David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
| 3 | * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. |
| 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 |
| 7 | * of the GNU General Public License v.2. |
| 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> |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 18 | #include <linux/gfs2_ondisk.h> |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 19 | #include <asm/semaphore.h> |
| 20 | |
| 21 | #include "gfs2.h" |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 22 | #include "lm_interface.h" |
| 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" |
| 30 | #include "ops_export.h" |
| 31 | #include "ops_fstype.h" |
| 32 | #include "ops_super.h" |
| 33 | #include "recovery.h" |
| 34 | #include "rgrp.h" |
| 35 | #include "super.h" |
| 36 | #include "unlinked.h" |
| 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 | |
| 43 | static struct gfs2_sbd *init_sbd(struct super_block *sb) |
| 44 | { |
| 45 | struct gfs2_sbd *sdp; |
| 46 | unsigned int x; |
| 47 | |
| 48 | sdp = vmalloc(sizeof(struct gfs2_sbd)); |
| 49 | if (!sdp) |
| 50 | return NULL; |
| 51 | |
| 52 | memset(sdp, 0, sizeof(struct gfs2_sbd)); |
| 53 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 54 | sb->s_fs_info = sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 55 | sdp->sd_vfs = sb; |
| 56 | |
| 57 | gfs2_tune_init(&sdp->sd_tune); |
| 58 | |
| 59 | for (x = 0; x < GFS2_GL_HASH_SIZE; x++) { |
| 60 | sdp->sd_gl_hash[x].hb_lock = RW_LOCK_UNLOCKED; |
| 61 | INIT_LIST_HEAD(&sdp->sd_gl_hash[x].hb_list); |
| 62 | } |
| 63 | INIT_LIST_HEAD(&sdp->sd_reclaim_list); |
| 64 | spin_lock_init(&sdp->sd_reclaim_lock); |
| 65 | init_waitqueue_head(&sdp->sd_reclaim_wq); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 66 | mutex_init(&sdp->sd_invalidate_inodes_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 67 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 68 | mutex_init(&sdp->sd_inum_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 69 | spin_lock_init(&sdp->sd_statfs_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 70 | mutex_init(&sdp->sd_statfs_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 71 | |
| 72 | spin_lock_init(&sdp->sd_rindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 73 | mutex_init(&sdp->sd_rindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 74 | INIT_LIST_HEAD(&sdp->sd_rindex_list); |
| 75 | INIT_LIST_HEAD(&sdp->sd_rindex_mru_list); |
| 76 | INIT_LIST_HEAD(&sdp->sd_rindex_recent_list); |
| 77 | |
| 78 | INIT_LIST_HEAD(&sdp->sd_jindex_list); |
| 79 | spin_lock_init(&sdp->sd_jindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 80 | mutex_init(&sdp->sd_jindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 81 | |
| 82 | INIT_LIST_HEAD(&sdp->sd_unlinked_list); |
| 83 | spin_lock_init(&sdp->sd_unlinked_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 84 | mutex_init(&sdp->sd_unlinked_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 85 | |
| 86 | INIT_LIST_HEAD(&sdp->sd_quota_list); |
| 87 | spin_lock_init(&sdp->sd_quota_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 88 | mutex_init(&sdp->sd_quota_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 89 | |
| 90 | spin_lock_init(&sdp->sd_log_lock); |
| 91 | init_waitqueue_head(&sdp->sd_log_trans_wq); |
| 92 | init_waitqueue_head(&sdp->sd_log_flush_wq); |
| 93 | |
| 94 | INIT_LIST_HEAD(&sdp->sd_log_le_gl); |
| 95 | INIT_LIST_HEAD(&sdp->sd_log_le_buf); |
| 96 | INIT_LIST_HEAD(&sdp->sd_log_le_revoke); |
| 97 | INIT_LIST_HEAD(&sdp->sd_log_le_rg); |
| 98 | INIT_LIST_HEAD(&sdp->sd_log_le_databuf); |
| 99 | |
| 100 | INIT_LIST_HEAD(&sdp->sd_log_blks_list); |
| 101 | init_waitqueue_head(&sdp->sd_log_blks_wait); |
| 102 | |
| 103 | INIT_LIST_HEAD(&sdp->sd_ail1_list); |
| 104 | INIT_LIST_HEAD(&sdp->sd_ail2_list); |
| 105 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 106 | mutex_init(&sdp->sd_log_flush_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 107 | INIT_LIST_HEAD(&sdp->sd_log_flush_list); |
| 108 | |
| 109 | INIT_LIST_HEAD(&sdp->sd_revoke_list); |
| 110 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 111 | mutex_init(&sdp->sd_freeze_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 112 | |
| 113 | return sdp; |
| 114 | } |
