Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/fs/ext3/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 | * ext3 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 | ||
871a2931 | 21 | #include <linux/quotaops.h> |
4613ad18 | 22 | #include "ext3.h" |
1da177e4 LT |
23 | #include "xattr.h" |
24 | #include "acl.h" | |
25 | ||
26 | /* | |
27 | * Called when an inode is released. Note that this is different | |
28 | * from ext3_file_open: open gets called at every open, but release | |
29 | * gets called only when /all/ the files are closed. | |
30 | */ | |
31 | static int ext3_release_file (struct inode * inode, struct file * filp) | |
32 | { | |
9df93939 | 33 | if (ext3_test_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE)) { |
f7ab34ea | 34 | filemap_flush(inode->i_mapping); |
9df93939 | 35 | ext3_clear_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE); |
f7ab34ea | 36 | } |
1da177e4 LT |
37 | /* if we are the last writer on the inode, drop the block reservation */ |
38 | if ((filp->f_mode & FMODE_WRITE) && | |
39 | (atomic_read(&inode->i_writecount) == 1)) | |
21fe3471 | 40 | { |
97461518 | 41 | mutex_lock(&EXT3_I(inode)->truncate_mutex); |
1da177e4 | 42 | ext3_discard_reservation(inode); |
97461518 | 43 | mutex_unlock(&EXT3_I(inode)->truncate_mutex); |
21fe3471 | 44 | } |
1da177e4 LT |
45 | if (is_dx(inode) && filp->private_data) |
46 | ext3_htree_free_dir_info(filp->private_data); | |
47 | ||
48 | return 0; | |
49 | } | |
50 | ||
4b6f5d20 | 51 | const struct file_operations ext3_file_operations = { |
1da177e4 | 52 | .llseek = generic_file_llseek, |
aad4f8bb | 53 | .read_iter = generic_file_read_iter, |
8174202b | 54 | .write_iter = generic_file_write_iter, |
039fd8ce | 55 | .unlocked_ioctl = ext3_ioctl, |
52a700c5 DH |
56 | #ifdef CONFIG_COMPAT |
57 | .compat_ioctl = ext3_compat_ioctl, | |
58 | #endif | |
1da177e4 | 59 | .mmap = generic_file_mmap, |
907f4554 | 60 | .open = dquot_file_open, |
1da177e4 LT |
61 | .release = ext3_release_file, |
62 | .fsync = ext3_sync_file, | |
5274f052 | 63 | .splice_read = generic_file_splice_read, |
8d020765 | 64 | .splice_write = iter_file_splice_write, |
1da177e4 LT |
65 | }; |
66 | ||
754661f1 | 67 | const struct inode_operations ext3_file_inode_operations = { |
1da177e4 LT |
68 | .setattr = ext3_setattr, |
69 | #ifdef CONFIG_EXT3_FS_XATTR | |
70 | .setxattr = generic_setxattr, | |
71 | .getxattr = generic_getxattr, | |
72 | .listxattr = ext3_listxattr, | |
73 | .removexattr = generic_removexattr, | |
74 | #endif | |
4e34e719 | 75 | .get_acl = ext3_get_acl, |
64e178a7 | 76 | .set_acl = ext3_set_acl, |
68c9d702 | 77 | .fiemap = ext3_fiemap, |
1da177e4 LT |
78 | }; |
79 |