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> |
Alessio Igor Bogani | 337eb00 | 2009-05-12 15:10:54 +0200 | [diff] [blame] | 44 | #include <linux/smp_lock.h> |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 45 | |
| 46 | #define MLOG_MASK_PREFIX ML_SUPER |
| 47 | #include <cluster/masklog.h> |
| 48 | |
| 49 | #include "ocfs2.h" |
| 50 | |
| 51 | /* this should be the only file to include a version 1 header */ |
| 52 | #include "ocfs1_fs_compat.h" |
| 53 | |
| 54 | #include "alloc.h" |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 55 | #include "blockcheck.h" |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 56 | #include "dlmglue.h" |
| 57 | #include "export.h" |
| 58 | #include "extent_map.h" |
| 59 | #include "heartbeat.h" |
| 60 | #include "inode.h" |
| 61 | #include "journal.h" |
| 62 | #include "localalloc.h" |
| 63 | #include "namei.h" |
| 64 | #include "slot_map.h" |
| 65 | #include "super.h" |
| 66 | #include "sysfile.h" |
| 67 | #include "uptodate.h" |
| 68 | #include "ver.h" |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 69 | #include "xattr.h" |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 70 | #include "quota.h" |
Tao Ma | 374a263 | 2009-08-24 11:13:37 +0800 | [diff] [blame] | 71 | #include "refcounttree.h" |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 72 | |
| 73 | #include "buffer_head_io.h" |
| 74 | |
Christoph Lameter | e18b890 | 2006-12-06 20:33:20 -0800 | [diff] [blame] | 75 | static struct kmem_cache *ocfs2_inode_cachep = NULL; |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 76 | struct kmem_cache *ocfs2_dquot_cachep; |
| 77 | struct kmem_cache *ocfs2_qf_chunk_cachep; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 78 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 79 | /* OCFS2 needs to schedule several differnt types of work which |
| 80 | * require cluster locking, disk I/O, recovery waits, etc. Since these |
| 81 | * types of work tend to be heavy we avoid using the kernel events |
| 82 | * workqueue and schedule on our own. */ |
| 83 | struct workqueue_struct *ocfs2_wq = NULL; |
| 84 | |
| 85 | static struct dentry *ocfs2_debugfs_root = NULL; |
| 86 | |
| 87 | MODULE_AUTHOR("Oracle"); |
| 88 | MODULE_LICENSE("GPL"); |
| 89 | |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 90 | struct mount_options |
| 91 | { |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 92 | unsigned long commit_interval; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 93 | unsigned long mount_opt; |
| 94 | unsigned int atime_quantum; |
| 95 | signed short slot; |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 96 | unsigned int localalloc_opt; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 97 | char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 98 | }; |
| 99 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 100 | static int ocfs2_parse_options(struct super_block *sb, char *options, |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 101 | struct mount_options *mopt, |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 102 | int is_remount); |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 103 | static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 104 | static void ocfs2_put_super(struct super_block *sb); |
| 105 | static int ocfs2_mount_volume(struct super_block *sb); |
| 106 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data); |
| 107 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err); |
| 108 | static int ocfs2_initialize_mem_caches(void); |
| 109 | static void ocfs2_free_mem_caches(void); |
| 110 | static void ocfs2_delete_osb(struct ocfs2_super *osb); |
| 111 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 112 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 113 | |
| 114 | static int ocfs2_sync_fs(struct super_block *sb, int wait); |
| 115 | |
| 116 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb); |
| 117 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb); |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 118 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 119 | static int ocfs2_check_volume(struct ocfs2_super *osb); |
| 120 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, |
| 121 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 122 | u32 sectsize, |
| 123 | struct ocfs2_blockcheck_stats *stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 124 | static int ocfs2_initialize_super(struct super_block *sb, |
| 125 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 126 | int sector_size, |
| 127 | struct ocfs2_blockcheck_stats *stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 128 | static int ocfs2_get_sector(struct super_block *sb, |
| 129 | struct buffer_head **bh, |
| 130 | int block, |
| 131 | int sect_size); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 132 | static struct inode *ocfs2_alloc_inode(struct super_block *sb); |
| 133 | static void ocfs2_destroy_inode(struct inode *inode); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 134 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend); |
| 135 | static int ocfs2_enable_quotas(struct ocfs2_super *osb); |
| 136 | static void ocfs2_disable_quotas(struct ocfs2_super *osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 137 | |
Josef 'Jeff' Sipek | ee9b6d6 | 2007-02-12 00:55:41 -0800 | [diff] [blame] | 138 | static const struct super_operations ocfs2_sops = { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 139 | .statfs = ocfs2_statfs, |
| 140 | .alloc_inode = ocfs2_alloc_inode, |
| 141 | .destroy_inode = ocfs2_destroy_inode, |
| 142 | .drop_inode = ocfs2_drop_inode, |
| 143 | .clear_inode = ocfs2_clear_inode, |
| 144 | .delete_inode = ocfs2_delete_inode, |
| 145 | .sync_fs = ocfs2_sync_fs, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 146 | .put_super = ocfs2_put_super, |
| 147 | .remount_fs = ocfs2_remount, |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 148 | .show_options = ocfs2_show_options, |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 149 | .quota_read = ocfs2_quota_read, |
| 150 | .quota_write = ocfs2_quota_write, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 151 | }; |
| 152 | |
| 153 | enum { |
| 154 | Opt_barrier, |
| 155 | Opt_err_panic, |
| 156 | Opt_err_ro, |
| 157 | Opt_intr, |
| 158 | Opt_nointr, |
| 159 | Opt_hb_none, |
| 160 | Opt_hb_local, |
| 161 | Opt_data_ordered, |
| 162 | Opt_data_writeback, |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 163 | Opt_atime_quantum, |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 164 | Opt_slot, |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 165 | Opt_commit, |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 166 | Opt_localalloc, |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 167 | Opt_localflocks, |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 168 | Opt_stack, |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 169 | Opt_user_xattr, |
| 170 | Opt_nouser_xattr, |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 171 | Opt_inode64, |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 172 | Opt_acl, |
| 173 | Opt_noacl, |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 174 | Opt_usrquota, |
| 175 | Opt_grpquota, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 176 | Opt_err, |
| 177 | }; |
| 178 | |
Steven Whitehouse | a447c09 | 2008-10-13 10:46:57 +0100 | [diff] [blame] | 179 | static const match_table_t tokens = { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 180 | {Opt_barrier, "barrier=%u"}, |
| 181 | {Opt_err_panic, "errors=panic"}, |
| 182 | {Opt_err_ro, "errors=remount-ro"}, |
| 183 | {Opt_intr, "intr"}, |
| 184 | {Opt_nointr, "nointr"}, |
| 185 | {Opt_hb_none, OCFS2_HB_NONE}, |
| 186 | {Opt_hb_local, OCFS2_HB_LOCAL}, |
| 187 | {Opt_data_ordered, "data=ordered"}, |
| 188 | {Opt_data_writeback, "data=writeback"}, |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 189 | {Opt_atime_quantum, "atime_quantum=%u"}, |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 190 | {Opt_slot, "preferred_slot=%u"}, |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 191 | {Opt_commit, "commit=%u"}, |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 192 | {Opt_localalloc, "localalloc=%d"}, |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 193 | {Opt_localflocks, "localflocks"}, |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 194 | {Opt_stack, "cluster_stack=%s"}, |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 195 | {Opt_user_xattr, "user_xattr"}, |
| 196 | {Opt_nouser_xattr, "nouser_xattr"}, |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 197 | {Opt_inode64, "inode64"}, |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 198 | {Opt_acl, "acl"}, |
| 199 | {Opt_noacl, "noacl"}, |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 200 | {Opt_usrquota, "usrquota"}, |
| 201 | {Opt_grpquota, "grpquota"}, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 202 | {Opt_err, NULL} |
| 203 | }; |
| 204 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 205 | #ifdef CONFIG_DEBUG_FS |
| 206 | static int ocfs2_osb_dump(struct ocfs2_super *osb, char *buf, int len) |
| 207 | { |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 208 | struct ocfs2_cluster_connection *cconn = osb->cconn; |
| 209 | struct ocfs2_recovery_map *rm = osb->recovery_map; |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 210 | struct ocfs2_orphan_scan *os = &osb->osb_orphan_scan; |
| 211 | int i, out = 0; |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 212 | |
| 213 | out += snprintf(buf + out, len - out, |
| 214 | "%10s => Id: %-s Uuid: %-s Gen: 0x%X Label: %-s\n", |
| 215 | "Device", osb->dev_str, osb->uuid_str, |
| 216 | osb->fs_generation, osb->vol_label); |
| 217 | |
| 218 | out += snprintf(buf + out, len - out, |
| 219 | "%10s => State: %d Flags: 0x%lX\n", "Volume", |
| 220 | atomic_read(&osb->vol_state), osb->osb_flags); |
| 221 | |
| 222 | out += snprintf(buf + out, len - out, |
| 223 | "%10s => Block: %lu Cluster: %d\n", "Sizes", |
| 224 | osb->sb->s_blocksize, osb->s_clustersize); |
| 225 | |
| 226 | out += snprintf(buf + out, len - out, |
| 227 | "%10s => Compat: 0x%X Incompat: 0x%X " |
| 228 | "ROcompat: 0x%X\n", |
| 229 | "Features", osb->s_feature_compat, |
| 230 | osb->s_feature_incompat, osb->s_feature_ro_compat); |
| 231 | |
| 232 | out += snprintf(buf + out, len - out, |
| 233 | "%10s => Opts: 0x%lX AtimeQuanta: %u\n", "Mount", |
| 234 | osb->s_mount_opt, osb->s_atime_quantum); |
| 235 | |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 236 | if (cconn) { |
| 237 | out += snprintf(buf + out, len - out, |
| 238 | "%10s => Stack: %s Name: %*s " |
| 239 | "Version: %d.%d\n", "Cluster", |
| 240 | (*osb->osb_cluster_stack == '\0' ? |
| 241 | "o2cb" : osb->osb_cluster_stack), |
| 242 | cconn->cc_namelen, cconn->cc_name, |
| 243 | cconn->cc_version.pv_major, |
| 244 | cconn->cc_version.pv_minor); |
| 245 | } |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 246 | |
| 247 | spin_lock(&osb->dc_task_lock); |
| 248 | out += snprintf(buf + out, len - out, |
| 249 | "%10s => Pid: %d Count: %lu WakeSeq: %lu " |
| 250 | "WorkSeq: %lu\n", "DownCnvt", |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 251 | (osb->dc_task ? task_pid_nr(osb->dc_task) : -1), |
| 252 | osb->blocked_lock_count, osb->dc_wake_sequence, |
| 253 | osb->dc_work_sequence); |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 254 | spin_unlock(&osb->dc_task_lock); |
| 255 | |
| 256 | spin_lock(&osb->osb_lock); |
| 257 | out += snprintf(buf + out, len - out, "%10s => Pid: %d Nodes:", |
| 258 | "Recovery", |
| 259 | (osb->recovery_thread_task ? |
| 260 | task_pid_nr(osb->recovery_thread_task) : -1)); |
| 261 | if (rm->rm_used == 0) |
| 262 | out += snprintf(buf + out, len - out, " None\n"); |
| 263 | else { |
| 264 | for (i = 0; i < rm->rm_used; i++) |
| 265 | out += snprintf(buf + out, len - out, " %d", |
| 266 | rm->rm_entries[i]); |
| 267 | out += snprintf(buf + out, len - out, "\n"); |
| 268 | } |
| 269 | spin_unlock(&osb->osb_lock); |
| 270 | |
| 271 | out += snprintf(buf + out, len - out, |
| 272 | "%10s => Pid: %d Interval: %lu Needs: %d\n", "Commit", |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 273 | (osb->commit_task ? task_pid_nr(osb->commit_task) : -1), |
| 274 | osb->osb_commit_interval, |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 275 | atomic_read(&osb->needs_checkpoint)); |
| 276 | |
| 277 | out += snprintf(buf + out, len - out, |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 278 | "%10s => State: %d TxnId: %lu NumTxns: %d\n", |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 279 | "Journal", osb->journal->j_state, |
Sunil Mushran | c3d3884 | 2009-06-19 14:45:55 -0700 | [diff] [blame] | 280 | osb->journal->j_trans_id, |
| 281 | atomic_read(&osb->journal->j_num_trans)); |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 282 | |
| 283 | out += snprintf(buf + out, len - out, |
| 284 | "%10s => GlobalAllocs: %d LocalAllocs: %d " |
| 285 | "SubAllocs: %d LAWinMoves: %d SAExtends: %d\n", |
| 286 | "Stats", |
| 287 | atomic_read(&osb->alloc_stats.bitmap_data), |
| 288 | atomic_read(&osb->alloc_stats.local_data), |
| 289 | atomic_read(&osb->alloc_stats.bg_allocs), |
| 290 | atomic_read(&osb->alloc_stats.moves), |
| 291 | atomic_read(&osb->alloc_stats.bg_extends)); |
| 292 | |
| 293 | out += snprintf(buf + out, len - out, |
| 294 | "%10s => State: %u Descriptor: %llu Size: %u bits " |
| 295 | "Default: %u bits\n", |
| 296 | "LocalAlloc", osb->local_alloc_state, |
| 297 | (unsigned long long)osb->la_last_gd, |
| 298 | osb->local_alloc_bits, osb->local_alloc_default_bits); |
| 299 | |
| 300 | spin_lock(&osb->osb_lock); |
| 301 | out += snprintf(buf + out, len - out, |
| 302 | "%10s => Slot: %d NumStolen: %d\n", "Steal", |
