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> |
| 15 | #include <linux/vmalloc.h> |
| 16 | #include <linux/blkdev.h> |
| 17 | #include <linux/kthread.h> |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 18 | #include <linux/namei.h> |
| 19 | #include <linux/mount.h> |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 20 | #include <linux/gfs2_ondisk.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 "lm_interface.h" |
| 24 | #include "incore.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 25 | #include "daemon.h" |
| 26 | #include "glock.h" |
| 27 | #include "glops.h" |
| 28 | #include "inode.h" |
| 29 | #include "lm.h" |
| 30 | #include "mount.h" |
| 31 | #include "ops_export.h" |
| 32 | #include "ops_fstype.h" |
| 33 | #include "ops_super.h" |
| 34 | #include "recovery.h" |
| 35 | #include "rgrp.h" |
| 36 | #include "super.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 37 | #include "sys.h" |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 38 | #include "util.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 39 | |
| 40 | #define DO 0 |
| 41 | #define UNDO 1 |
| 42 | |
Robert S Peterson | 5bb76af | 2006-05-05 16:29:50 -0400 | [diff] [blame] | 43 | extern struct dentry_operations gfs2_dops; |
| 44 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 45 | static struct gfs2_sbd *init_sbd(struct super_block *sb) |
| 46 | { |
| 47 | struct gfs2_sbd *sdp; |
| 48 | unsigned int x; |
| 49 | |
| 50 | sdp = vmalloc(sizeof(struct gfs2_sbd)); |
| 51 | if (!sdp) |
| 52 | return NULL; |
| 53 | |
| 54 | memset(sdp, 0, sizeof(struct gfs2_sbd)); |
| 55 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 56 | sb->s_fs_info = sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 57 | sdp->sd_vfs = sb; |
| 58 | |
| 59 | gfs2_tune_init(&sdp->sd_tune); |
| 60 | |
| 61 | for (x = 0; x < GFS2_GL_HASH_SIZE; x++) { |
Steven Whitehouse | ecb1460 | 2006-07-05 10:41:39 -0400 | [diff] [blame] | 62 | rwlock_init(&sdp->sd_gl_hash[x].hb_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 63 | INIT_LIST_HEAD(&sdp->sd_gl_hash[x].hb_list); |
| 64 | } |
| 65 | INIT_LIST_HEAD(&sdp->sd_reclaim_list); |
| 66 | spin_lock_init(&sdp->sd_reclaim_lock); |
| 67 | init_waitqueue_head(&sdp->sd_reclaim_wq); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 68 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 69 | mutex_init(&sdp->sd_inum_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 70 | spin_lock_init(&sdp->sd_statfs_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 71 | mutex_init(&sdp->sd_statfs_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 72 | |
| 73 | spin_lock_init(&sdp->sd_rindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 74 | mutex_init(&sdp->sd_rindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 75 | INIT_LIST_HEAD(&sdp->sd_rindex_list); |
| 76 | INIT_LIST_HEAD(&sdp->sd_rindex_mru_list); |
| 77 | INIT_LIST_HEAD(&sdp->sd_rindex_recent_list); |
| 78 | |
| 79 | INIT_LIST_HEAD(&sdp->sd_jindex_list); |
| 80 | spin_lock_init(&sdp->sd_jindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 81 | mutex_init(&sdp->sd_jindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 82 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 83 | INIT_LIST_HEAD(&sdp->sd_quota_list); |
| 84 | spin_lock_init(&sdp->sd_quota_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 85 | mutex_init(&sdp->sd_quota_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 86 | |
| 87 | spin_lock_init(&sdp->sd_log_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 88 | |
| 89 | INIT_LIST_HEAD(&sdp->sd_log_le_gl); |
| 90 | INIT_LIST_HEAD(&sdp->sd_log_le_buf); |
| 91 | INIT_LIST_HEAD(&sdp->sd_log_le_revoke); |
| 92 | INIT_LIST_HEAD(&sdp->sd_log_le_rg); |
| 93 | INIT_LIST_HEAD(&sdp->sd_log_le_databuf); |
| 94 | |
Steven Whitehouse | 71b86f5 | 2006-03-28 14:14:04 -0500 | [diff] [blame] | 95 | mutex_init(&sdp->sd_log_reserve_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 96 | INIT_LIST_HEAD(&sdp->sd_ail1_list); |
| 97 | INIT_LIST_HEAD(&sdp->sd_ail2_list); |
| 98 | |
Steven Whitehouse | 484adff | 2006-03-29 09:12:12 -0500 | [diff] [blame] | 99 | init_rwsem(&sdp->sd_log_flush_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 100 | INIT_LIST_HEAD(&sdp->sd_log_flush_list); |
| 101 | |
| 102 | INIT_LIST_HEAD(&sdp->sd_revoke_list); |
| 103 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 104 | mutex_init(&sdp->sd_freeze_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 105 | |
| 106 | return sdp; |
| 107 | } |
| 108 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 109 | static void init_vfs(struct super_block *sb, unsigned noatime) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 110 | { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 111 | struct gfs2_sbd *sdp = sb->s_fs_info; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 112 | |
| 113 | sb->s_magic = GFS2_MAGIC; |
| 114 | sb->s_op = &gfs2_super_ops; |
| 115 | sb->s_export_op = &gfs2_export_ops; |
| 116 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
| 117 | |
