blob: 625ef17c6f83122139dda3b675b3a41486df40f3 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include <linux/fs.h>
Evgeniy Dushistov577a8272006-06-25 05:47:30 -070027#include <linux/buffer_head.h> /* for sync_mapping_buffers() */
28
Mike Frysingere5420592008-02-08 04:21:31 -080029#include "ufs_fs.h"
Christoph Hellwigbcd6d4e2007-10-16 23:26:51 -070030#include "ufs.h"
31
32
Evgeniy Dushistov577a8272006-06-25 05:47:30 -070033static int ufs_sync_file(struct file *file, struct dentry *dentry, int datasync)
34{
35 struct inode *inode = dentry->d_inode;
36 int err;
37 int ret;
38
39 ret = sync_mapping_buffers(inode->i_mapping);
40 if (!(inode->i_state & I_DIRTY))
41 return ret;
42 if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
43 return ret;
44
45 err = ufs_sync_inode(inode);
46 if (ret == 0)
47 ret = err;
48 return ret;
49}
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051
52/*
53 * We have mostly NULL's here: the current defaults are ok for
54 * the ufs filesystem.
55 */
56
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -080057const struct file_operations ufs_file_operations = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 .llseek = generic_file_llseek,
Badari Pulavarty543ade12006-09-30 23:28:48 -070059 .read = do_sync_read,
60 .aio_read = generic_file_aio_read,
61 .write = do_sync_write,
62 .aio_write = generic_file_aio_write,
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 .mmap = generic_file_mmap,
64 .open = generic_file_open,
Evgeniy Dushistov577a8272006-06-25 05:47:30 -070065 .fsync = ufs_sync_file,
Jens Axboe5ffc4ef2007-06-01 11:49:19 +020066 .splice_read = generic_file_splice_read,
Linus Torvalds1da177e2005-04-16 15:20:36 -070067};