| 115 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 116 | static void init_vfs(struct super_block *sb, unsigned noatime) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 117 | { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 118 | struct gfs2_sbd *sdp = sb->s_fs_info; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 119 | |
| 120 | sb->s_magic = GFS2_MAGIC; |
| 121 | sb->s_op = &gfs2_super_ops; |
| 122 | sb->s_export_op = &gfs2_export_ops; |
| 123 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
| 124 | |
| 125 | if (sb->s_flags & (MS_NOATIME | MS_NODIRATIME)) |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 126 | set_bit(noatime, &sdp->sd_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 127 | |
| 128 | /* Don't let the VFS update atimes. GFS2 handles this itself. */ |
| 129 | sb->s_flags |= MS_NOATIME | MS_NODIRATIME; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 130 | } |
| 131 | |
| 132 | static int init_names(struct gfs2_sbd *sdp, int silent) |
| 133 | { |
| 134 | struct gfs2_sb *sb = NULL; |
| 135 | char *proto, *table; |
| 136 | int error = 0; |
| 137 | |
| 138 | proto = sdp->sd_args.ar_lockproto; |
| 139 | table = sdp->sd_args.ar_locktable; |
| 140 | |
| 141 | /* Try to autodetect */ |
| 142 | |
| 143 | if (!proto[0] || !table[0]) { |
| 144 | struct buffer_head *bh; |
| 145 | bh = sb_getblk(sdp->sd_vfs, |
| 146 | GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); |
| 147 | lock_buffer(bh); |
| 148 | clear_buffer_uptodate(bh); |
| 149 | clear_buffer_dirty(bh); |
| 150 | unlock_buffer(bh); |
| 151 | ll_rw_block(READ, 1, &bh); |
| 152 | wait_on_buffer(bh); |
| 153 | |
| 154 | if (!buffer_uptodate(bh)) { |
| 155 | brelse(bh); |
| 156 | return -EIO; |
| 157 | } |
| 158 | |
| 159 | sb = kmalloc(sizeof(struct gfs2_sb), GFP_KERNEL); |
| 160 | if (!sb) { |
| 161 | brelse(bh); |
| 162 | return -ENOMEM; |
| 163 | } |
| 164 | gfs2_sb_in(sb, bh->b_data); |
| 165 | brelse(bh); |
| 166 | |
| 167 | error = gfs2_check_sb(sdp, sb, silent); |
| 168 | if (error) |
| 169 | goto out; |
| 170 | |
| 171 | if (!proto[0]) |
| 172 | proto = sb->sb_lockproto; |
| 173 | if (!table[0]) |
| 174 | table = sb->sb_locktable; |
| 175 | } |
| 176 | |
| 177 | if (!table[0]) |
| 178 | table = sdp->sd_vfs->s_id; |
| 179 | |
| 180 | snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto); |
| 181 | snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table); |
| 182 | |
| 183 | out: |
| 184 | kfree(sb); |
| 185 | |
| 186 | return error; |
| 187 | } |
| 188 | |
| 189 | static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, |
| 190 | int undo) |
| 191 | { |
| 192 | struct task_struct *p; |
| 193 | int error = 0; |
| 194 | |
| 195 | if (undo) |
| 196 | goto fail_trans; |
| 197 | |
| 198 | p = kthread_run(gfs2_scand, sdp, "gfs2_scand"); |
| 199 | error = IS_ERR(p); |
| 200 | if (error) { |
| 201 | fs_err(sdp, "can't start scand thread: %d\n", error); |
| 202 | return error; |
| 203 | } |
| 204 | sdp->sd_scand_process = p; |
| 205 | |
| 206 | for (sdp->sd_glockd_num = 0; |
| 207 | sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd; |
| 208 | sdp->sd_glockd_num++) { |
| 209 | p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd"); |
| 210 | error = IS_ERR(p); |
| 211 | if (error) { |
| 212 | fs_err(sdp, "can't start glockd thread: %d\n", error); |
| 213 | goto fail; |
| 214 | } |
| 215 | sdp->sd_glockd_process[sdp->sd_glockd_num] = p; |
| 216 | } |
| 217 | |
| 218 | error = gfs2_glock_nq_num(sdp, |
| 219 | GFS2_MOUNT_LOCK, &gfs2_nondisk_glops, |
| 220 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE, |
| 221 | mount_gh); |
| 222 | if (error) { |
| 223 | fs_err(sdp, "can't acquire mount glock: %d\n", error); |
| 224 | goto fail; |
| 225 | } |
| 226 | |
| 227 | error = gfs2_glock_nq_num(sdp, |
| 228 | GFS2_LIVE_LOCK, &gfs2_nondisk_glops, |
| 229 | LM_ST_SHARED, |
| 230 | LM_FLAG_NOEXP | GL_EXACT | GL_NEVER_RECURSE, |
| 231 | &sdp->sd_live_gh); |
| 232 | if (error) { |
| 233 | fs_err(sdp, "can't acquire live glock: %d\n", error); |
| 234 | goto fail_mount; |
| 235 | } |
| 236 | |
| 237 | error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops, |
| 238 | CREATE, &sdp->sd_rename_gl); |
| 239 | if (error) { |
| 240 | fs_err(sdp, "can't create rename glock: %d\n", error); |
| 241 | goto fail_live; |
| 242 | } |
| 243 | |
| 244 | error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops, |
| 245 | CREATE, &sdp->sd_trans_gl); |
| 246 | if (error) { |
| 247 | fs_err(sdp, "can't create transaction glock: %d\n", error); |
