2 * linux/fs/ext2/fsync.c
4 * Copyright (C) 1993 Stephen Tweedie (sct@dcs.ed.ac.uk)
6 * Copyright (C) 1992 Remy Card (card@masi.ibp.fr)
7 * Laboratoire MASI - Institut Blaise Pascal
8 * Universite Pierre et Marie Curie (Paris VI)
10 * linux/fs/minix/truncate.c Copyright (C) 1991, 1992 Linus Torvalds
12 * ext2fs fsync primitive
14 * Big-endian to little-endian byte-swapping/bitmaps by
15 * David S. Miller (davem@caip.rutgers.edu), 1995
17 * Removed unnecessary code duplication for little endian machines
18 * and excessive __inline__s.
21 * Major simplications and cleanup - we only need to do the metadata, because
22 * we can depend on generic_block_fdatasync() to sync the data blocks.
26 #include <linux/ext2_fs.h>
27 #include <linux/locks.h>
28 #include <linux/smp_lock.h>
32 * File may be NULL when we are called. Perhaps we shouldn't
33 * even pass file to fsync ?
36 int ext2_sync_file(struct file
* file
, struct dentry
*dentry
, int datasync
)
38 struct inode
*inode
= dentry
->d_inode
;
39 return ext2_fsync_inode(inode
, datasync
);
42 int ext2_fsync_inode(struct inode
*inode
, int datasync
)
46 err
= fsync_inode_buffers(inode
);
47 if (!(inode
->i_state
& I_DIRTY
))
49 if (datasync
&& !(inode
->i_state
& I_DIRTY_DATASYNC
))
52 err
|= ext2_sync_inode(inode
);
53 return err
? -EIO
: 0;