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" |
| 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" |
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 | |
Robert S Peterson | 5bb76af | 2006-05-05 16:29:50 -0400 | [diff] [blame] | 42 | extern struct dentry_operations gfs2_dops; |
| 43 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 44 | static struct gfs2_sbd *init_sbd(struct super_block *sb) |
| 45 | { |
| 46 | struct gfs2_sbd *sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 47 | |
Steven Whitehouse | 85d1da6 | 2006-09-07 14:40:21 -0400 | [diff] [blame] | 48 | sdp = kzalloc(sizeof(struct gfs2_sbd), GFP_KERNEL); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 49 | if (!sdp) |
| 50 | return NULL; |
| 51 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 52 | sb->s_fs_info = sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 53 | sdp->sd_vfs = sb; |
| 54 | |
| 55 | gfs2_tune_init(&sdp->sd_tune); |
| 56 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 57 | INIT_LIST_HEAD(&sdp->sd_reclaim_list); |
| 58 | spin_lock_init(&sdp->sd_reclaim_lock); |
| 59 | init_waitqueue_head(&sdp->sd_reclaim_wq); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 60 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 61 | mutex_init(&sdp->sd_inum_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 62 | spin_lock_init(&sdp->sd_statfs_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 63 | mutex_init(&sdp->sd_statfs_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 64 | |
| 65 | spin_lock_init(&sdp->sd_rindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 66 | mutex_init(&sdp->sd_rindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 67 | INIT_LIST_HEAD(&sdp->sd_rindex_list); |
| 68 | INIT_LIST_HEAD(&sdp->sd_rindex_mru_list); |
| 69 | INIT_LIST_HEAD(&sdp->sd_rindex_recent_list); |
| 70 | |
| 71 | INIT_LIST_HEAD(&sdp->sd_jindex_list); |
| 72 | spin_lock_init(&sdp->sd_jindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 73 | mutex_init(&sdp->sd_jindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 74 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 75 | INIT_LIST_HEAD(&sdp->sd_quota_list); |
| 76 | spin_lock_init(&sdp->sd_quota_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 77 | mutex_init(&sdp->sd_quota_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 78 | |
| 79 | spin_lock_init(&sdp->sd_log_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 80 | |
| 81 | INIT_LIST_HEAD(&sdp->sd_log_le_gl); |
| 82 | INIT_LIST_HEAD(&sdp->sd_log_le_buf); |
| 83 | INIT_LIST_HEAD(&sdp->sd_log_le_revoke); |
| 84 | INIT_LIST_HEAD(&sdp->sd_log_le_rg); |
| 85 | INIT_LIST_HEAD(&sdp->sd_log_le_databuf); |
| 86 | |
Steven Whitehouse | 71b86f5 | 2006-03-28 14:14:04 -0500 | [diff] [blame] | 87 | mutex_init(&sdp->sd_log_reserve_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 88 | INIT_LIST_HEAD(&sdp->sd_ail1_list); |
| 89 | INIT_LIST_HEAD(&sdp->sd_ail2_list); |
| 90 | |
Steven Whitehouse | 484adff | 2006-03-29 09:12:12 -0500 | [diff] [blame] | 91 | init_rwsem(&sdp->sd_log_flush_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 92 | INIT_LIST_HEAD(&sdp->sd_log_flush_list); |
| 93 | |
| 94 | INIT_LIST_HEAD(&sdp->sd_revoke_list); |
| 95 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 96 | mutex_init(&sdp->sd_freeze_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 97 | |
| 98 | return sdp; |
| 99 | } |
| 100 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 101 | static void init_vfs(struct super_block *sb, unsigned noatime) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 102 | { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 103 | struct gfs2_sbd *sdp = sb->s_fs_info; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 104 | |
| 105 | sb->s_magic = GFS2_MAGIC; |
| 106 | sb->s_op = &gfs2_super_ops; |
| 107 | sb->s_export_op = &gfs2_export_ops; |
| 108 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
| 109 | |
| 110 | if (sb->s_flags & (MS_NOATIME | MS_NODIRATIME)) |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 111 | set_bit(noatime, &sdp->sd_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 112 | |
| 113 | /* Don't let the VFS update atimes. GFS2 handles this itself. */ |
| 114 | sb->s_flags |= MS_NOATIME | MS_NODIRATIME; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 115 | } |
| 116 | |
| 117 | static int init_names(struct gfs2_sbd *sdp, int silent) |
| 118 | { |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame^] | 119 | struct page *page; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 120 | char *proto, *table; |
| 121 | int error = 0; |
| 122 | |
| 123 | proto = sdp->sd_args.ar_lockproto; |
| 124 | table = sdp->sd_args.ar_locktable; |
| 125 | |
| 126 | /* Try to autodetect */ |
| 127 | |
| 128 | if (!proto[0] || !table[0]) { |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame^] | 129 | struct gfs2_sb *sb; |
| 130 | page = gfs2_read_super(sdp->sd_vfs, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); |
| 131 | if (!page) |
