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| author | Brian Behlendorf <[email protected]> | 2011-11-09 12:45:35 -0800 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2011-11-09 19:36:21 -0800 |
| commit | 0d0b523728b348b2d762fd9b27511ed9b138607b (patch) | |
| tree | 0cce0407fbb877f06e6aba098d47f27c8084324f /config | |
| parent | 12ff95ff579d0203790aff69632c7ab12ce56140 (diff) | |
Linux 3.1 compat, vfs_fsync()
Preferentially use the vfs_fsync() function. This function was
initially introduced in 2.6.29 and took three arguments. As
of 2.6.35 the dentry argument was dropped from the function.
For older kernels fall back to using file_fsync() which also
took three arguments including the dentry.
Signed-off-by: Brian Behlendorf <[email protected]>
Issue #52
Diffstat (limited to 'config')
| -rw-r--r-- | config/spl-build.m4 | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/config/spl-build.m4 b/config/spl-build.m4 index f5696b943..d0bd97cb4 100644 --- a/config/spl-build.m4 +++ b/config/spl-build.m4 @@ -68,13 +68,14 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [ SPL_AC_2ARGS_SET_FS_PWD SPL_AC_2ARGS_VFS_UNLINK SPL_AC_4ARGS_VFS_RENAME + SPL_AC_VFS_FSYNC + SPL_AC_2ARGS_VFS_FSYNC SPL_AC_FS_STRUCT_SPINLOCK SPL_AC_CRED_STRUCT SPL_AC_GROUPS_SEARCH SPL_AC_PUT_TASK_STRUCT SPL_AC_5ARGS_PROC_HANDLER SPL_AC_KVASPRINTF - SPL_AC_3ARGS_FILE_FSYNC SPL_AC_EXPORTED_RWSEM_IS_LOCKED SPL_AC_KERNEL_INVALIDATE_INODES SPL_AC_KERNEL_2ARGS_INVALIDATE_INODES @@ -1718,19 +1719,30 @@ AC_DEFUN([SPL_AC_KVASPRINTF], [ ]) dnl # +dnl # 2.6.29 API change, +dnl # vfs_fsync() funcation added, prior to this use file_fsync(). +dnl # +AC_DEFUN([SPL_AC_VFS_FSYNC], [ + SPL_CHECK_SYMBOL_EXPORT( + [vfs_fsync], + [fs/sync.c], + [AC_DEFINE(HAVE_VFS_FSYNC, 1, [vfs_fsync() is available])], + []) +]) + +dnl # dnl # 2.6.35 API change, -dnl # Unused 'struct dentry *' removed from prototype. +dnl # Unused 'struct dentry *' removed from vfs_fsync() prototype. dnl # -AC_DEFUN([SPL_AC_3ARGS_FILE_FSYNC], [ - AC_MSG_CHECKING([whether file_fsync() wants 3 args]) +AC_DEFUN([SPL_AC_2ARGS_VFS_FSYNC], [ + AC_MSG_CHECKING([whether vfs_fsync() wants 2 args]) SPL_LINUX_TRY_COMPILE([ - #include <linux/buffer_head.h> + #include <linux/fs.h> ],[ - file_fsync(NULL, NULL, 0); + vfs_fsync(NULL, 0); ],[ AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_3ARGS_FILE_FSYNC, 1, - [file_fsync() wants 3 args]) + AC_DEFINE(HAVE_2ARGS_VFS_FSYNC, 1, [vfs_fsync() wants 2 args]) ],[ AC_MSG_RESULT(no) ]) |