David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 3 | * Copyright (C) 2004-2008 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" |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 24 | #include "bmap.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" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 29 | #include "mount.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 30 | #include "ops_fstype.h" |
Denis Cheng | ca5a939 | 2007-07-31 18:31:12 +0800 | [diff] [blame] | 31 | #include "ops_dentry.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 32 | #include "ops_super.h" |
| 33 | #include "recovery.h" |
| 34 | #include "rgrp.h" |
| 35 | #include "super.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 36 | #include "sys.h" |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 37 | #include "util.h" |
Steven Whitehouse | bb3b0e3 | 2007-08-16 16:03:57 +0100 | [diff] [blame] | 38 | #include "log.h" |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 39 | |
| 40 | #define DO 0 |
| 41 | #define UNDO 1 |
| 42 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 43 | static const u32 gfs2_old_fs_formats[] = { |
| 44 | 0 |
| 45 | }; |
| 46 | |
| 47 | static const u32 gfs2_old_multihost_formats[] = { |
| 48 | 0 |
| 49 | }; |
| 50 | |
| 51 | /** |
| 52 | * gfs2_tune_init - Fill a gfs2_tune structure with default values |
| 53 | * @gt: tune |
| 54 | * |
| 55 | */ |
| 56 | |
| 57 | static void gfs2_tune_init(struct gfs2_tune *gt) |
| 58 | { |
| 59 | spin_lock_init(>->gt_spin); |
| 60 | |
| 61 | gt->gt_demote_secs = 300; |
| 62 | gt->gt_incore_log_blocks = 1024; |
| 63 | gt->gt_log_flush_secs = 60; |
| 64 | gt->gt_recoverd_secs = 60; |
| 65 | gt->gt_logd_secs = 1; |
| 66 | gt->gt_quotad_secs = 5; |
| 67 | gt->gt_quota_simul_sync = 64; |
| 68 | gt->gt_quota_warn_period = 10; |
| 69 | gt->gt_quota_scale_num = 1; |
| 70 | gt->gt_quota_scale_den = 1; |
| 71 | gt->gt_quota_cache_secs = 300; |
| 72 | gt->gt_quota_quantum = 60; |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 73 | gt->gt_new_files_jdata = 0; |
| 74 | gt->gt_max_readahead = 1 << 18; |
| 75 | gt->gt_stall_secs = 600; |
| 76 | gt->gt_complain_secs = 10; |
| 77 | gt->gt_statfs_quantum = 30; |
| 78 | gt->gt_statfs_slow = 0; |
| 79 | } |
| 80 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 81 | static struct gfs2_sbd *init_sbd(struct super_block *sb) |
| 82 | { |
| 83 | struct gfs2_sbd *sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 84 | |
Steven Whitehouse | 85d1da6 | 2006-09-07 14:40:21 -0400 | [diff] [blame] | 85 | sdp = kzalloc(sizeof(struct gfs2_sbd), GFP_KERNEL); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 86 | if (!sdp) |
| 87 | return NULL; |
| 88 | |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 89 | sb->s_fs_info = sdp; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 90 | sdp->sd_vfs = sb; |
| 91 | |
| 92 | gfs2_tune_init(&sdp->sd_tune); |
| 93 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 94 | INIT_LIST_HEAD(&sdp->sd_reclaim_list); |
| 95 | spin_lock_init(&sdp->sd_reclaim_lock); |
| 96 | init_waitqueue_head(&sdp->sd_reclaim_wq); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 97 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 98 | mutex_init(&sdp->sd_inum_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 99 | spin_lock_init(&sdp->sd_statfs_spin); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 100 | |
| 101 | spin_lock_init(&sdp->sd_rindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 102 | mutex_init(&sdp->sd_rindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 103 | INIT_LIST_HEAD(&sdp->sd_rindex_list); |
| 104 | INIT_LIST_HEAD(&sdp->sd_rindex_mru_list); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 105 | |
| 106 | INIT_LIST_HEAD(&sdp->sd_jindex_list); |
| 107 | spin_lock_init(&sdp->sd_jindex_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 108 | mutex_init(&sdp->sd_jindex_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 109 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 110 | INIT_LIST_HEAD(&sdp->sd_quota_list); |
| 111 | spin_lock_init(&sdp->sd_quota_spin); |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 112 | mutex_init(&sdp->sd_quota_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 113 | |
| 114 | spin_lock_init(&sdp->sd_log_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 115 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 116 | INIT_LIST_HEAD(&sdp->sd_log_le_buf); |
| 117 | INIT_LIST_HEAD(&sdp->sd_log_le_revoke); |
| 118 | INIT_LIST_HEAD(&sdp->sd_log_le_rg); |
| 119 | INIT_LIST_HEAD(&sdp->sd_log_le_databuf); |
Steven Whitehouse | d7b616e | 2007-09-02 10:48:13 +0100 | [diff] [blame] | 120 | INIT_LIST_HEAD(&sdp->sd_log_le_ordered); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 121 | |
Steven Whitehouse | 71b86f5 | 2006-03-28 14:14:04 -0500 | [diff] [blame] | 122 | mutex_init(&sdp->sd_log_reserve_mutex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 123 | INIT_LIST_HEAD(&sdp->sd_ail1_list); |
| 124 | INIT_LIST_HEAD(&sdp->sd_ail2_list); |
| 125 | |
Steven Whitehouse | 484adff | 2006-03-29 09:12:12 -0500 | [diff] [blame] | 126 | init_rwsem(&sdp->sd_log_flush_lock); |
Steven Whitehouse | 16615be | 2007-09-17 10:59:52 +0100 | [diff] [blame] | 127 | atomic_set(&sdp->sd_log_in_flight, 0); |
| 128 | init_waitqueue_head(&sdp->sd_log_flush_wait); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 129 | |
| 130 | INIT_LIST_HEAD(&sdp->sd_revoke_list); |
| 131 | |
Steven Whitehouse | f55ab26 | 2006-02-21 12:51:39 +0000 | [diff] [blame] | 132 | mutex_init(&sdp->sd_freeze_lock); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 133 | |
| 134 | return sdp; |
| 135 | } |
| 136 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 137 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 138 | /** |
| 139 | * gfs2_check_sb - Check superblock |
| 140 | * @sdp: the filesystem |
| 141 | * @sb: The superblock |
| 142 | * @silent: Don't print a message if the check fails |
| 143 | * |
| 144 | * Checks the version code of the FS is one that we understand how to |
| 145 | * read and that the sizes of the various on-disk structures have not |
| 146 | * changed. |
| 147 | */ |
| 148 | |
| 149 | static int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent) |
| 150 | { |
| 151 | unsigned int x; |
| 152 | |
| 153 | if (sb->sb_magic != GFS2_MAGIC || |
| 154 | sb->sb_type != GFS2_METATYPE_SB) { |
| 155 | if (!silent) |
| 156 | printk(KERN_WARNING "GFS2: not a GFS2 filesystem\n"); |
| 157 | return -EINVAL; |
| 158 | } |
| 159 | |
| 160 | /* If format numbers match exactly, we're done. */ |
| 161 | |
| 162 | if (sb->sb_fs_format == GFS2_FORMAT_FS && |
| 163 | sb->sb_multihost_format == GFS2_FORMAT_MULTI) |
| 164 | return 0; |
| 165 | |
| 166 | if (sb->sb_fs_format != GFS2_FORMAT_FS) { |
| 167 | for (x = 0; gfs2_old_fs_formats[x]; x++) |
| 168 | if (gfs2_old_fs_formats[x] == sb->sb_fs_format) |
| 169 | break; |
| 170 | |
| 171 | if (!gfs2_old_fs_formats[x]) { |
| 172 | printk(KERN_WARNING |
| 173 | "GFS2: code version (%u, %u) is incompatible " |
| 174 | "with ondisk format (%u, %u)\n", |
| 175 | GFS2_FORMAT_FS, GFS2_FORMAT_MULTI, |