| 132 | return -ENOBUFS; |
| 133 | sb = kmap(page); |
| 134 | gfs2_sb_in(&sdp->sd_sb, sb); |
| 135 | kunmap(page); |
| 136 | __free_page(page); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 137 | |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame^] | 138 | error = gfs2_check_sb(sdp, &sdp->sd_sb, silent); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 139 | if (error) |
| 140 | goto out; |
| 141 | |
| 142 | if (!proto[0]) |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame^] | 143 | proto = sdp->sd_sb.sb_lockproto; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 144 | if (!table[0]) |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame^] | 145 | table = sdp->sd_sb.sb_locktable; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | if (!table[0]) |
| 149 | table = sdp->sd_vfs->s_id; |
| 150 | |
| 151 | snprintf(sdp->sd_proto_name, GFS2_FSNAME_LEN, "%s", proto); |
| 152 | snprintf(sdp->sd_table_name, GFS2_FSNAME_LEN, "%s", table); |
| 153 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 154 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 155 | return error; |
| 156 | } |
| 157 | |
| 158 | static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, |
| 159 | int undo) |
| 160 | { |
| 161 | struct task_struct *p; |
| 162 | int error = 0; |
| 163 | |
| 164 | if (undo) |
| 165 | goto fail_trans; |
| 166 | |
| 167 | p = kthread_run(gfs2_scand, sdp, "gfs2_scand"); |
| 168 | error = IS_ERR(p); |
| 169 | if (error) { |
| 170 | fs_err(sdp, "can't start scand thread: %d\n", error); |
| 171 | return error; |
| 172 | } |
| 173 | sdp->sd_scand_process = p; |
| 174 | |
| 175 | for (sdp->sd_glockd_num = 0; |
| 176 | sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd; |
| 177 | sdp->sd_glockd_num++) { |
| 178 | p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd"); |
| 179 | error = IS_ERR(p); |
| 180 | if (error) { |
| 181 | fs_err(sdp, "can't start glockd thread: %d\n", error); |
| 182 | goto fail; |
| 183 | } |
| 184 | sdp->sd_glockd_process[sdp->sd_glockd_num] = p; |
| 185 | } |
| 186 | |
| 187 | error = gfs2_glock_nq_num(sdp, |
| 188 | GFS2_MOUNT_LOCK, &gfs2_nondisk_glops, |
| 189 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE, |
| 190 | mount_gh); |
| 191 | if (error) { |
| 192 | fs_err(sdp, "can't acquire mount glock: %d\n", error); |
| 193 | goto fail; |
| 194 | } |
| 195 | |
| 196 | error = gfs2_glock_nq_num(sdp, |
| 197 | GFS2_LIVE_LOCK, &gfs2_nondisk_glops, |
| 198 | LM_ST_SHARED, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 199 | LM_FLAG_NOEXP | GL_EXACT, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 200 | &sdp->sd_live_gh); |
| 201 | if (error) { |
| 202 | fs_err(sdp, "can't acquire live glock: %d\n", error); |
| 203 | goto fail_mount; |
| 204 | } |
| 205 | |
| 206 | error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops, |
| 207 | CREATE, &sdp->sd_rename_gl); |
| 208 | if (error) { |
| 209 | fs_err(sdp, "can't create rename glock: %d\n", error); |
| 210 | goto fail_live; |
| 211 | } |
| 212 | |
| 213 | error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops, |
| 214 | CREATE, &sdp->sd_trans_gl); |
| 215 | if (error) { |
| 216 | fs_err(sdp, "can't create transaction glock: %d\n", error); |
| 217 | goto fail_rename; |
| 218 | } |
| 219 | set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags); |
| 220 | |
| 221 | return 0; |
| 222 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 223 | fail_trans: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 224 | gfs2_glock_put(sdp->sd_trans_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 225 | fail_rename: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 226 | gfs2_glock_put(sdp->sd_rename_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 227 | fail_live: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 228 | gfs2_glock_dq_uninit(&sdp->sd_live_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 229 | fail_mount: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 230 | gfs2_glock_dq_uninit(mount_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 231 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 232 | while (sdp->sd_glockd_num--) |
| 233 | kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]); |
| 234 | |
| 235 | kthread_stop(sdp->sd_scand_process); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 236 | return error; |
| 237 | } |
| 238 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 239 | static struct inode *gfs2_lookup_root(struct super_block *sb, |
| 240 | struct gfs2_inum *inum) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 241 | { |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 242 | return gfs2_inode_lookup(sb, inum, DT_DIR); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 243 | } |
| 244 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 245 | static int init_sb(struct gfs2_sbd *sdp, int silent, int undo) |
| 246 | { |
| 247 | struct super_block *sb = sdp->sd_vfs; |
