| Boaz Harrosh | e806271 | 2008-10-27 18:37:02 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2005, 2006 |
| 3 | * Avishay Traeger (avishay@gmail.com) (avishay@il.ibm.com) |
| 4 | * Copyright (C) 2005, 2006 |
| 5 | * International Business Machines |
| 6 | * Copyright (C) 2008, 2009 |
| 7 | * Boaz Harrosh <bharrosh@panasas.com> |
| 8 | * |
| 9 | * Copyrights for code taken from ext2: |
| 10 | * Copyright (C) 1992, 1993, 1994, 1995 |
| 11 | * Remy Card (card@masi.ibp.fr) |
| 12 | * Laboratoire MASI - Institut Blaise Pascal |
| 13 | * Universite Pierre et Marie Curie (Paris VI) |
| 14 | * from |
| 15 | * linux/fs/minix/inode.c |
| 16 | * Copyright (C) 1991, 1992 Linus Torvalds |
| 17 | * |
| 18 | * This file is part of exofs. |
| 19 | * |
| 20 | * exofs is free software; you can redistribute it and/or modify |
| 21 | * it under the terms of the GNU General Public License as published by |
| 22 | * the Free Software Foundation. Since it is based on ext2, and the only |
| 23 | * valid version of GPL for the Linux kernel is version 2, the only valid |
| 24 | * version of GPL for exofs is version 2. |
| 25 | * |
| 26 | * exofs is distributed in the hope that it will be useful, |
| 27 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 28 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 29 | * GNU General Public License for more details. |
| 30 | * |
| 31 | * You should have received a copy of the GNU General Public License |
| 32 | * along with exofs; if not, write to the Free Software |
| 33 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 34 | */ |
| 35 | |
| 36 | #include <linux/buffer_head.h> |
| 37 | |
| 38 | #include "exofs.h" |
| 39 | |
| 40 | static int exofs_release_file(struct inode *inode, struct file *filp) |
| 41 | { |
| 42 | return 0; |
| 43 | } |
| 44 | |
| 45 | static int exofs_file_fsync(struct file *filp, struct dentry *dentry, |
| 46 | int datasync) |
| 47 | { |
| 48 | int ret; |
| 49 | struct address_space *mapping = filp->f_mapping; |
| 50 | |
| 51 | ret = filemap_write_and_wait(mapping); |
| 52 | if (ret) |
| 53 | return ret; |
| 54 | |
| 55 | /*Note: file_fsync below also calles sync_blockdev, which is a no-op |
| 56 | * for exofs, but other then that it does sync_inode and |
| 57 | * sync_superblock which is what we need here. |
| 58 | */ |
| 59 | return file_fsync(filp, dentry, datasync); |
| 60 | } |
| 61 | |
| 62 | static int exofs_flush(struct file *file, fl_owner_t id) |
| 63 | { |
| 64 | exofs_file_fsync(file, file->f_path.dentry, 1); |
| 65 | /* TODO: Flush the OSD target */ |
| 66 | return 0; |
| 67 | } |
| 68 | |
| 69 | const struct file_operations exofs_file_operations = { |
| 70 | .llseek = generic_file_llseek, |
| 71 | .read = do_sync_read, |
| 72 | .write = do_sync_write, |
| 73 | .aio_read = generic_file_aio_read, |
| 74 | .aio_write = generic_file_aio_write, |
| 75 | .mmap = generic_file_mmap, |
| 76 | .open = generic_file_open, |
| 77 | .release = exofs_release_file, |
| 78 | .fsync = exofs_file_fsync, |
| 79 | .flush = exofs_flush, |
| 80 | .splice_read = generic_file_splice_read, |
| 81 | .splice_write = generic_file_splice_write, |
| 82 | }; |
| 83 | |
| 84 | const struct inode_operations exofs_file_inode_operations = { |
| 85 | .truncate = exofs_truncate, |
| 86 | .setattr = exofs_setattr, |
| 87 | }; |