| 176 | sb->sb_fs_format, sb->sb_multihost_format); |
| 177 | printk(KERN_WARNING |
| 178 | "GFS2: I don't know how to upgrade this FS\n"); |
| 179 | return -EINVAL; |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | if (sb->sb_multihost_format != GFS2_FORMAT_MULTI) { |
| 184 | for (x = 0; gfs2_old_multihost_formats[x]; x++) |
| 185 | if (gfs2_old_multihost_formats[x] == |
| 186 | sb->sb_multihost_format) |
| 187 | break; |
| 188 | |
| 189 | if (!gfs2_old_multihost_formats[x]) { |
| 190 | printk(KERN_WARNING |
| 191 | "GFS2: code version (%u, %u) is incompatible " |
| 192 | "with ondisk format (%u, %u)\n", |
| 193 | GFS2_FORMAT_FS, GFS2_FORMAT_MULTI, |
| 194 | sb->sb_fs_format, sb->sb_multihost_format); |
| 195 | printk(KERN_WARNING |
| 196 | "GFS2: I don't know how to upgrade this FS\n"); |
| 197 | return -EINVAL; |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | if (!sdp->sd_args.ar_upgrade) { |
| 202 | printk(KERN_WARNING |
| 203 | "GFS2: code version (%u, %u) is incompatible " |
| 204 | "with ondisk format (%u, %u)\n", |
| 205 | GFS2_FORMAT_FS, GFS2_FORMAT_MULTI, |
| 206 | sb->sb_fs_format, sb->sb_multihost_format); |
| 207 | printk(KERN_INFO |
| 208 | "GFS2: Use the \"upgrade\" mount option to upgrade " |
| 209 | "the FS\n"); |
| 210 | printk(KERN_INFO "GFS2: See the manual for more details\n"); |
| 211 | return -EINVAL; |
| 212 | } |
| 213 | |
| 214 | return 0; |
| 215 | } |
| 216 | |
| 217 | static void end_bio_io_page(struct bio *bio, int error) |
| 218 | { |
| 219 | struct page *page = bio->bi_private; |
| 220 | |
| 221 | if (!error) |
| 222 | SetPageUptodate(page); |
| 223 | else |
| 224 | printk(KERN_WARNING "gfs2: error %d reading superblock\n", error); |
| 225 | unlock_page(page); |
| 226 | } |
| 227 | |
| 228 | static void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf) |
| 229 | { |
| 230 | const struct gfs2_sb *str = buf; |
| 231 | |
| 232 | sb->sb_magic = be32_to_cpu(str->sb_header.mh_magic); |
| 233 | sb->sb_type = be32_to_cpu(str->sb_header.mh_type); |
| 234 | sb->sb_format = be32_to_cpu(str->sb_header.mh_format); |
| 235 | sb->sb_fs_format = be32_to_cpu(str->sb_fs_format); |
| 236 | sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format); |
| 237 | sb->sb_bsize = be32_to_cpu(str->sb_bsize); |
| 238 | sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift); |
| 239 | sb->sb_master_dir.no_addr = be64_to_cpu(str->sb_master_dir.no_addr); |
| 240 | sb->sb_master_dir.no_formal_ino = be64_to_cpu(str->sb_master_dir.no_formal_ino); |
| 241 | sb->sb_root_dir.no_addr = be64_to_cpu(str->sb_root_dir.no_addr); |
| 242 | sb->sb_root_dir.no_formal_ino = be64_to_cpu(str->sb_root_dir.no_formal_ino); |
| 243 | |
| 244 | memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN); |
| 245 | memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN); |
| 246 | } |
| 247 | |
| 248 | /** |
| 249 | * gfs2_read_super - Read the gfs2 super block from disk |
| 250 | * @sdp: The GFS2 super block |
| 251 | * @sector: The location of the super block |
| 252 | * @error: The error code to return |
| 253 | * |
| 254 | * This uses the bio functions to read the super block from disk |
| 255 | * because we want to be 100% sure that we never read cached data. |
| 256 | * A super block is read twice only during each GFS2 mount and is |
| 257 | * never written to by the filesystem. The first time its read no |
| 258 | * locks are held, and the only details which are looked at are those |
| 259 | * relating to the locking protocol. Once locking is up and working, |
| 260 | * the sb is read again under the lock to establish the location of |
| 261 | * the master directory (contains pointers to journals etc) and the |
| 262 | * root directory. |
| 263 | * |
| 264 | * Returns: 0 on success or error |
| 265 | */ |
| 266 | |
| 267 | static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector) |
| 268 | { |
| 269 | struct super_block *sb = sdp->sd_vfs; |
| 270 | struct gfs2_sb *p; |
| 271 | struct page *page; |
| 272 | struct bio *bio; |
| 273 | |
| 274 | page = alloc_page(GFP_NOFS); |
| 275 | if (unlikely(!page)) |
| 276 | return -ENOBUFS; |
| 277 | |
| 278 | ClearPageUptodate(page); |
| 279 | ClearPageDirty(page); |
| 280 | lock_page(page); |
| 281 | |
| 282 | bio = bio_alloc(GFP_NOFS, 1); |
| 283 | if (unlikely(!bio)) { |
| 284 | __free_page(page); |
| 285 | return -ENOBUFS; |
| 286 | } |
| 287 | |
| 288 | bio->bi_sector = sector * (sb->s_blocksize >> 9); |
| 289 | bio->bi_bdev = sb->s_bdev; |
| 290 | bio_add_page(bio, page, PAGE_SIZE, 0); |
| 291 | |
| 292 | bio->bi_end_io = end_bio_io_page; |
| 293 | bio->bi_private = page; |
| 294 | submit_bio(READ_SYNC | (1 << BIO_RW_META), bio); |
| 295 | wait_on_page_locked(page); |
| 296 | bio_put(bio); |
| 297 | if (!PageUptodate(page)) { |
| 298 | __free_page(page); |
| 299 | return -EIO; |
| 300 | } |
| 301 | p = kmap(page); |
| 302 | gfs2_sb_in(&sdp->sd_sb, p); |
| 303 | kunmap(page); |
| 304 | __free_page(page); |
| 305 | return 0; |
| 306 | } |
| 307 | /** |
| 308 | * gfs2_read_sb - Read super block |
| 309 | * @sdp: The GFS2 superblock |
| 310 | * @gl: the glock for the superblock (assumed to be held) |
| 311 | * @silent: Don't print message if mount fails |
| 312 | * |
| 313 | */ |
| 314 | |
| 315 | static int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent) |
| 316 | { |
| 317 | u32 hash_blocks, ind_blocks, leaf_blocks; |
| 318 | u32 tmp_blocks; |
| 319 | unsigned int x; |
| 320 | int error; |
| 321 | |
| 322 | error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); |
| 323 | if (error) { |
| 324 | if (!silent) |
| 325 | fs_err(sdp, "can't read superblock\n"); |
| 326 | return error; |
| 327 | } |
| 328 | |
| 329 | error = gfs2_check_sb(sdp, &sdp->sd_sb, silent); |
| 330 | if (error) |
| 331 | return error; |
| 332 | |
| 333 | sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - |
| 334 | GFS2_BASIC_BLOCK_SHIFT; |
| 335 | sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; |
| 336 | sdp->sd_diptrs = (sdp->sd_sb.sb_bsize - |
| 337 | sizeof(struct gfs2_dinode)) / sizeof(u64); |
| 338 | sdp->sd_inptrs = (sdp->sd_sb.sb_bsize - |
| 339 | sizeof(struct gfs2_meta_header)) / sizeof(u64); |
| 340 | sdp->sd_jbsize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header); |
| 341 | sdp->sd_hash_bsize = sdp->sd_sb.sb_bsize / 2; |
| 342 | sdp->sd_hash_bsize_shift = sdp->sd_sb.sb_bsize_shift - 1; |
| 343 | sdp->sd_hash_ptrs = sdp->sd_hash_bsize / sizeof(u64); |
| 344 | sdp->sd_qc_per_block = (sdp->sd_sb.sb_bsize - |
| 345 | sizeof(struct gfs2_meta_header)) / |
| 346 | sizeof(struct gfs2_quota_change); |
| 347 | |
| 348 | /* Compute maximum reservation required to add a entry to a directory */ |
| 349 | |
| 350 | hash_blocks = DIV_ROUND_UP(sizeof(u64) * (1 << GFS2_DIR_MAX_DEPTH), |
| 351 | sdp->sd_jbsize); |
| 352 | |
| 353 | ind_blocks = 0; |
| 354 | for (tmp_blocks = hash_blocks; tmp_blocks > sdp->sd_diptrs;) { |
| 355 | tmp_blocks = DIV_ROUND_UP(tmp_blocks, sdp->sd_inptrs); |
| 356 | ind_blocks += tmp_blocks; |
| 357 | } |
| 358 | |
| 359 | leaf_blocks = 2 + GFS2_DIR_MAX_DEPTH; |
| 360 | |
| 361 | sdp->sd_max_dirres = hash_blocks + ind_blocks + leaf_blocks; |
| 362 | |