| 248 | struct gfs2_holder sb_gh; |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 249 | struct gfs2_inum *inum; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 250 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 251 | int error = 0; |
| 252 | |
| 253 | if (undo) { |
Russell Cattelan | 8872187 | 2006-08-10 11:08:40 -0500 | [diff] [blame] | 254 | if (sb->s_root) { |
| 255 | dput(sb->s_root); |
| 256 | sb->s_root = NULL; |
| 257 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 258 | return 0; |
| 259 | } |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 260 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 261 | error = gfs2_glock_nq_num(sdp, GFS2_SB_LOCK, &gfs2_meta_glops, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 262 | LM_ST_SHARED, 0, &sb_gh); |
| 263 | if (error) { |
| 264 | fs_err(sdp, "can't acquire superblock glock: %d\n", error); |
| 265 | return error; |
| 266 | } |
| 267 | |
| 268 | error = gfs2_read_sb(sdp, sb_gh.gh_gl, silent); |
| 269 | if (error) { |
| 270 | fs_err(sdp, "can't read superblock: %d\n", error); |
| 271 | goto out; |
| 272 | } |
| 273 | |
| 274 | /* Set up the buffer cache and SB for real */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 275 | if (sdp->sd_sb.sb_bsize < bdev_hardsect_size(sb->s_bdev)) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 276 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 277 | fs_err(sdp, "FS block size (%u) is too small for device " |
| 278 | "block size (%u)\n", |
| 279 | sdp->sd_sb.sb_bsize, bdev_hardsect_size(sb->s_bdev)); |
| 280 | goto out; |
| 281 | } |
| 282 | if (sdp->sd_sb.sb_bsize > PAGE_SIZE) { |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 283 | error = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 284 | fs_err(sdp, "FS block size (%u) is too big for machine " |
| 285 | "page size (%u)\n", |
| 286 | sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE); |
| 287 | goto out; |
| 288 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 289 | sb_set_blocksize(sb, sdp->sd_sb.sb_bsize); |
| 290 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 291 | /* Get the root inode */ |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 292 | inum = &sdp->sd_sb.sb_root_dir; |
| 293 | if (sb->s_type == &gfs2meta_fs_type) |
| 294 | inum = &sdp->sd_sb.sb_master_dir; |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 295 | inode = gfs2_lookup_root(sb, inum); |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 296 | if (IS_ERR(inode)) { |
| 297 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 298 | fs_err(sdp, "can't read in root inode: %d\n", error); |
| 299 | goto out; |
| 300 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 301 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 302 | sb->s_root = d_alloc_root(inode); |
| 303 | if (!sb->s_root) { |
| 304 | fs_err(sdp, "can't get root dentry\n"); |
| 305 | error = -ENOMEM; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 306 | iput(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 307 | } |
Robert S Peterson | 5bb76af | 2006-05-05 16:29:50 -0400 | [diff] [blame] | 308 | sb->s_root->d_op = &gfs2_dops; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 309 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 310 | gfs2_glock_dq_uninit(&sb_gh); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 311 | return error; |
| 312 | } |
| 313 | |
| 314 | static int init_journal(struct gfs2_sbd *sdp, int undo) |
| 315 | { |
| 316 | struct gfs2_holder ji_gh; |
| 317 | struct task_struct *p; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 318 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 319 | int jindex = 1; |
| 320 | int error = 0; |
| 321 | |
| 322 | if (undo) { |
| 323 | jindex = 0; |
| 324 | goto fail_recoverd; |
| 325 | } |
| 326 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 327 | sdp->sd_jindex = gfs2_lookup_simple(sdp->sd_master_dir, "jindex"); |
| 328 | if (IS_ERR(sdp->sd_jindex)) { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 329 | fs_err(sdp, "can't lookup journal index: %d\n", error); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 330 | return PTR_ERR(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 331 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 332 | ip = GFS2_I(sdp->sd_jindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 333 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 334 | |
| 335 | /* Load in the journal index special file */ |
| 336 | |
| 337 | error = gfs2_jindex_hold(sdp, &ji_gh); |
| 338 | if (error) { |
| 339 | fs_err(sdp, "can't read journal index: %d\n", error); |
| 340 | goto fail; |
| 341 | } |
| 342 | |
| 343 | error = -EINVAL; |
| 344 | if (!gfs2_jindex_size(sdp)) { |
| 345 | fs_err(sdp, "no journals!\n"); |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 346 | goto fail_jindex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | if (sdp->sd_args.ar_spectator) { |
| 350 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0); |
| 351 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 352 | } else { |
| 353 | if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) { |