| 118 | if (sb->s_flags & (MS_NOATIME | MS_NODIRATIME)) |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 119 | set_bit(noatime, &sdp->sd_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 120 | |
| 121 | /* Don't let the VFS update atimes. GFS2 handles this itself. */ |
| 122 | sb->s_flags |= MS_NOATIME | MS_NODIRATIME; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 123 | } |
| 124 | |
| 125 | static int init_names(struct gfs2_sbd *sdp, int silent) |
| 126 | { |
| 127 | struct gfs2_sb *sb = NULL; |
| 128 | char *proto, *table; |
| 129 | int error = 0; |
| 130 | |
| 131 | proto = sdp->sd_args.ar_lockproto; |
| 132 | table = sdp->sd_args.ar_locktable; |
| 133 | |
| 134 | /* Try to autodetect */ |
| 135 | |
| 136 | if (!proto[0] || !table[0]) { |
| 137 | struct buffer_head *bh; |
| 138 | bh = sb_getblk(sdp->sd_vfs, |
| 139 | GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); |
| 140 | lock_buffer(bh); |
| 141 | clear_buffer_uptodate(bh); |
| 142 | clear_buffer_dirty(bh); |
| 143 | unlock_buffer(bh); |
| 144 | ll_rw_block(READ, 1, &bh); |
| 145 | wait_on_buffer(bh); |
| 146 | |
| 147 | if (!buffer_uptodate(bh)) { |
| 148 | brelse(bh); |
| 149 | return -EIO; |
| 150 | } |
| 151 | |
| 152 | sb = kmalloc(sizeof(struct gfs2_sb), GFP_KERNEL); |
| 153 | if (!sb) { |
| 154 | brelse(bh); |
| 155 | return -ENOMEM; |
| 156 | } |
| 157 | gfs2_sb_in(sb, bh->b_data); |
| 158 | brelse(bh); |
| 159 | |
| 160 | error = gfs2_check_sb(sdp, sb, silent); |
| 161 | if (error) |
| 162 | goto out; |
| 163 | |
| 164 | if (!proto[0]) |
| 165 | proto = sb->sb_lockproto; |
| 166 | if (!table[0]) |
| 167 | table = sb->sb_locktable; |
| 168 | } |
| 169 | |
| 170 | if (!table[0]) |
| 171 | table = sdp->sd_vfs->s_id; |
| 172 | |
| 173 | snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto); |
| 174 | snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table); |
| 175 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 176 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 177 | kfree(sb); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 178 | return error; |
| 179 | } |
| 180 | |
| 181 | static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, |
| 182 | int undo) |
| 183 | { |
| 184 | struct task_struct *p; |
| 185 | int error = 0; |
| 186 | |
| 187 | if (undo) |
| 188 | goto fail_trans; |
| 189 | |
| 190 | p = kthread_run(gfs2_scand, sdp, "gfs2_scand"); |
| 191 | error = IS_ERR(p); |
| 192 | if (error) { |
| 193 | fs_err(sdp, "can't start scand thread: %d\n", error); |
| 194 | return error; |
| 195 | } |
| 196 | sdp->sd_scand_process = p; |
| 197 | |
| 198 | for (sdp->sd_glockd_num = 0; |
| 199 | sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd; |
| 200 | sdp->sd_glockd_num++) { |
| 201 | p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd"); |
| 202 | error = IS_ERR(p); |
| 203 | if (error) { |
| 204 | fs_err(sdp, "can't start glockd thread: %d\n", error); |
| 205 | goto fail; |
| 206 | } |
| 207 | sdp->sd_glockd_process[sdp->sd_glockd_num] = p; |
| 208 | } |
| 209 | |
| 210 | error = gfs2_glock_nq_num(sdp, |
| 211 | GFS2_MOUNT_LOCK, &gfs2_nondisk_glops, |
| 212 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE, |
| 213 | mount_gh); |
| 214 | if (error) { |
| 215 | fs_err(sdp, "can't acquire mount glock: %d\n", error); |
| 216 | goto fail; |
| 217 | } |
| 218 | |
| 219 | error = gfs2_glock_nq_num(sdp, |
| 220 | GFS2_LIVE_LOCK, &gfs2_nondisk_glops, |
| 221 | LM_ST_SHARED, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 222 | LM_FLAG_NOEXP | GL_EXACT, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 223 | &sdp->sd_live_gh); |
| 224 | if (error) { |
| 225 | fs_err(sdp, "can't acquire live glock: %d\n", error); |
| 226 | goto fail_mount; |
| 227 | } |
| 228 | |
| 229 | error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops, |
| 230 | CREATE, &sdp->sd_rename_gl); |
| 231 | if (error) { |
| 232 | fs_err(sdp, "can't create rename glock: %d\n", error); |
| 233 | goto fail_live; |
| 234 | } |
| 235 | |
| 236 | error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops, |
| 237 | CREATE, &sdp->sd_trans_gl); |
| 238 | if (error) { |
| 239 | fs_err(sdp, "can't create transaction glock: %d\n", error); |
| 240 | goto fail_rename; |
| 241 | } |
| 242 | set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags); |
| 243 | |
| 244 | return 0; |
| 245 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 246 | fail_trans: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 247 | gfs2_glock_put(sdp->sd_trans_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 248 | fail_rename: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 249 | gfs2_glock_put(sdp->sd_rename_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 250 | fail_live: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 251 | gfs2_glock_dq_uninit(&sdp->sd_live_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 252 | fail_mount: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 253 | gfs2_glock_dq_uninit(mount_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 254 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 255 | while (sdp->sd_glockd_num--) |
