Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1 | /* -*- mode: c; c-basic-offset: 8; -*- |
| 2 | * vim: noexpandtab sw=8 ts=8 sts=0: |
| 3 | * |
| 4 | * super.c |
| 5 | * |
| 6 | * load/unload driver, mount/dismount volumes |
| 7 | * |
| 8 | * Copyright (C) 2002, 2004 Oracle. All rights reserved. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU General Public |
| 12 | * License as published by the Free Software Foundation; either |
| 13 | * version 2 of the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public |
| 21 | * License along with this program; if not, write to the |
| 22 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 23 | * Boston, MA 021110-1307, USA. |
| 24 | */ |
| 25 | |
| 26 | #include <linux/module.h> |
| 27 | #include <linux/fs.h> |
| 28 | #include <linux/types.h> |
| 29 | #include <linux/slab.h> |
| 30 | #include <linux/highmem.h> |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 31 | #include <linux/init.h> |
| 32 | #include <linux/random.h> |
| 33 | #include <linux/statfs.h> |
| 34 | #include <linux/moduleparam.h> |
| 35 | #include <linux/blkdev.h> |
| 36 | #include <linux/socket.h> |
| 37 | #include <linux/inet.h> |
| 38 | #include <linux/parser.h> |
| 39 | #include <linux/crc32.h> |
| 40 | #include <linux/debugfs.h> |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 41 | #include <linux/mount.h> |
Joel Becker | 6953b4c | 2008-01-29 16:59:56 -0800 | [diff] [blame] | 42 | #include <linux/seq_file.h> |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 43 | #include <linux/quotaops.h> |
Dan Magenheimer | 1cfd8bd | 2011-05-26 10:02:08 -0600 | [diff] [blame] | 44 | #include <linux/cleancache.h> |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 45 | |
Wengang Wang | 80a9a84 | 2011-02-21 11:13:14 +0800 | [diff] [blame] | 46 | #define CREATE_TRACE_POINTS |
| 47 | #include "ocfs2_trace.h" |
| 48 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 49 | #include <cluster/masklog.h> |
| 50 | |
| 51 | #include "ocfs2.h" |
| 52 | |
| 53 | /* this should be the only file to include a version 1 header */ |
| 54 | #include "ocfs1_fs_compat.h" |
| 55 | |
| 56 | #include "alloc.h" |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 57 | #include "blockcheck.h" |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 58 | #include "dlmglue.h" |
| 59 | #include "export.h" |
| 60 | #include "extent_map.h" |
| 61 | #include "heartbeat.h" |
| 62 | #include "inode.h" |
| 63 | #include "journal.h" |
| 64 | #include "localalloc.h" |
| 65 | #include "namei.h" |
| 66 | #include "slot_map.h" |
| 67 | #include "super.h" |
| 68 | #include "sysfile.h" |
| 69 | #include "uptodate.h" |
| 70 | #include "ver.h" |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 71 | #include "xattr.h" |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 72 | #include "quota.h" |
Tao Ma | 374a263 | 2009-08-24 11:13:37 +0800 | [diff] [blame] | 73 | #include "refcounttree.h" |
Tiger Yang | b89c542 | 2010-01-25 14:11:06 +0800 | [diff] [blame] | 74 | #include "suballoc.h" |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 75 | |
| 76 | #include "buffer_head_io.h" |
| 77 | |
Christoph Lameter | e18b890 | 2006-12-06 20:33:20 -0800 | [diff] [blame] | 78 | static struct kmem_cache *ocfs2_inode_cachep = NULL; |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 79 | struct kmem_cache *ocfs2_dquot_cachep; |
| 80 | struct kmem_cache *ocfs2_qf_chunk_cachep; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 81 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 82 | /* OCFS2 needs to schedule several different types of work which |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 83 | * require cluster locking, disk I/O, recovery waits, etc. Since these |
| 84 | * types of work tend to be heavy we avoid using the kernel events |
| 85 | * workqueue and schedule on our own. */ |
| 86 | struct workqueue_struct *ocfs2_wq = NULL; |
| 87 | |
| 88 | static struct dentry *ocfs2_debugfs_root = NULL; |
| 89 | |
| 90 | MODULE_AUTHOR("Oracle"); |
| 91 | MODULE_LICENSE("GPL"); |
| 92 | |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 93 | struct mount_options |
| 94 | { |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 95 | unsigned long commit_interval; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 96 | unsigned long mount_opt; |
| 97 | unsigned int atime_quantum; |
| 98 | signed short slot; |
Mark Fasheh | 73c8a80 | 2010-04-05 18:17:13 -0700 | [diff] [blame] | 99 | int localalloc_opt; |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 100 | unsigned int resv_level; |
Mark Fasheh | 83f9231 | 2010-04-05 18:17:16 -0700 | [diff] [blame] | 101 | int dir_resv_level; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 102 | char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 103 | }; |
| 104 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 105 | static int ocfs2_parse_options(struct super_block *sb, char *options, |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 106 | struct mount_options *mopt, |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 107 | int is_remount); |
Jan Kara | 5297aad | 2009-10-15 14:54:04 +0200 | [diff] [blame] | 108 | static int ocfs2_check_set_options(struct super_block *sb, |
| 109 | struct mount_options *options); |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 110 | static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 111 | static void ocfs2_put_super(struct super_block *sb); |
| 112 | static int ocfs2_mount_volume(struct super_block *sb); |
| 113 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data); |
| 114 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); |
| 115 | static int ocfs2_initialize_mem_caches(void); |
| 116 | static void ocfs2_free_mem_caches(void); |
| 117 | static void ocfs2_delete_osb(struct ocfs2_super *osb); |
| 118 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 119 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 120 | |
| 121 | static int ocfs2_sync_fs(struct super_block *sb, int wait); |
| 122 | |
| 123 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); |
| 124 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 125 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 126 | static int ocfs2_check_volume(struct ocfs2_super *osb); |
| 127 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, |
| 128 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 129 | u32 sectsize, |
| 130 | struct ocfs2_blockcheck_stats *stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 131 | static int ocfs2_initialize_super(struct super_block *sb, |
| 132 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 133 | int sector_size, |
| 134 | struct ocfs2_blockcheck_stats *stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 135 | static int ocfs2_get_sector(struct super_block *sb, |
| 136 | struct buffer_head **bh, |
| 137 | int block, |
| 138 | int sect_size); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 139 | static struct inode *ocfs2_alloc_inode(struct super_block *sb); |
| 140 | static void ocfs2_destroy_inode(struct inode *inode); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 141 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); |
| 142 | static int ocfs2_enable_quotas(struct ocfs2_super *osb); |
| 143 | static void ocfs2_disable_quotas(struct ocfs2_super *osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 144 | |
Josef 'Jeff' Sipek | ee9b6d6 | 2007-02-12 00:55:41 -0800 | [diff] [blame] | 145 | static const struct super_operations ocfs2_sops = { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 146 | .statfs = ocfs2_statfs, |
| 147 | .alloc_inode = ocfs2_alloc_inode, |
| 148 | .destroy_inode = ocfs2_destroy_inode, |
| 149 | .drop_inode = ocfs2_drop_inode, |
Al Viro | 066d92d | 2010-06-08 21:28:10 -0400 | [diff] [blame] | 150 | .evict_inode = ocfs2_evict_inode, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 151 | .sync_fs = ocfs2_sync_fs, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 152 | .put_super = ocfs2_put_super, |
| 153 | .remount_fs = ocfs2_remount, |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 154 | .show_options = ocfs2_show_options, |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 155 | .quota_read = ocfs2_quota_read, |
| 156 | .quota_write = ocfs2_quota_write, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 157 | }; |
| 158 | |
| 159 | enum { |
| 160 | Opt_barrier, |
| 161 | Opt_err_panic, |
| 162 | Opt_err_ro, |
| 163 | Opt_intr, |
| 164 | Opt_nointr, |
| 165 | Opt_hb_none, |
| 166 | Opt_hb_local, |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 167 | Opt_hb_global, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 168 | Opt_data_ordered, |
| 169 | Opt_data_writeback, |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 170 | Opt_atime_quantum, |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 171 | Opt_slot, |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 172 | Opt_commit, |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 173 | Opt_localalloc, |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 174 | Opt_localflocks, |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 175 | Opt_stack, |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 176 | Opt_user_xattr, |
| 177 | Opt_nouser_xattr, |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 178 | Opt_inode64, |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 179 | Opt_acl, |
| 180 | Opt_noacl, |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 181 | Opt_usrquota, |
| 182 | Opt_grpquota, |
Tristan Ye | 7bdb0d1 | 2010-10-11 16:46:39 +0800 | [diff] [blame] | 183 | Opt_coherency_buffered, |
| 184 | Opt_coherency_full, |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 185 | Opt_resv_level, |
Mark Fasheh | 83f9231 | 2010-04-05 18:17:16 -0700 | [diff] [blame] | 186 | Opt_dir_resv_level, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 187 | Opt_err, |
| 188 | }; |
| 189 | |
Steven Whitehouse | a447c09 | 2008-10-13 10:46:57 +0100 | [diff] [blame] | 190 | static const match_table_t tokens = { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 191 | {Opt_barrier, "barrier=%u"}, |
| 192 | {Opt_err_panic, "errors=panic"}, |
| 193 | {Opt_err_ro, "errors=remount-ro"}, |
| 194 | {Opt_intr, "intr"}, |
| 195 | {Opt_nointr, "nointr"}, |
| 196 | {Opt_hb_none, OCFS2_HB_NONE}, |
| 197 | {Opt_hb_local, OCFS2_HB_LOCAL}, |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 198 | {Opt_hb_global, OCFS2_HB_GLOBAL}, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 199 | {Opt_data_ordered, "data=ordered"}, |
| 200 | {Opt_data_writeback, "data=writeback"}, |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 201 | {Opt_atime_quantum, "atime_quantum=%u"}, |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 202 | {Opt_slot, "preferred_slot=%u"}, |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 203 | {Opt_commit, "commit=%u"}, |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 204 | {Opt_localalloc, "localalloc=%d"}, |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 205 | {Opt_localflocks, "localflocks"}, |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 206 | {Opt_stack, "cluster_stack=%s"}, |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 207 | {Opt_user_xattr, "user_xattr"}, |
| 208 | {Opt_nouser_xattr, "nouser_xattr"}, |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 209 | {Opt_inode64, "inode64"}, |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 210 | {Opt_acl, "acl"}, |
| 211 | {Opt_noacl, "noacl"}, |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 212 | {Opt_usrquota, "usrquota"}, |
| 213 | {Opt_grpquota, "grpquota"}, |
Tristan Ye | 7bdb0d1 | 2010-10-11 16:46:39 +0800 | [diff] [blame] | 214 | {Opt_coherency_buffered, "coherency=buffered"}, |
| 215 | {Opt_coherency_full, "coherency=full"}, |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 216 | {Opt_resv_level, "resv_level=%u"}, |
Mark Fasheh | 83f9231 | 2010-04-05 18:17:16 -0700 | [diff] [blame] | 217 | {Opt_dir_resv_level, "dir_resv_level=%u"}, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 218 | {Opt_err, NULL} |
| 219 | }; |
| 220 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 221 | #ifdef CONFIG_DEBUG_FS |
| 222 | static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) |
| 223 | { |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 224 | struct ocfs2_cluster_connection *cconn = osb->cconn; |
| 225 | struct ocfs2_recovery_map *rm = osb->recovery_map; |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 226 | struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; |
| 227 | int i, out = 0; |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 228 | |
| 229 | out += snprintf(buf + out, len - out, |
| 230 | "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", |
| 231 | "Device", osb->dev_str, osb->uuid_str, |
| 232 | osb->fs_generation, osb->vol_label); |
| 233 | |
| 234 | out += snprintf(buf + out, len - out, |
| 235 | "%10s => State: %d Flags: 0x%lX\n", "Volume", |
| 236 | atomic_read(&osb->vol_state), osb->osb_flags); |
| 237 | |
| 238 | out += snprintf(buf + out, len - out, |
| 239 | "%10s => Block: %lu Cluster: %d\n", "Sizes", |
| 240 | osb->sb->s_blocksize, osb->s_clustersize); |
| 241 | |
| 242 | out += snprintf(buf + out, len - out, |
| 243 | "%10s => Compat: 0x%X Incompat: 0x%X " |
| 244 | "ROcompat: 0x%X\n", |
| 245 | "Features", osb->s_feature_compat, |
| 246 | osb->s_feature_incompat, osb->s_feature_ro_compat); |
| 247 | |
| 248 | out += snprintf(buf + out, len - out, |
| 249 | "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", |
| 250 | osb->s_mount_opt, osb->s_atime_quantum); |
| 251 | |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 252 | if (cconn) { |
| 253 | out += snprintf(buf + out, len - out, |
| 254 | "%10s => Stack: %s Name: %*s " |
| 255 | "Version: %d.%d\n", "Cluster", |
| 256 | (*osb->osb_cluster_stack == '\0' ? |
| 257 | "o2cb" : osb->osb_cluster_stack), |
| 258 | cconn->cc_namelen, cconn->cc_name, |
| 259 | cconn->cc_version.pv_major, |
| 260 | cconn->cc_version.pv_minor); |
| 261 | } |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 262 | |
| 263 | spin_lock(&osb->dc_task_lock); |
| 264 | out += snprintf(buf + out, len - out, |
| 265 | "%10s => Pid: %d Count: %lu WakeSeq: %lu " |
| 266 | "WorkSeq: %lu\n", "DownCnvt", |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 267 | (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), |
| 268 | osb->blocked_lock_count, osb->dc_wake_sequence, |
| 269 | osb->dc_work_sequence); |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 270 | spin_unlock(&osb->dc_task_lock); |
| 271 | |
| 272 | spin_lock(&osb->osb_lock); |
| 273 | out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", |
| 274 | "Recovery", |
| 275 | (osb->recovery_thread_task ? |
| 276 | task_pid_nr(osb->recovery_thread_task) : -1)); |
| 277 | if (rm->rm_used == 0) |
| 278 | out += snprintf(buf + out, len - out, " None\n"); |
| 279 | else { |
| 280 | for (i = 0; i < rm->rm_used; i++) |
| 281 | out += snprintf(buf + out, len - out, " %d", |
| 282 | rm->rm_entries[i]); |
| 283 | out += snprintf(buf + out, len - out, "\n"); |
| 284 | } |
| 285 | spin_unlock(&osb->osb_lock); |
| 286 | |
| 287 | out += snprintf(buf + out, len - out, |
| 288 | "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 289 | (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), |
| 290 | osb->osb_commit_interval, |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 291 | atomic_read(&osb->needs_checkpoint)); |
| 292 | |
