diff options
| author |   Jan Kara <jack@suse.cz> | 2009-08-17 19:52:36 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2009-09-14 17:08:15 +0200 |
| commit | 148f948ba877f4d3cdef036b1ff6d9f68986706a (patch) | |
| tree | c07963f08bf8c2119ec00df64e4293e2e60acaa1 /include | |
| parent | vfs: Rename generic_file_aio_write_nolock (diff) | |
| download | linux-dev-148f948ba877f4d3cdef036b1ff6d9f68986706a.tar.xz linux-dev-148f948ba877f4d3cdef036b1ff6d9f68986706a.zip | |
vfs: Introduce new helpers for syncing after writing to O_SYNC file or IS_SYNC inode
Introduce new function for generic inode syncing (vfs_fsync_range) and use
it from fsync() path. Introduce also new helper for syncing after a sync
write (generic_write_sync) using the generic function.
Use these new helpers for syncing from generic VFS functions. This makes
O_SYNC writes to block devices acquire i_mutex for syncing. If we really
care about this, we can make block_fsync() drop the i_mutex and reacquire
it before it returns.
CC: Evgeniy Polyakov <zbr@ioremap.net>
CC: ocfs2-devel@oss.oracle.com
CC: Joel Becker <joel.becker@oracle.com>
CC: Felix Blyakher <felixb@sgi.com>
CC: xfs@oss.sgi.com
CC: Anton Altaparmakov <aia21@cantab.net>
CC: linux-ntfs-dev@lists.sourceforge.net
CC: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
CC: linux-ext4@vger.kernel.org
CC: tytso@mit.edu
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/fs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 6c1be3a4edea..e2c7f5167662 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2098,7 +2098,10 @@ extern int __filemap_fdatawrite_range(struct address_space *mapping, extern int filemap_fdatawrite_range(struct address_space *mapping, loff_t start, loff_t end); +extern int vfs_fsync_range(struct file *file, struct dentry *dentry, + loff_t start, loff_t end, int datasync); extern int vfs_fsync(struct file *file, struct dentry *dentry, int datasync); +extern int generic_write_sync(struct file *file, loff_t pos, loff_t count); extern void sync_supers(void); extern void emergency_sync(void); extern void emergency_remount(void); |