blob: ab7961260c49d9071444d9e28cf6dd619b5058df [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/fs/ext2/file.c
3 *
4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr)
6 * Laboratoire MASI - Institut Blaise Pascal
7 * Universite Pierre et Marie Curie (Paris VI)
8 *
9 * from
10 *
11 * linux/fs/minix/file.c
12 *
13 * Copyright (C) 1991, 1992 Linus Torvalds
14 *
15 * ext2 fs regular file handling primitives
16 *
17 * 64-bit file support on 64-bit platforms by Jakub Jelinek
18 * (jj@sunsite.ms.mff.cuni.cz)
19 */
20
21#include <linux/time.h>
22#include "ext2.h"
23#include "xattr.h"
24#include "acl.h"
25
26/*
Jan Karaa6739af2007-07-15 23:40:22 -070027 * Called when filp is released. This happens when all file descriptors
28 * for a single struct file are closed. Note that different open() calls
29 * for the same file yield different struct file structures.
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 */
31static int ext2_release_file (struct inode * inode, struct file * filp)
32{
33 if (filp->f_mode & FMODE_WRITE)
34 ext2_discard_prealloc (inode);
35 return 0;
36}
37
38/*
39 * We have mostly NULL's here: the current defaults are ok for
40 * the ext2 filesystem.
41 */
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -080042const struct file_operations ext2_file_operations = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 .llseek = generic_file_llseek,
Badari Pulavarty543ade12006-09-30 23:28:48 -070044 .read = do_sync_read,
45 .write = do_sync_write,
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 .aio_read = generic_file_aio_read,
47 .aio_write = generic_file_aio_write,
48 .ioctl = ext2_ioctl,
David Howellse322ff02006-08-29 19:06:20 +010049#ifdef CONFIG_COMPAT
50 .compat_ioctl = ext2_compat_ioctl,
51#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 .mmap = generic_file_mmap,
53 .open = generic_file_open,
54 .release = ext2_release_file,
55 .fsync = ext2_sync_file,
Jens Axboe5274f052006-03-30 15:15:30 +020056 .splice_read = generic_file_splice_read,
57 .splice_write = generic_file_splice_write,
Linus Torvalds1da177e2005-04-16 15:20:36 -070058};
59
Carsten Otte6d791252005-06-23 22:05:26 -070060#ifdef CONFIG_EXT2_FS_XIP
Arjan van de Ven4b6f5d22006-03-28 01:56:42 -080061const struct file_operations ext2_xip_file_operations = {
Carsten Otte6d791252005-06-23 22:05:26 -070062 .llseek = generic_file_llseek,
Carsten Otteeb6fe0c2005-06-23 22:05:28 -070063 .read = xip_file_read,
64 .write = xip_file_write,
Carsten Otte6d791252005-06-23 22:05:26 -070065 .ioctl = ext2_ioctl,
David Howellse322ff02006-08-29 19:06:20 +010066#ifdef CONFIG_COMPAT
67 .compat_ioctl = ext2_compat_ioctl,
68#endif
Carsten Otte6d791252005-06-23 22:05:26 -070069 .mmap = xip_file_mmap,
70 .open = generic_file_open,
71 .release = ext2_release_file,
72 .fsync = ext2_sync_file,
Carsten Otte6d791252005-06-23 22:05:26 -070073};
74#endif
75
Arjan van de Ven754661f2007-02-12 00:55:38 -080076const struct inode_operations ext2_file_inode_operations = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 .truncate = ext2_truncate,
78#ifdef CONFIG_EXT2_FS_XATTR
79 .setxattr = generic_setxattr,
80 .getxattr = generic_getxattr,
81 .listxattr = ext2_listxattr,
82 .removexattr = generic_removexattr,
83#endif
84 .setattr = ext2_setattr,
85 .permission = ext2_permission,
86};