1 /*
2 * Copyright (C) 2005, 2006
3 * Avishay Traeger (avishay@gmail.com)
4 * Copyright (C) 2008, 2009
5 * Boaz Harrosh <ooo@electrozaur.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 #include "exofs.h"
34
exofs_release_file(struct inode * inode,struct file * filp)35 static int exofs_release_file(struct inode *inode, struct file *filp)
36 {
37 return 0;
38 }
39
40 /* exofs_file_fsync - flush the inode to disk
41 *
42 * Note, in exofs all metadata is written as part of inode, regardless.
43 * The writeout is synchronous
44 */
exofs_file_fsync(struct file * filp,loff_t start,loff_t end,int datasync)45 static int exofs_file_fsync(struct file *filp, loff_t start, loff_t end,
46 int datasync)
47 {
48 struct inode *inode = filp->f_mapping->host;
49 int ret;
50
51 ret = file_write_and_wait_range(filp, start, end);
52 if (ret)
53 return ret;
54
55 inode_lock(inode);
56 ret = sync_inode_metadata(filp->f_mapping->host, 1);
57 inode_unlock(inode);
58 return ret;
59 }
60
exofs_flush(struct file * file,fl_owner_t id)61 static int exofs_flush(struct file *file, fl_owner_t id)
62 {
63 int ret = vfs_fsync(file, 0);
64 /* TODO: Flush the OSD target */
65 return ret;
66 }
67
68 const struct file_operations exofs_file_operations = {
69 .llseek = generic_file_llseek,
70 .read_iter = generic_file_read_iter,
71 .write_iter = generic_file_write_iter,
72 .mmap = generic_file_mmap,
73 .open = generic_file_open,
74 .release = exofs_release_file,
75 .fsync = exofs_file_fsync,
76 .flush = exofs_flush,
77 .splice_read = generic_file_splice_read,
78 .splice_write = iter_file_splice_write,
79 };
80
81 const struct inode_operations exofs_file_inode_operations = {
82 .setattr = exofs_setattr,
83 };
84