| 293 | out += snprintf(buf + out, len - out, |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 294 | "%10s => State: %d TxnId: %lu NumTxns: %d\n", |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 295 | "Journal", osb->journal->j_state, |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 296 | osb->journal->j_trans_id, |
| 297 | atomic_read(&osb->journal->j_num_trans)); |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 298 | |
| 299 | out += snprintf(buf + out, len - out, |
| 300 | "%10s => GlobalAllocs: %d LocalAllocs: %d " |
| 301 | "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", |
| 302 | "Stats", |
| 303 | atomic_read(&osb->alloc_stats.bitmap_data), |
| 304 | atomic_read(&osb->alloc_stats.local_data), |
| 305 | atomic_read(&osb->alloc_stats.bg_allocs), |
| 306 | atomic_read(&osb->alloc_stats.moves), |
| 307 | atomic_read(&osb->alloc_stats.bg_extends)); |
| 308 | |
| 309 | out += snprintf(buf + out, len - out, |
| 310 | "%10s => State: %u Descriptor: %llu Size: %u bits " |
| 311 | "Default: %u bits\n", |
| 312 | "LocalAlloc", osb->local_alloc_state, |
| 313 | (unsigned long long)osb->la_last_gd, |
| 314 | osb->local_alloc_bits, osb->local_alloc_default_bits); |
| 315 | |
| 316 | spin_lock(&osb->osb_lock); |
| 317 | out += snprintf(buf + out, len - out, |
Tiger Yang | b89c542 | 2010-01-25 14:11:06 +0800 | [diff] [blame] | 318 | "%10s => InodeSlot: %d StolenInodes: %d, " |
| 319 | "MetaSlot: %d StolenMeta: %d\n", "Steal", |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 320 | osb->s_inode_steal_slot, |
Tiger Yang | b89c542 | 2010-01-25 14:11:06 +0800 | [diff] [blame] | 321 | atomic_read(&osb->s_num_inodes_stolen), |
| 322 | osb->s_meta_steal_slot, |
| 323 | atomic_read(&osb->s_num_meta_stolen)); |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 324 | spin_unlock(&osb->osb_lock); |
| 325 | |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 326 | out += snprintf(buf + out, len - out, "OrphanScan => "); |
| 327 | out += snprintf(buf + out, len - out, "Local: %u Global: %u ", |
| 328 | os->os_count, os->os_seqno); |
| 329 | out += snprintf(buf + out, len - out, " Last Scan: "); |
| 330 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) |
| 331 | out += snprintf(buf + out, len - out, "Disabled\n"); |
| 332 | else |
| 333 | out += snprintf(buf + out, len - out, "%lu seconds ago\n", |
| 334 | (get_seconds() - os->os_scantime.tv_sec)); |
| 335 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 336 | out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", |
| 337 | "Slots", "Num", "RecoGen"); |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 338 | for (i = 0; i < osb->max_slots; ++i) { |
| 339 | out += snprintf(buf + out, len - out, |
| 340 | "%10s %c %3d %10d\n", |
| 341 | " ", |
| 342 | (i == osb->slot_num ? '*' : ' '), |
| 343 | i, osb->slot_recovery_generations[i]); |
| 344 | } |
| 345 | |
| 346 | return out; |
| 347 | } |
| 348 | |
| 349 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) |
| 350 | { |
| 351 | struct ocfs2_super *osb = inode->i_private; |
| 352 | char *buf = NULL; |
| 353 | |
| 354 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
| 355 | if (!buf) |
| 356 | goto bail; |
| 357 | |
| 358 | i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); |
| 359 | |
| 360 | file->private_data = buf; |
| 361 | |
| 362 | return 0; |
| 363 | bail: |
| 364 | return -ENOMEM; |
| 365 | } |
| 366 | |
| 367 | static int ocfs2_debug_release(struct inode *inode, struct file *file) |
| 368 | { |
| 369 | kfree(file->private_data); |
| 370 | return 0; |
| 371 | } |
| 372 | |
| 373 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, |
| 374 | size_t nbytes, loff_t *ppos) |
| 375 | { |
| 376 | return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, |
| 377 | i_size_read(file->f_mapping->host)); |
| 378 | } |
| 379 | #else |
| 380 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) |
| 381 | { |
| 382 | return 0; |
| 383 | } |
| 384 | static int ocfs2_debug_release(struct inode *inode, struct file *file) |
| 385 | { |
| 386 | return 0; |
| 387 | } |
| 388 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, |
| 389 | size_t nbytes, loff_t *ppos) |
| 390 | { |
| 391 | return 0; |
| 392 | } |
| 393 | #endif /* CONFIG_DEBUG_FS */ |
| 394 | |
Alexey Dobriyan | 828c095 | 2009-10-01 15:43:56 -0700 | [diff] [blame] | 395 | static const struct file_operations ocfs2_osb_debug_fops = { |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 396 | .open = ocfs2_osb_debug_open, |
| 397 | .release = ocfs2_debug_release, |
| 398 | .read = ocfs2_debug_read, |
| 399 | .llseek = generic_file_llseek, |
| 400 | }; |
| 401 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 402 | static int ocfs2_sync_fs(struct super_block *sb, int wait) |
| 403 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 404 | int status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 405 | tid_t target; |
| 406 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 407 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 408 | if (ocfs2_is_hard_readonly(osb)) |
| 409 | return -EROFS; |
| 410 | |
| 411 | if (wait) { |
| 412 | status = ocfs2_flush_truncate_log(osb); |
| 413 | if (status < 0) |
| 414 | mlog_errno(status); |
| 415 | } else { |
| 416 | ocfs2_schedule_truncate_log_flush(osb, 0); |
| 417 | } |
| 418 | |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 419 | if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, |
| 420 | &target)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 421 | if (wait) |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 422 | jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, |
| 423 | target); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 424 | } |
| 425 | return 0; |
| 426 | } |
| 427 | |
Jan Kara | 1a224ad | 2008-08-20 15:43:36 +0200 | [diff] [blame] | 428 | static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) |
| 429 | { |
| 430 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) |
| 431 | && (ino == USER_QUOTA_SYSTEM_INODE |
| 432 | || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) |
| 433 | return 0; |
| 434 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) |
| 435 | && (ino == GROUP_QUOTA_SYSTEM_INODE |
| 436 | || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) |
| 437 | return 0; |
| 438 | return 1; |
| 439 | } |
| 440 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 441 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) |
| 442 | { |
| 443 | struct inode *new = NULL; |
| 444 | int status = 0; |
| 445 | int i; |
| 446 | |
Jan Kara | 5fa0613 | 2008-01-11 00:11:45 +0100 | [diff] [blame] | 447 | new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 448 | if (IS_ERR(new)) { |
| 449 | status = PTR_ERR(new); |
| 450 | mlog_errno(status); |
| 451 | goto bail; |
| 452 | } |
| 453 | osb->root_inode = new; |
| 454 | |
Jan Kara | 5fa0613 | 2008-01-11 00:11:45 +0100 | [diff] [blame] | 455 | new = ocfs2_iget(osb, osb->system_dir_blkno, OCFS2_FI_FLAG_SYSFILE, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 456 | if (IS_ERR(new)) { |
| 457 | status = PTR_ERR(new); |
| 458 | mlog_errno(status); |
| 459 | goto bail; |
| 460 | } |
| 461 | osb->sys_root_inode = new; |
| 462 | |
| 463 | for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; |
| 464 | i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { |
Jan Kara | 1a224ad | 2008-08-20 15:43:36 +0200 | [diff] [blame] | 465 | if (!ocfs2_need_system_inode(osb, i)) |
| 466 | continue; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 467 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
| 468 | if (!new) { |
| 469 | ocfs2_release_system_inodes(osb); |
| 470 | status = -EINVAL; |
| 471 | mlog_errno(status); |
| 472 | /* FIXME: Should ERROR_RO_FS */ |
| 473 | mlog(ML_ERROR, "Unable to load system inode %d, " |
| 474 | "possibly corrupt fs?", i); |
| 475 | goto bail; |
| 476 | } |
| 477 | // the array now has one ref, so drop this one |
| 478 | iput(new); |
| 479 | } |
| 480 | |
| 481 | bail: |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 482 | if (status) |
| 483 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 484 | return status; |
| 485 | } |
| 486 | |
| 487 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) |
| 488 | { |
| 489 | struct inode *new = NULL; |
| 490 | int status = 0; |
| 491 | int i; |
| 492 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 493 | for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; |
| 494 | i < NUM_SYSTEM_INODES; |
| 495 | i++) { |
Jan Kara | 1a224ad | 2008-08-20 15:43:36 +0200 | [diff] [blame] | 496 | if (!ocfs2_need_system_inode(osb, i)) |
| 497 | continue; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 498 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
| 499 | if (!new) { |
| 500 | ocfs2_release_system_inodes(osb); |
| 501 | status = -EINVAL; |
| 502 | mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", |
| 503 | status, i, osb->slot_num); |
| 504 | goto bail; |
| 505 | } |
| 506 | /* the array now has one ref, so drop this one */ |
| 507 | iput(new); |
| 508 | } |
| 509 | |
| 510 | bail: |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 511 | if (status) |
| 512 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 513 | return status; |
| 514 | } |
| 515 | |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 516 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 517 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 518 | int i; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 519 | struct inode *inode; |
| 520 | |
Tao Ma | b4d693f | 2010-08-16 16:58:21 +0800 | [diff] [blame] | 521 | for (i = 0; i < NUM_GLOBAL_SYSTEM_INODES; i++) { |
| 522 | inode = osb->global_system_inodes[i]; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 523 | if (inode) { |
| 524 | iput(inode); |
Tao Ma | b4d693f | 2010-08-16 16:58:21 +0800 | [diff] [blame] | 525 | osb->global_system_inodes[i] = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 526 | } |
| 527 | } |
| 528 | |
| 529 | inode = osb->sys_root_inode; |
| 530 | if (inode) { |
| 531 | iput(inode); |
| 532 | osb->sys_root_inode = NULL; |
| 533 | } |
| 534 | |
| 535 | inode = osb->root_inode; |
| 536 | if (inode) { |
| 537 | iput(inode); |
| 538 | osb->root_inode = NULL; |
| 539 | } |
| 540 | |
Tao Ma | b4d693f | 2010-08-16 16:58:21 +0800 | [diff] [blame] | 541 | if (!osb->local_system_inodes) |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 542 | return; |
Tao Ma | b4d693f | 2010-08-16 16:58:21 +0800 | [diff] [blame] | 543 | |
| 544 | for (i = 0; i < NUM_LOCAL_SYSTEM_INODES * osb->max_slots; i++) { |
| 545 | if (osb->local_system_inodes[i]) { |
| 546 | iput(osb->local_system_inodes[i]); |
| 547 | osb->local_system_inodes[i] = NULL; |
| 548 | } |
| 549 | } |
| 550 | |
| 551 | kfree(osb->local_system_inodes); |
| 552 | osb->local_system_inodes = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 553 | } |
| 554 | |
| 555 | /* We're allocating fs objects, use GFP_NOFS */ |
| 556 | static struct inode *ocfs2_alloc_inode(struct super_block *sb) |
| 557 | { |
| 558 | struct ocfs2_inode_info *oi; |
| 559 | |
Christoph Lameter | e6b4f8d | 2006-12-06 20:33:14 -0800 | [diff] [blame] | 560 | oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 561 | if (!oi) |
| 562 | return NULL; |
| 563 | |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 564 | jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 565 | return &oi->vfs_inode; |
| 566 | } |
| 567 | |
Nick Piggin | fa0d7e3 | 2011-01-07 17:49:49 +1100 | [diff] [blame] | 568 | static void ocfs2_i_callback(struct rcu_head *head) |
| 569 | { |
| 570 | struct inode *inode = container_of(head, struct inode, i_rcu); |
| 571 | INIT_LIST_HEAD(&inode->i_dentry); |
| 572 | kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); |
| 573 | } |
| 574 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 575 | static void ocfs2_destroy_inode(struct inode *inode) |
| 576 | { |
Nick Piggin | fa0d7e3 | 2011-01-07 17:49:49 +1100 | [diff] [blame] | 577 | call_rcu(&inode->i_rcu, ocfs2_i_callback); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 578 | } |
| 579 | |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 580 | static unsigned long long ocfs2_max_file_offset(unsigned int bbits, |
| 581 | unsigned int cbits) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 582 | { |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 583 | unsigned int bytes = 1 << cbits; |
| 584 | unsigned int trim = bytes; |
| 585 | unsigned int bitshift = 32; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 586 | |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 587 | /* |
| 588 | * i_size and all block offsets in ocfs2 are always 64 bits |
| 589 | * wide. i_clusters is 32 bits, in cluster-sized units. So on |
| 590 | * 64 bit platforms, cluster size will be the limiting factor. |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 591 | */ |
| 592 | |
| 593 | #if BITS_PER_LONG == 32 |
Bartlomiej Zolnierkiewicz | 90c699a | 2009-06-19 08:08:50 +0200 | [diff] [blame] | 594 | # if defined(CONFIG_LBDAF) |
Alexey Dobriyan | 2ecd05a | 2006-10-11 01:22:05 -0700 | [diff] [blame] | 595 | BUILD_BUG_ON(sizeof(sector_t) != 8); |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 596 | /* |
| 597 | * We might be limited by page cache size. |
| 598 | */ |
| 599 | if (bytes > PAGE_CACHE_SIZE) { |
| 600 | bytes = PAGE_CACHE_SIZE; |
| 601 | trim = 1; |
| 602 | /* |
| 603 | * Shift by 31 here so that we don't get larger than |
| 604 | * MAX_LFS_FILESIZE |
| 605 | */ |
| 606 | bitshift = 31; |
| 607 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 608 | # else |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 609 | /* |
| 610 | * We are limited by the size of sector_t. Use block size, as |
| 611 | * that's what we expose to the VFS. |
| 612 | */ |
| 613 | bytes = 1 << bbits; |
| 614 | trim = 1; |
| 615 | bitshift = 31; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 616 | # endif |
| 617 | #endif |
| 618 | |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 619 | /* |
| 620 | * Trim by a whole cluster when we can actually approach the |
| 621 | * on-disk limits. Otherwise we can overflow i_clusters when |
| 622 | * an extent start is at the max offset. |
| 623 | */ |
| 624 | return (((unsigned long long)bytes) << bitshift) - trim; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 625 | } |
| 626 | |
| 627 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data) |
| 628 | { |
| 629 | int incompat_features; |
| 630 | int ret = 0; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 631 | struct mount_options parsed_options; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 632 | struct ocfs2_super *osb = OCFS2_SB(sb); |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 633 | u32 tmp; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 634 | |
Jan Kara | 5297aad | 2009-10-15 14:54:04 +0200 | [diff] [blame] | 635 | if (!ocfs2_parse_options(sb, data, &parsed_options, 1) || |
| 636 | !ocfs2_check_set_options(sb, &parsed_options)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 637 | ret = -EINVAL; |
| 638 | goto out; |
| 639 | } |
| 640 | |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 641 | tmp = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL | |
| 642 | OCFS2_MOUNT_HB_NONE; |
| 643 | if ((osb->s_mount_opt & tmp) != (parsed_options.mount_opt & tmp)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 644 | ret = -EINVAL; |
| 645 | mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); |
| 646 | goto out; |
| 647 | } |
| 648 | |
| 649 | if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 650 | (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 651 | ret = -EINVAL; |
