1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* linux/fs/minix/file.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
* minix regular file handling primitives
*/
#include <linux/buffer_head.h> /* for fsync_inode_buffers() */
#include "minix.h"
/*
* We have mostly NULLs here: the current defaults are OK for
* the minix filesystem.
*/
int minix_sync_file(struct file *, struct dentry *, int);
const struct file_operations minix_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
.aio_read = generic_file_aio_read,
.write = do_sync_write,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
.fsync = minix_sync_file,
.splice_read = generic_file_splice_read,
};
const struct inode_operations minix_file_inode_operations = {
.truncate = minix_truncate,
.getattr = minix_getattr,
};
int minix_sync_file(struct file * file, struct dentry *dentry, int datasync)
{
struct inode *inode = dentry->d_inode;
int err;
err = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
return err;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
return err;
err |= minix_sync_inode(inode);
return err ? -EIO : 0;
}
|