| 354 | fs_err(sdp, "can't mount journal #%u\n", |
| 355 | sdp->sd_lockstruct.ls_jid); |
| 356 | fs_err(sdp, "there are only %u journals (0 - %u)\n", |
| 357 | gfs2_jindex_size(sdp), |
| 358 | gfs2_jindex_size(sdp) - 1); |
| 359 | goto fail_jindex; |
| 360 | } |
| 361 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid); |
| 362 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 363 | error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 364 | &gfs2_journal_glops, |
| 365 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP, |
| 366 | &sdp->sd_journal_gh); |
| 367 | if (error) { |
| 368 | fs_err(sdp, "can't acquire journal glock: %d\n", error); |
| 369 | goto fail_jindex; |
| 370 | } |
| 371 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 372 | ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
| 373 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 374 | LM_FLAG_NOEXP | GL_EXACT, |
| 375 | &sdp->sd_jinode_gh); |
| 376 | if (error) { |
| 377 | fs_err(sdp, "can't acquire journal inode glock: %d\n", |
| 378 | error); |
| 379 | goto fail_journal_gh; |
| 380 | } |
| 381 | |
| 382 | error = gfs2_jdesc_check(sdp->sd_jdesc); |
| 383 | if (error) { |
| 384 | fs_err(sdp, "my journal (%u) is bad: %d\n", |
| 385 | sdp->sd_jdesc->jd_jid, error); |
| 386 | goto fail_jinode_gh; |
| 387 | } |
| 388 | sdp->sd_log_blks_free = sdp->sd_jdesc->jd_blocks; |
| 389 | } |
| 390 | |
| 391 | if (sdp->sd_lockstruct.ls_first) { |
| 392 | unsigned int x; |
| 393 | for (x = 0; x < sdp->sd_journals; x++) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 394 | error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x)); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 395 | if (error) { |
| 396 | fs_err(sdp, "error recovering journal %u: %d\n", |
| 397 | x, error); |
| 398 | goto fail_jinode_gh; |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | gfs2_lm_others_may_mount(sdp); |
| 403 | } else if (!sdp->sd_args.ar_spectator) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 404 | error = gfs2_recover_journal(sdp->sd_jdesc); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 405 | if (error) { |
| 406 | fs_err(sdp, "error recovering my journal: %d\n", error); |
| 407 | goto fail_jinode_gh; |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags); |
| 412 | gfs2_glock_dq_uninit(&ji_gh); |
| 413 | jindex = 0; |
| 414 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 415 | p = kthread_run(gfs2_recoverd, sdp, "gfs2_recoverd"); |
| 416 | error = IS_ERR(p); |
| 417 | if (error) { |
| 418 | fs_err(sdp, "can't start recoverd thread: %d\n", error); |
| 419 | goto fail_jinode_gh; |
| 420 | } |
| 421 | sdp->sd_recoverd_process = p; |
| 422 | |
| 423 | return 0; |
| 424 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 425 | fail_recoverd: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 426 | kthread_stop(sdp->sd_recoverd_process); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 427 | fail_jinode_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 428 | if (!sdp->sd_args.ar_spectator) |
| 429 | gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 430 | fail_journal_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 431 | if (!sdp->sd_args.ar_spectator) |
| 432 | gfs2_glock_dq_uninit(&sdp->sd_journal_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 433 | fail_jindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 434 | gfs2_jindex_free(sdp); |
| 435 | if (jindex) |
| 436 | gfs2_glock_dq_uninit(&ji_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 437 | fail: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 438 | iput(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 439 | return error; |
| 440 | } |
| 441 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 442 | |
| 443 | static int init_inodes(struct gfs2_sbd *sdp, int undo) |
| 444 | { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 445 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 446 | struct gfs2_inode *ip; |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 447 | struct inode *inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 448 | |
| 449 | if (undo) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 450 | goto fail_qinode; |
| 451 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 452 | 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] | 453 | if (IS_ERR(inode)) { |
| 454 | error = PTR_ERR(inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 455 | fs_err(sdp, "can't read in master directory: %d\n", error); |
| 456 | goto fail; |
| 457 | } |
Steven Whitehouse | c9fd430 | 2006-03-01 15:31:02 -0500 | [diff] [blame] | 458 | sdp->sd_master_dir = inode; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 459 | |
| 460 | error = init_journal(sdp, undo); |
| 461 | if (error) |
| 462 | goto fail_master; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 463 | |
| 464 | /* Read in the master inode number inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 465 | sdp->sd_inum_inode = gfs2_lookup_simple(sdp->sd_master_dir, "inum"); |
