1/*
2 *  linux/fs/sysv/file.c
3 *
4 *  minix/file.c
5 *  Copyright (C) 1991, 1992  Linus Torvalds
6 *
7 *  coh/file.c
8 *  Copyright (C) 1993  Pascal Haible, Bruno Haible
9 *
10 *  sysv/file.c
11 *  Copyright (C) 1993  Bruno Haible
12 *
13 *  SystemV/Coherent regular file handling primitives
14 */
15
16#include <linux/fs.h>
17#include <linux/sysv_fs.h>
18
19/*
20 * We have mostly NULLs here: the current defaults are OK for
21 * the coh filesystem.
22 */
23struct file_operations sysv_file_operations = {
24	llseek:		generic_file_llseek,
25	read:		generic_file_read,
26	write:		generic_file_write,
27	mmap:		generic_file_mmap,
28	fsync:		sysv_sync_file,
29};
30
31struct inode_operations sysv_file_inode_operations = {
32	truncate:	sysv_truncate,
33};
34
35int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync)
36{
37	struct inode *inode = dentry->d_inode;
38	int err;
39
40	err = fsync_inode_buffers(inode);
41	err |= fsync_inode_data_buffers(inode);
42	if (!(inode->i_state & I_DIRTY))
43		return err;
44	if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
45		return err;
46
47	err |= sysv_sync_inode(inode);
48	return err ? -EIO : 0;
49}
50