| 248 | goto fail_rename; |
| 249 | } |
| 250 | set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags); |
| 251 | |
| 252 | return 0; |
| 253 | |
| 254 | fail_trans: |
| 255 | gfs2_glock_put(sdp->sd_trans_gl); |
| 256 | |
| 257 | fail_rename: |
| 258 | gfs2_glock_put(sdp->sd_rename_gl); |
| 259 | |
| 260 | fail_live: |
| 261 | gfs2_glock_dq_uninit(&sdp->sd_live_gh); |
| 262 | |
| 263 | fail_mount: |
| 264 | gfs2_glock_dq_uninit(mount_gh); |
| 265 | |
| 266 | fail: |
| 267 | while (sdp->sd_glockd_num--) |
| 268 | kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]); |
| 269 | |
| 270 | kthread_stop(sdp->sd_scand_process); |
| 271 | |
| 272 | return error; |
| 273 | } |
| 274 | |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 275 | static struct inode *gfs2_lookup_root(struct gfs2_sbd *sdp, |
| 276 | const struct gfs2_inum *inum) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 277 | { |
| 278 | int error; |
| 279 | struct gfs2_glock *gl; |
| 280 | struct gfs2_inode *ip; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 281 | struct inode *inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 282 | |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 283 | error = gfs2_glock_get(sdp, inum->no_addr, |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 284 | &gfs2_inode_glops, CREATE, &gl); |
| 285 | if (!error) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 286 | error = gfs2_inode_get(gl, inum, CREATE, &ip); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 287 | if (!error) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 288 | gfs2_inode_min_init(ip, DT_DIR); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 289 | inode = gfs2_ip2v(ip); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 290 | gfs2_inode_put(ip); |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 291 | gfs2_glock_put(gl); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 292 | return inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 293 | } |
| 294 | gfs2_glock_put(gl); |
| 295 | } |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 296 | return ERR_PTR(error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 297 | } |
| 298 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 299 | static int init_sb(struct gfs2_sbd *sdp, int silent, int undo) |
| 300 | { |
| 301 | struct super_block *sb = sdp->sd_vfs; |
| 302 | struct gfs2_holder sb_gh; |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 303 | struct gfs2_inum *inum; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 304 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 305 | int error = 0; |
| 306 | |
| 307 | if (undo) { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 308 | return 0; |
| 309 | } |
| 310 | |
| 311 | error = gfs2_glock_nq_num(sdp, |
| 312 | GFS2_SB_LOCK, &gfs2_meta_glops, |
| 313 | LM_ST_SHARED, 0, &sb_gh); |
| 314 | if (error) { |
| 315 | fs_err(sdp, "can't acquire superblock glock: %d\n", error); |
| 316 | return error; |
| 317 | } |
| 318 | |
| 319 | error = gfs2_read_sb(sdp, sb_gh.gh_gl, silent); |
| 320 | if (error) { |
| 321 | fs_err(sdp, "can't read superblock: %d\n", error); |
| 322 | goto out; |
| 323 | } |
| 324 | |
| 325 | /* Set up the buffer cache and SB for real */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 326 | if (sdp->sd_sb.sb_bsize < bdev_hardsect_size(sb->s_bdev)) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 327 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 328 | fs_err(sdp, "FS block size (%u) is too small for device " |
| 329 | "block size (%u)\n", |
| 330 | sdp->sd_sb.sb_bsize, bdev_hardsect_size(sb->s_bdev)); |
| 331 | goto out; |
| 332 | } |
| 333 | if (sdp->sd_sb.sb_bsize > PAGE_SIZE) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 334 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 335 | fs_err(sdp, "FS block size (%u) is too big for machine " |
| 336 | "page size (%u)\n", |
| 337 | sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE); |
| 338 | goto out; |
| 339 | } |
| 340 | |
| 341 | /* Get rid of buffers from the original block size */ |
| 342 | sb_gh.gh_gl->gl_ops->go_inval(sb_gh.gh_gl, DIO_METADATA | DIO_DATA); |
| 343 | sb_gh.gh_gl->gl_aspace->i_blkbits = sdp->sd_sb.sb_bsize_shift; |
| 344 | |
| 345 | sb_set_blocksize(sb, sdp->sd_sb.sb_bsize); |