| 363 | sdp->sd_heightsize[0] = sdp->sd_sb.sb_bsize - |
| 364 | sizeof(struct gfs2_dinode); |
| 365 | sdp->sd_heightsize[1] = sdp->sd_sb.sb_bsize * sdp->sd_diptrs; |
| 366 | for (x = 2;; x++) { |
| 367 | u64 space, d; |
| 368 | u32 m; |
| 369 | |
| 370 | space = sdp->sd_heightsize[x - 1] * sdp->sd_inptrs; |
| 371 | d = space; |
| 372 | m = do_div(d, sdp->sd_inptrs); |
| 373 | |
| 374 | if (d != sdp->sd_heightsize[x - 1] || m) |
| 375 | break; |
| 376 | sdp->sd_heightsize[x] = space; |
| 377 | } |
| 378 | sdp->sd_max_height = x; |
| 379 | sdp->sd_heightsize[x] = ~0; |
| 380 | gfs2_assert(sdp, sdp->sd_max_height <= GFS2_MAX_META_HEIGHT); |
| 381 | |
| 382 | sdp->sd_jheightsize[0] = sdp->sd_sb.sb_bsize - |
| 383 | sizeof(struct gfs2_dinode); |
| 384 | sdp->sd_jheightsize[1] = sdp->sd_jbsize * sdp->sd_diptrs; |
| 385 | for (x = 2;; x++) { |
| 386 | u64 space, d; |
| 387 | u32 m; |
| 388 | |
| 389 | space = sdp->sd_jheightsize[x - 1] * sdp->sd_inptrs; |
| 390 | d = space; |
| 391 | m = do_div(d, sdp->sd_inptrs); |
| 392 | |
| 393 | if (d != sdp->sd_jheightsize[x - 1] || m) |
| 394 | break; |
| 395 | sdp->sd_jheightsize[x] = space; |
| 396 | } |
| 397 | sdp->sd_max_jheight = x; |
| 398 | sdp->sd_jheightsize[x] = ~0; |
| 399 | gfs2_assert(sdp, sdp->sd_max_jheight <= GFS2_MAX_META_HEIGHT); |
| 400 | |
| 401 | return 0; |
| 402 | } |
| 403 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 404 | static int init_names(struct gfs2_sbd *sdp, int silent) |
| 405 | { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 406 | char *proto, *table; |
| 407 | int error = 0; |
| 408 | |
| 409 | proto = sdp->sd_args.ar_lockproto; |
| 410 | table = sdp->sd_args.ar_locktable; |
| 411 | |
| 412 | /* Try to autodetect */ |
| 413 | |
| 414 | if (!proto[0] || !table[0]) { |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 415 | error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift); |
| 416 | if (error) |
| 417 | return error; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 418 | |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame] | 419 | error = gfs2_check_sb(sdp, &sdp->sd_sb, silent); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 420 | if (error) |
| 421 | goto out; |
| 422 | |
| 423 | if (!proto[0]) |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame] | 424 | proto = sdp->sd_sb.sb_lockproto; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 425 | if (!table[0]) |
Steven Whitehouse | 3cf1e7b | 2006-10-02 11:49:41 -0400 | [diff] [blame] | 426 | table = sdp->sd_sb.sb_locktable; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 427 | } |
| 428 | |
| 429 | if (!table[0]) |
| 430 | table = sdp->sd_vfs->s_id; |
| 431 | |
Jean Delvare | 00377d8 | 2008-05-09 17:59:51 +0200 | [diff] [blame] | 432 | strlcpy(sdp->sd_proto_name, proto, GFS2_FSNAME_LEN); |
| 433 | strlcpy(sdp->sd_table_name, table, GFS2_FSNAME_LEN); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 434 | |
Denis Cheng | 5d35e31 | 2007-08-13 11:01:58 +0800 | [diff] [blame] | 435 | table = sdp->sd_table_name; |
| 436 | while ((table = strchr(table, '/'))) |
Robert Peterson | b35997d | 2007-06-07 09:10:01 -0500 | [diff] [blame] | 437 | *table = '_'; |
| 438 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 439 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 440 | return error; |
| 441 | } |
| 442 | |
| 443 | static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, |
| 444 | int undo) |
| 445 | { |
| 446 | struct task_struct *p; |
| 447 | int error = 0; |
| 448 | |
| 449 | if (undo) |
| 450 | goto fail_trans; |
| 451 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 452 | for (sdp->sd_glockd_num = 0; |
| 453 | sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd; |
| 454 | sdp->sd_glockd_num++) { |
| 455 | p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd"); |
| 456 | error = IS_ERR(p); |
| 457 | if (error) { |
| 458 | fs_err(sdp, "can't start glockd thread: %d\n", error); |
| 459 | goto fail; |
| 460 | } |
| 461 | sdp->sd_glockd_process[sdp->sd_glockd_num] = p; |
| 462 | } |
| 463 | |
| 464 | error = gfs2_glock_nq_num(sdp, |
| 465 | GFS2_MOUNT_LOCK, &gfs2_nondisk_glops, |
| 466 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE, |
| 467 | mount_gh); |
| 468 | if (error) { |
| 469 | fs_err(sdp, "can't acquire mount glock: %d\n", error); |
| 470 | goto fail; |
| 471 | } |
| 472 | |
| 473 | error = gfs2_glock_nq_num(sdp, |
| 474 | GFS2_LIVE_LOCK, &gfs2_nondisk_glops, |
| 475 | LM_ST_SHARED, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 476 | LM_FLAG_NOEXP | GL_EXACT, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 477 | &sdp->sd_live_gh); |
| 478 | if (error) { |
| 479 | fs_err(sdp, "can't acquire live glock: %d\n", error); |
| 480 | goto fail_mount; |
| 481 | } |
| 482 | |
| 483 | error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops, |
| 484 | CREATE, &sdp->sd_rename_gl); |
| 485 | if (error) { |
| 486 | fs_err(sdp, "can't create rename glock: %d\n", error); |
| 487 | goto fail_live; |
| 488 | } |
| 489 | |
| 490 | error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops, |
| 491 | CREATE, &sdp->sd_trans_gl); |
| 492 | if (error) { |
| 493 | fs_err(sdp, "can't create transaction glock: %d\n", error); |
| 494 | goto fail_rename; |
| 495 | } |
| 496 | set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags); |
| 497 | |
| 498 | return 0; |
| 499 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 500 | fail_trans: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 501 | gfs2_glock_put(sdp->sd_trans_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 502 | fail_rename: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 503 | gfs2_glock_put(sdp->sd_rename_gl); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 504 | fail_live: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 505 | gfs2_glock_dq_uninit(&sdp->sd_live_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 506 | fail_mount: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 507 | gfs2_glock_dq_uninit(mount_gh); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 508 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 509 | while (sdp->sd_glockd_num--) |
| 510 | kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]); |
| 511 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 512 | return error; |
| 513 | } |
| 514 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 515 | static int gfs2_lookup_root(struct super_block *sb, struct dentry **dptr, |
| 516 | u64 no_addr, const char *name) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 517 | { |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 518 | struct gfs2_sbd *sdp = sb->s_fs_info; |
| 519 | struct dentry *dentry; |
| 520 | struct inode *inode; |
| 521 | |
| 522 | inode = gfs2_inode_lookup(sb, DT_DIR, no_addr, 0, 0); |
| 523 | if (IS_ERR(inode)) { |
| 524 | fs_err(sdp, "can't read in %s inode: %ld\n", name, PTR_ERR(inode)); |
| 525 | return PTR_ERR(inode); |
| 526 | } |
| 527 | dentry = d_alloc_root(inode); |
| 528 | if (!dentry) { |
| 529 | fs_err(sdp, "can't alloc %s dentry\n", name); |
| 530 | iput(inode); |
| 531 | return -ENOMEM; |
| 532 | } |
| 533 | dentry->d_op = &gfs2_dops; |
| 534 | *dptr = dentry; |