| 256 | kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]); |
| 257 | |
| 258 | kthread_stop(sdp->sd_scand_process); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 259 | return error; |
| 260 | } |
| 261 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 262 | static struct inode *gfs2_lookup_root(struct super_block *sb, |
| 263 | struct gfs2_inum *inum) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 264 | { |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 265 | return gfs2_inode_lookup(sb, inum, DT_DIR); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 266 | } |
| 267 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 268 | static int init_sb(struct gfs2_sbd *sdp, int silent, int undo) |
| 269 | { |
| 270 | struct super_block *sb = sdp->sd_vfs; |
| 271 | struct gfs2_holder sb_gh; |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 272 | struct gfs2_inum *inum; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 273 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 274 | int error = 0; |
| 275 | |
| 276 | if (undo) { |
Russell Cattelan | 8872187 | 2006-08-10 11:08:40 -0500 | [diff] [blame] | 277 | if (sb->s_root) { |
| 278 | dput(sb->s_root); |
| 279 | sb->s_root = NULL; |
| 280 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 281 | return 0; |
| 282 | } |
| 283 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 284 | error = gfs2_glock_nq_num(sdp, GFS2_SB_LOCK, &gfs2_meta_glops, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 285 | LM_ST_SHARED, 0, &sb_gh); |
| 286 | if (error) { |
| 287 | fs_err(sdp, "can't acquire superblock glock: %d\n", error); |
| 288 | return error; |
| 289 | } |
| 290 | |
| 291 | error = gfs2_read_sb(sdp, sb_gh.gh_gl, silent); |
| 292 | if (error) { |
| 293 | fs_err(sdp, "can't read superblock: %d\n", error); |
| 294 | goto out; |
| 295 | } |
| 296 | |
| 297 | /* Set up the buffer cache and SB for real */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 298 | if (sdp->sd_sb.sb_bsize < bdev_hardsect_size(sb->s_bdev)) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 299 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 300 | fs_err(sdp, "FS block size (%u) is too small for device " |
| 301 | "block size (%u)\n", |
| 302 | sdp->sd_sb.sb_bsize, bdev_hardsect_size(sb->s_bdev)); |
| 303 | goto out; |
| 304 | } |
| 305 | if (sdp->sd_sb.sb_bsize > PAGE_SIZE) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 306 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 307 | fs_err(sdp, "FS block size (%u) is too big for machine " |
| 308 | "page size (%u)\n", |
| 309 | sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE); |
| 310 | goto out; |
| 311 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 312 | sb_set_blocksize(sb, sdp->sd_sb.sb_bsize); |
| 313 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 314 | /* Get the root inode */ |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 315 | inum = &sdp->sd_sb.sb_root_dir; |
| 316 | if (sb->s_type == &gfs2meta_fs_type) |
| 317 | inum = &sdp->sd_sb.sb_master_dir; |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 318 | inode = gfs2_lookup_root(sb, inum); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 319 | if (IS_ERR(inode)) { |
| 320 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 321 | fs_err(sdp, "can't read in root inode: %d\n", error); |
| 322 | goto out; |
| 323 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 324 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 325 | sb->s_root = d_alloc_root(inode); |
| 326 | if (!sb->s_root) { |
| 327 | fs_err(sdp, "can't get root dentry\n"); |
| 328 | error = -ENOMEM; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 329 | iput(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 330 | } |
Robert S Peterson | 5bb76af | 2006-05-05 16:29:50 -0400 | [diff] [blame] | 331 | sb->s_root->d_op = &gfs2_dops; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 332 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 333 | gfs2_glock_dq_uninit(&sb_gh); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 334 | return error; |
| 335 | } |
| 336 | |
| 337 | static int init_journal(struct gfs2_sbd *sdp, int undo) |
| 338 | { |
| 339 | struct gfs2_holder ji_gh; |
| 340 | struct task_struct *p; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 341 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 342 | int jindex = 1; |
| 343 | int error = 0; |
| 344 | |
| 345 | if (undo) { |
| 346 | jindex = 0; |
| 347 | goto fail_recoverd; |
| 348 | } |
| 349 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 350 | sdp->sd_jindex = gfs2_lookup_simple(sdp->sd_master_dir, "jindex"); |
| 351 | if (IS_ERR(sdp->sd_jindex)) { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 352 | fs_err(sdp, "can't lookup journal index: %d\n", error); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 353 | return PTR_ERR(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 354 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 355 | ip = GFS2_I(sdp->sd_jindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 356 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 357 | |