| 346 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 347 | /* Get the root inode */ |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 348 | inum = &sdp->sd_sb.sb_root_dir; |
| 349 | if (sb->s_type == &gfs2meta_fs_type) |
| 350 | inum = &sdp->sd_sb.sb_master_dir; |
| 351 | inode = gfs2_lookup_root(sdp, inum); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 352 | if (IS_ERR(inode)) { |
| 353 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 354 | fs_err(sdp, "can't read in root inode: %d\n", error); |
| 355 | goto out; |
| 356 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 357 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 358 | sb->s_root = d_alloc_root(inode); |
| 359 | if (!sb->s_root) { |
| 360 | fs_err(sdp, "can't get root dentry\n"); |
| 361 | error = -ENOMEM; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 362 | iput(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 363 | } |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 364 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 365 | gfs2_glock_dq_uninit(&sb_gh); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 366 | return error; |
| 367 | } |
| 368 | |
| 369 | static int init_journal(struct gfs2_sbd *sdp, int undo) |
| 370 | { |
| 371 | struct gfs2_holder ji_gh; |
| 372 | struct task_struct *p; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 373 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 374 | int jindex = 1; |
| 375 | int error = 0; |
| 376 | |
| 377 | if (undo) { |
| 378 | jindex = 0; |
| 379 | goto fail_recoverd; |
| 380 | } |
| 381 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 382 | sdp->sd_jindex = gfs2_lookup_simple(sdp->sd_master_dir, "jindex"); |
| 383 | if (IS_ERR(sdp->sd_jindex)) { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 384 | fs_err(sdp, "can't lookup journal index: %d\n", error); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 385 | return PTR_ERR(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 386 | } |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 387 | ip = sdp->sd_jindex->u.generic_ip; |
| 388 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 389 | |
| 390 | /* Load in the journal index special file */ |
| 391 | |
| 392 | error = gfs2_jindex_hold(sdp, &ji_gh); |
| 393 | if (error) { |
| 394 | fs_err(sdp, "can't read journal index: %d\n", error); |
| 395 | goto fail; |
| 396 | } |
| 397 | |
| 398 | error = -EINVAL; |
| 399 | if (!gfs2_jindex_size(sdp)) { |
| 400 | fs_err(sdp, "no journals!\n"); |
| 401 | goto fail_jindex; |
| 402 | } |
| 403 | |
| 404 | if (sdp->sd_args.ar_spectator) { |
| 405 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0); |
| 406 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 407 | } else { |
| 408 | if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) { |
| 409 | fs_err(sdp, "can't mount journal #%u\n", |
| 410 | sdp->sd_lockstruct.ls_jid); |
| 411 | fs_err(sdp, "there are only %u journals (0 - %u)\n", |
| 412 | gfs2_jindex_size(sdp), |
| 413 | gfs2_jindex_size(sdp) - 1); |
| 414 | goto fail_jindex; |
| 415 | } |
| 416 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid); |
| 417 | |
| 418 | error = gfs2_glock_nq_num(sdp, |
| 419 | sdp->sd_lockstruct.ls_jid, |
| 420 | &gfs2_journal_glops, |
| 421 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP, |
| 422 | &sdp->sd_journal_gh); |
| 423 | if (error) { |
| 424 | fs_err(sdp, "can't acquire journal glock: %d\n", error); |
| 425 | goto fail_jindex; |
| 426 | } |
| 427 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 428 | ip = sdp->sd_jdesc->jd_inode->u.generic_ip; |
| 429 | error = gfs2_glock_nq_init(ip->i_gl, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 430 | LM_ST_SHARED, |
| 431 | LM_FLAG_NOEXP | GL_EXACT, |
| 432 | &sdp->sd_jinode_gh); |
| 433 | if (error) { |
| 434 | fs_err(sdp, "can't acquire journal inode glock: %d\n", |
| 435 | error); |
| 436 | goto fail_journal_gh; |
| 437 | } |
| 438 | |
| 439 | error = gfs2_jdesc_check(sdp->sd_jdesc); |
| 440 | if (error) { |
| 441 | fs_err(sdp, "my journal (%u) is bad: %d\n", |
| 442 | sdp->sd_jdesc->jd_jid, error); |
| 443 | goto fail_jinode_gh; |
| 444 | } |
| 445 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 446 | } |
| 447 | |
| 448 | if (sdp->sd_lockstruct.ls_first) { |
| 449 | unsigned int x; |
| 450 | for (x = 0; x < sdp->sd_journals; x++) { |
| 451 | error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x), |
| 452 | WAIT); |
