |
| ZFS_LINUX_TEST_SRC([inode_lock], [ |
| #include <linux/fs.h> |
| ],[ |
| struct inode *inode = NULL; |
| inode_lock_shared(inode); |
| ]) |
| ]) |
| |
| AC_DEFUN([ZFS_AC_KERNEL_INODE_LOCK], [ |
| AC_MSG_CHECKING([whether inode_lock_shared() exists]) |
| ZFS_LINUX_TEST_RESULT([inode_lock], [ |
| AC_MSG_RESULT(yes) |
| AC_DEFINE(HAVE_INODE_LOCK_SHARED, 1, [yes]) |
| ],[ |
| AC_MSG_RESULT(no) |
| ]) |
| ]) |
