1/*
2 *  linux/fs/ufs/file.c
3 *
4 * Copyright (C) 1998
5 * Daniel Pirkl <daniel.pirkl@email.cz>
6 * Charles University, Faculty of Mathematics and Physics
7 *
8 *  from
9 *
10 *  linux/fs/ext2/file.c
11 *
12 * Copyright (C) 1992, 1993, 1994, 1995
13 * Remy Card (card@masi.ibp.fr)
14 * Laboratoire MASI - Institut Blaise Pascal
15 * Universite Pierre et Marie Curie (Paris VI)
16 *
17 *  from
18 *
19 *  linux/fs/minix/file.c
20 *
21 *  Copyright (C) 1991, 1992  Linus Torvalds
22 *
23 *  ext2 fs regular file handling primitives
24 */
25
26#include <linux/fs.h>
27#include <linux/ufs_fs.h>
28#include <linux/buffer_head.h>	/* for sync_mapping_buffers() */
29
30static int ufs_sync_file(struct file *file, struct dentry *dentry, int datasync)
31{
32	struct inode *inode = dentry->d_inode;
33	int err;
34	int ret;
35
36	ret = sync_mapping_buffers(inode->i_mapping);
37	if (!(inode->i_state & I_DIRTY))
38		return ret;
39	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
40		return ret;
41
42	err = ufs_sync_inode(inode);
43	if (ret == 0)
44		ret = err;
45	return ret;
46}
47
48
49/*
50 * We have mostly NULL's here: the current defaults are ok for
51 * the ufs filesystem.
52 */
53
54const struct file_operations ufs_file_operations = {
55	.llseek		= generic_file_llseek,
56	.read		= do_sync_read,
57	.aio_read	= generic_file_aio_read,
58	.write		= do_sync_write,
59	.aio_write	= generic_file_aio_write,
60	.mmap		= generic_file_mmap,
61	.open           = generic_file_open,
62	.fsync		= ufs_sync_file,
63	.sendfile	= generic_file_sendfile,
64};
65