| 358 | /* Load in the journal index special file */ |
| 359 | |
| 360 | error = gfs2_jindex_hold(sdp, &ji_gh); |
| 361 | if (error) { |
| 362 | fs_err(sdp, "can't read journal index: %d\n", error); |
| 363 | goto fail; |
| 364 | } |
| 365 | |
| 366 | error = -EINVAL; |
| 367 | if (!gfs2_jindex_size(sdp)) { |
| 368 | fs_err(sdp, "no journals!\n"); |
| 369 | goto fail_jindex; |
| 370 | } |
| 371 | |
| 372 | if (sdp->sd_args.ar_spectator) { |
| 373 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0); |
| 374 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 375 | } else { |
| 376 | if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) { |
| 377 | fs_err(sdp, "can't mount journal #%u\n", |
| 378 | sdp->sd_lockstruct.ls_jid); |
| 379 | fs_err(sdp, "there are only %u journals (0 - %u)\n", |
| 380 | gfs2_jindex_size(sdp), |
| 381 | gfs2_jindex_size(sdp) - 1); |
| 382 | goto fail_jindex; |
| 383 | } |
| 384 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid); |
| 385 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 386 | error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 387 | &gfs2_journal_glops, |
| 388 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP, |
| 389 | &sdp->sd_journal_gh); |
| 390 | if (error) { |
| 391 | fs_err(sdp, "can't acquire journal glock: %d\n", error); |
| 392 | goto fail_jindex; |
| 393 | } |
| 394 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 395 | ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
| 396 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 397 | LM_FLAG_NOEXP | GL_EXACT, |
| 398 | &sdp->sd_jinode_gh); |
| 399 | if (error) { |
| 400 | fs_err(sdp, "can't acquire journal inode glock: %d\n", |
| 401 | error); |
| 402 | goto fail_journal_gh; |
| 403 | } |
| 404 | |
| 405 | error = gfs2_jdesc_check(sdp->sd_jdesc); |
| 406 | if (error) { |
| 407 | fs_err(sdp, "my journal (%u) is bad: %d\n", |
| 408 | sdp->sd_jdesc->jd_jid, error); |
| 409 | goto fail_jinode_gh; |
| 410 | } |
| 411 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 412 | } |
| 413 | |
| 414 | if (sdp->sd_lockstruct.ls_first) { |
| 415 | unsigned int x; |
| 416 | for (x = 0; x < sdp->sd_journals; x++) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 417 | error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x)); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 418 | if (error) { |
| 419 | fs_err(sdp, "error recovering journal %u: %d\n", |
| 420 | x, error); |
| 421 | goto fail_jinode_gh; |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | gfs2_lm_others_may_mount(sdp); |
| 426 | } else if (!sdp->sd_args.ar_spectator) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 427 | error = gfs2_recover_journal(sdp->sd_jdesc); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 428 | if (error) { |
| 429 | fs_err(sdp, "error recovering my journal: %d\n", error); |
| 430 | goto fail_jinode_gh; |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags); |
| 435 | gfs2_glock_dq_uninit(&ji_gh); |
| 436 | jindex = 0; |
| 437 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 438 | p = kthread_run(gfs2_recoverd, sdp, "gfs2_recoverd"); |
| 439 | error = IS_ERR(p); |
| 440 | if (error) { |
| 441 | fs_err(sdp, "can't start recoverd thread: %d\n", error); |
| 442 | goto fail_jinode_gh; |
| 443 | } |
| 444 | sdp->sd_recoverd_process = p; |
| 445 | |
| 446 | return 0; |
| 447 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 448 | fail_recoverd: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 449 | kthread_stop(sdp->sd_recoverd_process); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 450 | fail_jinode_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 451 | if (!sdp->sd_args.ar_spectator) |
| 452 | gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 453 | fail_journal_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 454 | if (!sdp->sd_args.ar_spectator) |
| 455 | gfs2_glock_dq_uninit(&sdp->sd_journal_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 456 | fail_jindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 457 | gfs2_jindex_free(sdp); |
| 458 | if (jindex) |
| 459 | gfs2_glock_dq_uninit(&ji_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 460 | fail: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 461 | iput(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 462 | return error; |
| 463 | } |
| 464 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 465 | |
| 466 | static int init_inodes(struct gfs2_sbd *sdp, int undo) |
| 467 | { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 468 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 469 | struct gfs2_inode *ip; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 470 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 471 | |
| 472 | if (undo) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 473 | goto fail_qinode; |