| 535 | return 0; |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 536 | } |
| 537 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 538 | static int init_sb(struct gfs2_sbd *sdp, int silent) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 539 | { |
| 540 | struct super_block *sb = sdp->sd_vfs; |
| 541 | struct gfs2_holder sb_gh; |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 542 | u64 no_addr; |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 543 | int ret; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 544 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 545 | ret = gfs2_glock_nq_num(sdp, GFS2_SB_LOCK, &gfs2_meta_glops, |
| 546 | LM_ST_SHARED, 0, &sb_gh); |
| 547 | if (ret) { |
| 548 | fs_err(sdp, "can't acquire superblock glock: %d\n", ret); |
| 549 | return ret; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 550 | } |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 551 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 552 | ret = gfs2_read_sb(sdp, sb_gh.gh_gl, silent); |
| 553 | if (ret) { |
| 554 | fs_err(sdp, "can't read superblock: %d\n", ret); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 555 | goto out; |
| 556 | } |
| 557 | |
| 558 | /* Set up the buffer cache and SB for real */ |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 559 | if (sdp->sd_sb.sb_bsize < bdev_hardsect_size(sb->s_bdev)) { |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 560 | ret = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 561 | fs_err(sdp, "FS block size (%u) is too small for device " |
| 562 | "block size (%u)\n", |
| 563 | sdp->sd_sb.sb_bsize, bdev_hardsect_size(sb->s_bdev)); |
| 564 | goto out; |
| 565 | } |
| 566 | if (sdp->sd_sb.sb_bsize > PAGE_SIZE) { |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 567 | ret = -EINVAL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 568 | fs_err(sdp, "FS block size (%u) is too big for machine " |
| 569 | "page size (%u)\n", |
| 570 | sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE); |
| 571 | goto out; |
| 572 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 573 | sb_set_blocksize(sb, sdp->sd_sb.sb_bsize); |
| 574 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 575 | /* Get the root inode */ |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 576 | no_addr = sdp->sd_sb.sb_root_dir.no_addr; |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 577 | ret = gfs2_lookup_root(sb, &sdp->sd_root_dir, no_addr, "root"); |
| 578 | if (ret) |
| 579 | goto out; |
| 580 | |
| 581 | /* Get the master inode */ |
| 582 | no_addr = sdp->sd_sb.sb_master_dir.no_addr; |
| 583 | ret = gfs2_lookup_root(sb, &sdp->sd_master_dir, no_addr, "master"); |
| 584 | if (ret) { |
| 585 | dput(sdp->sd_root_dir); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 586 | goto out; |
| 587 | } |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 588 | sb->s_root = dget(sdp->sd_args.ar_meta ? sdp->sd_master_dir : sdp->sd_root_dir); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 589 | out: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 590 | gfs2_glock_dq_uninit(&sb_gh); |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 591 | return ret; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 592 | } |
| 593 | |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 594 | /** |
| 595 | * map_journal_extents - create a reusable "extent" mapping from all logical |
| 596 | * blocks to all physical blocks for the given journal. This will save |
| 597 | * us time when writing journal blocks. Most journals will have only one |
| 598 | * extent that maps all their logical blocks. That's because gfs2.mkfs |
| 599 | * arranges the journal blocks sequentially to maximize performance. |
| 600 | * So the extent would map the first block for the entire file length. |
| 601 | * However, gfs2_jadd can happen while file activity is happening, so |
| 602 | * those journals may not be sequential. Less likely is the case where |
| 603 | * the users created their own journals by mounting the metafs and |
| 604 | * laying it out. But it's still possible. These journals might have |
| 605 | * several extents. |
| 606 | * |
| 607 | * TODO: This should be done in bigger chunks rather than one block at a time, |
| 608 | * but since it's only done at mount time, I'm not worried about the |
| 609 | * time it takes. |
| 610 | */ |
| 611 | static int map_journal_extents(struct gfs2_sbd *sdp) |
| 612 | { |
| 613 | struct gfs2_jdesc *jd = sdp->sd_jdesc; |
| 614 | unsigned int lb; |
| 615 | u64 db, prev_db; /* logical block, disk block, prev disk block */ |
| 616 | struct gfs2_inode *ip = GFS2_I(jd->jd_inode); |
| 617 | struct gfs2_journal_extent *jext = NULL; |
| 618 | struct buffer_head bh; |
| 619 | int rc = 0; |
| 620 | |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 621 | prev_db = 0; |
| 622 | |
Bob Peterson | fa3742f | 2007-12-12 17:52:13 -0600 | [diff] [blame] | 623 | for (lb = 0; lb < ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift; lb++) { |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 624 | bh.b_state = 0; |
| 625 | bh.b_blocknr = 0; |
| 626 | bh.b_size = 1 << ip->i_inode.i_blkbits; |
| 627 | rc = gfs2_block_map(jd->jd_inode, lb, &bh, 0); |
| 628 | db = bh.b_blocknr; |
| 629 | if (rc || !db) { |
| 630 | printk(KERN_INFO "GFS2 journal mapping error %d: lb=" |
| 631 | "%u db=%llu\n", rc, lb, (unsigned long long)db); |
| 632 | break; |
| 633 | } |
| 634 | if (!prev_db || db != prev_db + 1) { |
| 635 | jext = kzalloc(sizeof(struct gfs2_journal_extent), |
| 636 | GFP_KERNEL); |
| 637 | if (!jext) { |
| 638 | printk(KERN_INFO "GFS2 error: out of memory " |
| 639 | "mapping journal extents.\n"); |
| 640 | rc = -ENOMEM; |
| 641 | break; |
| 642 | } |
| 643 | jext->dblock = db; |
| 644 | jext->lblock = lb; |
| 645 | jext->blocks = 1; |
| 646 | list_add_tail(&jext->extent_list, &jd->extent_list); |
| 647 | } else { |
| 648 | jext->blocks++; |
| 649 | } |
| 650 | prev_db = db; |
| 651 | } |
| 652 | return rc; |
| 653 | } |
| 654 | |
Steven Whitehouse | da755fd | 2008-01-30 15:34:04 +0000 | [diff] [blame] | 655 | static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp) |
| 656 | { |
Steven Whitehouse | 048bca2 | 2008-05-23 14:46:04 +0100 | [diff] [blame] | 657 | if (!sdp->sd_lockstruct.ls_ops->lm_others_may_mount) |
| 658 | return; |
Steven Whitehouse | da755fd | 2008-01-30 15:34:04 +0000 | [diff] [blame] | 659 | if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) |
| 660 | sdp->sd_lockstruct.ls_ops->lm_others_may_mount( |
| 661 | sdp->sd_lockstruct.ls_lockspace); |
| 662 | } |
| 663 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 664 | static int init_journal(struct gfs2_sbd *sdp, int undo) |
| 665 | { |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 666 | struct inode *master = sdp->sd_master_dir->d_inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 667 | struct gfs2_holder ji_gh; |
| 668 | struct task_struct *p; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 669 | struct gfs2_inode *ip; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 670 | int jindex = 1; |
| 671 | int error = 0; |
| 672 | |
| 673 | if (undo) { |