| 303 | osb->s_inode_steal_slot, |
| 304 | atomic_read(&osb->s_num_inodes_stolen)); |
| 305 | spin_unlock(&osb->osb_lock); |
| 306 | |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 307 | out += snprintf(buf + out, len - out, "OrphanScan => "); |
| 308 | out += snprintf(buf + out, len - out, "Local: %u Global: %u ", |
| 309 | os->os_count, os->os_seqno); |
| 310 | out += snprintf(buf + out, len - out, " Last Scan: "); |
| 311 | if (atomic_read(&os->os_state) == ORPHAN_SCAN_INACTIVE) |
| 312 | out += snprintf(buf + out, len - out, "Disabled\n"); |
| 313 | else |
| 314 | out += snprintf(buf + out, len - out, "%lu seconds ago\n", |
| 315 | (get_seconds() - os->os_scantime.tv_sec)); |
| 316 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 317 | out += snprintf(buf + out, len - out, "%10s => %3s %10s\n", |
| 318 | "Slots", "Num", "RecoGen"); |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 319 | for (i = 0; i < osb->max_slots; ++i) { |
| 320 | out += snprintf(buf + out, len - out, |
| 321 | "%10s %c %3d %10d\n", |
| 322 | " ", |
| 323 | (i == osb->slot_num ? '*' : ' '), |
| 324 | i, osb->slot_recovery_generations[i]); |
| 325 | } |
| 326 | |
| 327 | return out; |
| 328 | } |
| 329 | |
| 330 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) |
| 331 | { |
| 332 | struct ocfs2_super *osb = inode->i_private; |
| 333 | char *buf = NULL; |
| 334 | |
| 335 | buf = kmalloc(PAGE_SIZE, GFP_KERNEL); |
| 336 | if (!buf) |
| 337 | goto bail; |
| 338 | |
| 339 | i_size_write(inode, ocfs2_osb_dump(osb, buf, PAGE_SIZE)); |
| 340 | |
| 341 | file->private_data = buf; |
| 342 | |
| 343 | return 0; |
| 344 | bail: |
| 345 | return -ENOMEM; |
| 346 | } |
| 347 | |
| 348 | static int ocfs2_debug_release(struct inode *inode, struct file *file) |
| 349 | { |
| 350 | kfree(file->private_data); |
| 351 | return 0; |
| 352 | } |
| 353 | |
| 354 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, |
| 355 | size_t nbytes, loff_t *ppos) |
| 356 | { |
| 357 | return simple_read_from_buffer(buf, nbytes, ppos, file->private_data, |
| 358 | i_size_read(file->f_mapping->host)); |
| 359 | } |
| 360 | #else |
| 361 | static int ocfs2_osb_debug_open(struct inode *inode, struct file *file) |
| 362 | { |
| 363 | return 0; |
| 364 | } |
| 365 | static int ocfs2_debug_release(struct inode *inode, struct file *file) |
| 366 | { |
| 367 | return 0; |
| 368 | } |
| 369 | static ssize_t ocfs2_debug_read(struct file *file, char __user *buf, |
| 370 | size_t nbytes, loff_t *ppos) |
| 371 | { |
| 372 | return 0; |
| 373 | } |
| 374 | #endif /* CONFIG_DEBUG_FS */ |
| 375 | |
Alexey Dobriyan | 828c095 | 2009-10-01 15:43:56 -0700 | [diff] [blame] | 376 | static const struct file_operations ocfs2_osb_debug_fops = { |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 377 | .open = ocfs2_osb_debug_open, |
| 378 | .release = ocfs2_debug_release, |
| 379 | .read = ocfs2_debug_read, |
| 380 | .llseek = generic_file_llseek, |
| 381 | }; |
| 382 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 383 | static int ocfs2_sync_fs(struct super_block *sb, int wait) |
| 384 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 385 | int status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 386 | tid_t target; |
| 387 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 388 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 389 | if (ocfs2_is_hard_readonly(osb)) |
| 390 | return -EROFS; |
| 391 | |
| 392 | if (wait) { |
| 393 | status = ocfs2_flush_truncate_log(osb); |
| 394 | if (status < 0) |
| 395 | mlog_errno(status); |
| 396 | } else { |
| 397 | ocfs2_schedule_truncate_log_flush(osb, 0); |
| 398 | } |
| 399 | |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 400 | if (jbd2_journal_start_commit(OCFS2_SB(sb)->journal->j_journal, |
| 401 | &target)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 402 | if (wait) |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 403 | jbd2_log_wait_commit(OCFS2_SB(sb)->journal->j_journal, |
| 404 | target); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 405 | } |
| 406 | return 0; |
| 407 | } |
| 408 | |
Jan Kara | 1a224ad | 2008-08-20 15:43:36 +0200 | [diff] [blame] | 409 | static int ocfs2_need_system_inode(struct ocfs2_super *osb, int ino) |
| 410 | { |
| 411 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA) |
| 412 | && (ino == USER_QUOTA_SYSTEM_INODE |
| 413 | || ino == LOCAL_USER_QUOTA_SYSTEM_INODE)) |
| 414 | return 0; |
| 415 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA) |
| 416 | && (ino == GROUP_QUOTA_SYSTEM_INODE |
| 417 | || ino == LOCAL_GROUP_QUOTA_SYSTEM_INODE)) |
| 418 | return 0; |
| 419 | return 1; |
| 420 | } |
| 421 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 422 | static int ocfs2_init_global_system_inodes(struct ocfs2_super *osb) |
| 423 | { |
| 424 | struct inode *new = NULL; |
| 425 | int status = 0; |
| 426 | int i; |
| 427 | |
| 428 | mlog_entry_void(); |
| 429 | |
Jan Kara | 5fa0613 | 2008-01-11 00:11:45 +0100 | [diff] [blame] | 430 | new = ocfs2_iget(osb, osb->root_blkno, OCFS2_FI_FLAG_SYSFILE, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 431 | if (IS_ERR(new)) { |
| 432 | status = PTR_ERR(new); |
| 433 | mlog_errno(status); |
| 434 | goto bail; |
| 435 | } |
| 436 | osb->root_inode = new; |
| 437 | |
Jan Kara | 5fa0613 | 2008-01-11 00:11:45 +0100 | [diff] [blame] | 438 | 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] | 439 | if (IS_ERR(new)) { |
| 440 | status = PTR_ERR(new); |
| 441 | mlog_errno(status); |
| 442 | goto bail; |
| 443 | } |
| 444 | osb->sys_root_inode = new; |
| 445 | |
| 446 | for (i = OCFS2_FIRST_ONLINE_SYSTEM_INODE; |
| 447 | i <= OCFS2_LAST_GLOBAL_SYSTEM_INODE; i++) { |
Jan Kara | 1a224ad | 2008-08-20 15:43:36 +0200 | [diff] [blame] | 448 | if (!ocfs2_need_system_inode(osb, i)) |
| 449 | continue; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 450 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
| 451 | if (!new) { |
| 452 | ocfs2_release_system_inodes(osb); |
| 453 | status = -EINVAL; |
| 454 | mlog_errno(status); |
| 455 | /* FIXME: Should ERROR_RO_FS */ |
| 456 | mlog(ML_ERROR, "Unable to load system inode %d, " |
| 457 | "possibly corrupt fs?", i); |
| 458 | goto bail; |
| 459 | } |
| 460 | // the array now has one ref, so drop this one |
| 461 | iput(new); |
| 462 | } |
| 463 | |
| 464 | bail: |
| 465 | mlog_exit(status); |
| 466 | return status; |
| 467 | } |
| 468 | |
| 469 | static int ocfs2_init_local_system_inodes(struct ocfs2_super *osb) |
| 470 | { |
| 471 | struct inode *new = NULL; |
| 472 | int status = 0; |
| 473 | int i; |
| 474 | |
| 475 | mlog_entry_void(); |
| 476 | |
| 477 | for (i = OCFS2_LAST_GLOBAL_SYSTEM_INODE + 1; |
| 478 | i < NUM_SYSTEM_INODES; |
| 479 | i++) { |
Jan Kara | 1a224ad | 2008-08-20 15:43:36 +0200 | [diff] [blame] | 480 | if (!ocfs2_need_system_inode(osb, i)) |
| 481 | continue; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 482 | new = ocfs2_get_system_file_inode(osb, i, osb->slot_num); |
| 483 | if (!new) { |
| 484 | ocfs2_release_system_inodes(osb); |
| 485 | status = -EINVAL; |
| 486 | mlog(ML_ERROR, "status=%d, sysfile=%d, slot=%d\n", |
| 487 | status, i, osb->slot_num); |
| 488 | goto bail; |
| 489 | } |
| 490 | /* the array now has one ref, so drop this one */ |
| 491 | iput(new); |
| 492 | } |
| 493 | |
| 494 | bail: |
| 495 | mlog_exit(status); |
| 496 | return status; |
| 497 | } |
| 498 | |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 499 | static void ocfs2_release_system_inodes(struct ocfs2_super *osb) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 500 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 501 | int i; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 502 | struct inode *inode; |
| 503 | |
| 504 | mlog_entry_void(); |
| 505 | |
| 506 | for (i = 0; i < NUM_SYSTEM_INODES; i++) { |
| 507 | inode = osb->system_inodes[i]; |
| 508 | if (inode) { |
| 509 | iput(inode); |
| 510 | osb->system_inodes[i] = NULL; |
| 511 | } |
| 512 | } |
| 513 | |
| 514 | inode = osb->sys_root_inode; |
| 515 | if (inode) { |
| 516 | iput(inode); |
| 517 | osb->sys_root_inode = NULL; |
| 518 | } |
| 519 | |
| 520 | inode = osb->root_inode; |
| 521 | if (inode) { |
| 522 | iput(inode); |
| 523 | osb->root_inode = NULL; |
| 524 | } |
| 525 | |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 526 | mlog_exit(0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 527 | } |
| 528 | |
| 529 | /* We're allocating fs objects, use GFP_NOFS */ |
| 530 | static struct inode *ocfs2_alloc_inode(struct super_block *sb) |
| 531 | { |
| 532 | struct ocfs2_inode_info *oi; |
| 533 | |
Christoph Lameter | e6b4f8d | 2006-12-06 20:33:14 -0800 | [diff] [blame] | 534 | oi = kmem_cache_alloc(ocfs2_inode_cachep, GFP_NOFS); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 535 | if (!oi) |
| 536 | return NULL; |
| 537 | |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 538 | jbd2_journal_init_jbd_inode(&oi->ip_jinode, &oi->vfs_inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 539 | return &oi->vfs_inode; |
| 540 | } |
| 541 | |
| 542 | static void ocfs2_destroy_inode(struct inode *inode) |
| 543 | { |
| 544 | kmem_cache_free(ocfs2_inode_cachep, OCFS2_I(inode)); |
| 545 | } |
| 546 | |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 547 | static unsigned long long ocfs2_max_file_offset(unsigned int bbits, |
| 548 | unsigned int cbits) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 549 | { |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 550 | unsigned int bytes = 1 << cbits; |
| 551 | unsigned int trim = bytes; |
| 552 | unsigned int bitshift = 32; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 553 | |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 554 | /* |
| 555 | * i_size and all block offsets in ocfs2 are always 64 bits |
| 556 | * wide. i_clusters is 32 bits, in cluster-sized units. So on |
| 557 | * 64 bit platforms, cluster size will be the limiting factor. |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 558 | */ |
| 559 | |
| 560 | #if BITS_PER_LONG == 32 |
Bartlomiej Zolnierkiewicz | 90c699a | 2009-06-19 08:08:50 +0200 | [diff] [blame] | 561 | # if defined(CONFIG_LBDAF) |
Alexey Dobriyan | 2ecd05a | 2006-10-11 01:22:05 -0700 | [diff] [blame] | 562 | BUILD_BUG_ON(sizeof(sector_t) != 8); |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 563 | /* |
| 564 | * We might be limited by page cache size. |
| 565 | */ |
| 566 | if (bytes > PAGE_CACHE_SIZE) { |
| 567 | bytes = PAGE_CACHE_SIZE; |
| 568 | trim = 1; |
| 569 | /* |
| 570 | * Shift by 31 here so that we don't get larger than |
| 571 | * MAX_LFS_FILESIZE |
| 572 | */ |
| 573 | bitshift = 31; |
| 574 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 575 | # else |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 576 | /* |
| 577 | * We are limited by the size of sector_t. Use block size, as |
| 578 | * that's what we expose to the VFS. |
| 579 | */ |
| 580 | bytes = 1 << bbits; |
| 581 | trim = 1; |
| 582 | bitshift = 31; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 583 | # endif |
| 584 | #endif |
| 585 | |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 586 | /* |
| 587 | * Trim by a whole cluster when we can actually approach the |
| 588 | * on-disk limits. Otherwise we can overflow i_clusters when |
| 589 | * an extent start is at the max offset. |
| 590 | */ |
| 591 | return (((unsigned long long)bytes) << bitshift) - trim; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 592 | } |
| 593 | |
| 594 | static int ocfs2_remount(struct super_block *sb, int *flags, char *data) |
| 595 | { |
| 596 | int incompat_features; |
| 597 | int ret = 0; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 598 | struct mount_options parsed_options; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 599 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 600 | |
Alessio Igor Bogani | 337eb00 | 2009-05-12 15:10:54 +0200 | [diff] [blame] | 601 | lock_kernel(); |
| 602 | |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 603 | if (!ocfs2_parse_options(sb, data, &parsed_options, 1)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 604 | ret = -EINVAL; |
| 605 | goto out; |
| 606 | } |
| 607 | |
| 608 | if ((osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) != |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 609 | (parsed_options.mount_opt & OCFS2_MOUNT_HB_LOCAL)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 610 | ret = -EINVAL; |
| 611 | mlog(ML_ERROR, "Cannot change heartbeat mode on remount\n"); |
| 612 | goto out; |
| 613 | } |
| 614 | |
| 615 | if ((osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK) != |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 616 | (parsed_options.mount_opt & OCFS2_MOUNT_DATA_WRITEBACK)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 617 | ret = -EINVAL; |
| 618 | mlog(ML_ERROR, "Cannot change data mode on remount\n"); |
| 619 | goto out; |
| 620 | } |
| 621 | |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 622 | /* Probably don't want this on remount; it might |
| 623 | * mess with other nodes */ |
| 624 | if (!(osb->s_mount_opt & OCFS2_MOUNT_INODE64) && |
| 625 | (parsed_options.mount_opt & OCFS2_MOUNT_INODE64)) { |
| 626 | ret = -EINVAL; |
| 627 | mlog(ML_ERROR, "Cannot enable inode64 on remount\n"); |
| 628 | goto out; |
| 629 | } |
| 630 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 631 | /* We're going to/from readonly mode. */ |
| 632 | if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 633 | /* Disable quota accounting before remounting RO */ |
| 634 | if (*flags & MS_RDONLY) { |
| 635 | ret = ocfs2_susp_quotas(osb, 0); |
| 636 | if (ret < 0) |
| 637 | goto out; |
| 638 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 639 | /* Lock here so the check of HARD_RO and the potential |
