David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
Steven Whitehouse | 3a8a9a1 | 2006-05-18 15:09:15 -0400 | [diff] [blame] | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 4 | * |
| 5 | * This copyrighted material is made available to anyone wishing to use, |
| 6 | * modify, copy, or redistribute it subject to the terms and conditions |
Steven Whitehouse | e9fc2aa | 2006-09-01 11:05:15 -0400 | [diff] [blame] | 7 | * of the GNU General Public License version 2. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | #include <linux/sched.h> |
| 11 | #include <linux/slab.h> |
| 12 | #include <linux/spinlock.h> |
| 13 | #include <linux/completion.h> |
| 14 | #include <linux/buffer_head.h> |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 15 | #include <linux/blkdev.h> |
| 16 | #include <linux/kthread.h> |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 17 | #include <linux/namei.h> |
| 18 | #include <linux/mount.h> |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 19 | #include <linux/gfs2_ondisk.h> |
Fabio Massimo Di Nitto | 7d30859 | 2006-09-19 07:56:29 +0200 | [diff] [blame] | 20 | #include <linux/lm_interface.h> |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 21 | |
| 22 | #include "gfs2.h" |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 23 | #include "incore.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 24 | #include "daemon.h" |
| 25 | #include "glock.h" |
| 26 | #include "glops.h" |
| 27 | #include "inode.h" |
| 28 | #include "lm.h" |
| 29 | #include "mount.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 30 | #include "ops_fstype.h" |
Denis Cheng | ca5a939 | 2007-07-31 18:31:12 +0800 | [diff] [blame] | 31 | #include "ops_dentry.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 32 | #include "ops_super.h" |
| 33 | #include "recovery.h" |
| 34 | #include "rgrp.h" |
| 35 | #include "super.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 36 | #include "sys.h" |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 37 | #include "util.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 38 | |
| 39 | #define DO 0 |
| 40 | #define UNDO 1 |
| 41 | |
| 42 | static struct gfs2_sbd *init_sbd(struct super_block *sb) |
| 43 | { |
| 44 | struct gfs2_sbd *sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 45 | |
Steven Whitehouse | 85d1da6 | 2006-09-07 14:40:21 -0400 | [diff] [blame] | 46 | sdp = kzalloc(sizeof(struct gfs2_sbd), GFP_KERNEL); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 47 | if (!sdp) |
| 48 | return NULL; |
| 49 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 50 | sb->s_fs_info = sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 51 | sdp->sd_vfs = sb; |
| 52 | |
| 53 | gfs2_tune_init(&sdp->sd_tune); |
| 54 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 55 | INIT_LIST_HEAD(&sdp->sd_reclaim_list); |
| 56 | spin_lock_init(&sdp->sd_reclaim_lock); |
| 57 | init_waitqueue_head(&sdp->sd_reclaim_wq); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 58 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 59 | mutex_init(&sdp->sd_inum_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 60 | spin_lock_init(&sdp->sd_statfs_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 61 | mutex_init(&sdp->sd_statfs_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 62 | |
| 63 | spin_lock_init(&sdp->sd_rindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 64 | mutex_init(&sdp->sd_rindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 65 | INIT_LIST_HEAD(&sdp->sd_rindex_list); |
| 66 | INIT_LIST_HEAD(&sdp->sd_rindex_mru_list); |
| 67 | INIT_LIST_HEAD(&sdp->sd_rindex_recent_list); |
| 68 | |
| 69 | INIT_LIST_HEAD(&sdp->sd_jindex_list); |
| 70 | spin_lock_init(&sdp->sd_jindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 71 | mutex_init(&sdp->sd_jindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 72 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 73 | INIT_LIST_HEAD(&sdp->sd_quota_list); |
| 74 | spin_lock_init(&sdp->sd_quota_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 75 | mutex_init(&sdp->sd_quota_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 76 | |
| 77 | spin_lock_init(&sdp->sd_log_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 78 | |
| 79 | INIT_LIST_HEAD(&sdp->sd_log_le_gl); |
| 80 | INIT_LIST_HEAD(&sdp->sd_log_le_buf); |
| 81 | INIT_LIST_HEAD(&sdp->sd_log_le_revoke); |
| 82 | INIT_LIST_HEAD(&sdp->sd_log_le_rg); |
| 83 | INIT_LIST_HEAD(&sdp->sd_log_le_databuf); |
| 84 | |
Steven Whitehouse | 71b86f5 | 2006-03-28 14:14:04 -0500 | [diff] [blame] | 85 | mutex_init(&sdp->sd_log_reserve_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 86 | INIT_LIST_HEAD(&sdp->sd_ail1_list); |
| 87 | INIT_LIST_HEAD(&sdp->sd_ail2_list); |
| 88 | |
Steven Whitehouse | 484adff | 2006-03-29 09:12:12 -0500 | [diff] [blame] | 89 | init_rwsem(&sdp->sd_log_flush_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 90 | INIT_LIST_HEAD(&sdp->sd_log_flush_list); |
| 91 | |
| 92 | INIT_LIST_HEAD(&sdp->sd_revoke_list); |
| 93 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 94 | mutex_init(&sdp->sd_freeze_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 95 | |
| 96 | return sdp; |
| 97 | } |
| 98 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 99 | static void init_vfs(struct super_block *sb, unsigned noatime) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 100 | { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 101 | struct gfs2_sbd *sdp = sb->s_fs_info; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 102 | |