| 474 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 475 | inode = gfs2_lookup_root(sdp->sd_vfs, &sdp->sd_sb.sb_master_dir); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 476 | if (IS_ERR(inode)) { |
| 477 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 478 | fs_err(sdp, "can't read in master directory: %d\n", error); |
| 479 | goto fail; |
| 480 | } |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 481 | sdp->sd_master_dir = inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 482 | |
| 483 | error = init_journal(sdp, undo); |
| 484 | if (error) |
| 485 | goto fail_master; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 486 | |
| 487 | /* Read in the master inode number inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 488 | sdp->sd_inum_inode = gfs2_lookup_simple(sdp->sd_master_dir, "inum"); |
| 489 | if (IS_ERR(sdp->sd_inum_inode)) { |
| 490 | error = PTR_ERR(sdp->sd_inum_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 491 | fs_err(sdp, "can't read in inum inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 492 | goto fail_journal; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 493 | } |
| 494 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 495 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 496 | /* Read in the master statfs inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 497 | sdp->sd_statfs_inode = gfs2_lookup_simple(sdp->sd_master_dir, "statfs"); |
| 498 | if (IS_ERR(sdp->sd_statfs_inode)) { |
| 499 | error = PTR_ERR(sdp->sd_statfs_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 500 | fs_err(sdp, "can't read in statfs inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 501 | goto fail_inum; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 502 | } |
| 503 | |
| 504 | /* Read in the resource index inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 505 | sdp->sd_rindex = gfs2_lookup_simple(sdp->sd_master_dir, "rindex"); |
| 506 | if (IS_ERR(sdp->sd_rindex)) { |
| 507 | error = PTR_ERR(sdp->sd_rindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 508 | fs_err(sdp, "can't get resource index inode: %d\n", error); |
| 509 | goto fail_statfs; |
| 510 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 511 | ip = GFS2_I(sdp->sd_rindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 512 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
| 513 | sdp->sd_rindex_vn = ip->i_gl->gl_vn - 1; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 514 | |
| 515 | /* Read in the quota inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 516 | sdp->sd_quota_inode = gfs2_lookup_simple(sdp->sd_master_dir, "quota"); |
| 517 | if (IS_ERR(sdp->sd_quota_inode)) { |
| 518 | error = PTR_ERR(sdp->sd_quota_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 519 | fs_err(sdp, "can't get quota file inode: %d\n", error); |
| 520 | goto fail_rindex; |
| 521 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 522 | return 0; |
| 523 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 524 | fail_qinode: |
| 525 | iput(sdp->sd_quota_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 526 | fail_rindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 527 | gfs2_clear_rgrpd(sdp); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 528 | iput(sdp->sd_rindex); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 529 | fail_statfs: |
| 530 | iput(sdp->sd_statfs_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 531 | fail_inum: |
| 532 | iput(sdp->sd_inum_inode); |
| 533 | fail_journal: |
| 534 | init_journal(sdp, UNDO); |
| 535 | fail_master: |
| 536 | iput(sdp->sd_master_dir); |
| 537 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 538 | return error; |
| 539 | } |
| 540 | |
| 541 | static int init_per_node(struct gfs2_sbd *sdp, int undo) |
| 542 | { |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 543 | struct inode *pn = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 544 | char buf[30]; |
| 545 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 546 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 547 | |
| 548 | if (sdp->sd_args.ar_spectator) |
| 549 | return 0; |
| 550 | |
| 551 | if (undo) |
| 552 | goto fail_qc_gh; |
| 553 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 554 | pn = gfs2_lookup_simple(sdp->sd_master_dir, "per_node"); |
| 555 | if (IS_ERR(pn)) { |
| 556 | error = PTR_ERR(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 557 | fs_err(sdp, "can't find per_node directory: %d\n", error); |
| 558 | return error; |
| 559 | } |
| 560 | |
| 561 | sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 562 | sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf); |
| 563 | if (IS_ERR(sdp->sd_ir_inode)) { |
| 564 | error = PTR_ERR(sdp->sd_ir_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 565 | fs_err(sdp, "can't find local \"ir\" file: %d\n", error); |
| 566 | goto fail; |
| 567 | } |
| 568 | |
| 569 | sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 570 | sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); |
| 571 | if (IS_ERR(sdp->sd_sc_inode)) { |
| 572 | error = PTR_ERR(sdp->sd_sc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 573 | fs_err(sdp, "can't find local \"sc\" file: %d\n", error); |
