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1 | /* |
2 | * Copyright (C) 2005, 2006 | |
27d2e149 | 3 | * Avishay Traeger (avishay@gmail.com) |
e8062719 BH |
4 | * Copyright (C) 2008, 2009 |
5 | * Boaz Harrosh <bharrosh@panasas.com> | |
6 | * | |
7 | * Copyrights for code taken from ext2: | |
8 | * Copyright (C) 1992, 1993, 1994, 1995 | |
9 | * Remy Card (card@masi.ibp.fr) | |
10 | * Laboratoire MASI - Institut Blaise Pascal | |
11 | * Universite Pierre et Marie Curie (Paris VI) | |
12 | * from | |
13 | * linux/fs/minix/inode.c | |
14 | * Copyright (C) 1991, 1992 Linus Torvalds | |
15 | * | |
16 | * This file is part of exofs. | |
17 | * | |
18 | * exofs is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License as published by | |
20 | * the Free Software Foundation. Since it is based on ext2, and the only | |
21 | * valid version of GPL for the Linux kernel is version 2, the only valid | |
22 | * version of GPL for exofs is version 2. | |
23 | * | |
24 | * exofs is distributed in the hope that it will be useful, | |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License | |
30 | * along with exofs; if not, write to the Free Software | |
31 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
32 | */ | |
33 | ||
34 | #include <linux/buffer_head.h> | |
35 | ||
36 | #include "exofs.h" | |
37 | ||
38 | static int exofs_release_file(struct inode *inode, struct file *filp) | |
39 | { | |
40 | return 0; | |
41 | } | |
42 | ||
43 | static int exofs_file_fsync(struct file *filp, struct dentry *dentry, | |
44 | int datasync) | |
45 | { | |
46 | int ret; | |
47 | struct address_space *mapping = filp->f_mapping; | |
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48 | struct inode *inode = dentry->d_inode; |
49 | struct super_block *sb; | |
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50 | |
51 | ret = filemap_write_and_wait(mapping); | |
52 | if (ret) | |
53 | return ret; | |
54 | ||
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55 | /* sync the inode attributes */ |
56 | ret = write_inode_now(inode, 1); | |
57 | ||
58 | /* This is a good place to write the sb */ | |
59 | /* TODO: Sechedule an sb-sync on create */ | |
60 | sb = inode->i_sb; | |
61 | if (sb->s_dirt) | |
62 | exofs_sync_fs(sb, 1); | |
63 | ||
64 | return ret; | |
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65 | } |
66 | ||
67 | static int exofs_flush(struct file *file, fl_owner_t id) | |
68 | { | |
69 | exofs_file_fsync(file, file->f_path.dentry, 1); | |
70 | /* TODO: Flush the OSD target */ | |
71 | return 0; | |
72 | } | |
73 | ||
74 | const struct file_operations exofs_file_operations = { | |
75 | .llseek = generic_file_llseek, | |
76 | .read = do_sync_read, | |
77 | .write = do_sync_write, | |
78 | .aio_read = generic_file_aio_read, | |
79 | .aio_write = generic_file_aio_write, | |
80 | .mmap = generic_file_mmap, | |
81 | .open = generic_file_open, | |
82 | .release = exofs_release_file, | |
83 | .fsync = exofs_file_fsync, | |
84 | .flush = exofs_flush, | |
85 | .splice_read = generic_file_splice_read, | |
86 | .splice_write = generic_file_splice_write, | |
87 | }; | |
88 | ||
89 | const struct inode_operations exofs_file_inode_operations = { | |
90 | .truncate = exofs_truncate, | |
91 | .setattr = exofs_setattr, | |
92 | }; |