| 103 | sb->s_magic = GFS2_MAGIC; |
| 104 | sb->s_op = &gfs2_super_ops; |
| 105 | sb->s_export_op = &gfs2_export_ops; |
Steven Whitehouse | 4bd91ba | 2007-06-05 09:39:18 +0100 | [diff] [blame] | 106 | sb->s_time_gran = 1; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 107 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
| 108 | |
| 109 | if (sb->s_flags & (MS_NOATIME | MS_NODIRATIME)) |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 110 | set_bit(noatime, &sdp->sd_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 111 | |
| 112 | /* Don't let the VFS update atimes. GFS2 handles this itself. */ |
| 113 | sb->s_flags |= MS_NOATIME | MS_NODIRATIME; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 114 | } |
| 115 | |
| 116 | static int init_names(struct gfs2_sbd *sdp, int silent) |
| 117 | { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 118 | char *proto, *table; |
| 119 | int error = 0; |
| 120 | |
| 121 | proto = sdp->sd_args.ar_lockproto; |
| 122 | table = sdp->sd_args.ar_locktable; |
| 123 | |
| 124 | /* Try to autodetect */ |
| 125 | |
| 126 | if (!proto[0] || !table[0]) { |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 127 | error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); |
| 128 | if (error) |
| 129 | return error; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 130 | |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame] | 131 | error = gfs2_check_sb(sdp, &sdp->sd_sb, silent); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 132 | if (error) |
| 133 | goto out; |
| 134 | |
| 135 | if (!proto[0]) |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame] | 136 | proto = sdp->sd_sb.sb_lockproto; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 137 | if (!table[0]) |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame] | 138 | table = sdp->sd_sb.sb_locktable; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | if (!table[0]) |
| 142 | table = sdp->sd_vfs->s_id; |
| 143 | |
| 144 | snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto); |
| 145 | snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table); |
| 146 | |
Denis Cheng | 5d35e31 | 2007-08-13 11:01:58 +0800 | [diff] [blame^] | 147 | table = sdp->sd_table_name; |
| 148 | while ((table = strchr(table, '/'))) |
Robert Peterson | b35997d | 2007-06-07 09:10:01 -0500 | [diff] [blame] | 149 | *table = '_'; |
| 150 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 151 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 152 | return error; |
| 153 | } |
| 154 | |
| 155 | static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, |
| 156 | int undo) |
| 157 | { |
| 158 | struct task_struct *p; |
| 159 | int error = 0; |
| 160 | |
| 161 | if (undo) |
| 162 | goto fail_trans; |
| 163 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 164 | for (sdp->sd_glockd_num = 0; |
| 165 | sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd; |
| 166 | sdp->sd_glockd_num++) { |
| 167 | p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd"); |
| 168 | error = IS_ERR(p); |
| 169 | if (error) { |
| 170 | fs_err(sdp, "can't start glockd thread: %d\n", error); |
| 171 | goto fail; |
| 172 | } |
| 173 | sdp->sd_glockd_process[sdp->sd_glockd_num] = p; |
| 174 | } |
| 175 | |
| 176 | error = gfs2_glock_nq_num(sdp, |
| 177 | GFS2_MOUNT_LOCK, &gfs2_nondisk_glops, |
| 178 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE, |
| 179 | mount_gh); |
| 180 | if (error) { |
| 181 | fs_err(sdp, "can't acquire mount glock: %d\n", error); |
| 182 | goto fail; |
| 183 | } |
| 184 | |
| 185 | error = gfs2_glock_nq_num(sdp, |
| 186 | GFS2_LIVE_LOCK, &gfs2_nondisk_glops, |
| 187 | LM_ST_SHARED, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 188 | LM_FLAG_NOEXP | GL_EXACT, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 189 | &sdp->sd_live_gh); |
| 190 | if (error) { |
| 191 | fs_err(sdp, "can't acquire live glock: %d\n", error); |
| 192 | goto fail_mount; |
| 193 | } |
| 194 | |
| 195 | error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops, |
| 196 | CREATE, &sdp->sd_rename_gl); |
| 197 | if (error) { |
| 198 | fs_err(sdp, "can't create rename glock: %d\n", error); |
| 199 | goto fail_live; |
| 200 | } |
| 201 | |
| 202 | error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops, |
| 203 | CREATE, &sdp->sd_trans_gl); |
| 204 | if (error) { |
| 205 | fs_err(sdp, "can't create transaction glock: %d\n", error); |
| 206 | goto fail_rename; |
| 207 | } |
| 208 | set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags); |
| 209 | |
| 210 | return 0; |
| 211 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 212 | fail_trans: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 213 | gfs2_glock_put(sdp->sd_trans_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 214 | fail_rename: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 215 | gfs2_glock_put(sdp->sd_rename_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 216 | fail_live: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 217 | gfs2_glock_dq_uninit(&sdp->sd_live_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 218 | fail_mount: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 219 | gfs2_glock_dq_uninit(mount_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 220 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 221 | while (sdp->sd_glockd_num--) |