| 466 | if (IS_ERR(sdp->sd_inum_inode)) { |
| 467 | error = PTR_ERR(sdp->sd_inum_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 468 | fs_err(sdp, "can't read in inum inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 469 | goto fail_journal; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 470 | } |
| 471 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 472 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 473 | /* Read in the master statfs inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 474 | sdp->sd_statfs_inode = gfs2_lookup_simple(sdp->sd_master_dir, "statfs"); |
| 475 | if (IS_ERR(sdp->sd_statfs_inode)) { |
| 476 | error = PTR_ERR(sdp->sd_statfs_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 477 | fs_err(sdp, "can't read in statfs inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 478 | goto fail_inum; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | /* Read in the resource index inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 482 | sdp->sd_rindex = gfs2_lookup_simple(sdp->sd_master_dir, "rindex"); |
| 483 | if (IS_ERR(sdp->sd_rindex)) { |
| 484 | error = PTR_ERR(sdp->sd_rindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 485 | fs_err(sdp, "can't get resource index inode: %d\n", error); |
| 486 | goto fail_statfs; |
| 487 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 488 | ip = GFS2_I(sdp->sd_rindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 489 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
| 490 | sdp->sd_rindex_vn = ip->i_gl->gl_vn - 1; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 491 | |
| 492 | /* Read in the quota inode */ |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 493 | sdp->sd_quota_inode = gfs2_lookup_simple(sdp->sd_master_dir, "quota"); |
| 494 | if (IS_ERR(sdp->sd_quota_inode)) { |
| 495 | error = PTR_ERR(sdp->sd_quota_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 496 | fs_err(sdp, "can't get quota file inode: %d\n", error); |
| 497 | goto fail_rindex; |
| 498 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 499 | return 0; |
| 500 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 501 | fail_qinode: |
| 502 | iput(sdp->sd_quota_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 503 | fail_rindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 504 | gfs2_clear_rgrpd(sdp); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 505 | iput(sdp->sd_rindex); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 506 | fail_statfs: |
| 507 | iput(sdp->sd_statfs_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 508 | fail_inum: |
| 509 | iput(sdp->sd_inum_inode); |
| 510 | fail_journal: |
| 511 | init_journal(sdp, UNDO); |
| 512 | fail_master: |
| 513 | iput(sdp->sd_master_dir); |
| 514 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 515 | return error; |
| 516 | } |
| 517 | |
| 518 | static int init_per_node(struct gfs2_sbd *sdp, int undo) |
| 519 | { |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 520 | struct inode *pn = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 521 | char buf[30]; |
| 522 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 523 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 524 | |
| 525 | if (sdp->sd_args.ar_spectator) |
| 526 | return 0; |
| 527 | |
| 528 | if (undo) |
| 529 | goto fail_qc_gh; |
| 530 | |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 531 | pn = gfs2_lookup_simple(sdp->sd_master_dir, "per_node"); |
| 532 | if (IS_ERR(pn)) { |
| 533 | error = PTR_ERR(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 534 | fs_err(sdp, "can't find per_node directory: %d\n", error); |
| 535 | return error; |
| 536 | } |
| 537 | |
| 538 | sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 539 | sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf); |
| 540 | if (IS_ERR(sdp->sd_ir_inode)) { |
| 541 | error = PTR_ERR(sdp->sd_ir_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 542 | fs_err(sdp, "can't find local \"ir\" file: %d\n", error); |
| 543 | goto fail; |
| 544 | } |
| 545 | |
| 546 | sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 547 | sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); |
| 548 | if (IS_ERR(sdp->sd_sc_inode)) { |
| 549 | error = PTR_ERR(sdp->sd_sc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 550 | fs_err(sdp, "can't find local \"sc\" file: %d\n", error); |
| 551 | goto fail_ir_i; |
| 552 | } |
| 553 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 554 | sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 555 | sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf); |
| 556 | if (IS_ERR(sdp->sd_qc_inode)) { |
| 557 | error = PTR_ERR(sdp->sd_qc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 558 | fs_err(sdp, "can't find local \"qc\" file: %d\n", error); |
| 559 | goto fail_ut_i; |
| 560 | } |
| 561 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 562 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 563 | pn = NULL; |