| 453 | if (error) { |
| 454 | fs_err(sdp, "error recovering journal %u: %d\n", |
| 455 | x, error); |
| 456 | goto fail_jinode_gh; |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | gfs2_lm_others_may_mount(sdp); |
| 461 | } else if (!sdp->sd_args.ar_spectator) { |
| 462 | error = gfs2_recover_journal(sdp->sd_jdesc, WAIT); |
| 463 | if (error) { |
| 464 | fs_err(sdp, "error recovering my journal: %d\n", error); |
| 465 | goto fail_jinode_gh; |
| 466 | } |
| 467 | } |
| 468 | |
| 469 | set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags); |
| 470 | gfs2_glock_dq_uninit(&ji_gh); |
| 471 | jindex = 0; |
| 472 | |
| 473 | /* Disown my Journal glock */ |
| 474 | |
| 475 | sdp->sd_journal_gh.gh_owner = NULL; |
| 476 | sdp->sd_jinode_gh.gh_owner = NULL; |
| 477 | |
| 478 | p = kthread_run(gfs2_recoverd, sdp, "gfs2_recoverd"); |
| 479 | error = IS_ERR(p); |
| 480 | if (error) { |
| 481 | fs_err(sdp, "can't start recoverd thread: %d\n", error); |
| 482 | goto fail_jinode_gh; |
| 483 | } |
| 484 | sdp->sd_recoverd_process = p; |
| 485 | |
| 486 | return 0; |
| 487 | |
| 488 | fail_recoverd: |
| 489 | kthread_stop(sdp->sd_recoverd_process); |
| 490 | |
| 491 | fail_jinode_gh: |
| 492 | if (!sdp->sd_args.ar_spectator) |
| 493 | gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); |
| 494 | |
| 495 | fail_journal_gh: |
| 496 | if (!sdp->sd_args.ar_spectator) |
| 497 | gfs2_glock_dq_uninit(&sdp->sd_journal_gh); |
| 498 | |
| 499 | fail_jindex: |
| 500 | gfs2_jindex_free(sdp); |
| 501 | if (jindex) |
| 502 | gfs2_glock_dq_uninit(&ji_gh); |
| 503 | |
| 504 | fail: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 505 | iput(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 506 | |
| 507 | return error; |
| 508 | } |
| 509 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 510 | |
| 511 | static int init_inodes(struct gfs2_sbd *sdp, int undo) |
| 512 | { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 513 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 514 | struct gfs2_inode *ip; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 515 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 516 | |
| 517 | if (undo) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 518 | goto fail_qinode; |
| 519 | |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 520 | inode = gfs2_lookup_root(sdp, &sdp->sd_sb.sb_master_dir); |
| 521 | if (IS_ERR(inode)) { |
| 522 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 523 | fs_err(sdp, "can't read in master directory: %d\n", error); |
| 524 | goto fail; |
| 525 | } |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 526 | sdp->sd_master_dir = inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 527 | |
| 528 | error = init_journal(sdp, undo); |
| 529 | if (error) |
| 530 | goto fail_master; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 531 | |
| 532 | /* Read in the master inode number inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 533 | sdp->sd_inum_inode = gfs2_lookup_simple(sdp->sd_master_dir, "inum"); |
| 534 | if (IS_ERR(sdp->sd_inum_inode)) { |
| 535 | error = PTR_ERR(sdp->sd_inum_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 536 | fs_err(sdp, "can't read in inum inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 537 | goto fail_journal; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 538 | } |
| 539 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 540 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 541 | /* Read in the master statfs inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 542 | sdp->sd_statfs_inode = gfs2_lookup_simple(sdp->sd_master_dir, "statfs"); |
| 543 | if (IS_ERR(sdp->sd_statfs_inode)) { |
| 544 | error = PTR_ERR(sdp->sd_statfs_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 545 | fs_err(sdp, "can't read in statfs inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 546 | goto fail_inum; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 547 | } |
| 548 | |
| 549 | /* Read in the resource index inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 550 | sdp->sd_rindex = gfs2_lookup_simple(sdp->sd_master_dir, "rindex"); |
| 551 | if (IS_ERR(sdp->sd_rindex)) { |
| 552 | error = PTR_ERR(sdp->sd_rindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 553 | fs_err(sdp, "can't get resource index inode: %d\n", error); |
| 554 | goto fail_statfs; |