| 222 | kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]); |
| 223 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 224 | return error; |
| 225 | } |
| 226 | |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 227 | static inline struct inode *gfs2_lookup_root(struct super_block *sb, |
| 228 | u64 no_addr) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 229 | { |
Wendy Cheng | bb9bcf0 | 2007-06-27 17:07:08 -0400 | [diff] [blame] | 230 | return gfs2_inode_lookup(sb, DT_DIR, no_addr, 0); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 231 | } |
| 232 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 233 | static int init_sb(struct gfs2_sbd *sdp, int silent, int undo) |
| 234 | { |
| 235 | struct super_block *sb = sdp->sd_vfs; |
| 236 | struct gfs2_holder sb_gh; |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 237 | u64 no_addr; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 238 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 239 | int error = 0; |
| 240 | |
| 241 | if (undo) { |
Russell Cattelan | 8872187 | 2006-08-10 11:08:40 -0500 | [diff] [blame] | 242 | if (sb->s_root) { |
| 243 | dput(sb->s_root); |
| 244 | sb->s_root = NULL; |
| 245 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 246 | return 0; |
| 247 | } |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 248 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 249 | error = gfs2_glock_nq_num(sdp, GFS2_SB_LOCK, &gfs2_meta_glops, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 250 | LM_ST_SHARED, 0, &sb_gh); |
| 251 | if (error) { |
| 252 | fs_err(sdp, "can't acquire superblock glock: %d\n", error); |
| 253 | return error; |
| 254 | } |
| 255 | |
| 256 | error = gfs2_read_sb(sdp, sb_gh.gh_gl, silent); |
| 257 | if (error) { |
| 258 | fs_err(sdp, "can't read superblock: %d\n", error); |
| 259 | goto out; |
| 260 | } |
| 261 | |
| 262 | /* Set up the buffer cache and SB for real */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 263 | if (sdp->sd_sb.sb_bsize < bdev_hardsect_size(sb->s_bdev)) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 264 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 265 | fs_err(sdp, "FS block size (%u) is too small for device " |
| 266 | "block size (%u)\n", |
| 267 | sdp->sd_sb.sb_bsize, bdev_hardsect_size(sb->s_bdev)); |
| 268 | goto out; |
| 269 | } |
| 270 | if (sdp->sd_sb.sb_bsize > PAGE_SIZE) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 271 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 272 | fs_err(sdp, "FS block size (%u) is too big for machine " |
| 273 | "page size (%u)\n", |
| 274 | sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE); |
| 275 | goto out; |
| 276 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 277 | sb_set_blocksize(sb, sdp->sd_sb.sb_bsize); |
| 278 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 279 | /* Get the root inode */ |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 280 | no_addr = sdp->sd_sb.sb_root_dir.no_addr; |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 281 | if (sb->s_type == &gfs2meta_fs_type) |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 282 | no_addr = sdp->sd_sb.sb_master_dir.no_addr; |
| 283 | inode = gfs2_lookup_root(sb, no_addr); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 284 | if (IS_ERR(inode)) { |
| 285 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 286 | fs_err(sdp, "can't read in root inode: %d\n", error); |
| 287 | goto out; |
| 288 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 289 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 290 | sb->s_root = d_alloc_root(inode); |
| 291 | if (!sb->s_root) { |
| 292 | fs_err(sdp, "can't get root dentry\n"); |
| 293 | error = -ENOMEM; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 294 | iput(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 295 | } |
Robert S Peterson | 5bb76af | 2006-05-05 16:29:50 -0400 | [diff] [blame] | 296 | sb->s_root->d_op = &gfs2_dops; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 297 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 298 | gfs2_glock_dq_uninit(&sb_gh); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 299 | return error; |
| 300 | } |
| 301 | |
| 302 | static int init_journal(struct gfs2_sbd *sdp, int undo) |
| 303 | { |
| 304 | struct gfs2_holder ji_gh; |
| 305 | struct task_struct *p; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 306 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 307 | int jindex = 1; |
| 308 | int error = 0; |
| 309 | |
| 310 | if (undo) { |
| 311 | jindex = 0; |
| 312 | goto fail_recoverd; |
| 313 | } |
| 314 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 315 | sdp->sd_jindex = gfs2_lookup_simple(sdp->sd_master_dir, "jindex"); |
| 316 | if (IS_ERR(sdp->sd_jindex)) { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 317 | fs_err(sdp, "can't lookup journal index: %d\n", error); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 318 | return PTR_ERR(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 319 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 320 | ip = GFS2_I(sdp->sd_jindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 321 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 322 | |
| 323 | /* Load in the journal index special file */ |
| 324 | |
| 325 | error = gfs2_jindex_hold(sdp, &ji_gh); |