| 652 | mlog(ML_ERROR, "Cannot change data mode on remount\n"); |
| 653 | goto out; |
| 654 | } |
| 655 | |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 656 | /* Probably don't want this on remount; it might |
| 657 | * mess with other nodes */ |
| 658 | if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && |
| 659 | (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { |
| 660 | ret = -EINVAL; |
| 661 | mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); |
| 662 | goto out; |
| 663 | } |
| 664 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 665 | /* We're going to/from readonly mode. */ |
| 666 | if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 667 | /* Disable quota accounting before remounting RO */ |
| 668 | if (*flags & MS_RDONLY) { |
| 669 | ret = ocfs2_susp_quotas(osb, 0); |
| 670 | if (ret < 0) |
| 671 | goto out; |
| 672 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 673 | /* Lock here so the check of HARD_RO and the potential |
| 674 | * setting of SOFT_RO is atomic. */ |
| 675 | spin_lock(&osb->osb_lock); |
| 676 | if (osb->osb_flags & OCFS2_OSB_HARD_RO) { |
| 677 | mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); |
| 678 | ret = -EROFS; |
| 679 | goto unlock_osb; |
| 680 | } |
| 681 | |
| 682 | if (*flags & MS_RDONLY) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 683 | sb->s_flags |= MS_RDONLY; |
| 684 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; |
| 685 | } else { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 686 | if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { |
| 687 | mlog(ML_ERROR, "Cannot remount RDWR " |
| 688 | "filesystem due to previous errors.\n"); |
| 689 | ret = -EROFS; |
| 690 | goto unlock_osb; |
| 691 | } |
| 692 | incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); |
| 693 | if (incompat_features) { |
| 694 | mlog(ML_ERROR, "Cannot remount RDWR because " |
| 695 | "of unsupported optional features " |
| 696 | "(%x).\n", incompat_features); |
| 697 | ret = -EINVAL; |
| 698 | goto unlock_osb; |
| 699 | } |
| 700 | sb->s_flags &= ~MS_RDONLY; |
| 701 | osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; |
| 702 | } |
Tao Ma | 32a42d3 | 2011-02-23 21:29:08 +0800 | [diff] [blame] | 703 | trace_ocfs2_remount(sb->s_flags, osb->osb_flags, *flags); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 704 | unlock_osb: |
| 705 | spin_unlock(&osb->osb_lock); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 706 | /* Enable quota accounting after remounting RW */ |
| 707 | if (!ret && !(*flags & MS_RDONLY)) { |
| 708 | if (sb_any_quota_suspended(sb)) |
| 709 | ret = ocfs2_susp_quotas(osb, 1); |
| 710 | else |
| 711 | ret = ocfs2_enable_quotas(osb); |
| 712 | if (ret < 0) { |
| 713 | /* Return back changes... */ |
| 714 | spin_lock(&osb->osb_lock); |
| 715 | sb->s_flags |= MS_RDONLY; |
| 716 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; |
| 717 | spin_unlock(&osb->osb_lock); |
| 718 | goto out; |
| 719 | } |
| 720 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 721 | } |
| 722 | |
| 723 | if (!ret) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 724 | /* Only save off the new mount options in case of a successful |
| 725 | * remount. */ |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 726 | osb->s_mount_opt = parsed_options.mount_opt; |
| 727 | osb->s_atime_quantum = parsed_options.atime_quantum; |
| 728 | osb->preferred_slot = parsed_options.slot; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 729 | if (parsed_options.commit_interval) |
| 730 | osb->osb_commit_interval = parsed_options.commit_interval; |
Mark Fasheh | e001e79 | 2007-11-07 14:21:45 -0800 | [diff] [blame] | 731 | |
| 732 | if (!ocfs2_is_hard_readonly(osb)) |
| 733 | ocfs2_set_journal_params(osb); |
Jan Kara | 57b09bb | 2009-10-15 14:54:05 +0200 | [diff] [blame] | 734 | |
| 735 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
| 736 | ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? |
| 737 | MS_POSIXACL : 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 738 | } |
| 739 | out: |
| 740 | return ret; |
| 741 | } |
| 742 | |
| 743 | static int ocfs2_sb_probe(struct super_block *sb, |
| 744 | struct buffer_head **bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 745 | int *sector_size, |
| 746 | struct ocfs2_blockcheck_stats *stats) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 747 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 748 | int status, tmpstat; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 749 | struct ocfs1_vol_disk_hdr *hdr; |
| 750 | struct ocfs2_dinode *di; |
| 751 | int blksize; |
| 752 | |
| 753 | *bh = NULL; |
| 754 | |
| 755 | /* may be > 512 */ |
Martin K. Petersen | e1defc4 | 2009-05-22 17:17:49 -0400 | [diff] [blame] | 756 | *sector_size = bdev_logical_block_size(sb->s_bdev); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 757 | if (*sector_size > OCFS2_MAX_BLOCKSIZE) { |
| 758 | mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", |
| 759 | *sector_size, OCFS2_MAX_BLOCKSIZE); |
| 760 | status = -EINVAL; |
| 761 | goto bail; |
| 762 | } |
| 763 | |
| 764 | /* Can this really happen? */ |
| 765 | if (*sector_size < OCFS2_MIN_BLOCKSIZE) |
| 766 | *sector_size = OCFS2_MIN_BLOCKSIZE; |
| 767 | |
| 768 | /* check block zero for old format */ |
| 769 | status = ocfs2_get_sector(sb, bh, 0, *sector_size); |
| 770 | if (status < 0) { |
| 771 | mlog_errno(status); |
| 772 | goto bail; |
| 773 | } |
| 774 | hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; |
| 775 | if (hdr->major_version == OCFS1_MAJOR_VERSION) { |
| 776 | mlog(ML_ERROR, "incompatible version: %u.%u\n", |
| 777 | hdr->major_version, hdr->minor_version); |
| 778 | status = -EINVAL; |
| 779 | } |
| 780 | if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, |
| 781 | strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { |
| 782 | mlog(ML_ERROR, "incompatible volume signature: %8s\n", |
| 783 | hdr->signature); |
| 784 | status = -EINVAL; |
| 785 | } |
| 786 | brelse(*bh); |
| 787 | *bh = NULL; |
| 788 | if (status < 0) { |
| 789 | mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " |
| 790 | "upgraded before mounting with ocfs v2\n"); |
| 791 | goto bail; |
| 792 | } |
| 793 | |
| 794 | /* |
| 795 | * Now check at magic offset for 512, 1024, 2048, 4096 |
| 796 | * blocksizes. 4096 is the maximum blocksize because it is |
| 797 | * the minimum clustersize. |
| 798 | */ |
| 799 | status = -EINVAL; |
| 800 | for (blksize = *sector_size; |
| 801 | blksize <= OCFS2_MAX_BLOCKSIZE; |
| 802 | blksize <<= 1) { |
| 803 | tmpstat = ocfs2_get_sector(sb, bh, |
| 804 | OCFS2_SUPER_BLOCK_BLKNO, |
| 805 | blksize); |
| 806 | if (tmpstat < 0) { |
| 807 | status = tmpstat; |
| 808 | mlog_errno(status); |
Joel Becker | fb5cbe9 | 2009-10-28 22:28:24 -0700 | [diff] [blame] | 809 | break; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 810 | } |
| 811 | di = (struct ocfs2_dinode *) (*bh)->b_data; |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 812 | memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); |
Jan Kara | 1c1d979 | 2009-07-22 13:17:19 +0200 | [diff] [blame] | 813 | spin_lock_init(&stats->b_lock); |
Joel Becker | fb5cbe9 | 2009-10-28 22:28:24 -0700 | [diff] [blame] | 814 | tmpstat = ocfs2_verify_volume(di, *bh, blksize, stats); |
| 815 | if (tmpstat < 0) { |
| 816 | brelse(*bh); |
| 817 | *bh = NULL; |
| 818 | } |
| 819 | if (tmpstat != -EAGAIN) { |
| 820 | status = tmpstat; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 821 | break; |
Joel Becker | fb5cbe9 | 2009-10-28 22:28:24 -0700 | [diff] [blame] | 822 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 823 | } |
| 824 | |
| 825 | bail: |
| 826 | return status; |
| 827 | } |
| 828 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 829 | static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) |
| 830 | { |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 831 | u32 hb_enabled = OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL; |
| 832 | |
| 833 | if (osb->s_mount_opt & hb_enabled) { |
| 834 | if (ocfs2_mount_local(osb)) { |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 835 | mlog(ML_ERROR, "Cannot heartbeat on a locally " |
| 836 | "mounted device.\n"); |
| 837 | return -EINVAL; |
| 838 | } |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 839 | if (ocfs2_userspace_stack(osb)) { |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 840 | mlog(ML_ERROR, "Userspace stack expected, but " |
| 841 | "o2cb heartbeat arguments passed to mount\n"); |
| 842 | return -EINVAL; |
| 843 | } |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 844 | if (((osb->s_mount_opt & OCFS2_MOUNT_HB_GLOBAL) && |
| 845 | !ocfs2_cluster_o2cb_global_heartbeat(osb)) || |
| 846 | ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) && |
| 847 | ocfs2_cluster_o2cb_global_heartbeat(osb))) { |
| 848 | mlog(ML_ERROR, "Mismatching o2cb heartbeat modes\n"); |
| 849 | return -EINVAL; |
| 850 | } |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 851 | } |
| 852 | |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 853 | if (!(osb->s_mount_opt & hb_enabled)) { |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 854 | if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && |
| 855 | !ocfs2_userspace_stack(osb)) { |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 856 | mlog(ML_ERROR, "Heartbeat has to be started to mount " |
| 857 | "a read-write clustered device.\n"); |
| 858 | return -EINVAL; |
| 859 | } |
| 860 | } |
| 861 | |
| 862 | return 0; |
| 863 | } |
| 864 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 865 | /* |
| 866 | * If we're using a userspace stack, mount should have passed |
| 867 | * a name that matches the disk. If not, mount should not |
| 868 | * have passed a stack. |
| 869 | */ |
| 870 | static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, |
| 871 | struct mount_options *mopt) |
| 872 | { |
| 873 | if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { |
| 874 | mlog(ML_ERROR, |
| 875 | "cluster stack passed to mount, but this filesystem " |
| 876 | "does not support it\n"); |
| 877 | return -EINVAL; |
| 878 | } |
| 879 | |
| 880 | if (ocfs2_userspace_stack(osb) && |
| 881 | strncmp(osb->osb_cluster_stack, mopt->cluster_stack, |
| 882 | OCFS2_STACK_LABEL_LEN)) { |
| 883 | mlog(ML_ERROR, |
| 884 | "cluster stack passed to mount (\"%s\") does not " |
| 885 | "match the filesystem (\"%s\")\n", |
| 886 | mopt->cluster_stack, |
| 887 | osb->osb_cluster_stack); |
| 888 | return -EINVAL; |
| 889 | } |
| 890 | |
| 891 | return 0; |
| 892 | } |
| 893 | |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 894 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) |
| 895 | { |
| 896 | int type; |
| 897 | struct super_block *sb = osb->sb; |
| 898 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, |
| 899 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; |
| 900 | int status = 0; |
| 901 | |
| 902 | for (type = 0; type < MAXQUOTAS; type++) { |
| 903 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
| 904 | continue; |
| 905 | if (unsuspend) |
Christoph Hellwig | 0f0dd62 | 2010-05-19 07:16:41 -0400 | [diff] [blame] | 906 | status = dquot_resume(sb, type); |
Jan Kara | eea7feb | 2010-05-13 22:14:53 +0200 | [diff] [blame] | 907 | else { |
| 908 | struct ocfs2_mem_dqinfo *oinfo; |
| 909 | |
| 910 | /* Cancel periodic syncing before suspending */ |
| 911 | oinfo = sb_dqinfo(sb, type)->dqi_priv; |
| 912 | cancel_delayed_work_sync(&oinfo->dqi_sync_work); |
Christoph Hellwig | 0f0dd62 | 2010-05-19 07:16:41 -0400 | [diff] [blame] | 913 | status = dquot_suspend(sb, type); |
Jan Kara | eea7feb | 2010-05-13 22:14:53 +0200 | [diff] [blame] | 914 | } |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 915 | if (status < 0) |
| 916 | break; |
| 917 | } |
| 918 | if (status < 0) |
| 919 | mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " |
| 920 | "remount (error = %d).\n", status); |
| 921 | return status; |
| 922 | } |
| 923 | |
| 924 | static int ocfs2_enable_quotas(struct ocfs2_super *osb) |
| 925 | { |
| 926 | struct inode *inode[MAXQUOTAS] = { NULL, NULL }; |
| 927 | struct super_block *sb = osb->sb; |
| 928 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, |
| 929 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; |
| 930 | unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, |
| 931 | LOCAL_GROUP_QUOTA_SYSTEM_INODE }; |
| 932 | int status; |
| 933 | int type; |
| 934 | |
| 935 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; |
| 936 | for (type = 0; type < MAXQUOTAS; type++) { |
| 937 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
| 938 | continue; |
| 939 | inode[type] = ocfs2_get_system_file_inode(osb, ino[type], |
| 940 | osb->slot_num); |
| 941 | if (!inode[type]) { |
| 942 | status = -ENOENT; |
| 943 | goto out_quota_off; |
| 944 | } |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 945 | status = dquot_enable(inode[type], type, QFMT_OCFS2, |
| 946 | DQUOT_USAGE_ENABLED); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 947 | if (status < 0) |
| 948 | goto out_quota_off; |
| 949 | } |
| 950 | |
| 951 | for (type = 0; type < MAXQUOTAS; type++) |
| 952 | iput(inode[type]); |
| 953 | return 0; |
| 954 | out_quota_off: |
| 955 | ocfs2_disable_quotas(osb); |
| 956 | for (type = 0; type < MAXQUOTAS; type++) |
| 957 | iput(inode[type]); |
| 958 | mlog_errno(status); |
| 959 | return status; |
| 960 | } |
| 961 | |
| 962 | static void ocfs2_disable_quotas(struct ocfs2_super *osb) |
| 963 | { |
| 964 | int type; |
| 965 | struct inode *inode; |
| 966 | struct super_block *sb = osb->sb; |
Jan Kara | c06bcbf | 2010-05-13 22:14:53 +0200 | [diff] [blame] | 967 | struct ocfs2_mem_dqinfo *oinfo; |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 968 | |
| 969 | /* We mostly ignore errors in this function because there's not much |
| 970 | * we can do when we see them */ |
| 971 | for (type = 0; type < MAXQUOTAS; type++) { |
| 972 | if (!sb_has_quota_loaded(sb, type)) |
| 973 | continue; |
Jan Kara | c06bcbf | 2010-05-13 22:14:53 +0200 | [diff] [blame] | 974 | /* Cancel periodic syncing before we grab dqonoff_mutex */ |
| 975 | oinfo = sb_dqinfo(sb, type)->dqi_priv; |
| 976 | cancel_delayed_work_sync(&oinfo->dqi_sync_work); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 977 | inode = igrab(sb->s_dquot.files[type]); |
| 978 | /* Turn off quotas. This will remove all dquot structures from |
| 979 | * memory and so they will be automatically synced to global |
| 980 | * quota files */ |
Christoph Hellwig | 0f0dd62 | 2010-05-19 07:16:41 -0400 | [diff] [blame] | 981 | dquot_disable(sb, type, DQUOT_USAGE_ENABLED | |
| 982 | DQUOT_LIMITS_ENABLED); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 983 | if (!inode) |
| 984 | continue; |
| 985 | iput(inode); |
| 986 | } |
| 987 | } |
| 988 | |
| 989 | /* Handle quota on quotactl */ |
Jan Kara | f00c9e4 | 2010-09-15 17:38:58 +0200 | [diff] [blame] | 990 | static int ocfs2_quota_on(struct super_block *sb, int type, int format_id) |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 991 | { |
| 992 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, |
| 993 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; |
| 994 | |
| 995 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
| 996 | return -EINVAL; |
| 997 | |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 998 | return dquot_enable(sb_dqopt(sb)->files[type], type, |
| 999 | format_id, DQUOT_LIMITS_ENABLED); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1000 | } |
| 1001 | |