| 555 | } |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 556 | ip = sdp->sd_rindex->u.generic_ip; |
| 557 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
| 558 | sdp->sd_rindex_vn = ip->i_gl->gl_vn - 1; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 559 | |
| 560 | /* Read in the quota inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 561 | sdp->sd_quota_inode = gfs2_lookup_simple(sdp->sd_master_dir, "quota"); |
| 562 | if (IS_ERR(sdp->sd_quota_inode)) { |
| 563 | error = PTR_ERR(sdp->sd_quota_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 564 | fs_err(sdp, "can't get quota file inode: %d\n", error); |
| 565 | goto fail_rindex; |
| 566 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 567 | return 0; |
| 568 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 569 | fail_qinode: |
| 570 | iput(sdp->sd_quota_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 571 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 572 | fail_rindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 573 | gfs2_clear_rgrpd(sdp); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 574 | iput(sdp->sd_rindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 575 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 576 | fail_statfs: |
| 577 | iput(sdp->sd_statfs_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 578 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 579 | fail_inum: |
| 580 | iput(sdp->sd_inum_inode); |
| 581 | fail_journal: |
| 582 | init_journal(sdp, UNDO); |
| 583 | fail_master: |
| 584 | iput(sdp->sd_master_dir); |
| 585 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 586 | return error; |
| 587 | } |
| 588 | |
| 589 | static int init_per_node(struct gfs2_sbd *sdp, int undo) |
| 590 | { |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 591 | struct inode *pn = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 592 | char buf[30]; |
| 593 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 594 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 595 | |
| 596 | if (sdp->sd_args.ar_spectator) |
| 597 | return 0; |
| 598 | |
| 599 | if (undo) |
| 600 | goto fail_qc_gh; |
| 601 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 602 | pn = gfs2_lookup_simple(sdp->sd_master_dir, "per_node"); |
| 603 | if (IS_ERR(pn)) { |
| 604 | error = PTR_ERR(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 605 | fs_err(sdp, "can't find per_node directory: %d\n", error); |
| 606 | return error; |
| 607 | } |
| 608 | |
| 609 | sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 610 | sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf); |
| 611 | if (IS_ERR(sdp->sd_ir_inode)) { |
| 612 | error = PTR_ERR(sdp->sd_ir_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 613 | fs_err(sdp, "can't find local \"ir\" file: %d\n", error); |
| 614 | goto fail; |
| 615 | } |
| 616 | |
| 617 | sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 618 | sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); |
| 619 | if (IS_ERR(sdp->sd_sc_inode)) { |
| 620 | error = PTR_ERR(sdp->sd_sc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 621 | fs_err(sdp, "can't find local \"sc\" file: %d\n", error); |
| 622 | goto fail_ir_i; |
| 623 | } |
| 624 | |
| 625 | sprintf(buf, "unlinked_tag%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 626 | sdp->sd_ut_inode = gfs2_lookup_simple(pn, buf); |
| 627 | if (IS_ERR(sdp->sd_ut_inode)) { |
| 628 | error = PTR_ERR(sdp->sd_ut_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 629 | fs_err(sdp, "can't find local \"ut\" file: %d\n", error); |
| 630 | goto fail_sc_i; |
| 631 | } |
| 632 | |
| 633 | sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame^] | 634 | sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf); |
| 635 | if (IS_ERR(sdp->sd_qc_inode)) { |
| 636 | error = PTR_ERR(sdp->sd_qc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 637 | fs_err(sdp, "can't find local \"qc\" file: %d\n", error); |
| 638 | goto fail_ut_i; |
| 639 | } |
| 640 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 641 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 642 | pn = NULL; |
| 643 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 644 | ip = sdp->sd_ir_inode->u.generic_ip; |
| 645 | error = gfs2_glock_nq_init(ip->i_gl, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 646 | LM_ST_EXCLUSIVE, GL_NEVER_RECURSE, |
| 647 | &sdp->sd_ir_gh); |
| 648 | if (error) { |