| 326 | if (error) { |
| 327 | fs_err(sdp, "can't read journal index: %d\n", error); |
| 328 | goto fail; |
| 329 | } |
| 330 | |
| 331 | error = -EINVAL; |
| 332 | if (!gfs2_jindex_size(sdp)) { |
| 333 | fs_err(sdp, "no journals!\n"); |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 334 | goto fail_jindex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | if (sdp->sd_args.ar_spectator) { |
| 338 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0); |
| 339 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 340 | } else { |
| 341 | if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) { |
| 342 | fs_err(sdp, "can't mount journal #%u\n", |
| 343 | sdp->sd_lockstruct.ls_jid); |
| 344 | fs_err(sdp, "there are only %u journals (0 - %u)\n", |
| 345 | gfs2_jindex_size(sdp), |
| 346 | gfs2_jindex_size(sdp) - 1); |
| 347 | goto fail_jindex; |
| 348 | } |
| 349 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid); |
| 350 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 351 | error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 352 | &gfs2_journal_glops, |
| 353 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP, |
| 354 | &sdp->sd_journal_gh); |
| 355 | if (error) { |
| 356 | fs_err(sdp, "can't acquire journal glock: %d\n", error); |
| 357 | goto fail_jindex; |
| 358 | } |
| 359 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 360 | ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
| 361 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, |
Bob Peterson | 75be73a | 2007-08-08 17:08:14 -0500 | [diff] [blame] | 362 | LM_FLAG_NOEXP | GL_EXACT | GL_NOCACHE, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 363 | &sdp->sd_jinode_gh); |
| 364 | if (error) { |
| 365 | fs_err(sdp, "can't acquire journal inode glock: %d\n", |
| 366 | error); |
| 367 | goto fail_journal_gh; |
| 368 | } |
| 369 | |
| 370 | error = gfs2_jdesc_check(sdp->sd_jdesc); |
| 371 | if (error) { |
| 372 | fs_err(sdp, "my journal (%u) is bad: %d\n", |
| 373 | sdp->sd_jdesc->jd_jid, error); |
| 374 | goto fail_jinode_gh; |
| 375 | } |
| 376 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 377 | } |
| 378 | |
| 379 | if (sdp->sd_lockstruct.ls_first) { |
| 380 | unsigned int x; |
| 381 | for (x = 0; x < sdp->sd_journals; x++) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 382 | error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x)); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 383 | if (error) { |
| 384 | fs_err(sdp, "error recovering journal %u: %d\n", |
| 385 | x, error); |
| 386 | goto fail_jinode_gh; |
| 387 | } |
| 388 | } |
| 389 | |
| 390 | gfs2_lm_others_may_mount(sdp); |
| 391 | } else if (!sdp->sd_args.ar_spectator) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 392 | error = gfs2_recover_journal(sdp->sd_jdesc); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 393 | if (error) { |
| 394 | fs_err(sdp, "error recovering my journal: %d\n", error); |
| 395 | goto fail_jinode_gh; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags); |
| 400 | gfs2_glock_dq_uninit(&ji_gh); |
| 401 | jindex = 0; |
| 402 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 403 | p = kthread_run(gfs2_recoverd, sdp, "gfs2_recoverd"); |
| 404 | error = IS_ERR(p); |
| 405 | if (error) { |
| 406 | fs_err(sdp, "can't start recoverd thread: %d\n", error); |
| 407 | goto fail_jinode_gh; |
| 408 | } |
| 409 | sdp->sd_recoverd_process = p; |
| 410 | |
| 411 | return 0; |
| 412 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 413 | fail_recoverd: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 414 | kthread_stop(sdp->sd_recoverd_process); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 415 | fail_jinode_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 416 | if (!sdp->sd_args.ar_spectator) |
| 417 | gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 418 | fail_journal_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 419 | if (!sdp->sd_args.ar_spectator) |
| 420 | gfs2_glock_dq_uninit(&sdp->sd_journal_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 421 | fail_jindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 422 | gfs2_jindex_free(sdp); |
| 423 | if (jindex) |
| 424 | gfs2_glock_dq_uninit(&ji_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 425 | fail: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 426 | iput(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 427 | return error; |
| 428 | } |
| 429 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 430 | |
| 431 | static int init_inodes(struct gfs2_sbd *sdp, int undo) |
| 432 | { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 433 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 434 | struct gfs2_inode *ip; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 435 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 436 | |
| 437 | if (undo) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 438 | goto fail_qinode; |
| 439 | |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 440 | inode = gfs2_lookup_root(sdp->sd_vfs, sdp->sd_sb.sb_master_dir.no_addr); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 441 | if (IS_ERR(inode)) { |
| 442 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 443 | fs_err(sdp, "can't read in master directory: %d\n", error); |
| 444 | goto fail; |
| 445 | } |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 446 | sdp->sd_master_dir = inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 447 | |