| 1002 | /* Handle quota off quotactl */ |
Christoph Hellwig | 307ae18 | 2010-05-19 07:16:43 -0400 | [diff] [blame] | 1003 | static int ocfs2_quota_off(struct super_block *sb, int type) |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1004 | { |
Christoph Hellwig | 0f0dd62 | 2010-05-19 07:16:41 -0400 | [diff] [blame] | 1005 | return dquot_disable(sb, type, DQUOT_LIMITS_ENABLED); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1006 | } |
| 1007 | |
Alexey Dobriyan | 0d54b21 | 2009-09-21 17:01:09 -0700 | [diff] [blame] | 1008 | static const struct quotactl_ops ocfs2_quotactl_ops = { |
Jan Kara | f00c9e4 | 2010-09-15 17:38:58 +0200 | [diff] [blame] | 1009 | .quota_on_meta = ocfs2_quota_on, |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1010 | .quota_off = ocfs2_quota_off, |
Christoph Hellwig | 287a809 | 2010-05-19 07:16:45 -0400 | [diff] [blame] | 1011 | .quota_sync = dquot_quota_sync, |
| 1012 | .get_info = dquot_get_dqinfo, |
| 1013 | .set_info = dquot_set_dqinfo, |
| 1014 | .get_dqblk = dquot_get_dqblk, |
| 1015 | .set_dqblk = dquot_set_dqblk, |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1016 | }; |
| 1017 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1018 | static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) |
| 1019 | { |
| 1020 | struct dentry *root; |
| 1021 | int status, sector_size; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1022 | struct mount_options parsed_options; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1023 | struct inode *inode = NULL; |
| 1024 | struct ocfs2_super *osb = NULL; |
| 1025 | struct buffer_head *bh = NULL; |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1026 | char nodestr[8]; |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1027 | struct ocfs2_blockcheck_stats stats; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1028 | |
Tao Ma | 32a42d3 | 2011-02-23 21:29:08 +0800 | [diff] [blame] | 1029 | trace_ocfs2_fill_super(sb, data, silent); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1030 | |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1031 | if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1032 | status = -EINVAL; |
| 1033 | goto read_super_error; |
| 1034 | } |
| 1035 | |
| 1036 | /* probe for superblock */ |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1037 | status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1038 | if (status < 0) { |
| 1039 | mlog(ML_ERROR, "superblock probe failed!\n"); |
| 1040 | goto read_super_error; |
| 1041 | } |
| 1042 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1043 | status = ocfs2_initialize_super(sb, bh, sector_size, &stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1044 | osb = OCFS2_SB(sb); |
| 1045 | if (status < 0) { |
| 1046 | mlog_errno(status); |
| 1047 | goto read_super_error; |
| 1048 | } |
| 1049 | brelse(bh); |
| 1050 | bh = NULL; |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1051 | |
Jan Kara | 5297aad | 2009-10-15 14:54:04 +0200 | [diff] [blame] | 1052 | if (!ocfs2_check_set_options(sb, &parsed_options)) { |
| 1053 | status = -EINVAL; |
| 1054 | goto read_super_error; |
| 1055 | } |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1056 | osb->s_mount_opt = parsed_options.mount_opt; |
| 1057 | osb->s_atime_quantum = parsed_options.atime_quantum; |
| 1058 | osb->preferred_slot = parsed_options.slot; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1059 | osb->osb_commit_interval = parsed_options.commit_interval; |
Mark Fasheh | 73c8a80 | 2010-04-05 18:17:13 -0700 | [diff] [blame] | 1060 | |
| 1061 | ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 1062 | osb->osb_resv_level = parsed_options.resv_level; |
Mark Fasheh | 83f9231 | 2010-04-05 18:17:16 -0700 | [diff] [blame] | 1063 | osb->osb_dir_resv_level = parsed_options.resv_level; |
| 1064 | if (parsed_options.dir_resv_level == -1) |
| 1065 | osb->osb_dir_resv_level = parsed_options.resv_level; |
| 1066 | else |
| 1067 | osb->osb_dir_resv_level = parsed_options.dir_resv_level; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1068 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1069 | status = ocfs2_verify_userspace_stack(osb, &parsed_options); |
| 1070 | if (status) |
| 1071 | goto read_super_error; |
| 1072 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1073 | sb->s_magic = OCFS2_SUPER_MAGIC; |
| 1074 | |
Al Viro | 9e1f1de | 2011-06-03 18:24:58 -0400 | [diff] [blame] | 1075 | sb->s_flags = (sb->s_flags & ~(MS_POSIXACL | MS_NOSEC)) | |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1076 | ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); |
| 1077 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1078 | /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, |
| 1079 | * heartbeat=none */ |
| 1080 | if (bdev_read_only(sb->s_bdev)) { |
| 1081 | if (!(sb->s_flags & MS_RDONLY)) { |
| 1082 | status = -EACCES; |
| 1083 | mlog(ML_ERROR, "Readonly device detected but readonly " |
| 1084 | "mount was not specified.\n"); |
| 1085 | goto read_super_error; |
| 1086 | } |
| 1087 | |
| 1088 | /* You should not be able to start a local heartbeat |
| 1089 | * on a readonly device. */ |
| 1090 | if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { |
| 1091 | status = -EROFS; |
| 1092 | mlog(ML_ERROR, "Local heartbeat specified on readonly " |
| 1093 | "device.\n"); |
| 1094 | goto read_super_error; |
| 1095 | } |
| 1096 | |
| 1097 | status = ocfs2_check_journals_nolocks(osb); |
| 1098 | if (status < 0) { |
| 1099 | if (status == -EROFS) |
| 1100 | mlog(ML_ERROR, "Recovery required on readonly " |
| 1101 | "file system, but write access is " |
| 1102 | "unavailable.\n"); |
| 1103 | else |
Sunil Mushran | 2bd6321 | 2010-01-25 16:57:38 -0800 | [diff] [blame] | 1104 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1105 | goto read_super_error; |
| 1106 | } |
| 1107 | |
| 1108 | ocfs2_set_ro_flag(osb, 1); |
| 1109 | |
| 1110 | printk(KERN_NOTICE "Readonly device detected. No cluster " |
| 1111 | "services will be utilized for this mount. Recovery " |
| 1112 | "will be skipped.\n"); |
| 1113 | } |
| 1114 | |
| 1115 | if (!ocfs2_is_hard_readonly(osb)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1116 | if (sb->s_flags & MS_RDONLY) |
| 1117 | ocfs2_set_ro_flag(osb, 0); |
| 1118 | } |
| 1119 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1120 | status = ocfs2_verify_heartbeat(osb); |
| 1121 | if (status < 0) { |
| 1122 | mlog_errno(status); |
| 1123 | goto read_super_error; |
| 1124 | } |
| 1125 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1126 | osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, |
| 1127 | ocfs2_debugfs_root); |
| 1128 | if (!osb->osb_debug_root) { |
| 1129 | status = -EINVAL; |
| 1130 | mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); |
| 1131 | goto read_super_error; |
| 1132 | } |
| 1133 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 1134 | osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, |
| 1135 | osb->osb_debug_root, |
| 1136 | osb, |
| 1137 | &ocfs2_osb_debug_fops); |
| 1138 | if (!osb->osb_ctxt) { |
| 1139 | status = -EINVAL; |
| 1140 | mlog_errno(status); |
| 1141 | goto read_super_error; |
| 1142 | } |
| 1143 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1144 | if (ocfs2_meta_ecc(osb)) { |
| 1145 | status = ocfs2_blockcheck_stats_debugfs_install( |
| 1146 | &osb->osb_ecc_stats, |
| 1147 | osb->osb_debug_root); |
| 1148 | if (status) { |
| 1149 | mlog(ML_ERROR, |
| 1150 | "Unable to create blockcheck statistics " |
| 1151 | "files\n"); |
| 1152 | goto read_super_error; |
| 1153 | } |
| 1154 | } |
| 1155 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1156 | status = ocfs2_mount_volume(sb); |
| 1157 | if (osb->root_inode) |
| 1158 | inode = igrab(osb->root_inode); |
| 1159 | |
| 1160 | if (status < 0) |
| 1161 | goto read_super_error; |
| 1162 | |
| 1163 | if (!inode) { |
| 1164 | status = -EIO; |
| 1165 | mlog_errno(status); |
| 1166 | goto read_super_error; |
| 1167 | } |
| 1168 | |
| 1169 | root = d_alloc_root(inode); |
| 1170 | if (!root) { |
| 1171 | status = -ENOMEM; |
| 1172 | mlog_errno(status); |
| 1173 | goto read_super_error; |
| 1174 | } |
| 1175 | |
| 1176 | sb->s_root = root; |
| 1177 | |
| 1178 | ocfs2_complete_mount_recovery(osb); |
| 1179 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1180 | if (ocfs2_mount_local(osb)) |
| 1181 | snprintf(nodestr, sizeof(nodestr), "local"); |
| 1182 | else |
Joel Becker | 19fdb62 | 2008-01-30 15:38:24 -0800 | [diff] [blame] | 1183 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1184 | |
| 1185 | printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " |
Sunil Mushran | 781ee3e | 2006-04-27 16:41:31 -0700 | [diff] [blame] | 1186 | "with %s data mode.\n", |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1187 | osb->dev_str, nodestr, osb->slot_num, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1188 | osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : |
| 1189 | "ordered"); |
| 1190 | |
| 1191 | atomic_set(&osb->vol_state, VOLUME_MOUNTED); |
| 1192 | wake_up(&osb->osb_mount_event); |
| 1193 | |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1194 | /* Now we can initialize quotas because we can afford to wait |
| 1195 | * for cluster locks recovery now. That also means that truncation |
| 1196 | * log recovery can happen but that waits for proper quota setup */ |
| 1197 | if (!(sb->s_flags & MS_RDONLY)) { |
| 1198 | status = ocfs2_enable_quotas(osb); |
| 1199 | if (status < 0) { |
| 1200 | /* We have to err-out specially here because |
| 1201 | * s_root is already set */ |
| 1202 | mlog_errno(status); |
| 1203 | atomic_set(&osb->vol_state, VOLUME_DISABLED); |
| 1204 | wake_up(&osb->osb_mount_event); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1205 | return status; |
| 1206 | } |
| 1207 | } |
| 1208 | |
| 1209 | ocfs2_complete_quota_recovery(osb); |
| 1210 | |
| 1211 | /* Now we wake up again for processes waiting for quotas */ |
| 1212 | atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); |
| 1213 | wake_up(&osb->osb_mount_event); |
| 1214 | |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 1215 | /* Start this when the mount is almost sure of being successful */ |
Jeff Mahoney | 8b712cd | 2009-07-07 17:22:12 -0400 | [diff] [blame] | 1216 | ocfs2_orphan_scan_start(osb); |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 1217 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1218 | return status; |
| 1219 | |
| 1220 | read_super_error: |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 1221 | brelse(bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1222 | |
| 1223 | if (inode) |
| 1224 | iput(inode); |
| 1225 | |
| 1226 | if (osb) { |
| 1227 | atomic_set(&osb->vol_state, VOLUME_DISABLED); |
| 1228 | wake_up(&osb->osb_mount_event); |
| 1229 | ocfs2_dismount_volume(sb, 1); |
| 1230 | } |
| 1231 | |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 1232 | if (status) |
| 1233 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1234 | return status; |
| 1235 | } |
| 1236 | |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1237 | static struct dentry *ocfs2_mount(struct file_system_type *fs_type, |
David Howells | 454e239 | 2006-06-23 02:02:57 -0700 | [diff] [blame] | 1238 | int flags, |
| 1239 | const char *dev_name, |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1240 | void *data) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1241 | { |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1242 | return mount_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1243 | } |
| 1244 | |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1245 | static void ocfs2_kill_sb(struct super_block *sb) |
| 1246 | { |
| 1247 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 1248 | |
Jan Kara | 5fd1318 | 2009-07-30 17:01:53 +0200 | [diff] [blame] | 1249 | /* Failed mount? */ |
| 1250 | if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) |
| 1251 | goto out; |
| 1252 | |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1253 | /* Prevent further queueing of inode drop events */ |
| 1254 | spin_lock(&dentry_list_lock); |
| 1255 | ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); |
| 1256 | spin_unlock(&dentry_list_lock); |
| 1257 | /* Wait for work to finish and/or remove it */ |
| 1258 | cancel_work_sync(&osb->dentry_lock_work); |
Jan Kara | 5fd1318 | 2009-07-30 17:01:53 +0200 | [diff] [blame] | 1259 | out: |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1260 | kill_block_super(sb); |
| 1261 | } |
| 1262 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1263 | static struct file_system_type ocfs2_fs_type = { |
| 1264 | .owner = THIS_MODULE, |
| 1265 | .name = "ocfs2", |
Al Viro | 152a083 | 2010-07-25 00:46:55 +0400 | [diff] [blame] | 1266 | .mount = ocfs2_mount, |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1267 | .kill_sb = ocfs2_kill_sb, |
| 1268 | |
Mark Fasheh | 1ba9da2 | 2006-09-08 14:22:54 -0700 | [diff] [blame] | 1269 | .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1270 | .next = NULL |
| 1271 | }; |
| 1272 | |
Jan Kara | 5297aad | 2009-10-15 14:54:04 +0200 | [diff] [blame] | 1273 | static int ocfs2_check_set_options(struct super_block *sb, |
| 1274 | struct mount_options *options) |
| 1275 | { |
| 1276 | if (options->mount_opt & OCFS2_MOUNT_USRQUOTA && |
| 1277 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, |
| 1278 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { |
| 1279 | mlog(ML_ERROR, "User quotas were requested, but this " |
| 1280 | "filesystem does not have the feature enabled.\n"); |
| 1281 | return 0; |
| 1282 | } |
| 1283 | if (options->mount_opt & OCFS2_MOUNT_GRPQUOTA && |
| 1284 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, |
| 1285 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { |
| 1286 | mlog(ML_ERROR, "Group quotas were requested, but this " |
| 1287 | "filesystem does not have the feature enabled.\n"); |
| 1288 | return 0; |
| 1289 | } |
| 1290 | if (options->mount_opt & OCFS2_MOUNT_POSIX_ACL && |
| 1291 | !OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) { |
| 1292 | mlog(ML_ERROR, "ACL support requested but extended attributes " |
| 1293 | "feature is not enabled\n"); |
| 1294 | return 0; |
| 1295 | } |
| 1296 | /* No ACL setting specified? Use XATTR feature... */ |
| 1297 | if (!(options->mount_opt & (OCFS2_MOUNT_POSIX_ACL | |
| 1298 | OCFS2_MOUNT_NO_POSIX_ACL))) { |
| 1299 | if (OCFS2_HAS_INCOMPAT_FEATURE(sb, OCFS2_FEATURE_INCOMPAT_XATTR)) |
| 1300 | options->mount_opt |= OCFS2_MOUNT_POSIX_ACL; |
| 1301 | else |
| 1302 | options->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; |
| 1303 | } |
| 1304 | return 1; |
| 1305 | } |
| 1306 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1307 | static int ocfs2_parse_options(struct super_block *sb, |
| 1308 | char *options, |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1309 | struct mount_options *mopt, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1310 | int is_remount) |
| 1311 | { |
Mark Fasheh | 52c303c | 2011-01-31 11:31:04 -0800 | [diff] [blame] | 1312 | int status, user_stack = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1313 | char *p; |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 1314 | u32 tmp; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1315 | |
Tao Ma | 32a42d3 | 2011-02-23 21:29:08 +0800 | [diff] [blame] | 1316 | trace_ocfs2_parse_options(is_remount, options ? options : "(none)"); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1317 | |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1318 | mopt->commit_interval = 0; |
