fsync.c 1.31 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1 2 3 4 5 6 7 8 9
/*
 * fsync.c
 *
 * PURPOSE
 *  Fsync handling routines for the OSTA-UDF(tm) filesystem.
 *
 * CONTACTS
 *  E-mail regarding any portion of the Linux UDF file system should be
 *  directed to the development team mailing list (run by majordomo):
Linus Torvalds's avatar
Linus Torvalds committed
10
 *      linux_udf@hpesjro.fc.hp.com
Linus Torvalds's avatar
Linus Torvalds committed
11 12 13 14 15 16 17
 *
 * COPYRIGHT
 *  This file is distributed under the terms of the GNU General Public
 *  License (GPL). Copies of the GPL can be obtained from:
 *      ftp://prep.ai.mit.edu/pub/gnu/GPL
 *  Each contributing author retains all rights to their own work.
 *
18
 *  (C) 1999-2001 Ben Fennema
Linus Torvalds's avatar
Linus Torvalds committed
19 20 21 22 23 24 25 26 27 28 29 30
 *  (C) 1999-2000 Stelias Computing Inc
 *
 * HISTORY
 *
 *  05/22/99 blf  Created.
 */

#include "udfdecl.h"

#include <linux/fs.h>
#include <linux/smp_lock.h>

31 32
static int udf_fsync_inode(struct inode *, int);

Linus Torvalds's avatar
Linus Torvalds committed
33 34 35 36 37
/*
 *	File may be NULL when we are called. Perhaps we shouldn't
 *	even pass file to fsync ?
 */

Linus Torvalds's avatar
Linus Torvalds committed
38
int udf_fsync_file(struct file * file, struct dentry *dentry, int datasync)
Linus Torvalds's avatar
Linus Torvalds committed
39 40
{
	struct inode *inode = dentry->d_inode;
Linus Torvalds's avatar
Linus Torvalds committed
41 42
	return udf_fsync_inode(inode, datasync);
}
Linus Torvalds's avatar
Linus Torvalds committed
43

44
static int udf_fsync_inode(struct inode *inode, int datasync)
Linus Torvalds's avatar
Linus Torvalds committed
45 46
{
	int err;
Linus Torvalds's avatar
Linus Torvalds committed
47

48
	err = sync_mapping_buffers(inode->i_mapping);
Linus Torvalds's avatar
Linus Torvalds committed
49 50 51 52
	if (!(inode->i_state & I_DIRTY))
		return err;
	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
		return err;
Linus Torvalds's avatar
Linus Torvalds committed
53 54 55 56

	err |= udf_sync_inode (inode);
	return err ? -EIO : 0;
}