| 674 | jindex = 0; |
| 675 | goto fail_recoverd; |
| 676 | } |
| 677 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 678 | sdp->sd_jindex = gfs2_lookup_simple(master, "jindex"); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 679 | if (IS_ERR(sdp->sd_jindex)) { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 680 | fs_err(sdp, "can't lookup journal index: %d\n", error); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 681 | return PTR_ERR(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 682 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 683 | ip = GFS2_I(sdp->sd_jindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 684 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 685 | |
| 686 | /* Load in the journal index special file */ |
| 687 | |
| 688 | error = gfs2_jindex_hold(sdp, &ji_gh); |
| 689 | if (error) { |
| 690 | fs_err(sdp, "can't read journal index: %d\n", error); |
| 691 | goto fail; |
| 692 | } |
| 693 | |
| 694 | error = -EINVAL; |
| 695 | if (!gfs2_jindex_size(sdp)) { |
| 696 | fs_err(sdp, "no journals!\n"); |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 697 | goto fail_jindex; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 698 | } |
| 699 | |
| 700 | if (sdp->sd_args.ar_spectator) { |
| 701 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0); |
Steven Whitehouse | fd041f0 | 2007-11-08 14:55:03 +0000 | [diff] [blame] | 702 | atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 703 | } else { |
| 704 | if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) { |
| 705 | fs_err(sdp, "can't mount journal #%u\n", |
| 706 | sdp->sd_lockstruct.ls_jid); |
| 707 | fs_err(sdp, "there are only %u journals (0 - %u)\n", |
| 708 | gfs2_jindex_size(sdp), |
| 709 | gfs2_jindex_size(sdp) - 1); |
| 710 | goto fail_jindex; |
| 711 | } |
| 712 | sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid); |
| 713 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 714 | error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 715 | &gfs2_journal_glops, |
| 716 | LM_ST_EXCLUSIVE, LM_FLAG_NOEXP, |
| 717 | &sdp->sd_journal_gh); |
| 718 | if (error) { |
| 719 | fs_err(sdp, "can't acquire journal glock: %d\n", error); |
| 720 | goto fail_jindex; |
| 721 | } |
| 722 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 723 | ip = GFS2_I(sdp->sd_jdesc->jd_inode); |
| 724 | error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, |
Bob Peterson | 75be73a | 2007-08-08 17:08:14 -0500 | [diff] [blame] | 725 | LM_FLAG_NOEXP | GL_EXACT | GL_NOCACHE, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 726 | &sdp->sd_jinode_gh); |
| 727 | if (error) { |
| 728 | fs_err(sdp, "can't acquire journal inode glock: %d\n", |
| 729 | error); |
| 730 | goto fail_journal_gh; |
| 731 | } |
| 732 | |
| 733 | error = gfs2_jdesc_check(sdp->sd_jdesc); |
| 734 | if (error) { |
| 735 | fs_err(sdp, "my journal (%u) is bad: %d\n", |
| 736 | sdp->sd_jdesc->jd_jid, error); |
| 737 | goto fail_jinode_gh; |
| 738 | } |
Steven Whitehouse | fd041f0 | 2007-11-08 14:55:03 +0000 | [diff] [blame] | 739 | atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks); |
Bob Peterson | da6dd40 | 2007-12-11 18:49:21 -0600 | [diff] [blame] | 740 | |
| 741 | /* Map the extents for this journal's blocks */ |
| 742 | map_journal_extents(sdp); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 743 | } |
| 744 | |
| 745 | if (sdp->sd_lockstruct.ls_first) { |
| 746 | unsigned int x; |
| 747 | for (x = 0; x < sdp->sd_journals; x++) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 748 | error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x)); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 749 | if (error) { |
| 750 | fs_err(sdp, "error recovering journal %u: %d\n", |
| 751 | x, error); |
| 752 | goto fail_jinode_gh; |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | gfs2_lm_others_may_mount(sdp); |
| 757 | } else if (!sdp->sd_args.ar_spectator) { |
David Teigland | c63e31c | 2006-04-20 17:03:48 -0400 | [diff] [blame] | 758 | error = gfs2_recover_journal(sdp->sd_jdesc); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 759 | if (error) { |
| 760 | fs_err(sdp, "error recovering my journal: %d\n", error); |
| 761 | goto fail_jinode_gh; |
| 762 | } |
| 763 | } |
| 764 | |
| 765 | set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags); |
| 766 | gfs2_glock_dq_uninit(&ji_gh); |
| 767 | jindex = 0; |
| 768 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 769 | p = kthread_run(gfs2_recoverd, sdp, "gfs2_recoverd"); |
| 770 | error = IS_ERR(p); |
| 771 | if (error) { |
| 772 | fs_err(sdp, "can't start recoverd thread: %d\n", error); |
| 773 | goto fail_jinode_gh; |
| 774 | } |
| 775 | sdp->sd_recoverd_process = p; |
| 776 | |
| 777 | return 0; |
| 778 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 779 | fail_recoverd: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 780 | kthread_stop(sdp->sd_recoverd_process); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 781 | fail_jinode_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 782 | if (!sdp->sd_args.ar_spectator) |
| 783 | gfs2_glock_dq_uninit(&sdp->sd_jinode_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 784 | fail_journal_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 785 | if (!sdp->sd_args.ar_spectator) |
| 786 | gfs2_glock_dq_uninit(&sdp->sd_journal_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 787 | fail_jindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 788 | gfs2_jindex_free(sdp); |
| 789 | if (jindex) |
| 790 | gfs2_glock_dq_uninit(&ji_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 791 | fail: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 792 | iput(sdp->sd_jindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 793 | return error; |
| 794 | } |
| 795 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 796 | |
| 797 | static int init_inodes(struct gfs2_sbd *sdp, int undo) |
| 798 | { |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 799 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 800 | struct gfs2_inode *ip; |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 801 | struct inode *master = sdp->sd_master_dir->d_inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 802 | |
| 803 | if (undo) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 804 | goto fail_qinode; |
| 805 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 806 | error = init_journal(sdp, undo); |
| 807 | if (error) |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 808 | goto fail; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 809 | |
| 810 | /* Read in the master inode number inode */ |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 811 | sdp->sd_inum_inode = gfs2_lookup_simple(master, "inum"); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 812 | if (IS_ERR(sdp->sd_inum_inode)) { |
| 813 | error = PTR_ERR(sdp->sd_inum_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 814 | fs_err(sdp, "can't read in inum inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 815 | goto fail_journal; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 816 | } |