| 640 | * setting of SOFT_RO is atomic. */ |
| 641 | spin_lock(&osb->osb_lock); |
| 642 | if (osb->osb_flags & OCFS2_OSB_HARD_RO) { |
| 643 | mlog(ML_ERROR, "Remount on readonly device is forbidden.\n"); |
| 644 | ret = -EROFS; |
| 645 | goto unlock_osb; |
| 646 | } |
| 647 | |
| 648 | if (*flags & MS_RDONLY) { |
| 649 | mlog(0, "Going to ro mode.\n"); |
| 650 | sb->s_flags |= MS_RDONLY; |
| 651 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; |
| 652 | } else { |
| 653 | mlog(0, "Making ro filesystem writeable.\n"); |
| 654 | |
| 655 | if (osb->osb_flags & OCFS2_OSB_ERROR_FS) { |
| 656 | mlog(ML_ERROR, "Cannot remount RDWR " |
| 657 | "filesystem due to previous errors.\n"); |
| 658 | ret = -EROFS; |
| 659 | goto unlock_osb; |
| 660 | } |
| 661 | incompat_features = OCFS2_HAS_RO_COMPAT_FEATURE(sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP); |
| 662 | if (incompat_features) { |
| 663 | mlog(ML_ERROR, "Cannot remount RDWR because " |
| 664 | "of unsupported optional features " |
| 665 | "(%x).\n", incompat_features); |
| 666 | ret = -EINVAL; |
| 667 | goto unlock_osb; |
| 668 | } |
| 669 | sb->s_flags &= ~MS_RDONLY; |
| 670 | osb->osb_flags &= ~OCFS2_OSB_SOFT_RO; |
| 671 | } |
| 672 | unlock_osb: |
| 673 | spin_unlock(&osb->osb_lock); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 674 | /* Enable quota accounting after remounting RW */ |
| 675 | if (!ret && !(*flags & MS_RDONLY)) { |
| 676 | if (sb_any_quota_suspended(sb)) |
| 677 | ret = ocfs2_susp_quotas(osb, 1); |
| 678 | else |
| 679 | ret = ocfs2_enable_quotas(osb); |
| 680 | if (ret < 0) { |
| 681 | /* Return back changes... */ |
| 682 | spin_lock(&osb->osb_lock); |
| 683 | sb->s_flags |= MS_RDONLY; |
| 684 | osb->osb_flags |= OCFS2_OSB_SOFT_RO; |
| 685 | spin_unlock(&osb->osb_lock); |
| 686 | goto out; |
| 687 | } |
| 688 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 689 | } |
| 690 | |
| 691 | if (!ret) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 692 | /* Only save off the new mount options in case of a successful |
| 693 | * remount. */ |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 694 | if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) |
| 695 | parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 696 | osb->s_mount_opt = parsed_options.mount_opt; |
| 697 | osb->s_atime_quantum = parsed_options.atime_quantum; |
| 698 | osb->preferred_slot = parsed_options.slot; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 699 | if (parsed_options.commit_interval) |
| 700 | osb->osb_commit_interval = parsed_options.commit_interval; |
Mark Fasheh | e001e79 | 2007-11-07 14:21:45 -0800 | [diff] [blame] | 701 | |
| 702 | if (!ocfs2_is_hard_readonly(osb)) |
| 703 | ocfs2_set_journal_params(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 704 | } |
| 705 | out: |
Alessio Igor Bogani | 337eb00 | 2009-05-12 15:10:54 +0200 | [diff] [blame] | 706 | unlock_kernel(); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 707 | return ret; |
| 708 | } |
| 709 | |
| 710 | static int ocfs2_sb_probe(struct super_block *sb, |
| 711 | struct buffer_head **bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 712 | int *sector_size, |
| 713 | struct ocfs2_blockcheck_stats *stats) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 714 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 715 | int status, tmpstat; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 716 | struct ocfs1_vol_disk_hdr *hdr; |
| 717 | struct ocfs2_dinode *di; |
| 718 | int blksize; |
| 719 | |
| 720 | *bh = NULL; |
| 721 | |
| 722 | /* may be > 512 */ |
Martin K. Petersen | e1defc4 | 2009-05-22 17:17:49 -0400 | [diff] [blame] | 723 | *sector_size = bdev_logical_block_size(sb->s_bdev); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 724 | if (*sector_size > OCFS2_MAX_BLOCKSIZE) { |
| 725 | mlog(ML_ERROR, "Hardware sector size too large: %d (max=%d)\n", |
| 726 | *sector_size, OCFS2_MAX_BLOCKSIZE); |
| 727 | status = -EINVAL; |
| 728 | goto bail; |
| 729 | } |
| 730 | |
| 731 | /* Can this really happen? */ |
| 732 | if (*sector_size < OCFS2_MIN_BLOCKSIZE) |
| 733 | *sector_size = OCFS2_MIN_BLOCKSIZE; |
| 734 | |
| 735 | /* check block zero for old format */ |
| 736 | status = ocfs2_get_sector(sb, bh, 0, *sector_size); |
| 737 | if (status < 0) { |
| 738 | mlog_errno(status); |
| 739 | goto bail; |
| 740 | } |
| 741 | hdr = (struct ocfs1_vol_disk_hdr *) (*bh)->b_data; |
| 742 | if (hdr->major_version == OCFS1_MAJOR_VERSION) { |
| 743 | mlog(ML_ERROR, "incompatible version: %u.%u\n", |
| 744 | hdr->major_version, hdr->minor_version); |
| 745 | status = -EINVAL; |
| 746 | } |
| 747 | if (memcmp(hdr->signature, OCFS1_VOLUME_SIGNATURE, |
| 748 | strlen(OCFS1_VOLUME_SIGNATURE)) == 0) { |
| 749 | mlog(ML_ERROR, "incompatible volume signature: %8s\n", |
| 750 | hdr->signature); |
| 751 | status = -EINVAL; |
| 752 | } |
| 753 | brelse(*bh); |
| 754 | *bh = NULL; |
| 755 | if (status < 0) { |
| 756 | mlog(ML_ERROR, "This is an ocfs v1 filesystem which must be " |
| 757 | "upgraded before mounting with ocfs v2\n"); |
| 758 | goto bail; |
| 759 | } |
| 760 | |
| 761 | /* |
| 762 | * Now check at magic offset for 512, 1024, 2048, 4096 |
| 763 | * blocksizes. 4096 is the maximum blocksize because it is |
| 764 | * the minimum clustersize. |
| 765 | */ |
| 766 | status = -EINVAL; |
| 767 | for (blksize = *sector_size; |
| 768 | blksize <= OCFS2_MAX_BLOCKSIZE; |
| 769 | blksize <<= 1) { |
| 770 | tmpstat = ocfs2_get_sector(sb, bh, |
| 771 | OCFS2_SUPER_BLOCK_BLKNO, |
| 772 | blksize); |
| 773 | if (tmpstat < 0) { |
| 774 | status = tmpstat; |
| 775 | mlog_errno(status); |
| 776 | goto bail; |
| 777 | } |
| 778 | di = (struct ocfs2_dinode *) (*bh)->b_data; |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 779 | memset(stats, 0, sizeof(struct ocfs2_blockcheck_stats)); |
Jan Kara | 1c1d979 | 2009-07-22 13:17:19 +0200 | [diff] [blame] | 780 | spin_lock_init(&stats->b_lock); |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 781 | status = ocfs2_verify_volume(di, *bh, blksize, stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 782 | if (status >= 0) |
| 783 | goto bail; |
| 784 | brelse(*bh); |
| 785 | *bh = NULL; |
| 786 | if (status != -EAGAIN) |
| 787 | break; |
| 788 | } |
| 789 | |
| 790 | bail: |
| 791 | return status; |
| 792 | } |
| 793 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 794 | static int ocfs2_verify_heartbeat(struct ocfs2_super *osb) |
| 795 | { |
| 796 | if (ocfs2_mount_local(osb)) { |
| 797 | if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { |
| 798 | mlog(ML_ERROR, "Cannot heartbeat on a locally " |
| 799 | "mounted device.\n"); |
| 800 | return -EINVAL; |
| 801 | } |
| 802 | } |
| 803 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 804 | if (ocfs2_userspace_stack(osb)) { |
| 805 | if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { |
| 806 | mlog(ML_ERROR, "Userspace stack expected, but " |
| 807 | "o2cb heartbeat arguments passed to mount\n"); |
| 808 | return -EINVAL; |
| 809 | } |
| 810 | } |
| 811 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 812 | if (!(osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL)) { |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 813 | if (!ocfs2_mount_local(osb) && !ocfs2_is_hard_readonly(osb) && |
| 814 | !ocfs2_userspace_stack(osb)) { |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 815 | mlog(ML_ERROR, "Heartbeat has to be started to mount " |
| 816 | "a read-write clustered device.\n"); |
| 817 | return -EINVAL; |
| 818 | } |
| 819 | } |
| 820 | |
| 821 | return 0; |
| 822 | } |
| 823 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 824 | /* |
| 825 | * If we're using a userspace stack, mount should have passed |
| 826 | * a name that matches the disk. If not, mount should not |
| 827 | * have passed a stack. |
| 828 | */ |
| 829 | static int ocfs2_verify_userspace_stack(struct ocfs2_super *osb, |
| 830 | struct mount_options *mopt) |
| 831 | { |
| 832 | if (!ocfs2_userspace_stack(osb) && mopt->cluster_stack[0]) { |
| 833 | mlog(ML_ERROR, |
| 834 | "cluster stack passed to mount, but this filesystem " |
| 835 | "does not support it\n"); |
| 836 | return -EINVAL; |
| 837 | } |
| 838 | |
| 839 | if (ocfs2_userspace_stack(osb) && |
| 840 | strncmp(osb->osb_cluster_stack, mopt->cluster_stack, |
| 841 | OCFS2_STACK_LABEL_LEN)) { |
| 842 | mlog(ML_ERROR, |
| 843 | "cluster stack passed to mount (\"%s\") does not " |
| 844 | "match the filesystem (\"%s\")\n", |
| 845 | mopt->cluster_stack, |
| 846 | osb->osb_cluster_stack); |
| 847 | return -EINVAL; |
| 848 | } |
| 849 | |
| 850 | return 0; |
| 851 | } |
| 852 | |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 853 | static int ocfs2_susp_quotas(struct ocfs2_super *osb, int unsuspend) |
| 854 | { |
| 855 | int type; |
| 856 | struct super_block *sb = osb->sb; |
| 857 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, |
| 858 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; |
| 859 | int status = 0; |
| 860 | |
| 861 | for (type = 0; type < MAXQUOTAS; type++) { |
| 862 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
| 863 | continue; |
| 864 | if (unsuspend) |
| 865 | status = vfs_quota_enable( |
| 866 | sb_dqopt(sb)->files[type], |
| 867 | type, QFMT_OCFS2, |
| 868 | DQUOT_SUSPENDED); |
| 869 | else |
| 870 | status = vfs_quota_disable(sb, type, |
| 871 | DQUOT_SUSPENDED); |
| 872 | if (status < 0) |
| 873 | break; |
| 874 | } |
| 875 | if (status < 0) |
| 876 | mlog(ML_ERROR, "Failed to suspend/unsuspend quotas on " |
| 877 | "remount (error = %d).\n", status); |
| 878 | return status; |
| 879 | } |
| 880 | |
| 881 | static int ocfs2_enable_quotas(struct ocfs2_super *osb) |
| 882 | { |
| 883 | struct inode *inode[MAXQUOTAS] = { NULL, NULL }; |
| 884 | struct super_block *sb = osb->sb; |
| 885 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, |
| 886 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; |
| 887 | unsigned int ino[MAXQUOTAS] = { LOCAL_USER_QUOTA_SYSTEM_INODE, |
| 888 | LOCAL_GROUP_QUOTA_SYSTEM_INODE }; |
| 889 | int status; |
| 890 | int type; |
| 891 | |
| 892 | sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NEGATIVE_USAGE; |
| 893 | for (type = 0; type < MAXQUOTAS; type++) { |
| 894 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
| 895 | continue; |
| 896 | inode[type] = ocfs2_get_system_file_inode(osb, ino[type], |
| 897 | osb->slot_num); |
| 898 | if (!inode[type]) { |
| 899 | status = -ENOENT; |
| 900 | goto out_quota_off; |
| 901 | } |
| 902 | status = vfs_quota_enable(inode[type], type, QFMT_OCFS2, |
| 903 | DQUOT_USAGE_ENABLED); |
| 904 | if (status < 0) |
| 905 | goto out_quota_off; |
| 906 | } |
| 907 | |
| 908 | for (type = 0; type < MAXQUOTAS; type++) |
| 909 | iput(inode[type]); |
| 910 | return 0; |
| 911 | out_quota_off: |
| 912 | ocfs2_disable_quotas(osb); |
| 913 | for (type = 0; type < MAXQUOTAS; type++) |
| 914 | iput(inode[type]); |
| 915 | mlog_errno(status); |
| 916 | return status; |
| 917 | } |
| 918 | |
| 919 | static void ocfs2_disable_quotas(struct ocfs2_super *osb) |
| 920 | { |
| 921 | int type; |
| 922 | struct inode *inode; |
| 923 | struct super_block *sb = osb->sb; |
| 924 | |
| 925 | /* We mostly ignore errors in this function because there's not much |
| 926 | * we can do when we see them */ |
| 927 | for (type = 0; type < MAXQUOTAS; type++) { |
| 928 | if (!sb_has_quota_loaded(sb, type)) |
| 929 | continue; |
| 930 | inode = igrab(sb->s_dquot.files[type]); |
| 931 | /* Turn off quotas. This will remove all dquot structures from |
| 932 | * memory and so they will be automatically synced to global |
| 933 | * quota files */ |
| 934 | vfs_quota_disable(sb, type, DQUOT_USAGE_ENABLED | |
| 935 | DQUOT_LIMITS_ENABLED); |
| 936 | if (!inode) |
| 937 | continue; |
| 938 | iput(inode); |
| 939 | } |
| 940 | } |
| 941 | |
| 942 | /* Handle quota on quotactl */ |
| 943 | static int ocfs2_quota_on(struct super_block *sb, int type, int format_id, |
| 944 | char *path, int remount) |
| 945 | { |
| 946 | unsigned int feature[MAXQUOTAS] = { OCFS2_FEATURE_RO_COMPAT_USRQUOTA, |
| 947 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA}; |
| 948 | |
| 949 | if (!OCFS2_HAS_RO_COMPAT_FEATURE(sb, feature[type])) |
| 950 | return -EINVAL; |
| 951 | |
| 952 | if (remount) |
| 953 | return 0; /* Just ignore it has been handled in |
| 954 | * ocfs2_remount() */ |
| 955 | return vfs_quota_enable(sb_dqopt(sb)->files[type], type, |
| 956 | format_id, DQUOT_LIMITS_ENABLED); |
| 957 | } |
| 958 | |
| 959 | /* Handle quota off quotactl */ |
| 960 | static int ocfs2_quota_off(struct super_block *sb, int type, int remount) |
| 961 | { |
| 962 | if (remount) |
| 963 | return 0; /* Ignore now and handle later in |
| 964 | * ocfs2_remount() */ |
| 965 | return vfs_quota_disable(sb, type, DQUOT_LIMITS_ENABLED); |
| 966 | } |
| 967 | |
Alexey Dobriyan | 0d54b21 | 2009-09-21 17:01:09 -0700 | [diff] [blame] | 968 | static const struct quotactl_ops ocfs2_quotactl_ops = { |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 969 | .quota_on = ocfs2_quota_on, |
| 970 | .quota_off = ocfs2_quota_off, |
| 971 | .quota_sync = vfs_quota_sync, |
| 972 | .get_info = vfs_get_dqinfo, |
| 973 | .set_info = vfs_set_dqinfo, |
| 974 | .get_dqblk = vfs_get_dqblk, |
| 975 | .set_dqblk = vfs_set_dqblk, |
| 976 | }; |
| 977 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 978 | static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) |
| 979 | { |
| 980 | struct dentry *root; |
| 981 | int status, sector_size; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 982 | struct mount_options parsed_options; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 983 | struct inode *inode = NULL; |
| 984 | struct ocfs2_super *osb = NULL; |