| 448 | error = init_journal(sdp, undo); |
| 449 | if (error) |
| 450 | goto fail_master; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 451 | |
| 452 | /* Read in the master inode number inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 453 | sdp->sd_inum_inode = gfs2_lookup_simple(sdp->sd_master_dir, "inum"); |
| 454 | if (IS_ERR(sdp->sd_inum_inode)) { |
| 455 | error = PTR_ERR(sdp->sd_inum_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 456 | fs_err(sdp, "can't read in inum inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 457 | goto fail_journal; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 458 | } |
| 459 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 460 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 461 | /* Read in the master statfs inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 462 | sdp->sd_statfs_inode = gfs2_lookup_simple(sdp->sd_master_dir, "statfs"); |
| 463 | if (IS_ERR(sdp->sd_statfs_inode)) { |
| 464 | error = PTR_ERR(sdp->sd_statfs_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 465 | fs_err(sdp, "can't read in statfs inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 466 | goto fail_inum; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 467 | } |
| 468 | |
| 469 | /* Read in the resource index inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 470 | sdp->sd_rindex = gfs2_lookup_simple(sdp->sd_master_dir, "rindex"); |
| 471 | if (IS_ERR(sdp->sd_rindex)) { |
| 472 | error = PTR_ERR(sdp->sd_rindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 473 | fs_err(sdp, "can't get resource index inode: %d\n", error); |
| 474 | goto fail_statfs; |
| 475 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 476 | ip = GFS2_I(sdp->sd_rindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 477 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
| 478 | sdp->sd_rindex_vn = ip->i_gl->gl_vn - 1; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 479 | |
| 480 | /* Read in the quota inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 481 | sdp->sd_quota_inode = gfs2_lookup_simple(sdp->sd_master_dir, "quota"); |
| 482 | if (IS_ERR(sdp->sd_quota_inode)) { |
| 483 | error = PTR_ERR(sdp->sd_quota_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 484 | fs_err(sdp, "can't get quota file inode: %d\n", error); |
| 485 | goto fail_rindex; |
| 486 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 487 | return 0; |
| 488 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 489 | fail_qinode: |
| 490 | iput(sdp->sd_quota_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 491 | fail_rindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 492 | gfs2_clear_rgrpd(sdp); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 493 | iput(sdp->sd_rindex); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 494 | fail_statfs: |
| 495 | iput(sdp->sd_statfs_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 496 | fail_inum: |
| 497 | iput(sdp->sd_inum_inode); |
| 498 | fail_journal: |
| 499 | init_journal(sdp, UNDO); |
| 500 | fail_master: |
| 501 | iput(sdp->sd_master_dir); |
| 502 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 503 | return error; |
| 504 | } |
| 505 | |
| 506 | static int init_per_node(struct gfs2_sbd *sdp, int undo) |
| 507 | { |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 508 | struct inode *pn = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 509 | char buf[30]; |
| 510 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 511 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 512 | |
| 513 | if (sdp->sd_args.ar_spectator) |
| 514 | return 0; |
| 515 | |
| 516 | if (undo) |
| 517 | goto fail_qc_gh; |
| 518 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 519 | pn = gfs2_lookup_simple(sdp->sd_master_dir, "per_node"); |
| 520 | if (IS_ERR(pn)) { |
| 521 | error = PTR_ERR(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 522 | fs_err(sdp, "can't find per_node directory: %d\n", error); |
| 523 | return error; |
| 524 | } |
| 525 | |
| 526 | sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 527 | sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf); |
| 528 | if (IS_ERR(sdp->sd_ir_inode)) { |
| 529 | error = PTR_ERR(sdp->sd_ir_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 530 | fs_err(sdp, "can't find local \"ir\" file: %d\n", error); |
| 531 | goto fail; |
| 532 | } |
| 533 | |
| 534 | sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 535 | sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); |
| 536 | if (IS_ERR(sdp->sd_sc_inode)) { |
| 537 | error = PTR_ERR(sdp->sd_sc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 538 | fs_err(sdp, "can't find local \"sc\" file: %d\n", error); |
| 539 | goto fail_ir_i; |
| 540 | } |
| 541 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 542 | sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 543 | sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf); |
| 544 | if (IS_ERR(sdp->sd_qc_inode)) { |
| 545 | error = PTR_ERR(sdp->sd_qc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 546 | fs_err(sdp, "can't find local \"qc\" file: %d\n", error); |
| 547 | goto fail_ut_i; |
| 548 | } |
| 549 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 550 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 551 | pn = NULL; |