| 817 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 818 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 819 | /* Read in the master statfs inode */ |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 820 | sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs"); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 821 | if (IS_ERR(sdp->sd_statfs_inode)) { |
| 822 | error = PTR_ERR(sdp->sd_statfs_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 823 | fs_err(sdp, "can't read in statfs inode: %d\n", error); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 824 | goto fail_inum; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 825 | } |
| 826 | |
| 827 | /* Read in the resource index inode */ |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 828 | sdp->sd_rindex = gfs2_lookup_simple(master, "rindex"); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 829 | if (IS_ERR(sdp->sd_rindex)) { |
| 830 | error = PTR_ERR(sdp->sd_rindex); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 831 | fs_err(sdp, "can't get resource index inode: %d\n", error); |
| 832 | goto fail_statfs; |
| 833 | } |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 834 | ip = GFS2_I(sdp->sd_rindex); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 835 | set_bit(GLF_STICKY, &ip->i_gl->gl_flags); |
Bob Peterson | cf45b75 | 2008-01-31 10:31:39 -0600 | [diff] [blame] | 836 | sdp->sd_rindex_uptodate = 0; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 837 | |
| 838 | /* Read in the quota inode */ |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 839 | sdp->sd_quota_inode = gfs2_lookup_simple(master, "quota"); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 840 | if (IS_ERR(sdp->sd_quota_inode)) { |
| 841 | error = PTR_ERR(sdp->sd_quota_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 842 | fs_err(sdp, "can't get quota file inode: %d\n", error); |
| 843 | goto fail_rindex; |
| 844 | } |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 845 | return 0; |
| 846 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 847 | fail_qinode: |
| 848 | iput(sdp->sd_quota_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 849 | fail_rindex: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 850 | gfs2_clear_rgrpd(sdp); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 851 | iput(sdp->sd_rindex); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 852 | fail_statfs: |
| 853 | iput(sdp->sd_statfs_inode); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 854 | fail_inum: |
| 855 | iput(sdp->sd_inum_inode); |
| 856 | fail_journal: |
| 857 | init_journal(sdp, UNDO); |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 858 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 859 | return error; |
| 860 | } |
| 861 | |
| 862 | static int init_per_node(struct gfs2_sbd *sdp, int undo) |
| 863 | { |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 864 | struct inode *pn = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 865 | char buf[30]; |
| 866 | int error = 0; |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 867 | struct gfs2_inode *ip; |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 868 | struct inode *master = sdp->sd_master_dir->d_inode; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 869 | |
| 870 | if (sdp->sd_args.ar_spectator) |
| 871 | return 0; |
| 872 | |
| 873 | if (undo) |
| 874 | goto fail_qc_gh; |
| 875 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 876 | pn = gfs2_lookup_simple(master, "per_node"); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 877 | if (IS_ERR(pn)) { |
| 878 | error = PTR_ERR(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 879 | fs_err(sdp, "can't find per_node directory: %d\n", error); |
| 880 | return error; |
| 881 | } |
| 882 | |
| 883 | sprintf(buf, "inum_range%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 884 | sdp->sd_ir_inode = gfs2_lookup_simple(pn, buf); |
| 885 | if (IS_ERR(sdp->sd_ir_inode)) { |
| 886 | error = PTR_ERR(sdp->sd_ir_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 887 | fs_err(sdp, "can't find local \"ir\" file: %d\n", error); |
| 888 | goto fail; |
| 889 | } |
| 890 | |
| 891 | sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 892 | sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf); |
| 893 | if (IS_ERR(sdp->sd_sc_inode)) { |
| 894 | error = PTR_ERR(sdp->sd_sc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 895 | fs_err(sdp, "can't find local \"sc\" file: %d\n", error); |
| 896 | goto fail_ir_i; |
| 897 | } |
| 898 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 899 | sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 900 | sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf); |
| 901 | if (IS_ERR(sdp->sd_qc_inode)) { |
| 902 | error = PTR_ERR(sdp->sd_qc_inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 903 | fs_err(sdp, "can't find local \"qc\" file: %d\n", error); |
| 904 | goto fail_ut_i; |
| 905 | } |
| 906 | |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 907 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 908 | pn = NULL; |
| 909 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 910 | ip = GFS2_I(sdp->sd_ir_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 911 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 912 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 913 | &sdp->sd_ir_gh); |
| 914 | if (error) { |
| 915 | fs_err(sdp, "can't lock local \"ir\" file: %d\n", error); |
| 916 | goto fail_qc_i; |
| 917 | } |
| 918 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 919 | ip = GFS2_I(sdp->sd_sc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 920 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 921 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 922 | &sdp->sd_sc_gh); |
| 923 | if (error) { |
| 924 | fs_err(sdp, "can't lock local \"sc\" file: %d\n", error); |
| 925 | goto fail_ir_gh; |
| 926 | } |
| 927 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 928 | ip = GFS2_I(sdp->sd_qc_inode); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 929 | error = gfs2_glock_nq_init(ip->i_gl, |
Steven Whitehouse | 579b78a | 2006-04-26 14:58:26 -0400 | [diff] [blame] | 930 | LM_ST_EXCLUSIVE, 0, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 931 | &sdp->sd_qc_gh); |
| 932 | if (error) { |
| 933 | fs_err(sdp, "can't lock local \"qc\" file: %d\n", error); |
| 934 | goto fail_ut_gh; |
| 935 | } |
| 936 | |
| 937 | return 0; |
| 938 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 939 | fail_qc_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 940 | gfs2_glock_dq_uninit(&sdp->sd_qc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 941 | fail_ut_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 942 | gfs2_glock_dq_uninit(&sdp->sd_sc_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 943 | fail_ir_gh: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 944 | gfs2_glock_dq_uninit(&sdp->sd_ir_gh); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 945 | fail_qc_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 946 | iput(sdp->sd_qc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 947 | fail_ut_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 948 | iput(sdp->sd_sc_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 949 | fail_ir_i: |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 950 | iput(sdp->sd_ir_inode); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 951 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 952 | if (pn) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 953 | iput(pn); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 954 | return error; |