| 985 | struct buffer_head *bh = NULL; |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 986 | char nodestr[8]; |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 987 | struct ocfs2_blockcheck_stats stats; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 988 | |
| 989 | mlog_entry("%p, %p, %i", sb, data, silent); |
| 990 | |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 991 | if (!ocfs2_parse_options(sb, data, &parsed_options, 0)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 992 | status = -EINVAL; |
| 993 | goto read_super_error; |
| 994 | } |
| 995 | |
| 996 | /* probe for superblock */ |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 997 | status = ocfs2_sb_probe(sb, &bh, §or_size, &stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 998 | if (status < 0) { |
| 999 | mlog(ML_ERROR, "superblock probe failed!\n"); |
| 1000 | goto read_super_error; |
| 1001 | } |
| 1002 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1003 | status = ocfs2_initialize_super(sb, bh, sector_size, &stats); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1004 | osb = OCFS2_SB(sb); |
| 1005 | if (status < 0) { |
| 1006 | mlog_errno(status); |
| 1007 | goto read_super_error; |
| 1008 | } |
| 1009 | brelse(bh); |
| 1010 | bh = NULL; |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1011 | |
| 1012 | if (!(osb->s_feature_incompat & OCFS2_FEATURE_INCOMPAT_XATTR)) |
| 1013 | parsed_options.mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; |
| 1014 | |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1015 | osb->s_mount_opt = parsed_options.mount_opt; |
| 1016 | osb->s_atime_quantum = parsed_options.atime_quantum; |
| 1017 | osb->preferred_slot = parsed_options.slot; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1018 | osb->osb_commit_interval = parsed_options.commit_interval; |
Mark Fasheh | 9c7af40 | 2008-07-28 18:02:53 -0700 | [diff] [blame] | 1019 | osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt); |
| 1020 | osb->local_alloc_bits = osb->local_alloc_default_bits; |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1021 | if (osb->s_mount_opt & OCFS2_MOUNT_USRQUOTA && |
| 1022 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, |
| 1023 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { |
| 1024 | status = -EINVAL; |
| 1025 | mlog(ML_ERROR, "User quotas were requested, but this " |
| 1026 | "filesystem does not have the feature enabled.\n"); |
| 1027 | goto read_super_error; |
| 1028 | } |
| 1029 | if (osb->s_mount_opt & OCFS2_MOUNT_GRPQUOTA && |
| 1030 | !OCFS2_HAS_RO_COMPAT_FEATURE(sb, |
| 1031 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { |
| 1032 | status = -EINVAL; |
| 1033 | mlog(ML_ERROR, "Group quotas were requested, but this " |
| 1034 | "filesystem does not have the feature enabled.\n"); |
| 1035 | goto read_super_error; |
| 1036 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1037 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1038 | status = ocfs2_verify_userspace_stack(osb, &parsed_options); |
| 1039 | if (status) |
| 1040 | goto read_super_error; |
| 1041 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1042 | sb->s_magic = OCFS2_SUPER_MAGIC; |
| 1043 | |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1044 | sb->s_flags = (sb->s_flags & ~MS_POSIXACL) | |
| 1045 | ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0); |
| 1046 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1047 | /* Hard readonly mode only if: bdev_read_only, MS_RDONLY, |
| 1048 | * heartbeat=none */ |
| 1049 | if (bdev_read_only(sb->s_bdev)) { |
| 1050 | if (!(sb->s_flags & MS_RDONLY)) { |
| 1051 | status = -EACCES; |
| 1052 | mlog(ML_ERROR, "Readonly device detected but readonly " |
| 1053 | "mount was not specified.\n"); |
| 1054 | goto read_super_error; |
| 1055 | } |
| 1056 | |
| 1057 | /* You should not be able to start a local heartbeat |
| 1058 | * on a readonly device. */ |
| 1059 | if (osb->s_mount_opt & OCFS2_MOUNT_HB_LOCAL) { |
| 1060 | status = -EROFS; |
| 1061 | mlog(ML_ERROR, "Local heartbeat specified on readonly " |
| 1062 | "device.\n"); |
| 1063 | goto read_super_error; |
| 1064 | } |
| 1065 | |
| 1066 | status = ocfs2_check_journals_nolocks(osb); |
| 1067 | if (status < 0) { |
| 1068 | if (status == -EROFS) |
| 1069 | mlog(ML_ERROR, "Recovery required on readonly " |
| 1070 | "file system, but write access is " |
| 1071 | "unavailable.\n"); |
| 1072 | else |
| 1073 | mlog_errno(status); |
| 1074 | goto read_super_error; |
| 1075 | } |
| 1076 | |
| 1077 | ocfs2_set_ro_flag(osb, 1); |
| 1078 | |
| 1079 | printk(KERN_NOTICE "Readonly device detected. No cluster " |
| 1080 | "services will be utilized for this mount. Recovery " |
| 1081 | "will be skipped.\n"); |
| 1082 | } |
| 1083 | |
| 1084 | if (!ocfs2_is_hard_readonly(osb)) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1085 | if (sb->s_flags & MS_RDONLY) |
| 1086 | ocfs2_set_ro_flag(osb, 0); |
| 1087 | } |
| 1088 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1089 | status = ocfs2_verify_heartbeat(osb); |
| 1090 | if (status < 0) { |
| 1091 | mlog_errno(status); |
| 1092 | goto read_super_error; |
| 1093 | } |
| 1094 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1095 | osb->osb_debug_root = debugfs_create_dir(osb->uuid_str, |
| 1096 | ocfs2_debugfs_root); |
| 1097 | if (!osb->osb_debug_root) { |
| 1098 | status = -EINVAL; |
| 1099 | mlog(ML_ERROR, "Unable to create per-mount debugfs root.\n"); |
| 1100 | goto read_super_error; |
| 1101 | } |
| 1102 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 1103 | osb->osb_ctxt = debugfs_create_file("fs_state", S_IFREG|S_IRUSR, |
| 1104 | osb->osb_debug_root, |
| 1105 | osb, |
| 1106 | &ocfs2_osb_debug_fops); |
| 1107 | if (!osb->osb_ctxt) { |
| 1108 | status = -EINVAL; |
| 1109 | mlog_errno(status); |
| 1110 | goto read_super_error; |
| 1111 | } |
| 1112 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1113 | if (ocfs2_meta_ecc(osb)) { |
| 1114 | status = ocfs2_blockcheck_stats_debugfs_install( |
| 1115 | &osb->osb_ecc_stats, |
| 1116 | osb->osb_debug_root); |
| 1117 | if (status) { |
| 1118 | mlog(ML_ERROR, |
| 1119 | "Unable to create blockcheck statistics " |
| 1120 | "files\n"); |
| 1121 | goto read_super_error; |
| 1122 | } |
| 1123 | } |
| 1124 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1125 | status = ocfs2_mount_volume(sb); |
| 1126 | if (osb->root_inode) |
| 1127 | inode = igrab(osb->root_inode); |
| 1128 | |
| 1129 | if (status < 0) |
| 1130 | goto read_super_error; |
| 1131 | |
| 1132 | if (!inode) { |
| 1133 | status = -EIO; |
| 1134 | mlog_errno(status); |
| 1135 | goto read_super_error; |
| 1136 | } |
| 1137 | |
| 1138 | root = d_alloc_root(inode); |
| 1139 | if (!root) { |
| 1140 | status = -ENOMEM; |
| 1141 | mlog_errno(status); |
| 1142 | goto read_super_error; |
| 1143 | } |
| 1144 | |
| 1145 | sb->s_root = root; |
| 1146 | |
| 1147 | ocfs2_complete_mount_recovery(osb); |
| 1148 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1149 | if (ocfs2_mount_local(osb)) |
| 1150 | snprintf(nodestr, sizeof(nodestr), "local"); |
| 1151 | else |
Joel Becker | 19fdb62 | 2008-01-30 15:38:24 -0800 | [diff] [blame] | 1152 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1153 | |
| 1154 | printk(KERN_INFO "ocfs2: Mounting device (%s) on (node %s, slot %d) " |
Sunil Mushran | 781ee3e | 2006-04-27 16:41:31 -0700 | [diff] [blame] | 1155 | "with %s data mode.\n", |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1156 | osb->dev_str, nodestr, osb->slot_num, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1157 | osb->s_mount_opt & OCFS2_MOUNT_DATA_WRITEBACK ? "writeback" : |
| 1158 | "ordered"); |
| 1159 | |
| 1160 | atomic_set(&osb->vol_state, VOLUME_MOUNTED); |
| 1161 | wake_up(&osb->osb_mount_event); |
| 1162 | |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1163 | /* Now we can initialize quotas because we can afford to wait |
| 1164 | * for cluster locks recovery now. That also means that truncation |
| 1165 | * log recovery can happen but that waits for proper quota setup */ |
| 1166 | if (!(sb->s_flags & MS_RDONLY)) { |
| 1167 | status = ocfs2_enable_quotas(osb); |
| 1168 | if (status < 0) { |
| 1169 | /* We have to err-out specially here because |
| 1170 | * s_root is already set */ |
| 1171 | mlog_errno(status); |
| 1172 | atomic_set(&osb->vol_state, VOLUME_DISABLED); |
| 1173 | wake_up(&osb->osb_mount_event); |
| 1174 | mlog_exit(status); |
| 1175 | return status; |
| 1176 | } |
| 1177 | } |
| 1178 | |
| 1179 | ocfs2_complete_quota_recovery(osb); |
| 1180 | |
| 1181 | /* Now we wake up again for processes waiting for quotas */ |
| 1182 | atomic_set(&osb->vol_state, VOLUME_MOUNTED_QUOTAS); |
| 1183 | wake_up(&osb->osb_mount_event); |
| 1184 | |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 1185 | /* Start this when the mount is almost sure of being successful */ |
Jeff Mahoney | 8b712cd | 2009-07-07 17:22:12 -0400 | [diff] [blame] | 1186 | ocfs2_orphan_scan_start(osb); |
Sunil Mushran | df152c2 | 2009-06-22 11:40:07 -0700 | [diff] [blame] | 1187 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1188 | mlog_exit(status); |
| 1189 | return status; |
| 1190 | |
| 1191 | read_super_error: |
Mark Fasheh | a81cb88 | 2008-10-07 14:25:16 -0700 | [diff] [blame] | 1192 | brelse(bh); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1193 | |
| 1194 | if (inode) |
| 1195 | iput(inode); |
| 1196 | |
| 1197 | if (osb) { |
| 1198 | atomic_set(&osb->vol_state, VOLUME_DISABLED); |
| 1199 | wake_up(&osb->osb_mount_event); |
| 1200 | ocfs2_dismount_volume(sb, 1); |
| 1201 | } |
| 1202 | |
| 1203 | mlog_exit(status); |
| 1204 | return status; |
| 1205 | } |
| 1206 | |
David Howells | 454e239 | 2006-06-23 02:02:57 -0700 | [diff] [blame] | 1207 | static int ocfs2_get_sb(struct file_system_type *fs_type, |
| 1208 | int flags, |
| 1209 | const char *dev_name, |
| 1210 | void *data, |
| 1211 | struct vfsmount *mnt) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1212 | { |
David Howells | 454e239 | 2006-06-23 02:02:57 -0700 | [diff] [blame] | 1213 | return get_sb_bdev(fs_type, flags, dev_name, data, ocfs2_fill_super, |
| 1214 | mnt); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1215 | } |
| 1216 | |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1217 | static void ocfs2_kill_sb(struct super_block *sb) |
| 1218 | { |
| 1219 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 1220 | |
Jan Kara | 5fd1318 | 2009-07-30 17:01:53 +0200 | [diff] [blame] | 1221 | /* Failed mount? */ |
| 1222 | if (!osb || atomic_read(&osb->vol_state) == VOLUME_DISABLED) |
| 1223 | goto out; |
| 1224 | |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1225 | /* Prevent further queueing of inode drop events */ |
| 1226 | spin_lock(&dentry_list_lock); |
| 1227 | ocfs2_set_osb_flag(osb, OCFS2_OSB_DROP_DENTRY_LOCK_IMMED); |
| 1228 | spin_unlock(&dentry_list_lock); |
| 1229 | /* Wait for work to finish and/or remove it */ |
| 1230 | cancel_work_sync(&osb->dentry_lock_work); |
Jan Kara | 5fd1318 | 2009-07-30 17:01:53 +0200 | [diff] [blame] | 1231 | out: |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1232 | kill_block_super(sb); |
| 1233 | } |
| 1234 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1235 | static struct file_system_type ocfs2_fs_type = { |
| 1236 | .owner = THIS_MODULE, |
| 1237 | .name = "ocfs2", |
| 1238 | .get_sb = ocfs2_get_sb, /* is this called when we mount |
| 1239 | * the fs? */ |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1240 | .kill_sb = ocfs2_kill_sb, |
| 1241 | |
Mark Fasheh | 1ba9da2 | 2006-09-08 14:22:54 -0700 | [diff] [blame] | 1242 | .fs_flags = FS_REQUIRES_DEV|FS_RENAME_DOES_D_MOVE, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1243 | .next = NULL |
| 1244 | }; |
| 1245 | |
| 1246 | static int ocfs2_parse_options(struct super_block *sb, |
| 1247 | char *options, |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1248 | struct mount_options *mopt, |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1249 | int is_remount) |
| 1250 | { |
| 1251 | int status; |
| 1252 | char *p; |
| 1253 | |
| 1254 | mlog_entry("remount: %d, options: \"%s\"\n", is_remount, |
| 1255 | options ? options : "(none)"); |
| 1256 | |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1257 | mopt->commit_interval = 0; |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1258 | mopt->mount_opt = 0; |
| 1259 | mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
| 1260 | mopt->slot = OCFS2_INVALID_SLOT; |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 1261 | mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1262 | mopt->cluster_stack[0] = '\0'; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1263 | |
| 1264 | if (!options) { |
| 1265 | status = 1; |
| 1266 | goto bail; |
| 1267 | } |
| 1268 | |
| 1269 | while ((p = strsep(&options, ",")) != NULL) { |
| 1270 | int token, option; |
| 1271 | substring_t args[MAX_OPT_ARGS]; |
| 1272 | |
| 1273 | if (!*p) |
| 1274 | continue; |
| 1275 | |
| 1276 | token = match_token(p, tokens, args); |
| 1277 | switch (token) { |
| 1278 | case Opt_hb_local: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1279 | mopt->mount_opt |= OCFS2_MOUNT_HB_LOCAL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1280 | break; |
| 1281 | case Opt_hb_none: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1282 | mopt->mount_opt &= ~OCFS2_MOUNT_HB_LOCAL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1283 | break; |
| 1284 | case Opt_barrier: |
| 1285 | if (match_int(&args[0], &option)) { |
| 1286 | status = 0; |
| 1287 | goto bail; |
| 1288 | } |
| 1289 | if (option) |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1290 | mopt->mount_opt |= OCFS2_MOUNT_BARRIER; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1291 | else |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1292 | mopt->mount_opt &= ~OCFS2_MOUNT_BARRIER; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1293 | break; |