| 564 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 565 | ip = GFS2_I(sdp->sd_ir_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 566 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 567 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 568 | &sdp->sd_ir_gh); |
| 569 | if (error) { |
| 570 | fs_err(sdp, "can't lock local \"ir\" file: %d\n", error); |
| 571 | goto fail_qc_i; |
| 572 | } |
| 573 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 574 | ip = GFS2_I(sdp->sd_sc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 575 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 576 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 577 | &sdp->sd_sc_gh); |
| 578 | if (error) { |
| 579 | fs_err(sdp, "can't lock local \"sc\" file: %d\n", error); |
| 580 | goto fail_ir_gh; |
| 581 | } |
| 582 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 583 | ip = GFS2_I(sdp->sd_qc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 584 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 585 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 586 | &sdp->sd_qc_gh); |
| 587 | if (error) { |
| 588 | fs_err(sdp, "can't lock local \"qc\" file: %d\n", error); |
| 589 | goto fail_ut_gh; |
| 590 | } |
| 591 | |
| 592 | return 0; |
| 593 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 594 | fail_qc_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 595 | gfs2_glock_dq_uninit(&sdp->sd_qc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 596 | fail_ut_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 597 | gfs2_glock_dq_uninit(&sdp->sd_sc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 598 | fail_ir_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 599 | gfs2_glock_dq_uninit(&sdp->sd_ir_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 600 | fail_qc_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 601 | iput(sdp->sd_qc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 602 | fail_ut_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 603 | iput(sdp->sd_sc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 604 | fail_ir_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 605 | iput(sdp->sd_ir_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 606 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 607 | if (pn) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 608 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 609 | return error; |
| 610 | } |
| 611 | |
| 612 | static int init_threads(struct gfs2_sbd *sdp, int undo) |
| 613 | { |
| 614 | struct task_struct *p; |
| 615 | int error = 0; |
| 616 | |
| 617 | if (undo) |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 618 | goto fail_quotad; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 619 | |
| 620 | sdp->sd_log_flush_time = jiffies; |
| 621 | sdp->sd_jindex_refresh_time = jiffies; |
| 622 | |
| 623 | p = kthread_run(gfs2_logd, sdp, "gfs2_logd"); |
| 624 | error = IS_ERR(p); |
| 625 | if (error) { |
| 626 | fs_err(sdp, "can't start logd thread: %d\n", error); |
| 627 | return error; |
| 628 | } |
| 629 | sdp->sd_logd_process = p; |
| 630 | |
| 631 | sdp->sd_statfs_sync_time = jiffies; |
| 632 | sdp->sd_quota_sync_time = jiffies; |
| 633 | |
| 634 | p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad"); |
| 635 | error = IS_ERR(p); |
| 636 | if (error) { |
| 637 | fs_err(sdp, "can't start quotad thread: %d\n", error); |
| 638 | goto fail; |
| 639 | } |
| 640 | sdp->sd_quotad_process = p; |
| 641 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 642 | return 0; |
| 643 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 644 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 645 | fail_quotad: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 646 | kthread_stop(sdp->sd_quotad_process); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 647 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 648 | kthread_stop(sdp->sd_logd_process); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 649 | return error; |
| 650 | } |
| 651 | |
| 652 | /** |
| 653 | * fill_super - Read in superblock |
| 654 | * @sb: The VFS superblock |
| 655 | * @data: Mount options |
| 656 | * @silent: Don't complain if it's not a GFS2 filesystem |
| 657 | * |
| 658 | * Returns: errno |
| 659 | */ |
| 660 | |
| 661 | static int fill_super(struct super_block *sb, void *data, int silent) |
| 662 | { |
| 663 | struct gfs2_sbd *sdp; |
| 664 | struct gfs2_holder mount_gh; |
| 665 | int error; |
| 666 | |
| 667 | sdp = init_sbd(sb); |
| 668 | if (!sdp) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 669 | printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 670 | return -ENOMEM; |
| 671 | } |
| 672 | |
| 673 | error = gfs2_mount_args(sdp, (char *)data, 0); |
| 674 | if (error) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 675 | printk(KERN_WARNING "GFS2: can't parse mount arguments\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 676 | goto fail; |
| 677 | } |
| 678 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 679 | init_vfs(sb, SDF_NOATIME); |