| 955 | } |
| 956 | |
| 957 | static int init_threads(struct gfs2_sbd *sdp, int undo) |
| 958 | { |
| 959 | struct task_struct *p; |
| 960 | int error = 0; |
| 961 | |
| 962 | if (undo) |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 963 | goto fail_quotad; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 964 | |
| 965 | sdp->sd_log_flush_time = jiffies; |
| 966 | sdp->sd_jindex_refresh_time = jiffies; |
| 967 | |
| 968 | p = kthread_run(gfs2_logd, sdp, "gfs2_logd"); |
| 969 | error = IS_ERR(p); |
| 970 | if (error) { |
| 971 | fs_err(sdp, "can't start logd thread: %d\n", error); |
| 972 | return error; |
| 973 | } |
| 974 | sdp->sd_logd_process = p; |
| 975 | |
| 976 | sdp->sd_statfs_sync_time = jiffies; |
| 977 | sdp->sd_quota_sync_time = jiffies; |
| 978 | |
| 979 | p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad"); |
| 980 | error = IS_ERR(p); |
| 981 | if (error) { |
| 982 | fs_err(sdp, "can't start quotad thread: %d\n", error); |
| 983 | goto fail; |
| 984 | } |
| 985 | sdp->sd_quotad_process = p; |
| 986 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 987 | return 0; |
| 988 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 989 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 990 | fail_quotad: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 991 | kthread_stop(sdp->sd_quotad_process); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 992 | fail: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 993 | kthread_stop(sdp->sd_logd_process); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 994 | return error; |
| 995 | } |
| 996 | |
| 997 | /** |
Steven Whitehouse | da755fd | 2008-01-30 15:34:04 +0000 | [diff] [blame] | 998 | * gfs2_lm_mount - mount a locking protocol |
| 999 | * @sdp: the filesystem |
| 1000 | * @args: mount arguements |
| 1001 | * @silent: if 1, don't complain if the FS isn't a GFS2 fs |
| 1002 | * |
| 1003 | * Returns: errno |
| 1004 | */ |
| 1005 | |
| 1006 | static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent) |
| 1007 | { |
| 1008 | char *proto = sdp->sd_proto_name; |
| 1009 | char *table = sdp->sd_table_name; |
Benjamin Marzinski | 58e9fee | 2008-03-14 13:52:52 -0500 | [diff] [blame] | 1010 | int flags = LM_MFLAG_CONV_NODROP; |
Steven Whitehouse | da755fd | 2008-01-30 15:34:04 +0000 | [diff] [blame] | 1011 | int error; |
| 1012 | |
| 1013 | if (sdp->sd_args.ar_spectator) |
| 1014 | flags |= LM_MFLAG_SPECTATOR; |
| 1015 | |
| 1016 | fs_info(sdp, "Trying to join cluster \"%s\", \"%s\"\n", proto, table); |
| 1017 | |
| 1018 | error = gfs2_mount_lockproto(proto, table, sdp->sd_args.ar_hostdata, |
| 1019 | gfs2_glock_cb, sdp, |
| 1020 | GFS2_MIN_LVB_SIZE, flags, |
| 1021 | &sdp->sd_lockstruct, &sdp->sd_kobj); |
| 1022 | if (error) { |
| 1023 | fs_info(sdp, "can't mount proto=%s, table=%s, hostdata=%s\n", |
| 1024 | proto, table, sdp->sd_args.ar_hostdata); |
| 1025 | goto out; |
| 1026 | } |
| 1027 | |
Steven Whitehouse | 048bca2 | 2008-05-23 14:46:04 +0100 | [diff] [blame] | 1028 | if (gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_ops) || |
Steven Whitehouse | da755fd | 2008-01-30 15:34:04 +0000 | [diff] [blame] | 1029 | gfs2_assert_warn(sdp, sdp->sd_lockstruct.ls_lvb_size >= |
| 1030 | GFS2_MIN_LVB_SIZE)) { |
| 1031 | gfs2_unmount_lockproto(&sdp->sd_lockstruct); |
| 1032 | goto out; |
| 1033 | } |
| 1034 | |
| 1035 | if (sdp->sd_args.ar_spectator) |
| 1036 | snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.s", table); |
| 1037 | else |
| 1038 | snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.%u", table, |
| 1039 | sdp->sd_lockstruct.ls_jid); |
| 1040 | |
| 1041 | fs_info(sdp, "Joined cluster. Now mounting FS...\n"); |
| 1042 | |
| 1043 | if ((sdp->sd_lockstruct.ls_flags & LM_LSFLAG_LOCAL) && |
| 1044 | !sdp->sd_args.ar_ignore_local_fs) { |
| 1045 | sdp->sd_args.ar_localflocks = 1; |
| 1046 | sdp->sd_args.ar_localcaching = 1; |
| 1047 | } |
| 1048 | |
| 1049 | out: |
| 1050 | return error; |
| 1051 | } |
| 1052 | |
| 1053 | void gfs2_lm_unmount(struct gfs2_sbd *sdp) |
| 1054 | { |
| 1055 | if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))) |
| 1056 | gfs2_unmount_lockproto(&sdp->sd_lockstruct); |
| 1057 | } |
| 1058 | |
| 1059 | /** |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1060 | * fill_super - Read in superblock |
| 1061 | * @sb: The VFS superblock |
| 1062 | * @data: Mount options |
| 1063 | * @silent: Don't complain if it's not a GFS2 filesystem |
| 1064 | * |
| 1065 | * Returns: errno |
| 1066 | */ |
| 1067 | |
| 1068 | static int fill_super(struct super_block *sb, void *data, int silent) |
| 1069 | { |
| 1070 | struct gfs2_sbd *sdp; |
| 1071 | struct gfs2_holder mount_gh; |
| 1072 | int error; |
| 1073 | |
| 1074 | sdp = init_sbd(sb); |
| 1075 | if (!sdp) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 1076 | printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1077 | return -ENOMEM; |
| 1078 | } |
| 1079 | |
| 1080 | error = gfs2_mount_args(sdp, (char *)data, 0); |
| 1081 | if (error) { |
Steven Whitehouse | d92a8d4 | 2006-02-27 10:57:14 -0500 | [diff] [blame] | 1082 | printk(KERN_WARNING "GFS2: can't parse mount arguments\n"); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1083 | goto fail; |
| 1084 | } |
| 1085 | |
Steven Whitehouse | 719ee34 | 2008-09-18 13:53:59 +0100 | [diff] [blame] | 1086 | sb->s_magic = GFS2_MAGIC; |
| 1087 | sb->s_op = &gfs2_super_ops; |
| 1088 | sb->s_export_op = &gfs2_export_ops; |
| 1089 | sb->s_time_gran = 1; |
| 1090 | sb->s_maxbytes = MAX_LFS_FILESIZE; |
Steven Whitehouse | 419c93e0 | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 1091 | |
| 1092 | /* Set up the buffer cache and fill in some fake block size values |
| 1093 | to allow us to read-in the on-disk superblock. */ |
| 1094 | sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK); |
| 1095 | sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits; |
| 1096 | sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift - |
| 1097 | GFS2_BASIC_BLOCK_SHIFT; |
| 1098 | sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1099 | |
| 1100 | error = init_names(sdp, silent); |
| 1101 | if (error) |
| 1102 | goto fail; |
| 1103 | |
Robert Peterson | 7c52b16 | 2007-03-16 10:26:37 +0000 | [diff] [blame] | 1104 | gfs2_create_debugfs_file(sdp); |
| 1105 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1106 | error = gfs2_sys_fs_add(sdp); |
| 1107 | if (error) |
| 1108 | goto fail; |
| 1109 | |
| 1110 | error = gfs2_lm_mount(sdp, silent); |
| 1111 | if (error) |
| 1112 | goto fail_sys; |
| 1113 | |
| 1114 | error = init_locking(sdp, &mount_gh, DO); |
| 1115 | if (error) |
| 1116 | goto fail_lm; |