| 1294 | case Opt_intr: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1295 | mopt->mount_opt &= ~OCFS2_MOUNT_NOINTR; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1296 | break; |
| 1297 | case Opt_nointr: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1298 | mopt->mount_opt |= OCFS2_MOUNT_NOINTR; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1299 | break; |
| 1300 | case Opt_err_panic: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1301 | mopt->mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1302 | break; |
| 1303 | case Opt_err_ro: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1304 | mopt->mount_opt &= ~OCFS2_MOUNT_ERRORS_PANIC; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1305 | break; |
| 1306 | case Opt_data_ordered: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1307 | mopt->mount_opt &= ~OCFS2_MOUNT_DATA_WRITEBACK; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1308 | break; |
| 1309 | case Opt_data_writeback: |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1310 | mopt->mount_opt |= OCFS2_MOUNT_DATA_WRITEBACK; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1311 | break; |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 1312 | case Opt_user_xattr: |
| 1313 | mopt->mount_opt &= ~OCFS2_MOUNT_NOUSERXATTR; |
| 1314 | break; |
| 1315 | case Opt_nouser_xattr: |
| 1316 | mopt->mount_opt |= OCFS2_MOUNT_NOUSERXATTR; |
| 1317 | break; |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 1318 | case Opt_atime_quantum: |
| 1319 | if (match_int(&args[0], &option)) { |
| 1320 | status = 0; |
| 1321 | goto bail; |
| 1322 | } |
| 1323 | if (option >= 0) |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1324 | mopt->atime_quantum = option; |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 1325 | break; |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 1326 | case Opt_slot: |
| 1327 | option = 0; |
| 1328 | if (match_int(&args[0], &option)) { |
| 1329 | status = 0; |
| 1330 | goto bail; |
| 1331 | } |
| 1332 | if (option) |
Tiger Yang | c0123ad | 2007-09-08 00:16:10 +0800 | [diff] [blame] | 1333 | mopt->slot = (s16)option; |
Sunil Mushran | baf4661 | 2007-06-18 17:00:24 -0700 | [diff] [blame] | 1334 | break; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1335 | case Opt_commit: |
| 1336 | option = 0; |
| 1337 | if (match_int(&args[0], &option)) { |
| 1338 | status = 0; |
| 1339 | goto bail; |
| 1340 | } |
| 1341 | if (option < 0) |
| 1342 | return 0; |
| 1343 | if (option == 0) |
Joel Becker | 2b4e30f | 2008-09-03 20:03:41 -0700 | [diff] [blame] | 1344 | option = JBD2_DEFAULT_MAX_COMMIT_AGE; |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1345 | mopt->commit_interval = HZ * option; |
| 1346 | break; |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 1347 | case Opt_localalloc: |
| 1348 | option = 0; |
| 1349 | if (match_int(&args[0], &option)) { |
| 1350 | status = 0; |
| 1351 | goto bail; |
| 1352 | } |
| 1353 | if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8)) |
| 1354 | mopt->localalloc_opt = option; |
| 1355 | break; |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 1356 | case Opt_localflocks: |
| 1357 | /* |
| 1358 | * Changing this during remount could race |
| 1359 | * flock() requests, or "unbalance" existing |
| 1360 | * ones (e.g., a lock is taken in one mode but |
| 1361 | * dropped in the other). If users care enough |
| 1362 | * to flip locking modes during remount, we |
| 1363 | * could add a "local" flag to individual |
| 1364 | * flock structures for proper tracking of |
| 1365 | * state. |
| 1366 | */ |
| 1367 | if (!is_remount) |
| 1368 | mopt->mount_opt |= OCFS2_MOUNT_LOCALFLOCKS; |
| 1369 | break; |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1370 | case Opt_stack: |
| 1371 | /* Check both that the option we were passed |
| 1372 | * is of the right length and that it is a proper |
| 1373 | * string of the right length. |
| 1374 | */ |
| 1375 | if (((args[0].to - args[0].from) != |
| 1376 | OCFS2_STACK_LABEL_LEN) || |
| 1377 | (strnlen(args[0].from, |
| 1378 | OCFS2_STACK_LABEL_LEN) != |
| 1379 | OCFS2_STACK_LABEL_LEN)) { |
| 1380 | mlog(ML_ERROR, |
| 1381 | "Invalid cluster_stack option\n"); |
| 1382 | status = 0; |
| 1383 | goto bail; |
| 1384 | } |
| 1385 | memcpy(mopt->cluster_stack, args[0].from, |
| 1386 | OCFS2_STACK_LABEL_LEN); |
| 1387 | mopt->cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; |
| 1388 | break; |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 1389 | case Opt_inode64: |
| 1390 | mopt->mount_opt |= OCFS2_MOUNT_INODE64; |
| 1391 | break; |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1392 | case Opt_usrquota: |
| 1393 | /* We check only on remount, otherwise features |
| 1394 | * aren't yet initialized. */ |
| 1395 | if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, |
| 1396 | OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { |
| 1397 | mlog(ML_ERROR, "User quota requested but " |
| 1398 | "filesystem feature is not set\n"); |
| 1399 | status = 0; |
| 1400 | goto bail; |
| 1401 | } |
| 1402 | mopt->mount_opt |= OCFS2_MOUNT_USRQUOTA; |
| 1403 | break; |
| 1404 | case Opt_grpquota: |
| 1405 | if (is_remount && !OCFS2_HAS_RO_COMPAT_FEATURE(sb, |
| 1406 | OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { |
| 1407 | mlog(ML_ERROR, "Group quota requested but " |
| 1408 | "filesystem feature is not set\n"); |
| 1409 | status = 0; |
| 1410 | goto bail; |
| 1411 | } |
| 1412 | mopt->mount_opt |= OCFS2_MOUNT_GRPQUOTA; |
| 1413 | break; |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1414 | #ifdef CONFIG_OCFS2_FS_POSIX_ACL |
| 1415 | case Opt_acl: |
| 1416 | mopt->mount_opt |= OCFS2_MOUNT_POSIX_ACL; |
| 1417 | break; |
| 1418 | case Opt_noacl: |
| 1419 | mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; |
| 1420 | break; |
| 1421 | #else |
| 1422 | case Opt_acl: |
| 1423 | case Opt_noacl: |
| 1424 | printk(KERN_INFO "ocfs2 (no)acl options not supported\n"); |
| 1425 | break; |
| 1426 | #endif |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1427 | default: |
| 1428 | mlog(ML_ERROR, |
| 1429 | "Unrecognized mount option \"%s\" " |
| 1430 | "or missing value\n", p); |
| 1431 | status = 0; |
| 1432 | goto bail; |
| 1433 | } |
| 1434 | } |
| 1435 | |
| 1436 | status = 1; |
| 1437 | |
| 1438 | bail: |
| 1439 | mlog_exit(status); |
| 1440 | return status; |
| 1441 | } |
| 1442 | |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1443 | static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) |
| 1444 | { |
| 1445 | struct ocfs2_super *osb = OCFS2_SB(mnt->mnt_sb); |
| 1446 | unsigned long opts = osb->s_mount_opt; |
Mark Fasheh | ebcee4b | 2008-07-28 14:55:20 -0700 | [diff] [blame] | 1447 | unsigned int local_alloc_megs; |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1448 | |
| 1449 | if (opts & OCFS2_MOUNT_HB_LOCAL) |
| 1450 | seq_printf(s, ",_netdev,heartbeat=local"); |
| 1451 | else |
| 1452 | seq_printf(s, ",heartbeat=none"); |
| 1453 | |
| 1454 | if (opts & OCFS2_MOUNT_NOINTR) |
| 1455 | seq_printf(s, ",nointr"); |
| 1456 | |
| 1457 | if (opts & OCFS2_MOUNT_DATA_WRITEBACK) |
| 1458 | seq_printf(s, ",data=writeback"); |
| 1459 | else |
| 1460 | seq_printf(s, ",data=ordered"); |
| 1461 | |
| 1462 | if (opts & OCFS2_MOUNT_BARRIER) |
| 1463 | seq_printf(s, ",barrier=1"); |
| 1464 | |
| 1465 | if (opts & OCFS2_MOUNT_ERRORS_PANIC) |
| 1466 | seq_printf(s, ",errors=panic"); |
| 1467 | else |
| 1468 | seq_printf(s, ",errors=remount-ro"); |
| 1469 | |
| 1470 | if (osb->preferred_slot != OCFS2_INVALID_SLOT) |
| 1471 | seq_printf(s, ",preferred_slot=%d", osb->preferred_slot); |
| 1472 | |
| 1473 | if (osb->s_atime_quantum != OCFS2_DEFAULT_ATIME_QUANTUM) |
| 1474 | seq_printf(s, ",atime_quantum=%u", osb->s_atime_quantum); |
| 1475 | |
Mark Fasheh | d147b3d | 2007-11-07 14:40:36 -0800 | [diff] [blame] | 1476 | if (osb->osb_commit_interval) |
| 1477 | seq_printf(s, ",commit=%u", |
| 1478 | (unsigned) (osb->osb_commit_interval / HZ)); |
| 1479 | |
Mark Fasheh | ebcee4b | 2008-07-28 14:55:20 -0700 | [diff] [blame] | 1480 | local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits); |
| 1481 | if (local_alloc_megs != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE) |
| 1482 | seq_printf(s, ",localalloc=%d", local_alloc_megs); |
Sunil Mushran | 2fbe8d1 | 2007-12-20 14:58:11 -0800 | [diff] [blame] | 1483 | |
Mark Fasheh | 53fc622 | 2007-12-20 16:49:04 -0800 | [diff] [blame] | 1484 | if (opts & OCFS2_MOUNT_LOCALFLOCKS) |
| 1485 | seq_printf(s, ",localflocks,"); |
| 1486 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1487 | if (osb->osb_cluster_stack[0]) |
| 1488 | seq_printf(s, ",cluster_stack=%.*s", OCFS2_STACK_LABEL_LEN, |
| 1489 | osb->osb_cluster_stack); |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1490 | if (opts & OCFS2_MOUNT_USRQUOTA) |
| 1491 | seq_printf(s, ",usrquota"); |
| 1492 | if (opts & OCFS2_MOUNT_GRPQUOTA) |
| 1493 | seq_printf(s, ",grpquota"); |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 1494 | |
Sunil Mushran | b0f73cf | 2008-09-05 11:29:14 -0700 | [diff] [blame] | 1495 | if (opts & OCFS2_MOUNT_NOUSERXATTR) |
| 1496 | seq_printf(s, ",nouser_xattr"); |
| 1497 | else |
| 1498 | seq_printf(s, ",user_xattr"); |
| 1499 | |
Joel Becker | 12462f1 | 2008-09-03 20:03:40 -0700 | [diff] [blame] | 1500 | if (opts & OCFS2_MOUNT_INODE64) |
| 1501 | seq_printf(s, ",inode64"); |
| 1502 | |
Tiger Yang | a68979b | 2008-11-14 11:17:52 +0800 | [diff] [blame] | 1503 | #ifdef CONFIG_OCFS2_FS_POSIX_ACL |
| 1504 | if (opts & OCFS2_MOUNT_POSIX_ACL) |
| 1505 | seq_printf(s, ",acl"); |
| 1506 | else |
| 1507 | seq_printf(s, ",noacl"); |
| 1508 | #endif |
| 1509 | |
Sunil Mushran | d550071 | 2007-09-06 13:34:16 -0700 | [diff] [blame] | 1510 | return 0; |
| 1511 | } |
| 1512 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1513 | static int __init ocfs2_init(void) |
| 1514 | { |
| 1515 | int status; |
| 1516 | |
| 1517 | mlog_entry_void(); |
| 1518 | |
| 1519 | ocfs2_print_version(); |
| 1520 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1521 | status = init_ocfs2_uptodate_cache(); |
| 1522 | if (status < 0) { |
| 1523 | mlog_errno(status); |
| 1524 | goto leave; |
| 1525 | } |
| 1526 | |
| 1527 | status = ocfs2_initialize_mem_caches(); |
| 1528 | if (status < 0) { |
| 1529 | mlog_errno(status); |
| 1530 | goto leave; |
| 1531 | } |
| 1532 | |
| 1533 | ocfs2_wq = create_singlethread_workqueue("ocfs2_wq"); |
| 1534 | if (!ocfs2_wq) { |
| 1535 | status = -ENOMEM; |
| 1536 | goto leave; |
| 1537 | } |
| 1538 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1539 | ocfs2_debugfs_root = debugfs_create_dir("ocfs2", NULL); |
| 1540 | if (!ocfs2_debugfs_root) { |
| 1541 | status = -EFAULT; |
| 1542 | mlog(ML_ERROR, "Unable to create ocfs2 debugfs root.\n"); |
| 1543 | } |
| 1544 | |
Mark Fasheh | 171bf93 | 2008-10-20 15:36:47 +0200 | [diff] [blame] | 1545 | status = ocfs2_quota_setup(); |
| 1546 | if (status) |
| 1547 | goto leave; |
| 1548 | |
Joel Becker | 63e0c48 | 2008-01-30 16:58:36 -0800 | [diff] [blame] | 1549 | ocfs2_set_locking_protocol(); |
| 1550 | |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1551 | status = register_quota_format(&ocfs2_quota_format); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1552 | leave: |
| 1553 | if (status < 0) { |
Mark Fasheh | 171bf93 | 2008-10-20 15:36:47 +0200 | [diff] [blame] | 1554 | ocfs2_quota_shutdown(); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1555 | ocfs2_free_mem_caches(); |
| 1556 | exit_ocfs2_uptodate_cache(); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1557 | } |
| 1558 | |
| 1559 | mlog_exit(status); |
| 1560 | |
| 1561 | if (status >= 0) { |
| 1562 | return register_filesystem(&ocfs2_fs_type); |
| 1563 | } else |
| 1564 | return -1; |
| 1565 | } |
| 1566 | |
| 1567 | static void __exit ocfs2_exit(void) |
| 1568 | { |
| 1569 | mlog_entry_void(); |
| 1570 | |
Mark Fasheh | 171bf93 | 2008-10-20 15:36:47 +0200 | [diff] [blame] | 1571 | ocfs2_quota_shutdown(); |
| 1572 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1573 | if (ocfs2_wq) { |
| 1574 | flush_workqueue(ocfs2_wq); |
| 1575 | destroy_workqueue(ocfs2_wq); |
| 1576 | } |
| 1577 | |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1578 | unregister_quota_format(&ocfs2_quota_format); |
| 1579 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1580 | debugfs_remove(ocfs2_debugfs_root); |
| 1581 | |
| 1582 | ocfs2_free_mem_caches(); |
| 1583 | |
| 1584 | unregister_filesystem(&ocfs2_fs_type); |
| 1585 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1586 | exit_ocfs2_uptodate_cache(); |
| 1587 | |
| 1588 | mlog_exit_void(); |
| 1589 | } |
| 1590 | |
| 1591 | static void ocfs2_put_super(struct super_block *sb) |
| 1592 | { |
| 1593 | mlog_entry("(0x%p)\n", sb); |
| 1594 | |
Christoph Hellwig | 6cfd014 | 2009-05-05 15:40:36 +0200 | [diff] [blame] | 1595 | lock_kernel(); |
| 1596 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1597 | ocfs2_sync_blockdev(sb); |
| 1598 | ocfs2_dismount_volume(sb, 0); |
| 1599 | |
Christoph Hellwig | 6cfd014 | 2009-05-05 15:40:36 +0200 | [diff] [blame] | 1600 | unlock_kernel(); |
| 1601 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1602 | mlog_exit_void(); |
| 1603 | } |
| 1604 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1605 | static int ocfs2_statfs(struct dentry *dentry, struct kstatfs *buf) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1606 | { |
| 1607 | struct ocfs2_super *osb; |
| 1608 | u32 numbits, freebits; |
| 1609 | int status; |
| 1610 | struct ocfs2_dinode *bm_lock; |
| 1611 | struct buffer_head *bh = NULL; |
| 1612 | struct inode *inode = NULL; |