| 574 | goto fail_ir_i; |
| 575 | } |
| 576 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 577 | sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 578 | sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf); |
| 579 | if (IS_ERR(sdp->sd_qc_inode)) { |
| 580 | error = PTR_ERR(sdp->sd_qc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 581 | fs_err(sdp, "can't find local \"qc\" file: %d\n", error); |
| 582 | goto fail_ut_i; |
| 583 | } |
| 584 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 585 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 586 | pn = NULL; |
| 587 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 588 | ip = GFS2_I(sdp->sd_ir_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 589 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 590 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 591 | &sdp->sd_ir_gh); |
| 592 | if (error) { |
| 593 | fs_err(sdp, "can't lock local \"ir\" file: %d\n", error); |
| 594 | goto fail_qc_i; |
| 595 | } |
| 596 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 597 | ip = GFS2_I(sdp->sd_sc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 598 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 599 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 600 | &sdp->sd_sc_gh); |
| 601 | if (error) { |
| 602 | fs_err(sdp, "can't lock local \"sc\" file: %d\n", error); |
| 603 | goto fail_ir_gh; |
| 604 | } |
| 605 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 606 | ip = GFS2_I(sdp->sd_qc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 607 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 608 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 609 | &sdp->sd_qc_gh); |
| 610 | if (error) { |
| 611 | fs_err(sdp, "can't lock local \"qc\" file: %d\n", error); |
| 612 | goto fail_ut_gh; |
| 613 | } |
| 614 | |
| 615 | return 0; |
| 616 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 617 | fail_qc_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 618 | gfs2_glock_dq_uninit(&sdp->sd_qc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 619 | fail_ut_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 620 | gfs2_glock_dq_uninit(&sdp->sd_sc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 621 | fail_ir_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 622 | gfs2_glock_dq_uninit(&sdp->sd_ir_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 623 | fail_qc_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 624 | iput(sdp->sd_qc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 625 | fail_ut_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 626 | iput(sdp->sd_sc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 627 | fail_ir_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 628 | iput(sdp->sd_ir_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 629 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 630 | if (pn) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 631 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 632 | return error; |
| 633 | } |
| 634 | |
| 635 | static int init_threads(struct gfs2_sbd *sdp, int undo) |
| 636 | { |
| 637 | struct task_struct *p; |
| 638 | int error = 0; |
| 639 | |
| 640 | if (undo) |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 641 | goto fail_quotad; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 642 | |
| 643 | sdp->sd_log_flush_time = jiffies; |
| 644 | sdp->sd_jindex_refresh_time = jiffies; |
| 645 | |
| 646 | p = kthread_run(gfs2_logd, sdp, "gfs2_logd"); |
| 647 | error = IS_ERR(p); |
| 648 | if (error) { |
| 649 | fs_err(sdp, "can't start logd thread: %d\n", error); |
| 650 | return error; |
| 651 | } |
| 652 | sdp->sd_logd_process = p; |
| 653 | |
| 654 | sdp->sd_statfs_sync_time = jiffies; |
| 655 | sdp->sd_quota_sync_time = jiffies; |
| 656 | |
| 657 | p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad"); |
| 658 | error = IS_ERR(p); |
| 659 | if (error) { |
| 660 | fs_err(sdp, "can't start quotad thread: %d\n", error); |
| 661 | goto fail; |
| 662 | } |
| 663 | sdp->sd_quotad_process = p; |
| 664 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 665 | return 0; |
| 666 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 667 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 668 | fail_quotad: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 669 | kthread_stop(sdp->sd_quotad_process); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 670 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 671 | kthread_stop(sdp->sd_logd_process); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 672 | return error; |
| 673 | } |
| 674 | |
| 675 | /** |
| 676 | * fill_super - Read in superblock |
| 677 | * @sb: The VFS superblock |
| 678 | * @data: Mount options |
| 679 | * @silent: Don't complain if it's not a GFS2 filesystem |
| 680 | * |
| 681 | * Returns: errno |
| 682 | */ |
| 683 | |
| 684 | static int fill_super(struct super_block *sb, void *data, int silent) |
| 685 | { |
| 686 | struct gfs2_sbd *sdp; |