Sunil Mushran | 4b37fcb | 2010-04-13 18:00:31 -0700 | [diff] [blame] | 1319 | mopt->mount_opt = OCFS2_MOUNT_NOINTR; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1320 | mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
| 1321 | mopt->slot = OCFS2_INVALID_SLOT; |
Mark Fasheh | 73c8a80 | 2010-04-05 18:17:13 -0700 | [diff] [blame] | 1322 | mopt->localalloc_opt = -1; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1323 | mopt->cluster_stack[0] = '\0'; |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 1324 | mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; |
Mark Fasheh | 83f9231 | 2010-04-05 18:17:16 -0700 | [diff] [blame] | 1325 | mopt->dir_resv_level = -1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1326 | |
| 1327 | if (!options) { |
| 1328 | status = 1; |
| 1329 | goto bail; |
| 1330 | } |
| 1331 | |
| 1332 | while ((p = strsep(&options, ",")) != NULL) { |
| 1333 | int token, option; |
| 1334 | substring_t args[MAX_OPT_ARGS]; |
| 1335 | |
| 1336 | if (!*p) |
| 1337 | continue; |
| 1338 | |
| 1339 | token = match_token(p, tokens, args); |
| 1340 | switch (token) { |
| 1341 | case Opt_hb_local: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1342 | mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1343 | break; |
| 1344 | case Opt_hb_none: |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 1345 | mopt->mount_opt |= OCFS2_MOUNT_HB_NONE; |
| 1346 | break; |
| 1347 | case Opt_hb_global: |
| 1348 | mopt->mount_opt |= OCFS2_MOUNT_HB_GLOBAL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1349 | break; |
| 1350 | case Opt_barrier: |
| 1351 | if (match_int(&args[0], &option)) { |
| 1352 | status = 0; |
| 1353 | goto bail; |
| 1354 | } |
| 1355 | if (option) |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1356 | mopt->mount_opt |= OCFS2_MOUNT_BARRIER; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1357 | else |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1358 | mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1359 | break; |
| 1360 | case Opt_intr: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1361 | mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1362 | break; |
| 1363 | case Opt_nointr: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1364 | mopt->mount_opt |= OCFS2_MOUNT_NOINTR; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1365 | break; |
| 1366 | case Opt_err_panic: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1367 | mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1368 | break; |
| 1369 | case Opt_err_ro: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1370 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1371 | break; |
| 1372 | case Opt_data_ordered: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1373 | mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1374 | break; |
| 1375 | case Opt_data_writeback: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1376 | mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1377 | break; |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 1378 | case Opt_user_xattr: |
| 1379 | mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; |
| 1380 | break; |
| 1381 | case Opt_nouser_xattr: |
| 1382 | mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; |
| 1383 | break; |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 1384 | case Opt_atime_quantum: |
| 1385 | if (match_int(&args[0], &option)) { |
| 1386 | status = 0; |
| 1387 | goto bail; |
| 1388 | } |
| 1389 | if (option >= 0) |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1390 | mopt->atime_quantum = option; |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 1391 | break; |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 1392 | case Opt_slot: |
| 1393 | option = 0; |
| 1394 | if (match_int(&args[0], &option)) { |
| 1395 | status = 0; |
| 1396 | goto bail; |
| 1397 | } |
| 1398 | if (option) |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1399 | mopt->slot = (s16)option; |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 1400 | break; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1401 | case Opt_commit: |
| 1402 | option = 0; |
| 1403 | if (match_int(&args[0], &option)) { |
| 1404 | status = 0; |
| 1405 | goto bail; |
| 1406 | } |
| 1407 | if (option < 0) |
| 1408 | return 0; |
| 1409 | if (option == 0) |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 1410 | option = JBD2_DEFAULT_MAX_COMMIT_AGE; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1411 | mopt->commit_interval = HZ * option; |
| 1412 | break; |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 1413 | case Opt_localalloc: |
| 1414 | option = 0; |
| 1415 | if (match_int(&args[0], &option)) { |
| 1416 | status = 0; |
| 1417 | goto bail; |
| 1418 | } |
Mark Fasheh | 73c8a80 | 2010-04-05 18:17:13 -0700 | [diff] [blame] | 1419 | if (option >= 0) |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 1420 | mopt->localalloc_opt = option; |
| 1421 | break; |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 1422 | case Opt_localflocks: |
| 1423 | /* |
| 1424 | * Changing this during remount could race |
| 1425 | * flock() requests, or "unbalance" existing |
| 1426 | * ones (e.g., a lock is taken in one mode but |
| 1427 | * dropped in the other). If users care enough |
| 1428 | * to flip locking modes during remount, we |
| 1429 | * could add a "local" flag to individual |
| 1430 | * flock structures for proper tracking of |
| 1431 | * state. |
| 1432 | */ |
| 1433 | if (!is_remount) |
| 1434 | mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; |
| 1435 | break; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1436 | case Opt_stack: |
| 1437 | /* Check both that the option we were passed |
| 1438 | * is of the right length and that it is a proper |
| 1439 | * string of the right length. |
| 1440 | */ |
| 1441 | if (((args[0].to - args[0].from) != |
| 1442 | OCFS2_STACK_LABEL_LEN) || |
| 1443 | (strnlen(args[0].from, |
| 1444 | OCFS2_STACK_LABEL_LEN) != |
| 1445 | OCFS2_STACK_LABEL_LEN)) { |
| 1446 | mlog(ML_ERROR, |
| 1447 | "Invalid cluster_stack option\n"); |
| 1448 | status = 0; |
| 1449 | goto bail; |
| 1450 | } |
| 1451 | memcpy(mopt->cluster_stack, args[0].from, |
| 1452 | OCFS2_STACK_LABEL_LEN); |
| 1453 | mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; |
Mark Fasheh | 52c303c | 2011-01-31 11:31:04 -0800 | [diff] [blame] | 1454 | /* |
| 1455 | * Open code the memcmp here as we don't have |
| 1456 | * an osb to pass to |
| 1457 | * ocfs2_userspace_stack(). |
| 1458 | */ |
| 1459 | if (memcmp(mopt->cluster_stack, |
| 1460 | OCFS2_CLASSIC_CLUSTER_STACK, |
| 1461 | OCFS2_STACK_LABEL_LEN)) |
| 1462 | user_stack = 1; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1463 | break; |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 1464 | case Opt_inode64: |
| 1465 | mopt->mount_opt |= OCFS2_MOUNT_INODE64; |
| 1466 | break; |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1467 | case Opt_usrquota: |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1468 | mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; |
| 1469 | break; |
| 1470 | case Opt_grpquota: |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1471 | mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; |
| 1472 | break; |
Tristan Ye | 7bdb0d1 | 2010-10-11 16:46:39 +0800 | [diff] [blame] | 1473 | case Opt_coherency_buffered: |
| 1474 | mopt->mount_opt |= OCFS2_MOUNT_COHERENCY_BUFFERED; |
| 1475 | break; |
| 1476 | case Opt_coherency_full: |
| 1477 | mopt->mount_opt &= ~OCFS2_MOUNT_COHERENCY_BUFFERED; |
| 1478 | break; |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1479 | case Opt_acl: |
| 1480 | mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; |
Jan Kara | 5297aad | 2009-10-15 14:54:04 +0200 | [diff] [blame] | 1481 | mopt->mount_opt &= ~OCFS2_MOUNT_NO_POSIX_ACL; |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1482 | break; |
| 1483 | case Opt_noacl: |
Jan Kara | 5297aad | 2009-10-15 14:54:04 +0200 | [diff] [blame] | 1484 | mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1485 | mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; |
| 1486 | break; |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 1487 | case Opt_resv_level: |
| 1488 | if (is_remount) |
| 1489 | break; |
| 1490 | if (match_int(&args[0], &option)) { |
| 1491 | status = 0; |
| 1492 | goto bail; |
| 1493 | } |
| 1494 | if (option >= OCFS2_MIN_RESV_LEVEL && |
| 1495 | option < OCFS2_MAX_RESV_LEVEL) |
| 1496 | mopt->resv_level = option; |
| 1497 | break; |
Mark Fasheh | 83f9231 | 2010-04-05 18:17:16 -0700 | [diff] [blame] | 1498 | case Opt_dir_resv_level: |
| 1499 | if (is_remount) |
| 1500 | break; |
| 1501 | if (match_int(&args[0], &option)) { |
| 1502 | status = 0; |
| 1503 | goto bail; |
| 1504 | } |
| 1505 | if (option >= OCFS2_MIN_RESV_LEVEL && |
| 1506 | option < OCFS2_MAX_RESV_LEVEL) |
| 1507 | mopt->dir_resv_level = option; |
| 1508 | break; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1509 | default: |
| 1510 | mlog(ML_ERROR, |
| 1511 | "Unrecognized mount option \"%s\" " |
| 1512 | "or missing value\n", p); |
| 1513 | status = 0; |
| 1514 | goto bail; |
| 1515 | } |
| 1516 | } |
| 1517 | |
Mark Fasheh | 52c303c | 2011-01-31 11:31:04 -0800 | [diff] [blame] | 1518 | if (user_stack == 0) { |
| 1519 | /* Ensure only one heartbeat mode */ |
| 1520 | tmp = mopt->mount_opt & (OCFS2_MOUNT_HB_LOCAL | |
| 1521 | OCFS2_MOUNT_HB_GLOBAL | |
| 1522 | OCFS2_MOUNT_HB_NONE); |
| 1523 | if (hweight32(tmp) != 1) { |
| 1524 | mlog(ML_ERROR, "Invalid heartbeat mount options\n"); |
| 1525 | status = 0; |
| 1526 | goto bail; |
| 1527 | } |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 1528 | } |
| 1529 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1530 | status = 1; |
| 1531 | |
| 1532 | bail: |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1533 | return status; |
| 1534 | } |
| 1535 | |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1536 | static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) |
| 1537 | { |
| 1538 | struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); |
| 1539 | unsigned long opts = osb->s_mount_opt; |
Mark Fasheh | ebcee4b | 2008-07-28 14:55:20 -0700 | [diff] [blame] | 1540 | unsigned int local_alloc_megs; |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1541 | |
Sunil Mushran | 2c44271 | 2010-10-07 15:23:50 -0700 | [diff] [blame] | 1542 | if (opts & (OCFS2_MOUNT_HB_LOCAL | OCFS2_MOUNT_HB_GLOBAL)) { |
| 1543 | seq_printf(s, ",_netdev"); |
| 1544 | if (opts & OCFS2_MOUNT_HB_LOCAL) |
| 1545 | seq_printf(s, ",%s", OCFS2_HB_LOCAL); |
| 1546 | else |
| 1547 | seq_printf(s, ",%s", OCFS2_HB_GLOBAL); |
| 1548 | } else |
| 1549 | seq_printf(s, ",%s", OCFS2_HB_NONE); |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1550 | |
| 1551 | if (opts & OCFS2_MOUNT_NOINTR) |
| 1552 | seq_printf(s, ",nointr"); |
| 1553 | |
| 1554 | if (opts & OCFS2_MOUNT_DATA_WRITEBACK) |
| 1555 | seq_printf(s, ",data=writeback"); |
| 1556 | else |
| 1557 | seq_printf(s, ",data=ordered"); |
| 1558 | |
| 1559 | if (opts & OCFS2_MOUNT_BARRIER) |
| 1560 | seq_printf(s, ",barrier=1"); |
| 1561 | |
| 1562 | if (opts & OCFS2_MOUNT_ERRORS_PANIC) |
| 1563 | seq_printf(s, ",errors=panic"); |
| 1564 | else |
| 1565 | seq_printf(s, ",errors=remount-ro"); |
| 1566 | |
| 1567 | if (osb->preferred_slot != OCFS2_INVALID_SLOT) |
| 1568 | seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); |
| 1569 | |
Tiger Yang | e2b0c21 | 2011-03-02 19:32:09 +0800 | [diff] [blame] | 1570 | if (!(mnt->mnt_flags & MNT_NOATIME) && !(mnt->mnt_flags & MNT_RELATIME)) |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1571 | seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); |
| 1572 | |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1573 | if (osb->osb_commit_interval) |
| 1574 | seq_printf(s, ",commit=%u", |
| 1575 | (unsigned) (osb->osb_commit_interval / HZ)); |
| 1576 | |
Mark Fasheh | ebcee4b | 2008-07-28 14:55:20 -0700 | [diff] [blame] | 1577 | local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); |
Mark Fasheh | 6b82021 | 2010-04-05 18:17:14 -0700 | [diff] [blame] | 1578 | if (local_alloc_megs != ocfs2_la_default_mb(osb)) |
Mark Fasheh | ebcee4b | 2008-07-28 14:55:20 -0700 | [diff] [blame] | 1579 | seq_printf(s, ",localalloc=%d", local_alloc_megs); |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 1580 | |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 1581 | if (opts & OCFS2_MOUNT_LOCALFLOCKS) |
| 1582 | seq_printf(s, ",localflocks,"); |
| 1583 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1584 | if (osb->osb_cluster_stack[0]) |
| 1585 | seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, |
| 1586 | osb->osb_cluster_stack); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1587 | if (opts & OCFS2_MOUNT_USRQUOTA) |
| 1588 | seq_printf(s, ",usrquota"); |
| 1589 | if (opts & OCFS2_MOUNT_GRPQUOTA) |
| 1590 | seq_printf(s, ",grpquota"); |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1591 | |
Tristan Ye | 7bdb0d1 | 2010-10-11 16:46:39 +0800 | [diff] [blame] | 1592 | if (opts & OCFS2_MOUNT_COHERENCY_BUFFERED) |
| 1593 | seq_printf(s, ",coherency=buffered"); |
| 1594 | else |
| 1595 | seq_printf(s, ",coherency=full"); |
| 1596 | |
Sunil Mushran | b0f73cf | 2008-09-05 11:29:14 -0700 | [diff] [blame] | 1597 | if (opts & OCFS2_MOUNT_NOUSERXATTR) |
| 1598 | seq_printf(s, ",nouser_xattr"); |
| 1599 | else |
| 1600 | seq_printf(s, ",user_xattr"); |
| 1601 | |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 1602 | if (opts & OCFS2_MOUNT_INODE64) |
| 1603 | seq_printf(s, ",inode64"); |
| 1604 | |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1605 | if (opts & OCFS2_MOUNT_POSIX_ACL) |
| 1606 | seq_printf(s, ",acl"); |
| 1607 | else |
| 1608 | seq_printf(s, ",noacl"); |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1609 | |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 1610 | if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) |
| 1611 | seq_printf(s, ",resv_level=%d", osb->osb_resv_level); |
| 1612 | |
Mark Fasheh | 83f9231 | 2010-04-05 18:17:16 -0700 | [diff] [blame] | 1613 | if (osb->osb_dir_resv_level != osb->osb_resv_level) |
| 1614 | seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); |
| 1615 | |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1616 | return 0; |
| 1617 | } |
| 1618 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1619 | static int __init ocfs2_init(void) |
| 1620 | { |
| 1621 | int status; |
| 1622 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1623 | ocfs2_print_version(); |
| 1624 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1625 | status = init_ocfs2_uptodate_cache(); |
| 1626 | if (status < 0) { |
| 1627 | mlog_errno(status); |
| 1628 | goto leave; |
| 1629 | } |
| 1630 | |
| 1631 | status = ocfs2_initialize_mem_caches(); |
| 1632 | if (status < 0) { |
| 1633 | mlog_errno(status); |
| 1634 | goto leave; |
| 1635 | } |
| 1636 | |
| 1637 | ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); |
| 1638 | if (!ocfs2_wq) { |
| 1639 | status = -ENOMEM; |
| 1640 | goto leave; |
| 1641 | } |
| 1642 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1643 | ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); |
| 1644 | if (!ocfs2_debugfs_root) { |
| 1645 | status = -EFAULT; |
| 1646 | mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); |
| 1647 | } |
| 1648 | |
Joel Becker | 63e0c48 | 2008-01-30 16:58:36 -0800 | [diff] [blame] | 1649 | ocfs2_set_locking_protocol(); |
| 1650 | |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1651 | status = register_quota_format(&ocfs2_quota_format); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1652 | leave: |