| 1613 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1614 | mlog_entry("(%p, %p)\n", dentry->d_sb, buf); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1615 | |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1616 | osb = OCFS2_SB(dentry->d_sb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1617 | |
| 1618 | inode = ocfs2_get_system_file_inode(osb, |
| 1619 | GLOBAL_BITMAP_SYSTEM_INODE, |
| 1620 | OCFS2_INVALID_SLOT); |
| 1621 | if (!inode) { |
| 1622 | mlog(ML_ERROR, "failed to get bitmap inode\n"); |
| 1623 | status = -EIO; |
| 1624 | goto bail; |
| 1625 | } |
| 1626 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1627 | status = ocfs2_inode_lock(inode, &bh, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1628 | if (status < 0) { |
| 1629 | mlog_errno(status); |
| 1630 | goto bail; |
| 1631 | } |
| 1632 | |
| 1633 | bm_lock = (struct ocfs2_dinode *) bh->b_data; |
| 1634 | |
| 1635 | numbits = le32_to_cpu(bm_lock->id1.bitmap1.i_total); |
| 1636 | freebits = numbits - le32_to_cpu(bm_lock->id1.bitmap1.i_used); |
| 1637 | |
| 1638 | buf->f_type = OCFS2_SUPER_MAGIC; |
David Howells | 726c334 | 2006-06-23 02:02:58 -0700 | [diff] [blame] | 1639 | buf->f_bsize = dentry->d_sb->s_blocksize; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1640 | buf->f_namelen = OCFS2_MAX_FILENAME_LEN; |
| 1641 | buf->f_blocks = ((sector_t) numbits) * |
| 1642 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); |
| 1643 | buf->f_bfree = ((sector_t) freebits) * |
| 1644 | (osb->s_clustersize >> osb->sb->s_blocksize_bits); |
| 1645 | buf->f_bavail = buf->f_bfree; |
| 1646 | buf->f_files = numbits; |
| 1647 | buf->f_ffree = freebits; |
| 1648 | |
| 1649 | brelse(bh); |
| 1650 | |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1651 | ocfs2_inode_unlock(inode, 0); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1652 | status = 0; |
| 1653 | bail: |
| 1654 | if (inode) |
| 1655 | iput(inode); |
| 1656 | |
| 1657 | mlog_exit(status); |
| 1658 | |
| 1659 | return status; |
| 1660 | } |
| 1661 | |
Alexey Dobriyan | 51cc506 | 2008-07-25 19:45:34 -0700 | [diff] [blame] | 1662 | static void ocfs2_inode_init_once(void *data) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1663 | { |
| 1664 | struct ocfs2_inode_info *oi = data; |
| 1665 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1666 | oi->ip_flags = 0; |
| 1667 | oi->ip_open_count = 0; |
| 1668 | spin_lock_init(&oi->ip_lock); |
| 1669 | ocfs2_extent_map_init(&oi->vfs_inode); |
| 1670 | INIT_LIST_HEAD(&oi->ip_io_markers); |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1671 | oi->ip_dir_start_lookup = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1672 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1673 | init_rwsem(&oi->ip_alloc_sem); |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 1674 | init_rwsem(&oi->ip_xattr_sem); |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1675 | mutex_init(&oi->ip_io_mutex); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1676 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1677 | oi->ip_blkno = 0ULL; |
| 1678 | oi->ip_clusters = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1679 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1680 | ocfs2_lock_res_init_once(&oi->ip_rw_lockres); |
Mark Fasheh | e63aecb6 | 2007-10-18 15:30:42 -0700 | [diff] [blame] | 1681 | ocfs2_lock_res_init_once(&oi->ip_inode_lockres); |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1682 | ocfs2_lock_res_init_once(&oi->ip_open_lockres); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1683 | |
Joel Becker | 8cb471e | 2009-02-10 20:00:41 -0800 | [diff] [blame] | 1684 | ocfs2_metadata_cache_init(INODE_CACHE(&oi->vfs_inode), |
Joel Becker | 6e5a3d7 | 2009-02-10 19:00:37 -0800 | [diff] [blame] | 1685 | &ocfs2_inode_caching_ops); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1686 | |
Christoph Lameter | a35afb8 | 2007-05-16 22:10:57 -0700 | [diff] [blame] | 1687 | inode_init_once(&oi->vfs_inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1688 | } |
| 1689 | |
| 1690 | static int ocfs2_initialize_mem_caches(void) |
| 1691 | { |
| 1692 | ocfs2_inode_cachep = kmem_cache_create("ocfs2_inode_cache", |
Paul Jackson | fffb60f | 2006-03-24 03:16:06 -0800 | [diff] [blame] | 1693 | sizeof(struct ocfs2_inode_info), |
| 1694 | 0, |
| 1695 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| |
| 1696 | SLAB_MEM_SPREAD), |
Paul Mundt | 20c2df8 | 2007-07-20 10:11:58 +0900 | [diff] [blame] | 1697 | ocfs2_inode_init_once); |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1698 | ocfs2_dquot_cachep = kmem_cache_create("ocfs2_dquot_cache", |
| 1699 | sizeof(struct ocfs2_dquot), |
| 1700 | 0, |
| 1701 | (SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT| |
| 1702 | SLAB_MEM_SPREAD), |
| 1703 | NULL); |
| 1704 | ocfs2_qf_chunk_cachep = kmem_cache_create("ocfs2_qf_chunk_cache", |
| 1705 | sizeof(struct ocfs2_quota_chunk), |
| 1706 | 0, |
| 1707 | (SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD), |
| 1708 | NULL); |
| 1709 | if (!ocfs2_inode_cachep || !ocfs2_dquot_cachep || |
| 1710 | !ocfs2_qf_chunk_cachep) { |
| 1711 | if (ocfs2_inode_cachep) |
| 1712 | kmem_cache_destroy(ocfs2_inode_cachep); |
| 1713 | if (ocfs2_dquot_cachep) |
| 1714 | kmem_cache_destroy(ocfs2_dquot_cachep); |
| 1715 | if (ocfs2_qf_chunk_cachep) |
| 1716 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1717 | return -ENOMEM; |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1718 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1719 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1720 | return 0; |
| 1721 | } |
| 1722 | |
| 1723 | static void ocfs2_free_mem_caches(void) |
| 1724 | { |
| 1725 | if (ocfs2_inode_cachep) |
| 1726 | kmem_cache_destroy(ocfs2_inode_cachep); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1727 | ocfs2_inode_cachep = NULL; |
Jan Kara | 9e33d69 | 2008-08-25 19:56:50 +0200 | [diff] [blame] | 1728 | |
| 1729 | if (ocfs2_dquot_cachep) |
| 1730 | kmem_cache_destroy(ocfs2_dquot_cachep); |
| 1731 | ocfs2_dquot_cachep = NULL; |
| 1732 | |
| 1733 | if (ocfs2_qf_chunk_cachep) |
| 1734 | kmem_cache_destroy(ocfs2_qf_chunk_cachep); |
| 1735 | ocfs2_qf_chunk_cachep = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1736 | } |
| 1737 | |
| 1738 | static int ocfs2_get_sector(struct super_block *sb, |
| 1739 | struct buffer_head **bh, |
| 1740 | int block, |
| 1741 | int sect_size) |
| 1742 | { |
| 1743 | if (!sb_set_blocksize(sb, sect_size)) { |
| 1744 | mlog(ML_ERROR, "unable to set blocksize\n"); |
| 1745 | return -EIO; |
| 1746 | } |
| 1747 | |
| 1748 | *bh = sb_getblk(sb, block); |
| 1749 | if (!*bh) { |
| 1750 | mlog_errno(-EIO); |
| 1751 | return -EIO; |
| 1752 | } |
| 1753 | lock_buffer(*bh); |
| 1754 | if (!buffer_dirty(*bh)) |
| 1755 | clear_buffer_uptodate(*bh); |
| 1756 | unlock_buffer(*bh); |
| 1757 | ll_rw_block(READ, 1, bh); |
| 1758 | wait_on_buffer(*bh); |
wengang wang | 28d57d4 | 2009-02-13 10:11:47 +0800 | [diff] [blame] | 1759 | if (!buffer_uptodate(*bh)) { |
| 1760 | mlog_errno(-EIO); |
| 1761 | brelse(*bh); |
| 1762 | *bh = NULL; |
| 1763 | return -EIO; |
| 1764 | } |
| 1765 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1766 | return 0; |
| 1767 | } |
| 1768 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1769 | static int ocfs2_mount_volume(struct super_block *sb) |
| 1770 | { |
| 1771 | int status = 0; |
| 1772 | int unlock_super = 0; |
| 1773 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 1774 | |
| 1775 | mlog_entry_void(); |
| 1776 | |
| 1777 | if (ocfs2_is_hard_readonly(osb)) |
| 1778 | goto leave; |
| 1779 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1780 | status = ocfs2_dlm_init(osb); |
| 1781 | if (status < 0) { |
| 1782 | mlog_errno(status); |
| 1783 | goto leave; |
| 1784 | } |
| 1785 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1786 | status = ocfs2_super_lock(osb, 1); |
| 1787 | if (status < 0) { |
| 1788 | mlog_errno(status); |
| 1789 | goto leave; |
| 1790 | } |
| 1791 | unlock_super = 1; |
| 1792 | |
| 1793 | /* This will load up the node map and add ourselves to it. */ |
| 1794 | status = ocfs2_find_slot(osb); |
| 1795 | if (status < 0) { |
| 1796 | mlog_errno(status); |
| 1797 | goto leave; |
| 1798 | } |
| 1799 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1800 | /* load all node-local system inodes */ |
| 1801 | status = ocfs2_init_local_system_inodes(osb); |
| 1802 | if (status < 0) { |
| 1803 | mlog_errno(status); |
| 1804 | goto leave; |
| 1805 | } |
| 1806 | |
| 1807 | status = ocfs2_check_volume(osb); |
| 1808 | if (status < 0) { |
| 1809 | mlog_errno(status); |
| 1810 | goto leave; |
| 1811 | } |
| 1812 | |
| 1813 | status = ocfs2_truncate_log_init(osb); |
Tao Ma | 06c59bb | 2009-05-19 06:47:20 +0800 | [diff] [blame] | 1814 | if (status < 0) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1815 | mlog_errno(status); |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1816 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1817 | leave: |
| 1818 | if (unlock_super) |
| 1819 | ocfs2_super_unlock(osb, 1); |
| 1820 | |
| 1821 | mlog_exit(status); |
| 1822 | return status; |
| 1823 | } |
| 1824 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1825 | static void ocfs2_dismount_volume(struct super_block *sb, int mnt_err) |
| 1826 | { |
Joel Becker | 286eaa9 | 2008-02-01 15:03:57 -0800 | [diff] [blame] | 1827 | int tmp, hangup_needed = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1828 | struct ocfs2_super *osb = NULL; |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1829 | char nodestr[8]; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1830 | |
| 1831 | mlog_entry("(0x%p)\n", sb); |
| 1832 | |
| 1833 | BUG_ON(!sb); |
| 1834 | osb = OCFS2_SB(sb); |
| 1835 | BUG_ON(!osb); |
| 1836 | |
Sunil Mushran | 5039750 | 2008-12-17 14:17:43 -0800 | [diff] [blame] | 1837 | debugfs_remove(osb->osb_ctxt); |
| 1838 | |
Jan Kara | f7b1aa6 | 2009-07-20 12:12:36 +0200 | [diff] [blame] | 1839 | /* |
| 1840 | * Flush inode dropping work queue so that deletes are |
| 1841 | * performed while the filesystem is still working |
| 1842 | */ |
| 1843 | ocfs2_drop_all_dl_inodes(osb); |
| 1844 | |
Sunil Mushran | 692684e | 2009-06-19 16:53:17 -0700 | [diff] [blame] | 1845 | /* Orphan scan should be stopped as early as possible */ |
| 1846 | ocfs2_orphan_scan_stop(osb); |
| 1847 | |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1848 | ocfs2_disable_quotas(osb); |
| 1849 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1850 | ocfs2_shutdown_local_alloc(osb); |
| 1851 | |
| 1852 | ocfs2_truncate_log_shutdown(osb); |
| 1853 | |
Joel Becker | 553abd0 | 2008-02-01 12:03:57 -0800 | [diff] [blame] | 1854 | /* This will disable recovery and flush any recovery work. */ |
| 1855 | ocfs2_recovery_exit(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1856 | |
| 1857 | ocfs2_journal_shutdown(osb); |
| 1858 | |
| 1859 | ocfs2_sync_blockdev(sb); |
| 1860 | |
Tao Ma | 374a263 | 2009-08-24 11:13:37 +0800 | [diff] [blame] | 1861 | ocfs2_purge_refcount_trees(osb); |
| 1862 | |
Joel Becker | 4670c46 | 2008-02-01 14:39:35 -0800 | [diff] [blame] | 1863 | /* No cluster connection means we've failed during mount, so skip |
| 1864 | * all the steps which depended on that to complete. */ |
| 1865 | if (osb->cconn) { |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1866 | tmp = ocfs2_super_lock(osb, 1); |
| 1867 | if (tmp < 0) { |
| 1868 | mlog_errno(tmp); |
| 1869 | return; |
| 1870 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1871 | } |
| 1872 | |
Mark Fasheh | 19b613d | 2007-10-04 14:47:09 -0700 | [diff] [blame] | 1873 | if (osb->slot_num != OCFS2_INVALID_SLOT) |
| 1874 | ocfs2_put_slot(osb); |
| 1875 | |
Joel Becker | 4670c46 | 2008-02-01 14:39:35 -0800 | [diff] [blame] | 1876 | if (osb->cconn) |
Mark Fasheh | 19b613d | 2007-10-04 14:47:09 -0700 | [diff] [blame] | 1877 | ocfs2_super_unlock(osb, 1); |
| 1878 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1879 | ocfs2_release_system_inodes(osb); |
| 1880 | |
Joel Becker | 6953b4c | 2008-01-29 16:59:56 -0800 | [diff] [blame] | 1881 | /* |
Joel Becker | 6953b4c | 2008-01-29 16:59:56 -0800 | [diff] [blame] | 1882 | * If we're dismounting due to mount error, mount.ocfs2 will clean |
| 1883 | * up heartbeat. If we're a local mount, there is no heartbeat. |
| 1884 | * If we failed before we got a uuid_str yet, we can't stop |
| 1885 | * heartbeat. Otherwise, do it. |
| 1886 | */ |
| 1887 | if (!mnt_err && !ocfs2_mount_local(osb) && osb->uuid_str) |
Joel Becker | 286eaa9 | 2008-02-01 15:03:57 -0800 | [diff] [blame] | 1888 | hangup_needed = 1; |
| 1889 | |
| 1890 | if (osb->cconn) |
| 1891 | ocfs2_dlm_shutdown(osb, hangup_needed); |
| 1892 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1893 | ocfs2_blockcheck_stats_debugfs_remove(&osb->osb_ecc_stats); |
Joel Becker | 286eaa9 | 2008-02-01 15:03:57 -0800 | [diff] [blame] | 1894 | debugfs_remove(osb->osb_debug_root); |
| 1895 | |
| 1896 | if (hangup_needed) |
Joel Becker | 6953b4c | 2008-01-29 16:59:56 -0800 | [diff] [blame] | 1897 | ocfs2_cluster_hangup(osb->uuid_str, strlen(osb->uuid_str)); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1898 | |
| 1899 | atomic_set(&osb->vol_state, VOLUME_DISMOUNTED); |
| 1900 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1901 | if (ocfs2_mount_local(osb)) |
| 1902 | snprintf(nodestr, sizeof(nodestr), "local"); |
| 1903 | else |
Joel Becker | 19fdb62 | 2008-01-30 15:38:24 -0800 | [diff] [blame] | 1904 | snprintf(nodestr, sizeof(nodestr), "%u", osb->node_num); |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 1905 | |
| 1906 | printk(KERN_INFO "ocfs2: Unmounting device (%s) on (node %s)\n", |
| 1907 | osb->dev_str, nodestr); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1908 | |
| 1909 | ocfs2_delete_osb(osb); |
| 1910 | kfree(osb); |
| 1911 | sb->s_dev = 0; |