| 552 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 553 | ip = GFS2_I(sdp->sd_ir_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 554 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 555 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 556 | &sdp->sd_ir_gh); |
| 557 | if (error) { |
| 558 | fs_err(sdp, "can't lock local \"ir\" file: %d\n", error); |
| 559 | goto fail_qc_i; |
| 560 | } |
| 561 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 562 | ip = GFS2_I(sdp->sd_sc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 563 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 564 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 565 | &sdp->sd_sc_gh); |
| 566 | if (error) { |
| 567 | fs_err(sdp, "can't lock local \"sc\" file: %d\n", error); |
| 568 | goto fail_ir_gh; |
| 569 | } |
| 570 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 571 | ip = GFS2_I(sdp->sd_qc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 572 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 573 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 574 | &sdp->sd_qc_gh); |
| 575 | if (error) { |
| 576 | fs_err(sdp, "can't lock local \"qc\" file: %d\n", error); |
| 577 | goto fail_ut_gh; |
| 578 | } |
| 579 | |
| 580 | return 0; |
| 581 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 582 | fail_qc_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 583 | gfs2_glock_dq_uninit(&sdp->sd_qc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 584 | fail_ut_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 585 | gfs2_glock_dq_uninit(&sdp->sd_sc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 586 | fail_ir_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 587 | gfs2_glock_dq_uninit(&sdp->sd_ir_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 588 | fail_qc_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 589 | iput(sdp->sd_qc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 590 | fail_ut_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 591 | iput(sdp->sd_sc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 592 | fail_ir_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 593 | iput(sdp->sd_ir_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 594 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 595 | if (pn) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 596 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 597 | return error; |
| 598 | } |
| 599 | |
| 600 | static int init_threads(struct gfs2_sbd *sdp, int undo) |
| 601 | { |
| 602 | struct task_struct *p; |
| 603 | int error = 0; |
| 604 | |
| 605 | if (undo) |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 606 | goto fail_quotad; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 607 | |
| 608 | sdp->sd_log_flush_time = jiffies; |
| 609 | sdp->sd_jindex_refresh_time = jiffies; |
| 610 | |
| 611 | p = kthread_run(gfs2_logd, sdp, "gfs2_logd"); |
| 612 | error = IS_ERR(p); |
| 613 | if (error) { |
| 614 | fs_err(sdp, "can't start logd thread: %d\n", error); |
| 615 | return error; |
| 616 | } |
| 617 | sdp->sd_logd_process = p; |
| 618 | |
| 619 | sdp->sd_statfs_sync_time = jiffies; |
| 620 | sdp->sd_quota_sync_time = jiffies; |
| 621 | |
| 622 | p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad"); |
| 623 | error = IS_ERR(p); |
| 624 | if (error) { |
| 625 | fs_err(sdp, "can't start quotad thread: %d\n", error); |
| 626 | goto fail; |
| 627 | } |
| 628 | sdp->sd_quotad_process = p; |
| 629 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 630 | return 0; |
| 631 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 632 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 633 | fail_quotad: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 634 | kthread_stop(sdp->sd_quotad_process); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 635 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 636 | kthread_stop(sdp->sd_logd_process); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 637 | return error; |
| 638 | } |
| 639 | |
| 640 | /** |
| 641 | * fill_super - Read in superblock |
| 642 | * @sb: The VFS superblock |
| 643 | * @data: Mount options |
| 644 | * @silent: Don't complain if it's not a GFS2 filesystem |
| 645 | * |
| 646 | * Returns: errno |
| 647 | */ |
| 648 | |
| 649 | static int fill_super(struct super_block *sb, void *data, int silent) |
| 650 | { |
| 651 | struct gfs2_sbd *sdp; |
| 652 | struct gfs2_holder mount_gh; |
| 653 | int error; |
| 654 | |
| 655 | sdp = init_sbd(sb); |
| 656 | if (!sdp) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 657 | printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 658 | return -ENOMEM; |
| 659 | } |
| 660 | |
| 661 | error = gfs2_mount_args(sdp, (char *)data, 0); |
| 662 | if (error) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 663 | printk(KERN_WARNING "GFS2: can't parse mount arguments\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 664 | goto fail; |
| 665 | } |
| 666 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 667 | init_vfs(sb, SDF_NOATIME); |
| 668 | |
| 669 | /* Set up the buffer cache and fill in some fake block size values |
| 670 | to allow us to read-in the on-disk superblock. */ |
| 671 | sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK); |
| 672 | sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; |
| 673 | sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - |
| 674 | GFS2_BASIC_BLOCK_SHIFT; |
