1/* 2 * Copyright (C) 2005, 2006 3 * Avishay Traeger (avishay@gmail.com) 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#include "exofs.h" 34 35static 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 */ 45static 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 = filemap_write_and_wait_range(inode->i_mapping, start, end); 52 if (ret) 53 return ret; 54 55 mutex_lock(&inode->i_mutex); 56 ret = sync_inode_metadata(filp->f_mapping->host, 1); 57 mutex_unlock(&inode->i_mutex); 58 return ret; 59} 60 61static 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 68const struct file_operations exofs_file_operations = { 69 .llseek = generic_file_llseek, 70 .read = do_sync_read, 71 .write = do_sync_write, 72 .aio_read = generic_file_aio_read, 73 .aio_write = generic_file_aio_write, 74 .mmap = generic_file_mmap, 75 .open = generic_file_open, 76 .release = exofs_release_file, 77 .fsync = exofs_file_fsync, 78 .flush = exofs_flush, 79 .splice_read = generic_file_splice_read, 80 .splice_write = generic_file_splice_write, 81}; 82 83const struct inode_operations exofs_file_inode_operations = { 84 .setattr = exofs_setattr, 85}; 86