| 1117 | |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1118 | error = init_sb(sdp, silent); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1119 | if (error) |
| 1120 | goto fail_locking; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1121 | |
| 1122 | error = init_inodes(sdp, DO); |
| 1123 | if (error) |
Steven Whitehouse | f42faf4 | 2006-01-30 18:34:10 +0000 | [diff] [blame] | 1124 | goto fail_sb; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1125 | |
| 1126 | error = init_per_node(sdp, DO); |
| 1127 | if (error) |
| 1128 | goto fail_inodes; |
| 1129 | |
| 1130 | error = gfs2_statfs_init(sdp); |
| 1131 | if (error) { |
| 1132 | fs_err(sdp, "can't initialize statfs subsystem: %d\n", error); |
| 1133 | goto fail_per_node; |
| 1134 | } |
| 1135 | |
| 1136 | error = init_threads(sdp, DO); |
| 1137 | if (error) |
| 1138 | goto fail_per_node; |
| 1139 | |
| 1140 | if (!(sb->s_flags & MS_RDONLY)) { |
| 1141 | error = gfs2_make_fs_rw(sdp); |
| 1142 | if (error) { |
| 1143 | fs_err(sdp, "can't make FS RW: %d\n", error); |
| 1144 | goto fail_threads; |
| 1145 | } |
| 1146 | } |
| 1147 | |
| 1148 | gfs2_glock_dq_uninit(&mount_gh); |
| 1149 | |
| 1150 | return 0; |
| 1151 | |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1152 | fail_threads: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1153 | init_threads(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1154 | fail_per_node: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1155 | init_per_node(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1156 | fail_inodes: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1157 | init_inodes(sdp, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1158 | fail_sb: |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1159 | if (sdp->sd_root_dir) |
| 1160 | dput(sdp->sd_root_dir); |
| 1161 | if (sdp->sd_master_dir) |
| 1162 | dput(sdp->sd_master_dir); |
| 1163 | sb->s_root = NULL; |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1164 | fail_locking: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1165 | init_locking(sdp, &mount_gh, UNDO); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1166 | fail_lm: |
Steven Whitehouse | 1bdad60 | 2008-06-03 14:09:53 +0100 | [diff] [blame] | 1167 | gfs2_gl_hash_clear(sdp); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1168 | gfs2_lm_unmount(sdp); |
| 1169 | while (invalidate_inodes(sb)) |
| 1170 | yield(); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1171 | fail_sys: |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1172 | gfs2_sys_fs_del(sdp); |
Steven Whitehouse | a91ea69 | 2006-09-04 12:04:26 -0400 | [diff] [blame] | 1173 | fail: |
Robert Peterson | 5f88209 | 2007-04-18 11:41:11 -0500 | [diff] [blame] | 1174 | gfs2_delete_debugfs_file(sdp); |
Steven Whitehouse | a2c4580 | 2006-09-08 10:13:03 -0400 | [diff] [blame] | 1175 | kfree(sdp); |
Steven Whitehouse | 5c676f6 | 2006-02-27 17:23:27 -0500 | [diff] [blame] | 1176 | sb->s_fs_info = NULL; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1177 | return error; |
| 1178 | } |
| 1179 | |
Andrew Morton | ccd6efd | 2006-06-30 02:16:34 -0700 | [diff] [blame] | 1180 | static int gfs2_get_sb(struct file_system_type *fs_type, int flags, |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1181 | const char *dev_name, void *data, struct vfsmount *mnt) |
| 1182 | { |
| 1183 | return get_sb_bdev(fs_type, flags, dev_name, data, fill_super, mnt); |
| 1184 | } |
| 1185 | |
| 1186 | static struct super_block *get_gfs2_sb(const char *dev_name) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1187 | { |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1188 | struct super_block *sb; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1189 | struct nameidata nd; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1190 | int error; |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 1191 | |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1192 | error = path_lookup(dev_name, LOOKUP_FOLLOW, &nd); |
| 1193 | if (error) { |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1194 | printk(KERN_WARNING "GFS2: path_lookup on %s returned error %d\n", |
| 1195 | dev_name, error); |
| 1196 | return NULL; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1197 | } |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1198 | sb = nd.path.dentry->d_inode->i_sb; |
| 1199 | if (sb && (sb->s_type == &gfs2_fs_type)) |
| 1200 | atomic_inc(&sb->s_active); |
| 1201 | else |
| 1202 | sb = NULL; |
Jan Blunck | 1d957f9 | 2008-02-14 19:34:35 -0800 | [diff] [blame] | 1203 | path_put(&nd.path); |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1204 | return sb; |
| 1205 | } |
| 1206 | |
| 1207 | static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags, |
| 1208 | const char *dev_name, void *data, struct vfsmount *mnt) |
| 1209 | { |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1210 | struct super_block *sb = NULL; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1211 | struct gfs2_sbd *sdp; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1212 | |
| 1213 | sb = get_gfs2_sb(dev_name); |
| 1214 | if (!sb) { |
| 1215 | printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n"); |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1216 | return -ENOENT; |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1217 | } |
Denis Cheng | 2d3ba1e | 2007-08-11 10:27:08 +0800 | [diff] [blame] | 1218 | sdp = sb->s_fs_info; |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1219 | mnt->mnt_sb = sb; |
| 1220 | mnt->mnt_root = dget(sdp->sd_master_dir); |
| 1221 | return 0; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1222 | } |
| 1223 | |
Steven Whitehouse | 419c93e0 | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 1224 | static void gfs2_kill_sb(struct super_block *sb) |
| 1225 | { |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1226 | struct gfs2_sbd *sdp = sb->s_fs_info; |
Abhijith Das | acd2c8a | 2008-09-15 08:54:06 -0500 | [diff] [blame] | 1227 | if (sdp) { |
| 1228 | gfs2_meta_syncfs(sdp); |
| 1229 | dput(sdp->sd_root_dir); |
| 1230 | dput(sdp->sd_master_dir); |
| 1231 | sdp->sd_root_dir = NULL; |
| 1232 | sdp->sd_master_dir = NULL; |
| 1233 | } |
Steven Whitehouse | 9b8df98 | 2008-08-08 13:45:13 +0100 | [diff] [blame] | 1234 | shrink_dcache_sb(sb); |
| 1235 | kill_block_super(sb); |
Abhijith Das | acd2c8a | 2008-09-15 08:54:06 -0500 | [diff] [blame] | 1236 | if (sdp) |
| 1237 | gfs2_delete_debugfs_file(sdp); |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1238 | } |
| 1239 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1240 | struct file_system_type gfs2_fs_type = { |
| 1241 | .name = "gfs2", |
| 1242 | .fs_flags = FS_REQUIRES_DEV, |
| 1243 | .get_sb = gfs2_get_sb, |
Steven Whitehouse | 419c93e0 | 2006-03-02 16:33:41 -0500 | [diff] [blame] | 1244 | .kill_sb = gfs2_kill_sb, |
| 1245 | .owner = THIS_MODULE, |
| 1246 | }; |
| 1247 | |
| 1248 | struct file_system_type gfs2meta_fs_type = { |
| 1249 | .name = "gfs2meta", |
| 1250 | .fs_flags = FS_REQUIRES_DEV, |
Abhijith Das | 8638460 | 2006-08-25 11:13:37 -0500 | [diff] [blame] | 1251 | .get_sb = gfs2_get_sb_meta, |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1252 | .owner = THIS_MODULE, |
| 1253 | }; |
| 1254 | |