| 680 | |
| 681 | /* Set up the buffer cache and fill in some fake block size values |
| 682 | to allow us to read-in the on-disk superblock. */ |
| 683 | sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK); |
| 684 | sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; |
| 685 | sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - |
| 686 | GFS2_BASIC_BLOCK_SHIFT; |
| 687 | sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 688 | |
| 689 | error = init_names(sdp, silent); |
| 690 | if (error) |
| 691 | goto fail; |
| 692 | |
| 693 | error = gfs2_sys_fs_add(sdp); |
| 694 | if (error) |
| 695 | goto fail; |
| 696 | |
| 697 | error = gfs2_lm_mount(sdp, silent); |
| 698 | if (error) |
| 699 | goto fail_sys; |
| 700 | |
| 701 | error = init_locking(sdp, &mount_gh, DO); |
| 702 | if (error) |
| 703 | goto fail_lm; |
| 704 | |
| 705 | error = init_sb(sdp, silent, DO); |
| 706 | if (error) |
| 707 | goto fail_locking; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 708 | |
| 709 | error = init_inodes(sdp, DO); |
| 710 | if (error) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 711 | goto fail_sb; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 712 | |
| 713 | error = init_per_node(sdp, DO); |
| 714 | if (error) |
| 715 | goto fail_inodes; |
| 716 | |
| 717 | error = gfs2_statfs_init(sdp); |
| 718 | if (error) { |
| 719 | fs_err(sdp, "can't initialize statfs subsystem: %d\n", error); |
| 720 | goto fail_per_node; |
| 721 | } |
| 722 | |
| 723 | error = init_threads(sdp, DO); |
| 724 | if (error) |
| 725 | goto fail_per_node; |
| 726 | |
| 727 | if (!(sb->s_flags & MS_RDONLY)) { |
| 728 | error = gfs2_make_fs_rw(sdp); |
| 729 | if (error) { |
| 730 | fs_err(sdp, "can't make FS RW: %d\n", error); |
| 731 | goto fail_threads; |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | gfs2_glock_dq_uninit(&mount_gh); |
| 736 | |
| 737 | return 0; |
| 738 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 739 | fail_threads: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 740 | init_threads(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 741 | fail_per_node: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 742 | init_per_node(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 743 | fail_inodes: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 744 | init_inodes(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 745 | fail_sb: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 746 | init_sb(sdp, 0, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 747 | fail_locking: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 748 | init_locking(sdp, &mount_gh, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 749 | fail_lm: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 750 | gfs2_gl_hash_clear(sdp, WAIT); |
| 751 | gfs2_lm_unmount(sdp); |
| 752 | while (invalidate_inodes(sb)) |
| 753 | yield(); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 754 | fail_sys: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 755 | gfs2_sys_fs_del(sdp); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 756 | fail: |
Steven Whitehouse | a2c4580 | 2006-09-08 10:13:03 -0400 | [diff] [blame] | 757 | kfree(sdp); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 758 | sb->s_fs_info = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 759 | return error; |
| 760 | } |
| 761 | |
Andrew Morton | ccd6efd | 2006-06-30 02:16:34 -0700 | [diff] [blame] | 762 | static int gfs2_get_sb(struct file_system_type *fs_type, int flags, |
| 763 | const char *dev_name, void *data, struct vfsmount *mnt) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 764 | { |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 765 | struct super_block *sb; |
| 766 | struct gfs2_sbd *sdp; |
| 767 | int error = get_sb_bdev(fs_type, flags, dev_name, data, fill_super, mnt); |
| 768 | if (error) |
| 769 | goto out; |
| 770 | sb = mnt->mnt_sb; |
Steven Whitehouse | 26c1a57 | 2006-09-04 15:32:10 -0400 | [diff] [blame] | 771 | sdp = sb->s_fs_info; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 772 | sdp->sd_gfs2mnt = mnt; |
| 773 | out: |
| 774 | return error; |
| 775 | } |
| 776 | |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 777 | 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] | 778 | void *data, int silent) |
| 779 | { |
| 780 | struct gfs2_sbd *sdp = sb->s_fs_info; |
| 781 | struct inode *inode; |
| 782 | int error = 0; |
| 783 | |
| 784 | new->s_fs_info = sdp; |
| 785 | sdp->sd_vfs_meta = sb; |
| 786 | |
| 787 | init_vfs(new, SDF_NOATIME); |
| 788 | |
| 789 | /* Get the master inode */ |
| 790 | inode = igrab(sdp->sd_master_dir); |
| 791 | |
| 792 | new->s_root = d_alloc_root(inode); |
| 793 | if (!new->s_root) { |
| 794 | fs_err(sdp, "can't get root dentry\n"); |
| 795 | error = -ENOMEM; |
| 796 | iput(inode); |
| 797 | } |
| 798 | new->s_root->d_op = &gfs2_dops; |
| 799 | |
| 800 | return error; |
| 801 | } |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 802 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 803 | static int set_bdev_super(struct super_block *s, void *data) |