| 675 | sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 676 | |
| 677 | error = init_names(sdp, silent); |
| 678 | if (error) |
| 679 | goto fail; |
| 680 | |
Robert Peterson | 7c52b16 | 2007-03-16 10:26:37 +0000 | [diff] [blame] | 681 | gfs2_create_debugfs_file(sdp); |
| 682 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 683 | error = gfs2_sys_fs_add(sdp); |
| 684 | if (error) |
| 685 | goto fail; |
| 686 | |
| 687 | error = gfs2_lm_mount(sdp, silent); |
| 688 | if (error) |
| 689 | goto fail_sys; |
| 690 | |
| 691 | error = init_locking(sdp, &mount_gh, DO); |
| 692 | if (error) |
| 693 | goto fail_lm; |
| 694 | |
| 695 | error = init_sb(sdp, silent, DO); |
| 696 | if (error) |
| 697 | goto fail_locking; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 698 | |
| 699 | error = init_inodes(sdp, DO); |
| 700 | if (error) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 701 | goto fail_sb; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 702 | |
| 703 | error = init_per_node(sdp, DO); |
| 704 | if (error) |
| 705 | goto fail_inodes; |
| 706 | |
| 707 | error = gfs2_statfs_init(sdp); |
| 708 | if (error) { |
| 709 | fs_err(sdp, "can't initialize statfs subsystem: %d\n", error); |
| 710 | goto fail_per_node; |
| 711 | } |
| 712 | |
| 713 | error = init_threads(sdp, DO); |
| 714 | if (error) |
| 715 | goto fail_per_node; |
| 716 | |
| 717 | if (!(sb->s_flags & MS_RDONLY)) { |
| 718 | error = gfs2_make_fs_rw(sdp); |
| 719 | if (error) { |
| 720 | fs_err(sdp, "can't make FS RW: %d\n", error); |
| 721 | goto fail_threads; |
| 722 | } |
| 723 | } |
| 724 | |
| 725 | gfs2_glock_dq_uninit(&mount_gh); |
| 726 | |
| 727 | return 0; |
| 728 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 729 | fail_threads: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 730 | init_threads(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 731 | fail_per_node: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 732 | init_per_node(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 733 | fail_inodes: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 734 | init_inodes(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 735 | fail_sb: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 736 | init_sb(sdp, 0, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 737 | fail_locking: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 738 | init_locking(sdp, &mount_gh, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 739 | fail_lm: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 740 | gfs2_gl_hash_clear(sdp, WAIT); |
| 741 | gfs2_lm_unmount(sdp); |
| 742 | while (invalidate_inodes(sb)) |
| 743 | yield(); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 744 | fail_sys: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 745 | gfs2_sys_fs_del(sdp); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 746 | fail: |
Robert Peterson | 5f88209 | 2007-04-18 11:41:11 -0500 | [diff] [blame] | 747 | gfs2_delete_debugfs_file(sdp); |
Steven Whitehouse | a2c4580 | 2006-09-08 10:13:03 -0400 | [diff] [blame] | 748 | kfree(sdp); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 749 | sb->s_fs_info = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 750 | return error; |
| 751 | } |
| 752 | |
Andrew Morton | ccd6efd | 2006-06-30 02:16:34 -0700 | [diff] [blame] | 753 | static int gfs2_get_sb(struct file_system_type *fs_type, int flags, |
| 754 | const char *dev_name, void *data, struct vfsmount *mnt) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 755 | { |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 756 | struct super_block *sb; |
| 757 | struct gfs2_sbd *sdp; |
| 758 | int error = get_sb_bdev(fs_type, flags, dev_name, data, fill_super, mnt); |
| 759 | if (error) |
| 760 | goto out; |
| 761 | sb = mnt->mnt_sb; |
Steven Whitehouse | 26c1a57 | 2006-09-04 15:32:10 -0400 | [diff] [blame] | 762 | sdp = sb->s_fs_info; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 763 | sdp->sd_gfs2mnt = mnt; |
| 764 | out: |
| 765 | return error; |
| 766 | } |
| 767 | |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 768 | static int fill_super_meta(struct super_block *sb, struct super_block *new, |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 769 | void *data, int silent) |
| 770 | { |
| 771 | struct gfs2_sbd *sdp = sb->s_fs_info; |
| 772 | struct inode *inode; |
| 773 | int error = 0; |
| 774 | |
| 775 | new->s_fs_info = sdp; |
| 776 | sdp->sd_vfs_meta = sb; |
| 777 | |
| 778 | init_vfs(new, SDF_NOATIME); |
| 779 | |
| 780 | /* Get the master inode */ |
| 781 | inode = igrab(sdp->sd_master_dir); |
| 782 | |
| 783 | new->s_root = d_alloc_root(inode); |
| 784 | if (!new->s_root) { |
| 785 | fs_err(sdp, "can't get root dentry\n"); |
| 786 | error = -ENOMEM; |
| 787 | iput(inode); |
Adrian Bunk | bbbe451 | 2006-10-19 15:27:00 +0200 | [diff] [blame] | 788 | } else |
| 789 | new->s_root->d_op = &gfs2_dops; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 790 | |
| 791 | return error; |
| 792 | } |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 793 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 794 | static int set_bdev_super(struct super_block *s, void *data) |
| 795 | { |
| 796 | s->s_bdev = data; |
| 797 | s->s_dev = s->s_bdev->bd_dev; |
| 798 | return 0; |
| 799 | } |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 800 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 801 | static int test_bdev_super(struct super_block *s, void *data) |