| 1653 | if (status < 0) { |
| 1654 | ocfs2_free_mem_caches(); |
| 1655 | exit_ocfs2_uptodate_cache(); |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 1656 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1657 | } |
| 1658 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1659 | if (status >= 0) { |
| 1660 | return register_filesystem(&ocfs2_fs_type); |
| 1661 | } else |
| 1662 | return -1; |
| 1663 | } |
| 1664 | |
| 1665 | static void __exit ocfs2_exit(void) |
| 1666 | { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1667 | if (ocfs2_wq) { |
| 1668 | flush_workqueue(ocfs2_wq); |
| 1669 | destroy_workqueue(ocfs2_wq); |
| 1670 | } |
| 1671 | |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1672 | unregister_quota_format(&ocfs2_quota_format); |
| 1673 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1674 | debugfs_remove(ocfs2_debugfs_root); |
| 1675 | |
| 1676 | ocfs2_free_mem_caches(); |
| 1677 | |
| 1678 | unregister_filesystem(&ocfs2_fs_type); |
| 1679 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1680 | exit_ocfs2_uptodate_cache(); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1681 | } |
| 1682 | |
| 1683 | static void ocfs2_put_super(struct super_block *sb) |
| 1684 | { |
Tao Ma | 32a42d3 | 2011-02-23 21:29:08 +0800 | [diff] [blame] | 1685 | trace_ocfs2_put_super(sb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1686 | |
| 1687 | ocfs2_sync_blockdev(sb); |
| 1688 | ocfs2_dismount_volume(sb, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1689 | } |
| 1690 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1691 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1692 | { |
| 1693 | struct ocfs2_super *osb; |
| 1694 | u32 numbits, freebits; |
| 1695 | int status; |
| 1696 | struct ocfs2_dinode *bm_lock; |
| 1697 | struct buffer_head *bh = NULL; |
| 1698 | struct inode *inode = NULL; |
| 1699 | |
Tao Ma | 32a42d3 | 2011-02-23 21:29:08 +0800 | [diff] [blame] | 1700 | trace_ocfs2_statfs(dentry->d_sb, buf); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1701 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1702 | osb = OCFS2_SB(dentry->d_sb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1703 | |
| 1704 | inode = ocfs2_get_system_file_inode(osb, |
| 1705 | GLOBAL_BITMAP_SYSTEM_INODE, |
| 1706 | OCFS2_INVALID_SLOT); |
| 1707 | if (!inode) { |
| 1708 | mlog(ML_ERROR, "failed to get bitmap inode\n"); |
| 1709 | status = -EIO; |
| 1710 | goto bail; |
| 1711 | } |
| 1712 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1713 | status = ocfs2_inode_lock(inode, &bh, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1714 | if (status < 0) { |
| 1715 | mlog_errno(status); |
| 1716 | goto bail; |
| 1717 | } |
| 1718 | |
| 1719 | bm_lock = (struct ocfs2_dinode *) bh->b_data; |
| 1720 | |
| 1721 | numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); |
| 1722 | freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); |
| 1723 | |
| 1724 | buf->f_type = OCFS2_SUPER_MAGIC; |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1725 | buf->f_bsize = dentry->d_sb->s_blocksize; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1726 | buf->f_namelen = OCFS2_MAX_FILENAME_LEN; |
| 1727 | buf->f_blocks = ((sector_t) numbits) * |
| 1728 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); |
| 1729 | buf->f_bfree = ((sector_t) freebits) * |
| 1730 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); |
| 1731 | buf->f_bavail = buf->f_bfree; |
| 1732 | buf->f_files = numbits; |
| 1733 | buf->f_ffree = freebits; |
Coly Li | 837711f | 2009-01-16 16:33:05 +0800 | [diff] [blame] | 1734 | buf->f_fsid.val[0] = crc32_le(0, osb->uuid_str, OCFS2_VOL_UUID_LEN) |
| 1735 | & 0xFFFFFFFFUL; |
| 1736 | buf->f_fsid.val[1] = crc32_le(0, osb->uuid_str + OCFS2_VOL_UUID_LEN, |
| 1737 | OCFS2_VOL_UUID_LEN) & 0xFFFFFFFFUL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1738 | |
| 1739 | brelse(bh); |
| 1740 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1741 | ocfs2_inode_unlock(inode, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1742 | status = 0; |
| 1743 | bail: |
| 1744 | if (inode) |
| 1745 | iput(inode); |
| 1746 | |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 1747 | if (status) |
| 1748 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1749 | |
| 1750 | return status; |
| 1751 | } |
| 1752 | |
Alexey Dobriyan | 51cc506 | 2008-07-25 19:45:34 -0700 | [diff] [blame] | 1753 | static void ocfs2_inode_init_once(void *data) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1754 | { |
| 1755 | struct ocfs2_inode_info *oi = data; |
| 1756 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1757 | oi->ip_flags = 0; |
| 1758 | oi->ip_open_count = 0; |
| 1759 | spin_lock_init(&oi->ip_lock); |
| 1760 | ocfs2_extent_map_init(&oi->vfs_inode); |
| 1761 | INIT_LIST_HEAD(&oi->ip_io_markers); |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1762 | oi->ip_dir_start_lookup = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1763 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1764 | init_rwsem(&oi->ip_alloc_sem); |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 1765 | init_rwsem(&oi->ip_xattr_sem); |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1766 | mutex_init(&oi->ip_io_mutex); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1767 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1768 | oi->ip_blkno = 0ULL; |
| 1769 | oi->ip_clusters = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1770 | |
Mark Fasheh | 4fe370a | 2009-12-07 13:15:40 -0800 | [diff] [blame] | 1771 | ocfs2_resv_init_once(&oi->ip_la_data_resv); |
| 1772 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1773 | ocfs2_lock_res_init_once(&oi->ip_rw_lockres); |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1774 | ocfs2_lock_res_init_once(&oi->ip_inode_lockres); |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1775 | ocfs2_lock_res_init_once(&oi->ip_open_lockres); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1776 | |
Joel Becker | 8cb471e | 2009-02-10 20:00:41 -0800 | [diff] [blame] | 1777 | ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), |
Joel Becker | 6e5a3d7 | 2009-02-10 19:00:37 -0800 | [diff] [blame] | 1778 | &ocfs2_inode_caching_ops); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1779 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1780 | inode_init_once(&oi->vfs_inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1781 | } |
| 1782 | |
| 1783 | static int ocfs2_initialize_mem_caches(void) |
| 1784 | { |
| 1785 | ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", |
Paul Jackson | fffb60f | 2006-03-24 03:16:06 -0800 | [diff] [blame] | 1786 | sizeof(struct ocfs2_inode_info), |
| 1787 | 0, |
| 1788 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| |
| 1789 | SLAB_MEM_SPREAD), |
Paul Mundt | 20c2df8 | 2007-07-20 10:11:58 +0900 | [diff] [blame] | 1790 | ocfs2_inode_init_once); |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1791 | ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", |
| 1792 | sizeof(struct ocfs2_dquot), |
| 1793 | 0, |
| 1794 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| |
| 1795 | SLAB_MEM_SPREAD), |
| 1796 | NULL); |
| 1797 | ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", |
| 1798 | sizeof(struct ocfs2_quota_chunk), |
| 1799 | 0, |
| 1800 | (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), |
| 1801 | NULL); |
| 1802 | if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || |
| 1803 | !ocfs2_qf_chunk_cachep) { |
| 1804 | if (ocfs2_inode_cachep) |
| 1805 | kmem_cache_destroy(ocfs2_inode_cachep); |
| 1806 | if (ocfs2_dquot_cachep) |
| 1807 | kmem_cache_destroy(ocfs2_dquot_cachep); |
| 1808 | if (ocfs2_qf_chunk_cachep) |
| 1809 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1810 | return -ENOMEM; |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1811 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1812 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1813 | return 0; |
| 1814 | } |
| 1815 | |
| 1816 | static void ocfs2_free_mem_caches(void) |
| 1817 | { |
| 1818 | if (ocfs2_inode_cachep) |
| 1819 | kmem_cache_destroy(ocfs2_inode_cachep); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1820 | ocfs2_inode_cachep = NULL; |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1821 | |
| 1822 | if (ocfs2_dquot_cachep) |
| 1823 | kmem_cache_destroy(ocfs2_dquot_cachep); |
| 1824 | ocfs2_dquot_cachep = NULL; |
| 1825 | |
| 1826 | if (ocfs2_qf_chunk_cachep) |
| 1827 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); |
| 1828 | ocfs2_qf_chunk_cachep = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1829 | } |
| 1830 | |
| 1831 | static int ocfs2_get_sector(struct super_block *sb, |
| 1832 | struct buffer_head **bh, |
| 1833 | int block, |
| 1834 | int sect_size) |
| 1835 | { |
| 1836 | if (!sb_set_blocksize(sb, sect_size)) { |
| 1837 | mlog(ML_ERROR, "unable to set blocksize\n"); |
| 1838 | return -EIO; |
| 1839 | } |
| 1840 | |
| 1841 | *bh = sb_getblk(sb, block); |
| 1842 | if (!*bh) { |
| 1843 | mlog_errno(-EIO); |
| 1844 | return -EIO; |
| 1845 | } |
| 1846 | lock_buffer(*bh); |
| 1847 | if (!buffer_dirty(*bh)) |
| 1848 | clear_buffer_uptodate(*bh); |
| 1849 | unlock_buffer(*bh); |
| 1850 | ll_rw_block(READ, 1, bh); |
| 1851 | wait_on_buffer(*bh); |
wengang wang | 28d57d4 | 2009-02-13 10:11:47 +0800 | [diff] [blame] | 1852 | if (!buffer_uptodate(*bh)) { |
| 1853 | mlog_errno(-EIO); |
| 1854 | brelse(*bh); |
| 1855 | *bh = NULL; |
| 1856 | return -EIO; |
| 1857 | } |
| 1858 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1859 | return 0; |
| 1860 | } |
| 1861 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1862 | static int ocfs2_mount_volume(struct super_block *sb) |
| 1863 | { |
| 1864 | int status = 0; |
| 1865 | int unlock_super = 0; |
| 1866 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 1867 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1868 | if (ocfs2_is_hard_readonly(osb)) |
| 1869 | goto leave; |
| 1870 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1871 | status = ocfs2_dlm_init(osb); |
| 1872 | if (status < 0) { |
| 1873 | mlog_errno(status); |
| 1874 | goto leave; |
| 1875 | } |
| 1876 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1877 | status = ocfs2_super_lock(osb, 1); |
| 1878 | if (status < 0) { |
| 1879 | mlog_errno(status); |
| 1880 | goto leave; |
| 1881 | } |
| 1882 | unlock_super = 1; |
| 1883 | |
| 1884 | /* This will load up the node map and add ourselves to it. */ |
| 1885 | status = ocfs2_find_slot(osb); |
| 1886 | if (status < 0) { |
| 1887 | mlog_errno(status); |
| 1888 | goto leave; |
| 1889 | } |
| 1890 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1891 | /* load all node-local system inodes */ |
| 1892 | status = ocfs2_init_local_system_inodes(osb); |
| 1893 | if (status < 0) { |
| 1894 | mlog_errno(status); |
| 1895 | goto leave; |
| 1896 | } |
| 1897 | |
| 1898 | status = ocfs2_check_volume(osb); |
| 1899 | if (status < 0) { |
| 1900 | mlog_errno(status); |
| 1901 | goto leave; |
| 1902 | } |
| 1903 | |
| 1904 | status = ocfs2_truncate_log_init(osb); |
Tao Ma | 06c59bb | 2009-05-19 06:47:20 +0800 | [diff] [blame] | 1905 | if (status < 0) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1906 | mlog_errno(status); |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1907 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1908 | leave: |
| 1909 | if (unlock_super) |
| 1910 | ocfs2_super_unlock(osb, 1); |
| 1911 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1912 | return status; |
| 1913 | } |
| 1914 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1915 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) |
| 1916 | { |
Joel Becker | 286eaa9 | 2008-02-01 15:03:57 -0800 | [diff] [blame] | 1917 | int tmp, hangup_needed = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1918 | struct ocfs2_super *osb = NULL; |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1919 | char nodestr[8]; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1920 | |
Tao Ma | 32a42d3 | 2011-02-23 21:29:08 +0800 | [diff] [blame] | 1921 | trace_ocfs2_dismount_volume(sb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1922 | |
| 1923 | BUG_ON(!sb); |
| 1924 | osb = OCFS2_SB(sb); |
| 1925 | BUG_ON(!osb); |
| 1926 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 1927 | debugfs_remove(osb->osb_ctxt); |
| 1928 | |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1929 | /* |
| 1930 | * Flush inode dropping work queue so that deletes are |
| 1931 | * performed while the filesystem is still working |
| 1932 | */ |
| 1933 | ocfs2_drop_all_dl_inodes(osb); |
| 1934 | |
Sunil Mushran | 692684e | 2009-06-19 16:53:17 -0700 | [diff] [blame] | 1935 | /* Orphan scan should be stopped as early as possible */ |
| 1936 | ocfs2_orphan_scan_stop(osb); |
| 1937 | |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1938 | ocfs2_disable_quotas(osb); |
| 1939 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1940 | ocfs2_shutdown_local_alloc(osb); |
| 1941 | |
| 1942 | ocfs2_truncate_log_shutdown(osb); |
| 1943 | |
Joel Becker | 553abd0 | 2008-02-01 12:03:57 -0800 | [diff] [blame] | 1944 | /* This will disable recovery and flush any recovery work. */ |
| 1945 | ocfs2_recovery_exit(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1946 | |
| 1947 | ocfs2_journal_shutdown(osb); |
| 1948 | |
| 1949 | ocfs2_sync_blockdev(sb); |
| 1950 | |
Tao Ma | 374a263 | 2009-08-24 11:13:37 +0800 | [diff] [blame] | 1951 | ocfs2_purge_refcount_trees(osb); |
| 1952 | |
Joel Becker | 4670c46 | 2008-02-01 14:39:35 -0800 | [diff] [blame] | 1953 | /* No cluster connection means we've failed during mount, so skip |
| 1954 | * all the steps which depended on that to complete. */ |
| 1955 | if (osb->cconn) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1956 | tmp = ocfs2_super_lock(osb, 1); |
| 1957 | if (tmp < 0) { |
| 1958 | mlog_errno(tmp); |
| 1959 | return; |
| 1960 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1961 | } |
| 1962 | |
Mark Fasheh | 19b613d | 2007-10-04 14:47:09 -0700 | [diff] [blame] | 1963 | if (osb->slot_num != OCFS2_INVALID_SLOT) |
| 1964 | ocfs2_put_slot(osb); |
| 1965 | |
Joel Becker | 4670c46 | 2008-02-01 14:39:35 -0800 | [diff] [blame] | 1966 | if (osb->cconn) |
Mark Fasheh | 19b613d | 2007-10-04 14:47:09 -0700 | [diff] [blame] | 1967 | ocfs2_super_unlock(osb, 1); |
| 1968 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1969 | ocfs2_release_system_inodes(osb); |
| 1970 | |
Joel Becker | 6953b4c | 2008-01-29 16:59:56 -0800 | [diff] [blame] | 1971 | /* |
Joel Becker | 6953b4c | 2008-01-29 16:59:56 -0800 | [diff] [blame] | 1972 | * If we're dismounting due to mount error, mount.ocfs2 will clean |
| 1973 | * up heartbeat. If we're a local mount, there is no heartbeat. |
| 1974 | * If we failed before we got a uuid_str yet, we can't stop |
| 1975 | * heartbeat. Otherwise, do it. |
| 1976 | */ |
| 1977 | if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) |
Joel Becker | 286eaa9 | 2008-02-01 15:03:57 -0800 | [diff] [blame] | 1978 | hangup_needed = 1; |
| 1979 | |
| 1980 | if (osb->cconn) |
| 1981 | ocfs2_dlm_shutdown(osb, hangup_needed); |
| 1982 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1983 | ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); |
Joel Becker | 286eaa9 | 2008-02-01 15:03:57 -0800 | [diff] [blame] | 1984 | debugfs_remove(osb->osb_debug_root); |
| 1985 | |
| 1986 | if (hangup_needed) |
Joel Becker | 6953b4c | 2008-01-29 16:59:56 -0800 | [diff] [blame] | 1987 | ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1988 | |
| 1989 | atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); |