| 1912 | sb->s_fs_info = NULL; |
| 1913 | } |
| 1914 | |
| 1915 | static int ocfs2_setup_osb_uuid(struct ocfs2_super *osb, const unsigned char *uuid, |
| 1916 | unsigned uuid_bytes) |
| 1917 | { |
| 1918 | int i, ret; |
| 1919 | char *ptr; |
| 1920 | |
| 1921 | BUG_ON(uuid_bytes != OCFS2_VOL_UUID_LEN); |
| 1922 | |
Robert P. J. Day | cd86128 | 2006-12-13 00:34:52 -0800 | [diff] [blame] | 1923 | osb->uuid_str = kzalloc(OCFS2_VOL_UUID_LEN * 2 + 1, GFP_KERNEL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1924 | if (osb->uuid_str == NULL) |
| 1925 | return -ENOMEM; |
| 1926 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1927 | for (i = 0, ptr = osb->uuid_str; i < OCFS2_VOL_UUID_LEN; i++) { |
| 1928 | /* print with null */ |
| 1929 | ret = snprintf(ptr, 3, "%02X", uuid[i]); |
| 1930 | if (ret != 2) /* drop super cleans up */ |
| 1931 | return -EINVAL; |
| 1932 | /* then only advance past the last char */ |
| 1933 | ptr += 2; |
| 1934 | } |
| 1935 | |
| 1936 | return 0; |
| 1937 | } |
| 1938 | |
| 1939 | static int ocfs2_initialize_super(struct super_block *sb, |
| 1940 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 1941 | int sector_size, |
| 1942 | struct ocfs2_blockcheck_stats *stats) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1943 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 1944 | int status; |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 1945 | int i, cbits, bbits; |
| 1946 | struct ocfs2_dinode *di = (struct ocfs2_dinode *)bh->b_data; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1947 | struct inode *inode = NULL; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1948 | struct ocfs2_journal *journal; |
| 1949 | __le32 uuid_net_key; |
| 1950 | struct ocfs2_super *osb; |
| 1951 | |
| 1952 | mlog_entry_void(); |
| 1953 | |
Robert P. J. Day | cd86128 | 2006-12-13 00:34:52 -0800 | [diff] [blame] | 1954 | osb = kzalloc(sizeof(struct ocfs2_super), GFP_KERNEL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1955 | if (!osb) { |
| 1956 | status = -ENOMEM; |
| 1957 | mlog_errno(status); |
| 1958 | goto bail; |
| 1959 | } |
| 1960 | |
| 1961 | sb->s_fs_info = osb; |
| 1962 | sb->s_op = &ocfs2_sops; |
| 1963 | sb->s_export_op = &ocfs2_export_ops; |
Jan Kara | 19ece54 | 2008-08-21 20:13:17 +0200 | [diff] [blame] | 1964 | sb->s_qcop = &ocfs2_quotactl_ops; |
| 1965 | sb->dq_op = &ocfs2_quota_operations; |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 1966 | sb->s_xattr = ocfs2_xattr_handlers; |
Mark Fasheh | e0dceaf | 2007-08-09 16:52:30 -0700 | [diff] [blame] | 1967 | sb->s_time_gran = 1; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1968 | sb->s_flags |= MS_NOATIME; |
| 1969 | /* this is needed to support O_LARGEFILE */ |
Mark Fasheh | 5a25403 | 2007-07-20 12:56:16 -0700 | [diff] [blame] | 1970 | cbits = le32_to_cpu(di->id2.i_super.s_clustersize_bits); |
| 1971 | bbits = le32_to_cpu(di->id2.i_super.s_blocksize_bits); |
| 1972 | sb->s_maxbytes = ocfs2_max_file_offset(bbits, cbits); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1973 | |
Mark Fasheh | 9b7895e | 2008-11-12 16:27:44 -0800 | [diff] [blame] | 1974 | osb->osb_dx_mask = (1 << (cbits - bbits)) - 1; |
| 1975 | |
| 1976 | for (i = 0; i < 3; i++) |
| 1977 | osb->osb_dx_seed[i] = le32_to_cpu(di->id2.i_super.s_dx_seed[i]); |
| 1978 | osb->osb_dx_seed[3] = le32_to_cpu(di->id2.i_super.s_uuid_hash); |
| 1979 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1980 | osb->sb = sb; |
| 1981 | /* Save off for ocfs2_rw_direct */ |
| 1982 | osb->s_sectsize_bits = blksize_bits(sector_size); |
Eric Sesterhenn / snakebyte | ebdec83 | 2006-01-27 10:32:52 +0100 | [diff] [blame] | 1983 | BUG_ON(!osb->s_sectsize_bits); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1984 | |
Mark Fasheh | 34d024f | 2007-09-24 15:56:19 -0700 | [diff] [blame] | 1985 | spin_lock_init(&osb->dc_task_lock); |
| 1986 | init_waitqueue_head(&osb->dc_event); |
| 1987 | osb->dc_work_sequence = 0; |
| 1988 | osb->dc_wake_sequence = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1989 | INIT_LIST_HEAD(&osb->blocked_lock_list); |
| 1990 | osb->blocked_lock_count = 0; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1991 | spin_lock_init(&osb->osb_lock); |
Tao Ma | c8b9cf9 | 2009-02-24 17:40:26 -0800 | [diff] [blame] | 1992 | spin_lock_init(&osb->osb_xattr_lock); |
Tao Ma | 4d0ddb2 | 2008-03-05 16:11:46 +0800 | [diff] [blame] | 1993 | ocfs2_init_inode_steal_slot(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 1994 | |
| 1995 | atomic_set(&osb->alloc_stats.moves, 0); |
| 1996 | atomic_set(&osb->alloc_stats.local_data, 0); |
| 1997 | atomic_set(&osb->alloc_stats.bitmap_data, 0); |
| 1998 | atomic_set(&osb->alloc_stats.bg_allocs, 0); |
| 1999 | atomic_set(&osb->alloc_stats.bg_extends, 0); |
| 2000 | |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 2001 | /* Copy the blockcheck stats from the superblock probe */ |
| 2002 | osb->osb_ecc_stats = *stats; |
| 2003 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2004 | ocfs2_init_node_maps(osb); |
| 2005 | |
| 2006 | snprintf(osb->dev_str, sizeof(osb->dev_str), "%u,%u", |
| 2007 | MAJOR(osb->sb->s_dev), MINOR(osb->sb->s_dev)); |
| 2008 | |
Jeff Mahoney | 8b712cd | 2009-07-07 17:22:12 -0400 | [diff] [blame] | 2009 | ocfs2_orphan_scan_init(osb); |
| 2010 | |
Joel Becker | 553abd0 | 2008-02-01 12:03:57 -0800 | [diff] [blame] | 2011 | status = ocfs2_recovery_init(osb); |
| 2012 | if (status) { |
| 2013 | mlog(ML_ERROR, "Unable to initialize recovery state\n"); |
| 2014 | mlog_errno(status); |
| 2015 | goto bail; |
| 2016 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2017 | |
| 2018 | init_waitqueue_head(&osb->checkpoint_event); |
| 2019 | atomic_set(&osb->needs_checkpoint, 0); |
| 2020 | |
Tiger Yang | 7f1a37e | 2006-11-15 15:48:42 +0800 | [diff] [blame] | 2021 | osb->s_atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM; |
| 2022 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2023 | osb->slot_num = OCFS2_INVALID_SLOT; |
| 2024 | |
Tiger Yang | 8154da3 | 2008-08-18 17:11:46 +0800 | [diff] [blame] | 2025 | osb->s_xattr_inline_size = le16_to_cpu( |
| 2026 | di->id2.i_super.s_xattr_inline_size); |
Tiger Yang | fdd7770 | 2008-08-18 17:08:55 +0800 | [diff] [blame] | 2027 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2028 | osb->local_alloc_state = OCFS2_LA_UNUSED; |
| 2029 | osb->local_alloc_bh = NULL; |
Mark Fasheh | 9c7af40 | 2008-07-28 18:02:53 -0700 | [diff] [blame] | 2030 | INIT_DELAYED_WORK(&osb->la_enable_wq, ocfs2_la_enable_worker); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2031 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2032 | init_waitqueue_head(&osb->osb_mount_event); |
| 2033 | |
| 2034 | osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); |
| 2035 | if (!osb->vol_label) { |
| 2036 | mlog(ML_ERROR, "unable to alloc vol label\n"); |
| 2037 | status = -ENOMEM; |
| 2038 | goto bail; |
| 2039 | } |
| 2040 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2041 | osb->max_slots = le16_to_cpu(di->id2.i_super.s_max_slots); |
| 2042 | if (osb->max_slots > OCFS2_MAX_SLOTS || osb->max_slots == 0) { |
| 2043 | mlog(ML_ERROR, "Invalid number of node slots (%u)\n", |
| 2044 | osb->max_slots); |
| 2045 | status = -EINVAL; |
| 2046 | goto bail; |
| 2047 | } |
Sunil Mushran | 781ee3e | 2006-04-27 16:41:31 -0700 | [diff] [blame] | 2048 | mlog(0, "max_slots for this device: %u\n", osb->max_slots); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2049 | |
Sunil Mushran | 539d826 | 2008-07-14 17:31:10 -0700 | [diff] [blame] | 2050 | osb->slot_recovery_generations = |
| 2051 | kcalloc(osb->max_slots, sizeof(*osb->slot_recovery_generations), |
| 2052 | GFP_KERNEL); |
| 2053 | if (!osb->slot_recovery_generations) { |
| 2054 | status = -ENOMEM; |
| 2055 | mlog_errno(status); |
| 2056 | goto bail; |
| 2057 | } |
| 2058 | |
Mark Fasheh | b4df6ed | 2006-02-22 17:35:08 -0800 | [diff] [blame] | 2059 | init_waitqueue_head(&osb->osb_wipe_event); |
| 2060 | osb->osb_orphan_wipes = kcalloc(osb->max_slots, |
| 2061 | sizeof(*osb->osb_orphan_wipes), |
| 2062 | GFP_KERNEL); |
| 2063 | if (!osb->osb_orphan_wipes) { |
| 2064 | status = -ENOMEM; |
| 2065 | mlog_errno(status); |
| 2066 | goto bail; |
| 2067 | } |
| 2068 | |
Tao Ma | 374a263 | 2009-08-24 11:13:37 +0800 | [diff] [blame] | 2069 | osb->osb_rf_lock_tree = RB_ROOT; |
| 2070 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2071 | osb->s_feature_compat = |
| 2072 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_compat); |
| 2073 | osb->s_feature_ro_compat = |
| 2074 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_ro_compat); |
| 2075 | osb->s_feature_incompat = |
| 2076 | le32_to_cpu(OCFS2_RAW_SB(di)->s_feature_incompat); |
| 2077 | |
| 2078 | if ((i = OCFS2_HAS_INCOMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_INCOMPAT_SUPP))) { |
| 2079 | mlog(ML_ERROR, "couldn't mount because of unsupported " |
| 2080 | "optional features (%x).\n", i); |
| 2081 | status = -EINVAL; |
| 2082 | goto bail; |
| 2083 | } |
| 2084 | if (!(osb->sb->s_flags & MS_RDONLY) && |
| 2085 | (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) { |
| 2086 | mlog(ML_ERROR, "couldn't mount RDWR because of " |
| 2087 | "unsupported optional features (%x).\n", i); |
| 2088 | status = -EINVAL; |
| 2089 | goto bail; |
| 2090 | } |
| 2091 | |
Joel Becker | b61817e | 2008-02-01 15:08:23 -0800 | [diff] [blame] | 2092 | if (ocfs2_userspace_stack(osb)) { |
| 2093 | memcpy(osb->osb_cluster_stack, |
| 2094 | OCFS2_RAW_SB(di)->s_cluster_info.ci_stack, |
| 2095 | OCFS2_STACK_LABEL_LEN); |
| 2096 | osb->osb_cluster_stack[OCFS2_STACK_LABEL_LEN] = '\0'; |
| 2097 | if (strlen(osb->osb_cluster_stack) != OCFS2_STACK_LABEL_LEN) { |
| 2098 | mlog(ML_ERROR, |
| 2099 | "couldn't mount because of an invalid " |
| 2100 | "cluster stack label (%s) \n", |
| 2101 | osb->osb_cluster_stack); |
| 2102 | status = -EINVAL; |
| 2103 | goto bail; |
| 2104 | } |
| 2105 | } else { |
| 2106 | /* The empty string is identical with classic tools that |
| 2107 | * don't know about s_cluster_info. */ |
| 2108 | osb->osb_cluster_stack[0] = '\0'; |
| 2109 | } |
| 2110 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2111 | get_random_bytes(&osb->s_next_generation, sizeof(u32)); |
| 2112 | |
| 2113 | /* FIXME |
| 2114 | * This should be done in ocfs2_journal_init(), but unknown |
| 2115 | * ordering issues will cause the filesystem to crash. |
| 2116 | * If anyone wants to figure out what part of the code |
| 2117 | * refers to osb->journal before ocfs2_journal_init() is run, |
| 2118 | * be my guest. |
| 2119 | */ |
| 2120 | /* initialize our journal structure */ |
| 2121 | |
Robert P. J. Day | cd86128 | 2006-12-13 00:34:52 -0800 | [diff] [blame] | 2122 | journal = kzalloc(sizeof(struct ocfs2_journal), GFP_KERNEL); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2123 | if (!journal) { |
| 2124 | mlog(ML_ERROR, "unable to alloc journal\n"); |
| 2125 | status = -ENOMEM; |
| 2126 | goto bail; |
| 2127 | } |
| 2128 | osb->journal = journal; |
| 2129 | journal->j_osb = osb; |
| 2130 | |
| 2131 | atomic_set(&journal->j_num_trans, 0); |
| 2132 | init_rwsem(&journal->j_trans_barrier); |
| 2133 | init_waitqueue_head(&journal->j_checkpointed); |
| 2134 | spin_lock_init(&journal->j_lock); |
| 2135 | journal->j_trans_id = (unsigned long) 1; |
| 2136 | INIT_LIST_HEAD(&journal->j_la_cleanups); |
David Howells | c402895 | 2006-11-22 14:57:56 +0000 | [diff] [blame] | 2137 | INIT_WORK(&journal->j_recovery_work, ocfs2_complete_recovery); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2138 | journal->j_state = OCFS2_JOURNAL_FREE; |
| 2139 | |
Jan Kara | ea455f8 | 2009-01-12 23:20:31 +0100 | [diff] [blame] | 2140 | INIT_WORK(&osb->dentry_lock_work, ocfs2_drop_dl_inodes); |
| 2141 | osb->dentry_lock_list = NULL; |
| 2142 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2143 | /* get some pseudo constants for clustersize bits */ |
| 2144 | osb->s_clustersize_bits = |
| 2145 | le32_to_cpu(di->id2.i_super.s_clustersize_bits); |
| 2146 | osb->s_clustersize = 1 << osb->s_clustersize_bits; |
| 2147 | mlog(0, "clusterbits=%d\n", osb->s_clustersize_bits); |
| 2148 | |
| 2149 | if (osb->s_clustersize < OCFS2_MIN_CLUSTERSIZE || |
| 2150 | osb->s_clustersize > OCFS2_MAX_CLUSTERSIZE) { |
| 2151 | mlog(ML_ERROR, "Volume has invalid cluster size (%d)\n", |
| 2152 | osb->s_clustersize); |
| 2153 | status = -EINVAL; |
| 2154 | goto bail; |
| 2155 | } |
| 2156 | |
| 2157 | if (ocfs2_clusters_to_blocks(osb->sb, le32_to_cpu(di->i_clusters) - 1) |
| 2158 | > (u32)~0UL) { |
| 2159 | mlog(ML_ERROR, "Volume might try to write to blocks beyond " |
| 2160 | "what jbd can address in 32 bits.\n"); |
| 2161 | status = -EINVAL; |
| 2162 | goto bail; |
| 2163 | } |
| 2164 | |
| 2165 | if (ocfs2_setup_osb_uuid(osb, di->id2.i_super.s_uuid, |
| 2166 | sizeof(di->id2.i_super.s_uuid))) { |
| 2167 | mlog(ML_ERROR, "Out of memory trying to setup our uuid.\n"); |
| 2168 | status = -ENOMEM; |
| 2169 | goto bail; |
| 2170 | } |
| 2171 | |
Mark Fasheh | 7842704 | 2006-05-04 12:03:26 -0700 | [diff] [blame] | 2172 | 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] | 2173 | |
| 2174 | strncpy(osb->vol_label, di->id2.i_super.s_label, 63); |
| 2175 | osb->vol_label[63] = '\0'; |
| 2176 | osb->root_blkno = le64_to_cpu(di->id2.i_super.s_root_blkno); |
| 2177 | osb->system_dir_blkno = le64_to_cpu(di->id2.i_super.s_system_dir_blkno); |
| 2178 | osb->first_cluster_group_blkno = |
| 2179 | le64_to_cpu(di->id2.i_super.s_first_cluster_group); |
| 2180 | osb->fs_generation = le32_to_cpu(di->i_fs_generation); |
Tiger Yang | cf1d6c7 | 2008-08-18 17:11:00 +0800 | [diff] [blame] | 2181 | osb->uuid_hash = le32_to_cpu(di->id2.i_super.s_uuid_hash); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2182 | mlog(0, "vol_label: %s\n", osb->vol_label); |