| 802 | { |
Steven Whitehouse | 26c1a57 | 2006-09-04 15:32:10 -0400 | [diff] [blame] | 803 | return s->s_bdev == data; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 804 | } |
| 805 | |
| 806 | static struct super_block* get_gfs2_sb(const char *dev_name) |
| 807 | { |
| 808 | struct kstat stat; |
| 809 | struct nameidata nd; |
| 810 | struct file_system_type *fstype; |
| 811 | struct super_block *sb = NULL, *s; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 812 | int error; |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 813 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 814 | error = path_lookup(dev_name, LOOKUP_FOLLOW, &nd); |
| 815 | if (error) { |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 816 | printk(KERN_WARNING "GFS2: path_lookup on %s returned error\n", |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 817 | dev_name); |
| 818 | goto out; |
| 819 | } |
| 820 | error = vfs_getattr(nd.mnt, nd.dentry, &stat); |
| 821 | |
| 822 | fstype = get_fs_type("gfs2"); |
Denis Cheng | adb4ec1 | 2007-08-11 10:27:07 +0800 | [diff] [blame] | 823 | list_for_each_entry(s, &fstype->fs_supers, s_instances) { |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 824 | if ((S_ISBLK(stat.mode) && s->s_dev == stat.rdev) || |
| 825 | (S_ISDIR(stat.mode) && s == nd.dentry->d_inode->i_sb)) { |
| 826 | sb = s; |
| 827 | goto free_nd; |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | printk(KERN_WARNING "GFS2: Unrecognized block device or " |
Richard Fearn | d5a6751 | 2007-02-17 17:29:15 +0000 | [diff] [blame] | 832 | "mount point %s\n", dev_name); |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 833 | |
| 834 | free_nd: |
| 835 | path_release(&nd); |
| 836 | out: |
| 837 | return sb; |
| 838 | } |
| 839 | |
| 840 | static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags, |
| 841 | const char *dev_name, void *data, struct vfsmount *mnt) |
| 842 | { |
| 843 | int error = 0; |
| 844 | struct super_block *sb = NULL, *new; |
| 845 | struct gfs2_sbd *sdp; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 846 | |
| 847 | sb = get_gfs2_sb(dev_name); |
| 848 | if (!sb) { |
| 849 | printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n"); |
| 850 | error = -ENOENT; |
| 851 | goto error; |
| 852 | } |
Denis Cheng | 2d3ba1e | 2007-08-11 10:27:08 +0800 | [diff] [blame] | 853 | sdp = sb->s_fs_info; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 854 | if (sdp->sd_vfs_meta) { |
| 855 | printk(KERN_WARNING "GFS2: gfs2meta mount already exists\n"); |
| 856 | error = -EBUSY; |
| 857 | goto error; |
| 858 | } |
David Chinner | f73ca1b | 2007-01-10 23:15:41 -0800 | [diff] [blame] | 859 | down(&sb->s_bdev->bd_mount_sem); |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 860 | new = sget(fs_type, test_bdev_super, set_bdev_super, sb->s_bdev); |
David Chinner | f73ca1b | 2007-01-10 23:15:41 -0800 | [diff] [blame] | 861 | up(&sb->s_bdev->bd_mount_sem); |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 862 | if (IS_ERR(new)) { |
| 863 | error = PTR_ERR(new); |
| 864 | goto error; |
| 865 | } |
| 866 | module_put(fs_type->owner); |
| 867 | new->s_flags = flags; |
| 868 | strlcpy(new->s_id, sb->s_id, sizeof(new->s_id)); |
| 869 | sb_set_blocksize(new, sb->s_blocksize); |
| 870 | error = fill_super_meta(sb, new, data, flags & MS_SILENT ? 1 : 0); |
| 871 | if (error) { |
| 872 | up_write(&new->s_umount); |
| 873 | deactivate_super(new); |
| 874 | goto error; |
| 875 | } |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 876 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 877 | new->s_flags |= MS_ACTIVE; |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 878 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 879 | /* Grab a reference to the gfs2 mount point */ |
| 880 | atomic_inc(&sdp->sd_gfs2mnt->mnt_count); |
| 881 | return simple_set_mnt(mnt, new); |
| 882 | error: |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 883 | return error; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 884 | } |
| 885 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 886 | static void gfs2_kill_sb(struct super_block *sb) |
| 887 | { |
Robert Peterson | 7c52b16 | 2007-03-16 10:26:37 +0000 | [diff] [blame] | 888 | gfs2_delete_debugfs_file(sb->s_fs_info); |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 889 | kill_block_super(sb); |
| 890 | } |
| 891 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 892 | static void gfs2_kill_sb_meta(struct super_block *sb) |
| 893 | { |
| 894 | struct gfs2_sbd *sdp = sb->s_fs_info; |
| 895 | generic_shutdown_super(sb); |
| 896 | sdp->sd_vfs_meta = NULL; |
| 897 | atomic_dec(&sdp->sd_gfs2mnt->mnt_count); |
| 898 | } |
| 899 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 900 | struct file_system_type gfs2_fs_type = { |
| 901 | .name = "gfs2", |
| 902 | .fs_flags = FS_REQUIRES_DEV, |
| 903 | .get_sb = gfs2_get_sb, |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 904 | .kill_sb = gfs2_kill_sb, |
| 905 | .owner = THIS_MODULE, |
| 906 | }; |
| 907 | |
| 908 | struct file_system_type gfs2meta_fs_type = { |
| 909 | .name = "gfs2meta", |
| 910 | .fs_flags = FS_REQUIRES_DEV, |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 911 | .get_sb = gfs2_get_sb_meta, |
| 912 | .kill_sb = gfs2_kill_sb_meta, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 913 | .owner = THIS_MODULE, |
| 914 | }; |
| 915 | |