| 1990 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1991 | if (ocfs2_mount_local(osb)) |
| 1992 | snprintf(nodestr, sizeof(nodestr), "local"); |
| 1993 | else |
Joel Becker | 19fdb62 | 2008-01-30 15:38:24 -0800 | [diff] [blame] | 1994 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1995 | |
| 1996 | printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", |
| 1997 | osb->dev_str, nodestr); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1998 | |
| 1999 | ocfs2_delete_osb(osb); |
| 2000 | kfree(osb); |
| 2001 | sb->s_dev = 0; |
| 2002 | sb->s_fs_info = NULL; |
| 2003 | } |
| 2004 | |
| 2005 | static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, |
| 2006 | unsigned uuid_bytes) |
| 2007 | { |
| 2008 | int i, ret; |
| 2009 | char *ptr; |
| 2010 | |
| 2011 | BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); |
| 2012 | |
Robert P. J. Day | cd86128 | 2006-12-13 00:34:52 -0800 | [diff] [blame] | 2013 | osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2014 | if (osb->uuid_str == NULL) |
| 2015 | return -ENOMEM; |
| 2016 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2017 | for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { |
| 2018 | /* print with null */ |
| 2019 | ret = snprintf(ptr, 3, "%02X", uuid[i]); |
| 2020 | if (ret != 2) /* drop super cleans up */ |
| 2021 | return -EINVAL; |
| 2022 | /* then only advance past the last char */ |
| 2023 | ptr += 2; |
| 2024 | } |
| 2025 | |
| 2026 | return 0; |
| 2027 | } |
| 2028 | |
Patrick J. LoPresti | 3bdb8ef | 2010-07-22 15:05:57 -0700 | [diff] [blame] | 2029 | /* Make sure entire volume is addressable by our journal. Requires |
| 2030 | osb_clusters_at_boot to be valid and for the journal to have been |
| 2031 | initialized by ocfs2_journal_init(). */ |
| 2032 | static int ocfs2_journal_addressable(struct ocfs2_super *osb) |
| 2033 | { |
| 2034 | int status = 0; |
| 2035 | u64 max_block = |
| 2036 | ocfs2_clusters_to_blocks(osb->sb, |
| 2037 | osb->osb_clusters_at_boot) - 1; |
| 2038 | |
| 2039 | /* 32-bit block number is always OK. */ |
| 2040 | if (max_block <= (u32)~0ULL) |
| 2041 | goto out; |
| 2042 | |
| 2043 | /* Volume is "huge", so see if our journal is new enough to |
| 2044 | support it. */ |
| 2045 | if (!(OCFS2_HAS_COMPAT_FEATURE(osb->sb, |
| 2046 | OCFS2_FEATURE_COMPAT_JBD2_SB) && |
| 2047 | jbd2_journal_check_used_features(osb->journal->j_journal, 0, 0, |
| 2048 | JBD2_FEATURE_INCOMPAT_64BIT))) { |
| 2049 | mlog(ML_ERROR, "The journal cannot address the entire volume. " |
| 2050 | "Enable the 'block64' journal option with tunefs.ocfs2"); |
| 2051 | status = -EFBIG; |
| 2052 | goto out; |
| 2053 | } |
| 2054 | |
| 2055 | out: |
| 2056 | return status; |
| 2057 | } |
| 2058 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2059 | static int ocfs2_initialize_super(struct super_block *sb, |
| 2060 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 2061 | int sector_size, |
| 2062 | struct ocfs2_blockcheck_stats *stats) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2063 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 2064 | int status; |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 2065 | int i, cbits, bbits; |
| 2066 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2067 | struct inode *inode = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2068 | struct ocfs2_journal *journal; |
| 2069 | __le32 uuid_net_key; |
| 2070 | struct ocfs2_super *osb; |
Patrick J. LoPresti | 3bdb8ef | 2010-07-22 15:05:57 -0700 | [diff] [blame] | 2071 | u64 total_blocks; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2072 | |
Robert P. J. Day | cd86128 | 2006-12-13 00:34:52 -0800 | [diff] [blame] | 2073 | osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2074 | if (!osb) { |
| 2075 | status = -ENOMEM; |
| 2076 | mlog_errno(status); |
| 2077 | goto bail; |
| 2078 | } |
| 2079 | |
| 2080 | sb->s_fs_info = osb; |
| 2081 | sb->s_op = &ocfs2_sops; |
Al Viro | ba87167 | 2010-12-18 12:10:00 -0500 | [diff] [blame] | 2082 | sb->s_d_op = &ocfs2_dentry_ops; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2083 | sb->s_export_op = &ocfs2_export_ops; |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 2084 | sb->s_qcop = &ocfs2_quotactl_ops; |
| 2085 | sb->dq_op = &ocfs2_quota_operations; |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 2086 | sb->s_xattr = ocfs2_xattr_handlers; |
Mark Fasheh | e0dceaf | 2007-08-09 16:52:30 -0700 | [diff] [blame] | 2087 | sb->s_time_gran = 1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2088 | sb->s_flags |= MS_NOATIME; |
| 2089 | /* this is needed to support O_LARGEFILE */ |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 2090 | cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); |
| 2091 | bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); |
| 2092 | sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2093 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 2094 | osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; |
| 2095 | |
| 2096 | for (i = 0; i < 3; i++) |
| 2097 | osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); |
| 2098 | osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); |
| 2099 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2100 | osb->sb = sb; |
| 2101 | /* Save off for ocfs2_rw_direct */ |
| 2102 | osb->s_sectsize_bits = blksize_bits(sector_size); |
Eric Sesterhenn / snakebyte | ebdec83 | 2006-01-27 10:32:52 +0100 | [diff] [blame] | 2103 | BUG_ON(!osb->s_sectsize_bits); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2104 | |
Mark Fasheh | 34d024f | 2007-09-24 15:56:19 -0700 | [diff] [blame] | 2105 | spin_lock_init(&osb->dc_task_lock); |
| 2106 | init_waitqueue_head(&osb->dc_event); |
| 2107 | osb->dc_work_sequence = 0; |
| 2108 | osb->dc_wake_sequence = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2109 | INIT_LIST_HEAD(&osb->blocked_lock_list); |
| 2110 | osb->blocked_lock_count = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2111 | spin_lock_init(&osb->osb_lock); |
Tao Ma | c8b9cf9 | 2009-02-24 17:40:26 -0800 | [diff] [blame] | 2112 | spin_lock_init(&osb->osb_xattr_lock); |
Tiger Yang | b89c542 | 2010-01-25 14:11:06 +0800 | [diff] [blame] | 2113 | ocfs2_init_steal_slots(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2114 | |
| 2115 | atomic_set(&osb->alloc_stats.moves, 0); |
| 2116 | atomic_set(&osb->alloc_stats.local_data, 0); |
| 2117 | atomic_set(&osb->alloc_stats.bitmap_data, 0); |
| 2118 | atomic_set(&osb->alloc_stats.bg_allocs, 0); |
| 2119 | atomic_set(&osb->alloc_stats.bg_extends, 0); |
| 2120 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 2121 | /* Copy the blockcheck stats from the superblock probe */ |
| 2122 | osb->osb_ecc_stats = *stats; |
| 2123 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2124 | ocfs2_init_node_maps(osb); |
| 2125 | |
| 2126 | snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", |
| 2127 | MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); |
| 2128 | |
Goldwyn Rodrigues | 75d9bbc | 2010-10-11 12:57:09 -0500 | [diff] [blame] | 2129 | osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); |
| 2130 | if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { |
| 2131 | mlog(ML_ERROR, "Invalid number of node slots (%u)\n", |
| 2132 | osb->max_slots); |
| 2133 | status = -EINVAL; |
| 2134 | goto bail; |
| 2135 | } |
Goldwyn Rodrigues | 75d9bbc | 2010-10-11 12:57:09 -0500 | [diff] [blame] | 2136 | |
Jeff Mahoney | 8b712cd | 2009-07-07 17:22:12 -0400 | [diff] [blame] | 2137 | ocfs2_orphan_scan_init(osb); |
| 2138 | |
Joel Becker | 553abd0 | 2008-02-01 12:03:57 -0800 | [diff] [blame] | 2139 | status = ocfs2_recovery_init(osb); |
| 2140 | if (status) { |
| 2141 | mlog(ML_ERROR, "Unable to initialize recovery state\n"); |
| 2142 | mlog_errno(status); |
| 2143 | goto bail; |
| 2144 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2145 | |
| 2146 | init_waitqueue_head(&osb->checkpoint_event); |
| 2147 | atomic_set(&osb->needs_checkpoint, 0); |
| 2148 | |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 2149 | osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
| 2150 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2151 | osb->slot_num = OCFS2_INVALID_SLOT; |
| 2152 | |
Tiger Yang | 8154da3 | 2008-08-18 17:11:46 +0800 | [diff] [blame] | 2153 | osb->s_xattr_inline_size = le16_to_cpu( |
| 2154 | di->id2.i_super.s_xattr_inline_size); |
Tiger Yang | fdd7770 | 2008-08-18 17:08:55 +0800 | [diff] [blame] | 2155 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2156 | osb->local_alloc_state = OCFS2_LA_UNUSED; |
| 2157 | osb->local_alloc_bh = NULL; |
Mark Fasheh | 9c7af40 | 2008-07-28 18:02:53 -0700 | [diff] [blame] | 2158 | INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2159 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2160 | init_waitqueue_head(&osb->osb_mount_event); |
| 2161 | |
Mark Fasheh | d02f00c | 2009-12-07 13:10:48 -0800 | [diff] [blame] | 2162 | status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); |
| 2163 | if (status) { |
| 2164 | mlog_errno(status); |
| 2165 | goto bail; |
| 2166 | } |
| 2167 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2168 | osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); |
| 2169 | if (!osb->vol_label) { |
| 2170 | mlog(ML_ERROR, "unable to alloc vol label\n"); |
| 2171 | status = -ENOMEM; |
| 2172 | goto bail; |
| 2173 | } |
| 2174 | |
Sunil Mushran | 539d826 | 2008-07-14 17:31:10 -0700 | [diff] [blame] | 2175 | osb->slot_recovery_generations = |
| 2176 | kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), |
| 2177 | GFP_KERNEL); |
| 2178 | if (!osb->slot_recovery_generations) { |
| 2179 | status = -ENOMEM; |
| 2180 | mlog_errno(status); |
| 2181 | goto bail; |
| 2182 | } |
| 2183 | |
Mark Fasheh | b4df6ed | 2006-02-22 17:35:08 -0800 | [diff] [blame] | 2184 | init_waitqueue_head(&osb->osb_wipe_event); |
| 2185 | osb->osb_orphan_wipes = kcalloc(osb->max_slots, |
| 2186 | sizeof(*osb->osb_orphan_wipes), |
| 2187 | GFP_KERNEL); |
| 2188 | if (!osb->osb_orphan_wipes) { |
| 2189 | status = -ENOMEM; |
| 2190 | mlog_errno(status); |
| 2191 | goto bail; |
| 2192 | } |
| 2193 | |
Tao Ma | 374a263 | 2009-08-24 11:13:37 +0800 | [diff] [blame] | 2194 | osb->osb_rf_lock_tree = RB_ROOT; |
| 2195 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2196 | osb->s_feature_compat = |
| 2197 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); |
| 2198 | osb->s_feature_ro_compat = |
| 2199 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); |
| 2200 | osb->s_feature_incompat = |
| 2201 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); |
| 2202 | |
| 2203 | if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { |
| 2204 | mlog(ML_ERROR, "couldn't mount because of unsupported " |
| 2205 | "optional features (%x).\n", i); |
| 2206 | status = -EINVAL; |
| 2207 | goto bail; |
| 2208 | } |
| 2209 | if (!(osb->sb->s_flags & MS_RDONLY) && |
| 2210 | (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { |
| 2211 | mlog(ML_ERROR, "couldn't mount RDWR because of " |
| 2212 | "unsupported optional features (%x).\n", i); |
| 2213 | status = -EINVAL; |
| 2214 | goto bail; |
| 2215 | } |
| 2216 | |
Sunil Mushran | 98f486f | 2010-10-09 10:24:46 -0700 | [diff] [blame] | 2217 | if (ocfs2_clusterinfo_valid(osb)) { |
| 2218 | osb->osb_stackflags = |
| 2219 | OCFS2_RAW_SB(di)->s_cluster_info.ci_stackflags; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 2220 | memcpy(osb->osb_cluster_stack, |
| 2221 | OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, |
| 2222 | OCFS2_STACK_LABEL_LEN); |
| 2223 | osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; |
| 2224 | if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { |
| 2225 | mlog(ML_ERROR, |
| 2226 | "couldn't mount because of an invalid " |
| 2227 | "cluster stack label (%s) \n", |
| 2228 | osb->osb_cluster_stack); |
| 2229 | status = -EINVAL; |
| 2230 | goto bail; |
| 2231 | } |
| 2232 | } else { |
| 2233 | /* The empty string is identical with classic tools that |
| 2234 | * don't know about s_cluster_info. */ |
| 2235 | osb->osb_cluster_stack[0] = '\0'; |
| 2236 | } |
| 2237 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2238 | get_random_bytes(&osb->s_next_generation, sizeof(u32)); |
| 2239 | |
| 2240 | /* FIXME |
| 2241 | * This should be done in ocfs2_journal_init(), but unknown |
| 2242 | * ordering issues will cause the filesystem to crash. |
| 2243 | * If anyone wants to figure out what part of the code |
| 2244 | * refers to osb->journal before ocfs2_journal_init() is run, |
| 2245 | * be my guest. |
| 2246 | */ |
| 2247 | /* initialize our journal structure */ |
| 2248 | |
Robert P. J. Day | cd86128 | 2006-12-13 00:34:52 -0800 | [diff] [blame] | 2249 | journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2250 | if (!journal) { |
| 2251 | mlog(ML_ERROR, "unable to alloc journal\n"); |
| 2252 | status = -ENOMEM; |
| 2253 | goto bail; |
| 2254 | } |
| 2255 | osb->journal = journal; |
| 2256 | journal->j_osb = osb; |
| 2257 | |
| 2258 | atomic_set(&journal->j_num_trans, 0); |
| 2259 | init_rwsem(&journal->j_trans_barrier); |
| 2260 | init_waitqueue_head(&journal->j_checkpointed); |
| 2261 | spin_lock_init(&journal->j_lock); |
| 2262 | journal->j_trans_id = (unsigned long) 1; |
| 2263 | INIT_LIST_HEAD(&journal->j_la_cleanups); |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2264 | INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2265 | journal->j_state = OCFS2_JOURNAL_FREE; |
| 2266 | |
Jan Kara | ea455f8 | 2009-01-12 23:20:31 +0100 | [diff] [blame] | 2267 | INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); |
| 2268 | osb->dentry_lock_list = NULL; |
| 2269 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2270 | /* get some pseudo constants for clustersize bits */ |
| 2271 | osb->s_clustersize_bits = |
| 2272 | le32_to_cpu(di->id2.i_super.s_clustersize_bits); |
| 2273 | osb->s_clustersize = 1 << osb->s_clustersize_bits; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2274 | |
| 2275 | if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || |
| 2276 | osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { |
| 2277 | mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", |
| 2278 | osb->s_clustersize); |
| 2279 | status = -EINVAL; |
| 2280 | goto bail; |
| 2281 | } |
| 2282 | |
Patrick J. LoPresti | 3bdb8ef | 2010-07-22 15:05:57 -0700 | [diff] [blame] | 2283 | total_blocks = ocfs2_clusters_to_blocks(osb->sb, |
| 2284 | le32_to_cpu(di->i_clusters)); |
| 2285 | |
| 2286 | status = generic_check_addressable(osb->sb->s_blocksize_bits, |
| 2287 | total_blocks); |
| 2288 | if (status) { |
| 2289 | mlog(ML_ERROR, "Volume too large " |
| 2290 | "to mount safely on this system"); |
| 2291 | status = -EFBIG; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2292 | goto bail; |
| 2293 | } |
| 2294 | |
| 2295 | if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, |
| 2296 | sizeof(di->id2.i_super.s_uuid))) { |
| 2297 | mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); |
| 2298 | status = -ENOMEM; |
| 2299 | goto bail; |
| 2300 | } |
| 2301 | |
Mark Fasheh | 7842704 | 2006-05-04 12:03:26 -0700 | [diff] [blame] | 2302 | memcpy(&uuid_net_key, di->id2.i_super.s_uuid, sizeof(uuid_net_key)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2303 | |
| 2304 | strncpy(osb->vol_label, di->id2.i_super.s_label, 63); |
| 2305 | osb->vol_label[63] = '\0'; |
| 2306 | osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); |
| 2307 | osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); |
| 2308 | osb->first_cluster_group_blkno = |