| 2183 | mlog(0, "uuid: %s\n", osb->uuid_str); |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 2184 | mlog(0, "root_blkno=%llu, system_dir_blkno=%llu\n", |
| 2185 | (unsigned long long)osb->root_blkno, |
| 2186 | (unsigned long long)osb->system_dir_blkno); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2187 | |
| 2188 | osb->osb_dlm_debug = ocfs2_new_dlm_debug(); |
| 2189 | if (!osb->osb_dlm_debug) { |
| 2190 | status = -ENOMEM; |
| 2191 | mlog_errno(status); |
| 2192 | goto bail; |
| 2193 | } |
| 2194 | |
| 2195 | atomic_set(&osb->vol_state, VOLUME_INIT); |
| 2196 | |
| 2197 | /* load root, system_dir, and all global system inodes */ |
| 2198 | status = ocfs2_init_global_system_inodes(osb); |
| 2199 | if (status < 0) { |
| 2200 | mlog_errno(status); |
| 2201 | goto bail; |
| 2202 | } |
| 2203 | |
| 2204 | /* |
| 2205 | * global bitmap |
| 2206 | */ |
| 2207 | inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, |
| 2208 | OCFS2_INVALID_SLOT); |
| 2209 | if (!inode) { |
| 2210 | status = -EINVAL; |
| 2211 | mlog_errno(status); |
| 2212 | goto bail; |
| 2213 | } |
| 2214 | |
| 2215 | osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2216 | iput(inode); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2217 | |
Tao Ma | e9d578a | 2007-12-18 15:46:10 +0800 | [diff] [blame] | 2218 | osb->bitmap_cpg = ocfs2_group_bitmap_size(sb) * 8; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2219 | |
| 2220 | status = ocfs2_init_slot_info(osb); |
| 2221 | if (status < 0) { |
| 2222 | mlog_errno(status); |
| 2223 | goto bail; |
| 2224 | } |
| 2225 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2226 | bail: |
| 2227 | mlog_exit(status); |
| 2228 | return status; |
| 2229 | } |
| 2230 | |
| 2231 | /* |
| 2232 | * will return: -EAGAIN if it is ok to keep searching for superblocks |
| 2233 | * -EINVAL if there is a bad superblock |
| 2234 | * 0 on success |
| 2235 | */ |
| 2236 | static int ocfs2_verify_volume(struct ocfs2_dinode *di, |
| 2237 | struct buffer_head *bh, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 2238 | u32 blksz, |
| 2239 | struct ocfs2_blockcheck_stats *stats) |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2240 | { |
| 2241 | int status = -EAGAIN; |
| 2242 | |
| 2243 | mlog_entry_void(); |
| 2244 | |
| 2245 | if (memcmp(di->i_signature, OCFS2_SUPER_BLOCK_SIGNATURE, |
| 2246 | strlen(OCFS2_SUPER_BLOCK_SIGNATURE)) == 0) { |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 2247 | /* We have to do a raw check of the feature here */ |
| 2248 | if (le32_to_cpu(di->id2.i_super.s_feature_incompat) & |
| 2249 | OCFS2_FEATURE_INCOMPAT_META_ECC) { |
| 2250 | status = ocfs2_block_check_validate(bh->b_data, |
| 2251 | bh->b_size, |
Joel Becker | 73be192 | 2009-01-06 14:57:08 -0800 | [diff] [blame] | 2252 | &di->i_check, |
| 2253 | stats); |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 2254 | if (status) |
| 2255 | goto out; |
| 2256 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2257 | status = -EINVAL; |
| 2258 | if ((1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits)) != blksz) { |
| 2259 | mlog(ML_ERROR, "found superblock with incorrect block " |
| 2260 | "size: found %u, should be %u\n", |
| 2261 | 1 << le32_to_cpu(di->id2.i_super.s_blocksize_bits), |
| 2262 | blksz); |
| 2263 | } else if (le16_to_cpu(di->id2.i_super.s_major_rev_level) != |
| 2264 | OCFS2_MAJOR_REV_LEVEL || |
| 2265 | le16_to_cpu(di->id2.i_super.s_minor_rev_level) != |
| 2266 | OCFS2_MINOR_REV_LEVEL) { |
| 2267 | mlog(ML_ERROR, "found superblock with bad version: " |
| 2268 | "found %u.%u, should be %u.%u\n", |
| 2269 | le16_to_cpu(di->id2.i_super.s_major_rev_level), |
| 2270 | le16_to_cpu(di->id2.i_super.s_minor_rev_level), |
| 2271 | OCFS2_MAJOR_REV_LEVEL, |
| 2272 | OCFS2_MINOR_REV_LEVEL); |
| 2273 | } else if (bh->b_blocknr != le64_to_cpu(di->i_blkno)) { |
| 2274 | mlog(ML_ERROR, "bad block number on superblock: " |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 2275 | "found %llu, should be %llu\n", |
Mark Fasheh | 1ca1a11 | 2007-04-27 16:01:25 -0700 | [diff] [blame] | 2276 | (unsigned long long)le64_to_cpu(di->i_blkno), |
Mark Fasheh | b0697053 | 2006-03-03 10:24:33 -0800 | [diff] [blame] | 2277 | (unsigned long long)bh->b_blocknr); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2278 | } else if (le32_to_cpu(di->id2.i_super.s_clustersize_bits) < 12 || |
| 2279 | le32_to_cpu(di->id2.i_super.s_clustersize_bits) > 20) { |
| 2280 | mlog(ML_ERROR, "bad cluster size found: %u\n", |
| 2281 | 1 << le32_to_cpu(di->id2.i_super.s_clustersize_bits)); |
| 2282 | } else if (!le64_to_cpu(di->id2.i_super.s_root_blkno)) { |
| 2283 | mlog(ML_ERROR, "bad root_blkno: 0\n"); |
| 2284 | } else if (!le64_to_cpu(di->id2.i_super.s_system_dir_blkno)) { |
| 2285 | mlog(ML_ERROR, "bad system_dir_blkno: 0\n"); |
| 2286 | } else if (le16_to_cpu(di->id2.i_super.s_max_slots) > OCFS2_MAX_SLOTS) { |
| 2287 | mlog(ML_ERROR, |
| 2288 | "Superblock slots found greater than file system " |
| 2289 | "maximum: found %u, max %u\n", |
| 2290 | le16_to_cpu(di->id2.i_super.s_max_slots), |
| 2291 | OCFS2_MAX_SLOTS); |
| 2292 | } else { |
| 2293 | /* found it! */ |
| 2294 | status = 0; |
| 2295 | } |
| 2296 | } |
| 2297 | |
Joel Becker | d030cc9 | 2008-12-11 15:04:14 -0800 | [diff] [blame] | 2298 | out: |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2299 | mlog_exit(status); |
| 2300 | return status; |
| 2301 | } |
| 2302 | |
| 2303 | static int ocfs2_check_volume(struct ocfs2_super *osb) |
| 2304 | { |
Denis Cheng | bddb8eb3 | 2007-09-27 02:10:04 +0800 | [diff] [blame] | 2305 | int status; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2306 | int dirty; |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 2307 | int local; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2308 | struct ocfs2_dinode *local_alloc = NULL; /* only used if we |
| 2309 | * recover |
| 2310 | * ourselves. */ |
| 2311 | |
| 2312 | mlog_entry_void(); |
| 2313 | |
| 2314 | /* Init our journal object. */ |
| 2315 | status = ocfs2_journal_init(osb->journal, &dirty); |
| 2316 | if (status < 0) { |
| 2317 | mlog(ML_ERROR, "Could not initialize journal!\n"); |
| 2318 | goto finally; |
| 2319 | } |
| 2320 | |
| 2321 | /* If the journal was unmounted cleanly then we don't want to |
| 2322 | * recover anything. Otherwise, journal_load will do that |
| 2323 | * dirty work for us :) */ |
| 2324 | if (!dirty) { |
| 2325 | status = ocfs2_journal_wipe(osb->journal, 0); |
| 2326 | if (status < 0) { |
| 2327 | mlog_errno(status); |
| 2328 | goto finally; |
| 2329 | } |
| 2330 | } else { |
| 2331 | mlog(ML_NOTICE, "File system was not unmounted cleanly, " |
| 2332 | "recovering volume.\n"); |
| 2333 | } |
| 2334 | |
Sunil Mushran | c271c5c | 2006-12-05 17:56:35 -0800 | [diff] [blame] | 2335 | local = ocfs2_mount_local(osb); |
| 2336 | |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2337 | /* will play back anything left in the journal. */ |
Sunil Mushran | 539d826 | 2008-07-14 17:31:10 -0700 | [diff] [blame] | 2338 | status = ocfs2_journal_load(osb->journal, local, dirty); |
Wengang Wang | 01af482 | 2008-06-10 14:24:48 +0800 | [diff] [blame] | 2339 | if (status < 0) { |
| 2340 | mlog(ML_ERROR, "ocfs2 journal load failed! %d\n", status); |
| 2341 | goto finally; |
| 2342 | } |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2343 | |
| 2344 | if (dirty) { |
| 2345 | /* recover my local alloc if we didn't unmount cleanly. */ |
| 2346 | status = ocfs2_begin_local_alloc_recovery(osb, |
| 2347 | osb->slot_num, |
| 2348 | &local_alloc); |
| 2349 | if (status < 0) { |
| 2350 | mlog_errno(status); |
| 2351 | goto finally; |
| 2352 | } |
| 2353 | /* we complete the recovery process after we've marked |
| 2354 | * ourselves as mounted. */ |
| 2355 | } |
| 2356 | |
| 2357 | mlog(0, "Journal loaded.\n"); |
| 2358 | |
| 2359 | status = ocfs2_load_local_alloc(osb); |
| 2360 | if (status < 0) { |
| 2361 | mlog_errno(status); |
| 2362 | goto finally; |
| 2363 | } |
| 2364 | |
| 2365 | if (dirty) { |
| 2366 | /* Recovery will be completed after we've mounted the |
| 2367 | * rest of the volume. */ |
| 2368 | osb->dirty = 1; |
| 2369 | osb->local_alloc_copy = local_alloc; |
| 2370 | local_alloc = NULL; |
| 2371 | } |
| 2372 | |
| 2373 | /* go through each journal, trylock it and if you get the |
| 2374 | * lock, and it's marked as dirty, set the bit in the recover |
| 2375 | * map and launch a recovery thread for it. */ |
| 2376 | status = ocfs2_mark_dead_nodes(osb); |
Srinivas Eeda | 9140db0 | 2009-03-06 14:21:46 -0800 | [diff] [blame] | 2377 | if (status < 0) { |
| 2378 | mlog_errno(status); |
| 2379 | goto finally; |
| 2380 | } |
| 2381 | |
| 2382 | status = ocfs2_compute_replay_slots(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2383 | if (status < 0) |
| 2384 | mlog_errno(status); |
| 2385 | |
| 2386 | finally: |
| 2387 | if (local_alloc) |
| 2388 | kfree(local_alloc); |
| 2389 | |
| 2390 | mlog_exit(status); |
| 2391 | return status; |
| 2392 | } |
| 2393 | |
| 2394 | /* |
| 2395 | * The routine gets called from dismount or close whenever a dismount on |
| 2396 | * volume is requested and the osb open count becomes 1. |
| 2397 | * It will remove the osb from the global list and also free up all the |
| 2398 | * initialized resources and fileobject. |
| 2399 | */ |
| 2400 | static void ocfs2_delete_osb(struct ocfs2_super *osb) |
| 2401 | { |
| 2402 | mlog_entry_void(); |
| 2403 | |
| 2404 | /* This function assumes that the caller has the main osb resource */ |
| 2405 | |
Mark Fasheh | 8e8a460 | 2008-02-01 11:59:09 -0800 | [diff] [blame] | 2406 | ocfs2_free_slot_info(osb); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2407 | |
Mark Fasheh | b4df6ed | 2006-02-22 17:35:08 -0800 | [diff] [blame] | 2408 | kfree(osb->osb_orphan_wipes); |
Sunil Mushran | 539d826 | 2008-07-14 17:31:10 -0700 | [diff] [blame] | 2409 | kfree(osb->slot_recovery_generations); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2410 | /* FIXME |
| 2411 | * This belongs in journal shutdown, but because we have to |
| 2412 | * allocate osb->journal at the start of ocfs2_initalize_osb(), |
| 2413 | * we free it here. |
| 2414 | */ |
| 2415 | kfree(osb->journal); |
| 2416 | if (osb->local_alloc_copy) |
| 2417 | kfree(osb->local_alloc_copy); |
| 2418 | kfree(osb->uuid_str); |
| 2419 | ocfs2_put_dlm_debug(osb->osb_dlm_debug); |
| 2420 | memset(osb, 0, sizeof(struct ocfs2_super)); |
| 2421 | |
| 2422 | mlog_exit_void(); |
| 2423 | } |
| 2424 | |
| 2425 | /* Put OCFS2 into a readonly state, or (if the user specifies it), |
| 2426 | * panic(). We do not support continue-on-error operation. */ |
| 2427 | static void ocfs2_handle_error(struct super_block *sb) |
| 2428 | { |
| 2429 | struct ocfs2_super *osb = OCFS2_SB(sb); |
| 2430 | |
| 2431 | if (osb->s_mount_opt & OCFS2_MOUNT_ERRORS_PANIC) |
| 2432 | panic("OCFS2: (device %s): panic forced after error\n", |
| 2433 | sb->s_id); |
| 2434 | |
| 2435 | ocfs2_set_osb_flag(osb, OCFS2_OSB_ERROR_FS); |
| 2436 | |
| 2437 | if (sb->s_flags & MS_RDONLY && |
| 2438 | (ocfs2_is_soft_readonly(osb) || |
| 2439 | ocfs2_is_hard_readonly(osb))) |
| 2440 | return; |
| 2441 | |
| 2442 | printk(KERN_CRIT "File system is now read-only due to the potential " |
| 2443 | "of on-disk corruption. Please run fsck.ocfs2 once the file " |
| 2444 | "system is unmounted.\n"); |
| 2445 | sb->s_flags |= MS_RDONLY; |
| 2446 | ocfs2_set_ro_flag(osb, 0); |
| 2447 | } |
| 2448 | |
| 2449 | static char error_buf[1024]; |
| 2450 | |
| 2451 | void __ocfs2_error(struct super_block *sb, |
| 2452 | const char *function, |
| 2453 | const char *fmt, ...) |
| 2454 | { |
| 2455 | va_list args; |
| 2456 | |
| 2457 | va_start(args, fmt); |
Alexey Dobriyan | 4a6e617 | 2006-12-06 20:37:04 -0800 | [diff] [blame] | 2458 | vsnprintf(error_buf, sizeof(error_buf), fmt, args); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2459 | va_end(args); |
| 2460 | |
| 2461 | /* Not using mlog here because we want to show the actual |
| 2462 | * function the error came from. */ |
| 2463 | printk(KERN_CRIT "OCFS2: ERROR (device %s): %s: %s\n", |
| 2464 | sb->s_id, function, error_buf); |
| 2465 | |
| 2466 | ocfs2_handle_error(sb); |
| 2467 | } |
| 2468 | |
| 2469 | /* Handle critical errors. This is intentionally more drastic than |
| 2470 | * ocfs2_handle_error, so we only use for things like journal errors, |
| 2471 | * etc. */ |
| 2472 | void __ocfs2_abort(struct super_block* sb, |
| 2473 | const char *function, |
| 2474 | const char *fmt, ...) |
| 2475 | { |
| 2476 | va_list args; |
| 2477 | |
| 2478 | va_start(args, fmt); |
Alexey Dobriyan | 4a6e617 | 2006-12-06 20:37:04 -0800 | [diff] [blame] | 2479 | vsnprintf(error_buf, sizeof(error_buf), fmt, args); |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2480 | va_end(args); |
| 2481 | |
| 2482 | printk(KERN_CRIT "OCFS2: abort (device %s): %s: %s\n", |
| 2483 | sb->s_id, function, error_buf); |
| 2484 | |
| 2485 | /* We don't have the cluster support yet to go straight to |
| 2486 | * hard readonly in here. Until then, we want to keep |
| 2487 | * ocfs2_abort() so that we can at least mark critical |
| 2488 | * errors. |
| 2489 | * |
| 2490 | * TODO: This should abort the journal and alert other nodes |
| 2491 | * that our slot needs recovery. */ |
| 2492 | |
| 2493 | /* Force a panic(). This stinks, but it's better than letting |
| 2494 | * things continue without having a proper hard readonly |
| 2495 | * here. */ |
Sunil Mushran | a2f2ddb | 2009-08-19 15:16:01 -0700 | [diff] [blame] | 2496 | if (!ocfs2_mount_local(OCFS2_SB(sb))) |
| 2497 | OCFS2_SB(sb)->s_mount_opt |= OCFS2_MOUNT_ERRORS_PANIC; |
Mark Fasheh | ccd979b | 2005-12-15 14:31:24 -0800 | [diff] [blame] | 2498 | ocfs2_handle_error(sb); |
| 2499 | } |
| 2500 | |
| 2501 | module_init(ocfs2_init); |
| 2502 | module_exit(ocfs2_exit); |