| 649 | fs_err(sdp, "can't lock local \"ir\" file: %d\n", error); |
| 650 | goto fail_qc_i; |
| 651 | } |
| 652 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 653 | ip = sdp->sd_sc_inode->u.generic_ip; |
| 654 | error = gfs2_glock_nq_init(ip->i_gl, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 655 | LM_ST_EXCLUSIVE, GL_NEVER_RECURSE, |
| 656 | &sdp->sd_sc_gh); |
| 657 | if (error) { |
| 658 | fs_err(sdp, "can't lock local \"sc\" file: %d\n", error); |
| 659 | goto fail_ir_gh; |
| 660 | } |
| 661 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 662 | ip = sdp->sd_ut_inode->u.generic_ip; |
| 663 | error = gfs2_glock_nq_init(ip->i_gl, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 664 | LM_ST_EXCLUSIVE, GL_NEVER_RECURSE, |
| 665 | &sdp->sd_ut_gh); |
| 666 | if (error) { |
| 667 | fs_err(sdp, "can't lock local \"ut\" file: %d\n", error); |
| 668 | goto fail_sc_gh; |
| 669 | } |
| 670 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 671 | ip = sdp->sd_qc_inode->u.generic_ip; |
| 672 | error = gfs2_glock_nq_init(ip->i_gl, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 673 | LM_ST_EXCLUSIVE, GL_NEVER_RECURSE, |
| 674 | &sdp->sd_qc_gh); |
| 675 | if (error) { |
| 676 | fs_err(sdp, "can't lock local \"qc\" file: %d\n", error); |
| 677 | goto fail_ut_gh; |
| 678 | } |
| 679 | |
| 680 | return 0; |
| 681 | |
| 682 | fail_qc_gh: |
| 683 | gfs2_glock_dq_uninit(&sdp->sd_qc_gh); |
| 684 | |
| 685 | fail_ut_gh: |
| 686 | gfs2_glock_dq_uninit(&sdp->sd_ut_gh); |
| 687 | |
| 688 | fail_sc_gh: |
| 689 | gfs2_glock_dq_uninit(&sdp->sd_sc_gh); |
| 690 | |
| 691 | fail_ir_gh: |
| 692 | gfs2_glock_dq_uninit(&sdp->sd_ir_gh); |
| 693 | |
| 694 | fail_qc_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 695 | iput(sdp->sd_qc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 696 | |
| 697 | fail_ut_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 698 | iput(sdp->sd_ut_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 699 | |
| 700 | fail_sc_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 701 | iput(sdp->sd_sc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 702 | |
| 703 | fail_ir_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 704 | iput(sdp->sd_ir_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 705 | |
| 706 | fail: |
| 707 | if (pn) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 708 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 709 | return error; |
| 710 | } |
| 711 | |
| 712 | static int init_threads(struct gfs2_sbd *sdp, int undo) |
| 713 | { |
| 714 | struct task_struct *p; |
| 715 | int error = 0; |
| 716 | |
| 717 | if (undo) |
| 718 | goto fail_inoded; |
| 719 | |
| 720 | sdp->sd_log_flush_time = jiffies; |
| 721 | sdp->sd_jindex_refresh_time = jiffies; |
| 722 | |
| 723 | p = kthread_run(gfs2_logd, sdp, "gfs2_logd"); |
| 724 | error = IS_ERR(p); |
| 725 | if (error) { |
| 726 | fs_err(sdp, "can't start logd thread: %d\n", error); |
| 727 | return error; |
| 728 | } |
| 729 | sdp->sd_logd_process = p; |
| 730 | |
| 731 | sdp->sd_statfs_sync_time = jiffies; |
| 732 | sdp->sd_quota_sync_time = jiffies; |
| 733 | |
| 734 | p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad"); |
| 735 | error = IS_ERR(p); |
| 736 | if (error) { |
| 737 | fs_err(sdp, "can't start quotad thread: %d\n", error); |
| 738 | goto fail; |
| 739 | } |
| 740 | sdp->sd_quotad_process = p; |
| 741 | |
| 742 | p = kthread_run(gfs2_inoded, sdp, "gfs2_inoded"); |
| 743 | error = IS_ERR(p); |
| 744 | if (error) { |
| 745 | fs_err(sdp, "can't start inoded thread: %d\n", error); |
| 746 | goto fail_quotad; |
| 747 | } |
| 748 | sdp->sd_inoded_process = p; |
| 749 | |
| 750 | return 0; |
| 751 | |
| 752 | fail_inoded: |
| 753 | kthread_stop(sdp->sd_inoded_process); |
| 754 | |
| 755 | fail_quotad: |
| 756 | kthread_stop(sdp->sd_quotad_process); |
| 757 | |
| 758 | fail: |
| 759 | kthread_stop(sdp->sd_logd_process); |
| 760 | |
| 761 | return error; |
| 762 | } |
| 763 | |
| 764 | /** |
| 765 | * fill_super - Read in superblock |
| 766 | * @sb: The VFS superblock |
| 767 | * @data: Mount options |
| 768 | * @silent: Don't complain if it's not a GFS2 filesystem |
| 769 | * |
| 770 | * Returns: errno |
| 771 | */ |
| 772 | |
| 773 | static int fill_super(struct super_block *sb, void *data, int silent) |
| 774 | { |
| 775 | struct gfs2_sbd *sdp; |
| 776 | struct gfs2_holder mount_gh; |