| 2309 | le64_to_cpu(di->id2.i_super.s_first_cluster_group); |
| 2310 | osb->fs_generation = le32_to_cpu(di->i_fs_generation); |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 2311 | osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); |
Tao Ma | 32a42d3 | 2011-02-23 21:29:08 +0800 | [diff] [blame] | 2312 | trace_ocfs2_initialize_super(osb->vol_label, osb->uuid_str, |
| 2313 | (unsigned long long)osb->root_blkno, |
| 2314 | (unsigned long long)osb->system_dir_blkno, |
| 2315 | osb->s_clustersize_bits); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2316 | |
| 2317 | osb->osb_dlm_debug = ocfs2_new_dlm_debug(); |
| 2318 | if (!osb->osb_dlm_debug) { |
| 2319 | status = -ENOMEM; |
| 2320 | mlog_errno(status); |
| 2321 | goto bail; |
| 2322 | } |
| 2323 | |
| 2324 | atomic_set(&osb->vol_state, VOLUME_INIT); |
| 2325 | |
| 2326 | /* load root, system_dir, and all global system inodes */ |
| 2327 | status = ocfs2_init_global_system_inodes(osb); |
| 2328 | if (status < 0) { |
| 2329 | mlog_errno(status); |
| 2330 | goto bail; |
| 2331 | } |
| 2332 | |
| 2333 | /* |
| 2334 | * global bitmap |
| 2335 | */ |
| 2336 | inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, |
| 2337 | OCFS2_INVALID_SLOT); |
| 2338 | if (!inode) { |
| 2339 | status = -EINVAL; |
| 2340 | mlog_errno(status); |
| 2341 | goto bail; |
| 2342 | } |
| 2343 | |
| 2344 | osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; |
Mark Fasheh | 6b82021 | 2010-04-05 18:17:14 -0700 | [diff] [blame] | 2345 | osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2346 | iput(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2347 | |
Tao Ma | 8571882 | 2010-04-13 14:38:06 +0800 | [diff] [blame] | 2348 | osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0, |
| 2349 | osb->s_feature_incompat) * 8; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2350 | |
| 2351 | status = ocfs2_init_slot_info(osb); |
| 2352 | if (status < 0) { |
| 2353 | mlog_errno(status); |
| 2354 | goto bail; |
| 2355 | } |
Dan Magenheimer | 1cfd8bd | 2011-05-26 10:02:08 -0600 | [diff] [blame] | 2356 | cleancache_init_shared_fs((char *)&uuid_net_key, sb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2357 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2358 | bail: |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2359 | return status; |
| 2360 | } |
| 2361 | |
| 2362 | /* |
| 2363 | * will return: -EAGAIN if it is ok to keep searching for superblocks |
| 2364 | * -EINVAL if there is a bad superblock |
| 2365 | * 0 on success |
| 2366 | */ |
| 2367 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, |
| 2368 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 2369 | u32 blksz, |
| 2370 | struct ocfs2_blockcheck_stats *stats) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2371 | { |
| 2372 | int status = -EAGAIN; |
| 2373 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2374 | if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, |
| 2375 | strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 2376 | /* We have to do a raw check of the feature here */ |
| 2377 | if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & |
| 2378 | OCFS2_FEATURE_INCOMPAT_META_ECC) { |
| 2379 | status = ocfs2_block_check_validate(bh->b_data, |
| 2380 | bh->b_size, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 2381 | &di->i_check, |
| 2382 | stats); |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 2383 | if (status) |
| 2384 | goto out; |
| 2385 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2386 | status = -EINVAL; |
| 2387 | if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { |
| 2388 | mlog(ML_ERROR, "found superblock with incorrect block " |
| 2389 | "size: found %u, should be %u\n", |
| 2390 | 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), |
| 2391 | blksz); |
| 2392 | } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != |
| 2393 | OCFS2_MAJOR_REV_LEVEL || |
| 2394 | le16_to_cpu(di->id2.i_super.s_minor_rev_level) != |
| 2395 | OCFS2_MINOR_REV_LEVEL) { |
| 2396 | mlog(ML_ERROR, "found superblock with bad version: " |
| 2397 | "found %u.%u, should be %u.%u\n", |
| 2398 | le16_to_cpu(di->id2.i_super.s_major_rev_level), |
| 2399 | le16_to_cpu(di->id2.i_super.s_minor_rev_level), |
| 2400 | OCFS2_MAJOR_REV_LEVEL, |
| 2401 | OCFS2_MINOR_REV_LEVEL); |
| 2402 | } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { |
| 2403 | mlog(ML_ERROR, "bad block number on superblock: " |
Mark Fasheh | b069705 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 2404 | "found %llu, should be %llu\n", |
Mark Fasheh | 1ca1a11 | 2007-04-27 16:01:25 -0700 | [diff] [blame] | 2405 | (unsigned long long)le64_to_cpu(di->i_blkno), |
Mark Fasheh | b069705 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 2406 | (unsigned long long)bh->b_blocknr); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2407 | } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || |
| 2408 | le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { |
| 2409 | mlog(ML_ERROR, "bad cluster size found: %u\n", |
| 2410 | 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); |
| 2411 | } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { |
| 2412 | mlog(ML_ERROR, "bad root_blkno: 0\n"); |
| 2413 | } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { |
| 2414 | mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); |
| 2415 | } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { |
| 2416 | mlog(ML_ERROR, |
| 2417 | "Superblock slots found greater than file system " |
| 2418 | "maximum: found %u, max %u\n", |
| 2419 | le16_to_cpu(di->id2.i_super.s_max_slots), |
| 2420 | OCFS2_MAX_SLOTS); |
| 2421 | } else { |
| 2422 | /* found it! */ |
| 2423 | status = 0; |
| 2424 | } |
| 2425 | } |
| 2426 | |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 2427 | out: |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 2428 | if (status && status != -EAGAIN) |
| 2429 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2430 | return status; |
| 2431 | } |
| 2432 | |
| 2433 | static int ocfs2_check_volume(struct ocfs2_super *osb) |
| 2434 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 2435 | int status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2436 | int dirty; |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 2437 | int local; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2438 | struct ocfs2_dinode *local_alloc = NULL; /* only used if we |
| 2439 | * recover |
| 2440 | * ourselves. */ |
| 2441 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2442 | /* Init our journal object. */ |
| 2443 | status = ocfs2_journal_init(osb->journal, &dirty); |
| 2444 | if (status < 0) { |
| 2445 | mlog(ML_ERROR, "Could not initialize journal!\n"); |
| 2446 | goto finally; |
| 2447 | } |
| 2448 | |
Patrick J. LoPresti | 3bdb8ef | 2010-07-22 15:05:57 -0700 | [diff] [blame] | 2449 | /* Now that journal has been initialized, check to make sure |
| 2450 | entire volume is addressable. */ |
| 2451 | status = ocfs2_journal_addressable(osb); |
| 2452 | if (status) |
| 2453 | goto finally; |
| 2454 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2455 | /* If the journal was unmounted cleanly then we don't want to |
| 2456 | * recover anything. Otherwise, journal_load will do that |
| 2457 | * dirty work for us :) */ |
| 2458 | if (!dirty) { |
| 2459 | status = ocfs2_journal_wipe(osb->journal, 0); |
| 2460 | if (status < 0) { |
| 2461 | mlog_errno(status); |
| 2462 | goto finally; |
| 2463 | } |
| 2464 | } else { |
| 2465 | mlog(ML_NOTICE, "File system was not unmounted cleanly, " |
| 2466 | "recovering volume.\n"); |
| 2467 | } |
| 2468 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 2469 | local = ocfs2_mount_local(osb); |
| 2470 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2471 | /* will play back anything left in the journal. */ |
Sunil Mushran | 539d826 | 2008-07-14 17:31:10 -0700 | [diff] [blame] | 2472 | status = ocfs2_journal_load(osb->journal, local, dirty); |
Wengang Wang | 01af482 | 2008-06-10 14:24:48 +0800 | [diff] [blame] | 2473 | if (status < 0) { |
| 2474 | mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); |
| 2475 | goto finally; |
| 2476 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2477 | |
| 2478 | if (dirty) { |
| 2479 | /* recover my local alloc if we didn't unmount cleanly. */ |
| 2480 | status = ocfs2_begin_local_alloc_recovery(osb, |
| 2481 | osb->slot_num, |
| 2482 | &local_alloc); |
| 2483 | if (status < 0) { |
| 2484 | mlog_errno(status); |
| 2485 | goto finally; |
| 2486 | } |
| 2487 | /* we complete the recovery process after we've marked |
| 2488 | * ourselves as mounted. */ |
| 2489 | } |
| 2490 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2491 | status = ocfs2_load_local_alloc(osb); |
| 2492 | if (status < 0) { |
| 2493 | mlog_errno(status); |
| 2494 | goto finally; |
| 2495 | } |
| 2496 | |
| 2497 | if (dirty) { |
| 2498 | /* Recovery will be completed after we've mounted the |
| 2499 | * rest of the volume. */ |
| 2500 | osb->dirty = 1; |
| 2501 | osb->local_alloc_copy = local_alloc; |
| 2502 | local_alloc = NULL; |
| 2503 | } |
| 2504 | |
| 2505 | /* go through each journal, trylock it and if you get the |
| 2506 | * lock, and it's marked as dirty, set the bit in the recover |
| 2507 | * map and launch a recovery thread for it. */ |
| 2508 | status = ocfs2_mark_dead_nodes(osb); |
Srinivas Eeda | 9140db0 | 2009-03-06 14:21:46 -0800 | [diff] [blame] | 2509 | if (status < 0) { |
| 2510 | mlog_errno(status); |
| 2511 | goto finally; |
| 2512 | } |
| 2513 | |
| 2514 | status = ocfs2_compute_replay_slots(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2515 | if (status < 0) |
| 2516 | mlog_errno(status); |
| 2517 | |
| 2518 | finally: |
| 2519 | if (local_alloc) |
| 2520 | kfree(local_alloc); |
| 2521 | |
Tao Ma | c1e8d35 | 2011-03-07 16:43:21 +0800 | [diff] [blame] | 2522 | if (status) |
| 2523 | mlog_errno(status); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2524 | return status; |
| 2525 | } |
| 2526 | |
| 2527 | /* |
| 2528 | * The routine gets called from dismount or close whenever a dismount on |
| 2529 | * volume is requested and the osb open count becomes 1. |
| 2530 | * It will remove the osb from the global list and also free up all the |
| 2531 | * initialized resources and fileobject. |
| 2532 | */ |
| 2533 | static void ocfs2_delete_osb(struct ocfs2_super *osb) |
| 2534 | { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2535 | /* This function assumes that the caller has the main osb resource */ |
| 2536 | |
Mark Fasheh | 8e8a460 | 2008-02-01 11:59:09 -0800 | [diff] [blame] | 2537 | ocfs2_free_slot_info(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2538 | |
Mark Fasheh | b4df6ed | 2006-02-22 17:35:08 -0800 | [diff] [blame] | 2539 | kfree(osb->osb_orphan_wipes); |
Sunil Mushran | 539d826 | 2008-07-14 17:31:10 -0700 | [diff] [blame] | 2540 | kfree(osb->slot_recovery_generations); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2541 | /* FIXME |
| 2542 | * This belongs in journal shutdown, but because we have to |
Uwe Kleine-König | 421f91d | 2010-06-11 12:17:00 +0200 | [diff] [blame] | 2543 | * allocate osb->journal at the start of ocfs2_initialize_osb(), |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2544 | * we free it here. |
| 2545 | */ |
| 2546 | kfree(osb->journal); |
| 2547 | if (osb->local_alloc_copy) |
| 2548 | kfree(osb->local_alloc_copy); |
| 2549 | kfree(osb->uuid_str); |
| 2550 | ocfs2_put_dlm_debug(osb->osb_dlm_debug); |
| 2551 | memset(osb, 0, sizeof(struct ocfs2_super)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2552 | } |
| 2553 | |
| 2554 | /* Put OCFS2 into a readonly state, or (if the user specifies it), |
| 2555 | * panic(). We do not support continue-on-error operation. */ |
| 2556 | static void ocfs2_handle_error(struct super_block *sb) |
| 2557 | { |
| 2558 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 2559 | |
| 2560 | if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) |
| 2561 | panic("OCFS2: (device %s): panic forced after error\n", |
| 2562 | sb->s_id); |
| 2563 | |
| 2564 | ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); |
| 2565 | |
| 2566 | if (sb->s_flags & MS_RDONLY && |
| 2567 | (ocfs2_is_soft_readonly(osb) || |
| 2568 | ocfs2_is_hard_readonly(osb))) |
| 2569 | return; |
| 2570 | |
| 2571 | printk(KERN_CRIT "File system is now read-only due to the potential " |
| 2572 | "of on-disk corruption. Please run fsck.ocfs2 once the file " |
| 2573 | "system is unmounted.\n"); |
| 2574 | sb->s_flags |= MS_RDONLY; |
| 2575 | ocfs2_set_ro_flag(osb, 0); |
| 2576 | } |
| 2577 | |
| 2578 | static char error_buf[1024]; |
| 2579 | |
| 2580 | void __ocfs2_error(struct super_block *sb, |
| 2581 | const char *function, |
| 2582 | const char *fmt, ...) |
| 2583 | { |
| 2584 | va_list args; |
| 2585 | |
| 2586 | va_start(args, fmt); |
Alexey Dobriyan | 4a6e617 | 2006-12-06 20:37:04 -0800 | [diff] [blame] | 2587 | vsnprintf(error_buf, sizeof(error_buf), fmt, args); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2588 | va_end(args); |
| 2589 | |
| 2590 | /* Not using mlog here because we want to show the actual |
| 2591 | * function the error came from. */ |
| 2592 | printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", |
| 2593 | sb->s_id, function, error_buf); |
| 2594 | |
| 2595 | ocfs2_handle_error(sb); |
| 2596 | } |
| 2597 | |
| 2598 | /* Handle critical errors. This is intentionally more drastic than |
| 2599 | * ocfs2_handle_error, so we only use for things like journal errors, |
| 2600 | * etc. */ |
| 2601 | void __ocfs2_abort(struct super_block* sb, |
| 2602 | const char *function, |
| 2603 | const char *fmt, ...) |
| 2604 | { |
| 2605 | va_list args; |
| 2606 | |
| 2607 | va_start(args, fmt); |
Alexey Dobriyan | 4a6e617 | 2006-12-06 20:37:04 -0800 | [diff] [blame] | 2608 | vsnprintf(error_buf, sizeof(error_buf), fmt, args); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2609 | va_end(args); |
| 2610 | |
| 2611 | printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", |
| 2612 | sb->s_id, function, error_buf); |
| 2613 | |
| 2614 | /* We don't have the cluster support yet to go straight to |
| 2615 | * hard readonly in here. Until then, we want to keep |
| 2616 | * ocfs2_abort() so that we can at least mark critical |
| 2617 | * errors. |
| 2618 | * |
| 2619 | * TODO: This should abort the journal and alert other nodes |
| 2620 | * that our slot needs recovery. */ |
| 2621 | |
| 2622 | /* Force a panic(). This stinks, but it's better than letting |
| 2623 | * things continue without having a proper hard readonly |
| 2624 | * here. */ |
Sunil Mushran | a2f2ddb | 2009-08-19 15:16:01 -0700 | [diff] [blame] | 2625 | if (!ocfs2_mount_local(OCFS2_SB(sb))) |
| 2626 | OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2627 | ocfs2_handle_error(sb); |
| 2628 | } |
| 2629 | |
Joel Becker | e4b963f | 2009-09-02 17:17:36 -0700 | [diff] [blame] | 2630 | /* |
| 2631 | * Void signal blockers, because in-kernel sigprocmask() only fails |
| 2632 | * when SIG_* is wrong. |
| 2633 | */ |
| 2634 | void ocfs2_block_signals(sigset_t *oldset) |
| 2635 | { |
| 2636 | int rc; |
| 2637 | sigset_t blocked; |
| 2638 | |
| 2639 | sigfillset(&blocked); |
| 2640 | rc = sigprocmask(SIG_BLOCK, &blocked, oldset); |
| 2641 | BUG_ON(rc); |
| 2642 | } |
| 2643 | |
| 2644 | void ocfs2_unblock_signals(sigset_t *oldset) |
| 2645 | { |
| 2646 | int rc = sigprocmask(SIG_SETMASK, oldset, NULL); |
| 2647 | BUG_ON(rc); |
| 2648 | } |
| 2649 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2650 | module_init(ocfs2_init); |
| 2651 | module_exit(ocfs2_exit); |