| 687 | struct gfs2_holder mount_gh; |
| 688 | int error; |
| 689 | |
| 690 | sdp = init_sbd(sb); |
| 691 | if (!sdp) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 692 | printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 693 | return -ENOMEM; |
| 694 | } |
| 695 | |
| 696 | error = gfs2_mount_args(sdp, (char *)data, 0); |
| 697 | if (error) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 698 | printk(KERN_WARNING "GFS2: can't parse mount arguments\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 699 | goto fail; |
| 700 | } |
| 701 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 702 | init_vfs(sb, SDF_NOATIME); |
| 703 | |
| 704 | /* Set up the buffer cache and fill in some fake block size values |
| 705 | to allow us to read-in the on-disk superblock. */ |
| 706 | sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK); |
| 707 | sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; |
| 708 | sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - |
| 709 | GFS2_BASIC_BLOCK_SHIFT; |
| 710 | sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 711 | |
| 712 | error = init_names(sdp, silent); |
| 713 | if (error) |
| 714 | goto fail; |
| 715 | |
| 716 | error = gfs2_sys_fs_add(sdp); |
| 717 | if (error) |
| 718 | goto fail; |
| 719 | |
| 720 | error = gfs2_lm_mount(sdp, silent); |
| 721 | if (error) |
| 722 | goto fail_sys; |
| 723 | |
| 724 | error = init_locking(sdp, &mount_gh, DO); |
| 725 | if (error) |
| 726 | goto fail_lm; |
| 727 | |
| 728 | error = init_sb(sdp, silent, DO); |
| 729 | if (error) |
| 730 | goto fail_locking; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 731 | |
| 732 | error = init_inodes(sdp, DO); |
| 733 | if (error) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 734 | goto fail_sb; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 735 | |
| 736 | error = init_per_node(sdp, DO); |
| 737 | if (error) |
| 738 | goto fail_inodes; |
| 739 | |
| 740 | error = gfs2_statfs_init(sdp); |
| 741 | if (error) { |
| 742 | fs_err(sdp, "can't initialize statfs subsystem: %d\n", error); |
| 743 | goto fail_per_node; |
| 744 | } |
| 745 | |
| 746 | error = init_threads(sdp, DO); |
| 747 | if (error) |
| 748 | goto fail_per_node; |
| 749 | |
| 750 | if (!(sb->s_flags & MS_RDONLY)) { |
| 751 | error = gfs2_make_fs_rw(sdp); |
| 752 | if (error) { |
| 753 | fs_err(sdp, "can't make FS RW: %d\n", error); |
| 754 | goto fail_threads; |
| 755 | } |
| 756 | } |
| 757 | |
| 758 | gfs2_glock_dq_uninit(&mount_gh); |
| 759 | |
| 760 | return 0; |
| 761 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 762 | fail_threads: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 763 | init_threads(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 764 | fail_per_node: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 765 | init_per_node(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 766 | fail_inodes: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 767 | init_inodes(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 768 | fail_sb: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 769 | init_sb(sdp, 0, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 770 | fail_locking: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 771 | init_locking(sdp, &mount_gh, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 772 | fail_lm: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 773 | gfs2_gl_hash_clear(sdp, WAIT); |
| 774 | gfs2_lm_unmount(sdp); |
| 775 | while (invalidate_inodes(sb)) |
| 776 | yield(); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 777 | fail_sys: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 778 | gfs2_sys_fs_del(sdp); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 779 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 780 | vfree(sdp); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 781 | sb->s_fs_info = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 782 | return error; |
| 783 | } |
| 784 | |
Andrew Morton | ccd6efd | 2006-06-30 02:16:34 -0700 | [diff] [blame] | 785 | static int gfs2_get_sb(struct file_system_type *fs_type, int flags, |
| 786 | const char *dev_name, void *data, struct vfsmount *mnt) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 787 | { |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 788 | struct super_block *sb; |
| 789 | struct gfs2_sbd *sdp; |
| 790 | int error = get_sb_bdev(fs_type, flags, dev_name, data, fill_super, mnt); |
| 791 | if (error) |
| 792 | goto out; |
| 793 | sb = mnt->mnt_sb; |
Steven Whitehouse | 26c1a57 | 2006-09-04 15:32:10 -0400 | [diff] [blame^] | 794 | sdp = sb->s_fs_info; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 795 | sdp->sd_gfs2mnt = mnt; |
| 796 | out: |
| 797 | return error; |
| 798 | } |
| 799 | |
| 800 | static int fill_super_meta(struct super_block *sb, struct super_block *new, |
| 801 | void *data, int silent) |
| 802 | { |
| 803 | struct gfs2_sbd *sdp = sb->s_fs_info; |
| 804 | struct inode *inode; |
| 805 | int error = 0; |
| 806 | |
| 807 | new->s_fs_info = sdp; |