| 804 | { |
| 805 | s->s_bdev = data; |
| 806 | s->s_dev = s->s_bdev->bd_dev; |
| 807 | return 0; |
| 808 | } |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 809 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 810 | static int test_bdev_super(struct super_block *s, void *data) |
| 811 | { |
Steven Whitehouse | 26c1a57 | 2006-09-04 15:32:10 -0400 | [diff] [blame] | 812 | return s->s_bdev == data; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 813 | } |
| 814 | |
| 815 | static struct super_block* get_gfs2_sb(const char *dev_name) |
| 816 | { |
| 817 | struct kstat stat; |
| 818 | struct nameidata nd; |
| 819 | struct file_system_type *fstype; |
| 820 | struct super_block *sb = NULL, *s; |
| 821 | struct list_head *l; |
| 822 | int error; |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 823 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 824 | error = path_lookup(dev_name, LOOKUP_FOLLOW, &nd); |
| 825 | if (error) { |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 826 | printk(KERN_WARNING "GFS2: path_lookup on %s returned error\n", |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 827 | dev_name); |
| 828 | goto out; |
| 829 | } |
| 830 | error = vfs_getattr(nd.mnt, nd.dentry, &stat); |
| 831 | |
| 832 | fstype = get_fs_type("gfs2"); |
| 833 | list_for_each(l, &fstype->fs_supers) { |
| 834 | s = list_entry(l, struct super_block, s_instances); |
| 835 | if ((S_ISBLK(stat.mode) && s->s_dev == stat.rdev) || |
| 836 | (S_ISDIR(stat.mode) && s == nd.dentry->d_inode->i_sb)) { |
| 837 | sb = s; |
| 838 | goto free_nd; |
| 839 | } |
| 840 | } |
| 841 | |
| 842 | printk(KERN_WARNING "GFS2: Unrecognized block device or " |
| 843 | "mount point %s", dev_name); |
| 844 | |
| 845 | free_nd: |
| 846 | path_release(&nd); |
| 847 | out: |
| 848 | return sb; |
| 849 | } |
| 850 | |
| 851 | static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags, |
| 852 | const char *dev_name, void *data, struct vfsmount *mnt) |
| 853 | { |
| 854 | int error = 0; |
| 855 | struct super_block *sb = NULL, *new; |
| 856 | struct gfs2_sbd *sdp; |
| 857 | char *gfs2mnt = NULL; |
| 858 | |
| 859 | sb = get_gfs2_sb(dev_name); |
| 860 | if (!sb) { |
| 861 | printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n"); |
| 862 | error = -ENOENT; |
| 863 | goto error; |
| 864 | } |
| 865 | sdp = (struct gfs2_sbd*) sb->s_fs_info; |
| 866 | if (sdp->sd_vfs_meta) { |
| 867 | printk(KERN_WARNING "GFS2: gfs2meta mount already exists\n"); |
| 868 | error = -EBUSY; |
| 869 | goto error; |
| 870 | } |
| 871 | mutex_lock(&sb->s_bdev->bd_mount_mutex); |
| 872 | new = sget(fs_type, test_bdev_super, set_bdev_super, sb->s_bdev); |
| 873 | mutex_unlock(&sb->s_bdev->bd_mount_mutex); |
| 874 | if (IS_ERR(new)) { |
| 875 | error = PTR_ERR(new); |
| 876 | goto error; |
| 877 | } |
| 878 | module_put(fs_type->owner); |
| 879 | new->s_flags = flags; |
| 880 | strlcpy(new->s_id, sb->s_id, sizeof(new->s_id)); |
| 881 | sb_set_blocksize(new, sb->s_blocksize); |
| 882 | error = fill_super_meta(sb, new, data, flags & MS_SILENT ? 1 : 0); |
| 883 | if (error) { |
| 884 | up_write(&new->s_umount); |
| 885 | deactivate_super(new); |
| 886 | goto error; |
| 887 | } |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 888 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 889 | new->s_flags |= MS_ACTIVE; |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 890 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 891 | /* Grab a reference to the gfs2 mount point */ |
| 892 | atomic_inc(&sdp->sd_gfs2mnt->mnt_count); |
| 893 | return simple_set_mnt(mnt, new); |
| 894 | error: |
| 895 | if (gfs2mnt) |
| 896 | kfree(gfs2mnt); |
| 897 | return error; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 898 | } |
| 899 | |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 900 | static void gfs2_kill_sb(struct super_block *sb) |
| 901 | { |
| 902 | kill_block_super(sb); |
| 903 | } |
| 904 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 905 | static void gfs2_kill_sb_meta(struct super_block *sb) |
| 906 | { |
| 907 | struct gfs2_sbd *sdp = sb->s_fs_info; |
| 908 | generic_shutdown_super(sb); |
| 909 | sdp->sd_vfs_meta = NULL; |
| 910 | atomic_dec(&sdp->sd_gfs2mnt->mnt_count); |
| 911 | } |
| 912 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 913 | struct file_system_type gfs2_fs_type = { |
| 914 | .name = "gfs2", |
| 915 | .fs_flags = FS_REQUIRES_DEV, |
| 916 | .get_sb = gfs2_get_sb, |
Steven Whitehouse | 419c93e | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 917 | .kill_sb = gfs2_kill_sb, |
| 918 | .owner = THIS_MODULE, |
| 919 | }; |
| 920 | |
| 921 | struct file_system_type gfs2meta_fs_type = { |
| 922 | .name = "gfs2meta", |
| 923 | .fs_flags = FS_REQUIRES_DEV, |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 924 | .get_sb = gfs2_get_sb_meta, |
| 925 | .kill_sb = gfs2_kill_sb_meta, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 926 | .owner = THIS_MODULE, |
| 927 | }; |
| 928 | |