| 777 | int error; |
| 778 | |
| 779 | sdp = init_sbd(sb); |
| 780 | if (!sdp) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 781 | printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 782 | return -ENOMEM; |
| 783 | } |
| 784 | |
| 785 | error = gfs2_mount_args(sdp, (char *)data, 0); |
| 786 | if (error) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 787 | printk(KERN_WARNING "GFS2: can't parse mount arguments\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 788 | goto fail; |
| 789 | } |
| 790 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 791 | init_vfs(sb, SDF_NOATIME); |
| 792 | |
| 793 | /* Set up the buffer cache and fill in some fake block size values |
| 794 | to allow us to read-in the on-disk superblock. */ |
| 795 | sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK); |
| 796 | sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; |
| 797 | sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - |
| 798 | GFS2_BASIC_BLOCK_SHIFT; |
| 799 | sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 800 | |
| 801 | error = init_names(sdp, silent); |
| 802 | if (error) |
| 803 | goto fail; |
| 804 | |
| 805 | error = gfs2_sys_fs_add(sdp); |
| 806 | if (error) |
| 807 | goto fail; |
| 808 | |
| 809 | error = gfs2_lm_mount(sdp, silent); |
| 810 | if (error) |
| 811 | goto fail_sys; |
| 812 | |
| 813 | error = init_locking(sdp, &mount_gh, DO); |
| 814 | if (error) |
| 815 | goto fail_lm; |
| 816 | |
| 817 | error = init_sb(sdp, silent, DO); |
| 818 | if (error) |
| 819 | goto fail_locking; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 820 | |
| 821 | error = init_inodes(sdp, DO); |
| 822 | if (error) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 823 | goto fail_sb; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 824 | |
| 825 | error = init_per_node(sdp, DO); |
| 826 | if (error) |
| 827 | goto fail_inodes; |
| 828 | |
| 829 | error = gfs2_statfs_init(sdp); |
| 830 | if (error) { |
| 831 | fs_err(sdp, "can't initialize statfs subsystem: %d\n", error); |
| 832 | goto fail_per_node; |
| 833 | } |
| 834 | |
| 835 | error = init_threads(sdp, DO); |
| 836 | if (error) |
| 837 | goto fail_per_node; |
| 838 | |
| 839 | if (!(sb->s_flags & MS_RDONLY)) { |
| 840 | error = gfs2_make_fs_rw(sdp); |
| 841 | if (error) { |
| 842 | fs_err(sdp, "can't make FS RW: %d\n", error); |
| 843 | goto fail_threads; |
| 844 | } |
| 845 | } |
| 846 | |
| 847 | gfs2_glock_dq_uninit(&mount_gh); |
| 848 | |
| 849 | return 0; |
| 850 | |
| 851 | fail_threads: |
| 852 | init_threads(sdp, UNDO); |
| 853 | |
| 854 | fail_per_node: |
| 855 | init_per_node(sdp, UNDO); |
| 856 | |
| 857 | fail_inodes: |
| 858 | init_inodes(sdp, UNDO); |
| 859 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 860 | fail_sb: |
| 861 | init_sb(sdp, 0, UNDO); |
| 862 | |
| 863 | fail_locking: |
| 864 | init_locking(sdp, &mount_gh, UNDO); |
| 865 | |
| 866 | fail_lm: |
| 867 | gfs2_gl_hash_clear(sdp, WAIT); |
| 868 | gfs2_lm_unmount(sdp); |
| 869 | while (invalidate_inodes(sb)) |
| 870 | yield(); |
| 871 | |
| 872 | fail_sys: |
| 873 | gfs2_sys_fs_del(sdp); |
| 874 | |
| 875 | fail: |
| 876 | vfree(sdp); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 877 | sb->s_fs_info = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 878 | |
| 879 | return error; |
| 880 | } |
| 881 | |
| 882 | static struct super_block *gfs2_get_sb(struct file_system_type *fs_type, |
| 883 | int flags, const char *dev_name, |
| 884 | void *data) |
| 885 | { |
| 886 | return get_sb_bdev(fs_type, flags, dev_name, data, fill_super); |
| 887 | } |
| 888 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 889 | static void gfs2_kill_sb(struct super_block *sb) |
| 890 | { |
| 891 | kill_block_super(sb); |
| 892 | } |
| 893 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 894 | struct file_system_type gfs2_fs_type = { |
| 895 | .name = "gfs2", |
| 896 | .fs_flags = FS_REQUIRES_DEV, |
| 897 | .get_sb = gfs2_get_sb, |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 898 | .kill_sb = gfs2_kill_sb, |
| 899 | .owner = THIS_MODULE, |
| 900 | }; |
| 901 | |
| 902 | struct file_system_type gfs2meta_fs_type = { |
| 903 | .name = "gfs2meta", |
| 904 | .fs_flags = FS_REQUIRES_DEV, |
| 905 | .get_sb = gfs2_get_sb, |
| 906 | .kill_sb = gfs2_kill_sb, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 907 | .owner = THIS_MODULE, |
| 908 | }; |
| 909 | |