| 808 | sdp->sd_vfs_meta = sb; |
| 809 | |
| 810 | init_vfs(new, SDF_NOATIME); |
| 811 | |
| 812 | /* Get the master inode */ |
| 813 | inode = igrab(sdp->sd_master_dir); |
| 814 | |
| 815 | new->s_root = d_alloc_root(inode); |
| 816 | if (!new->s_root) { |
| 817 | fs_err(sdp, "can't get root dentry\n"); |
| 818 | error = -ENOMEM; |
| 819 | iput(inode); |
| 820 | } |
| 821 | new->s_root->d_op = &gfs2_dops; |
| 822 | |
| 823 | return error; |
| 824 | } |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 825 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 826 | static int set_bdev_super(struct super_block *s, void *data) |
| 827 | { |
| 828 | s->s_bdev = data; |
| 829 | s->s_dev = s->s_bdev->bd_dev; |
| 830 | return 0; |
| 831 | } |
| 832 | |
| 833 | static int test_bdev_super(struct super_block *s, void *data) |
| 834 | { |
Steven Whitehouse | 26c1a57 | 2006-09-04 15:32:10 -0400 | [diff] [blame^] | 835 | return s->s_bdev == data; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 836 | } |
| 837 | |
| 838 | static struct super_block* get_gfs2_sb(const char *dev_name) |
| 839 | { |
| 840 | struct kstat stat; |
| 841 | struct nameidata nd; |
| 842 | struct file_system_type *fstype; |
| 843 | struct super_block *sb = NULL, *s; |
| 844 | struct list_head *l; |
| 845 | int error; |
| 846 | |
| 847 | error = path_lookup(dev_name, LOOKUP_FOLLOW, &nd); |
| 848 | if (error) { |
| 849 | printk(KERN_WARNING "GFS2: path_lookup on %s returned error\n", |
| 850 | dev_name); |
| 851 | goto out; |
| 852 | } |
| 853 | error = vfs_getattr(nd.mnt, nd.dentry, &stat); |
| 854 | |
| 855 | fstype = get_fs_type("gfs2"); |
| 856 | list_for_each(l, &fstype->fs_supers) { |
| 857 | s = list_entry(l, struct super_block, s_instances); |
| 858 | if ((S_ISBLK(stat.mode) && s->s_dev == stat.rdev) || |
| 859 | (S_ISDIR(stat.mode) && s == nd.dentry->d_inode->i_sb)) { |
| 860 | sb = s; |
| 861 | goto free_nd; |
| 862 | } |
| 863 | } |
| 864 | |
| 865 | printk(KERN_WARNING "GFS2: Unrecognized block device or " |
| 866 | "mount point %s", dev_name); |
| 867 | |
| 868 | free_nd: |
| 869 | path_release(&nd); |
| 870 | out: |
| 871 | return sb; |
| 872 | } |
| 873 | |
| 874 | static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags, |
| 875 | const char *dev_name, void *data, struct vfsmount *mnt) |
| 876 | { |
| 877 | int error = 0; |
| 878 | struct super_block *sb = NULL, *new; |
| 879 | struct gfs2_sbd *sdp; |
| 880 | char *gfs2mnt = NULL; |
| 881 | |
| 882 | sb = get_gfs2_sb(dev_name); |
| 883 | if (!sb) { |
| 884 | printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n"); |
| 885 | error = -ENOENT; |
| 886 | goto error; |
| 887 | } |
| 888 | sdp = (struct gfs2_sbd*) sb->s_fs_info; |
| 889 | if (sdp->sd_vfs_meta) { |
| 890 | printk(KERN_WARNING "GFS2: gfs2meta mount already exists\n"); |
| 891 | error = -EBUSY; |
| 892 | goto error; |
| 893 | } |
| 894 | mutex_lock(&sb->s_bdev->bd_mount_mutex); |
| 895 | new = sget(fs_type, test_bdev_super, set_bdev_super, sb->s_bdev); |
| 896 | mutex_unlock(&sb->s_bdev->bd_mount_mutex); |
| 897 | if (IS_ERR(new)) { |
| 898 | error = PTR_ERR(new); |
| 899 | goto error; |
| 900 | } |
| 901 | module_put(fs_type->owner); |
| 902 | new->s_flags = flags; |
| 903 | strlcpy(new->s_id, sb->s_id, sizeof(new->s_id)); |
| 904 | sb_set_blocksize(new, sb->s_blocksize); |
| 905 | error = fill_super_meta(sb, new, data, flags & MS_SILENT ? 1 : 0); |
| 906 | if (error) { |
| 907 | up_write(&new->s_umount); |
| 908 | deactivate_super(new); |
| 909 | goto error; |
| 910 | } |
| 911 | |
| 912 | new->s_flags |= MS_ACTIVE; |
| 913 | |
| 914 | /* Grab a reference to the gfs2 mount point */ |
| 915 | atomic_inc(&sdp->sd_gfs2mnt->mnt_count); |
| 916 | return simple_set_mnt(mnt, new); |
| 917 | error: |
| 918 | if (gfs2mnt) |
| 919 | kfree(gfs2mnt); |
| 920 | return error; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 921 | } |
| 922 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 923 | static void gfs2_kill_sb(struct super_block *sb) |
| 924 | { |
| 925 | kill_block_super(sb); |
| 926 | } |
| 927 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 928 | static void gfs2_kill_sb_meta(struct super_block *sb) |
| 929 | { |
| 930 | struct gfs2_sbd *sdp = sb->s_fs_info; |
| 931 | generic_shutdown_super(sb); |
| 932 | sdp->sd_vfs_meta = NULL; |
| 933 | atomic_dec(&sdp->sd_gfs2mnt->mnt_count); |
| 934 | } |
| 935 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 936 | struct file_system_type gfs2_fs_type = { |
| 937 | .name = "gfs2", |
| 938 | .fs_flags = FS_REQUIRES_DEV, |
| 939 | .get_sb = gfs2_get_sb, |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 940 | .kill_sb = gfs2_kill_sb, |
| 941 | .owner = THIS_MODULE, |
| 942 | }; |
| 943 | |
| 944 | struct file_system_type gfs2meta_fs_type = { |
| 945 | .name = "gfs2meta", |
| 946 | .fs_flags = FS_REQUIRES_DEV, |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 947 | .get_sb = gfs2_get_sb_meta, |
| 948 | .kill_sb = gfs2_kill_sb_meta, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 949 | .owner = THIS_MODULE, |
| 950 | }; |
| 951 | |