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10#include <linux/sched.h>
11#include <linux/slab.h>
12#include <linux/spinlock.h>
13#include <linux/completion.h>
14#include <linux/buffer_head.h>
15#include <linux/blkdev.h>
16#include <linux/kthread.h>
17#include <linux/namei.h>
18#include <linux/mount.h>
19#include <linux/gfs2_ondisk.h>
20#include <linux/quotaops.h>
21
22#include "gfs2.h"
23#include "incore.h"
24#include "bmap.h"
25#include "glock.h"
26#include "glops.h"
27#include "inode.h"
28#include "recovery.h"
29#include "rgrp.h"
30#include "super.h"
31#include "sys.h"
32#include "util.h"
33#include "log.h"
34#include "quota.h"
35#include "dir.h"
36#include "trace_gfs2.h"
37
38#define DO 0
39#define UNDO 1
40
41
42
43
44
45
46
47static void gfs2_tune_init(struct gfs2_tune *gt)
48{
49 spin_lock_init(>->gt_spin);
50
51 gt->gt_quota_simul_sync = 64;
52 gt->gt_quota_warn_period = 10;
53 gt->gt_quota_scale_num = 1;
54 gt->gt_quota_scale_den = 1;
55 gt->gt_new_files_jdata = 0;
56 gt->gt_max_readahead = 1 << 18;
57 gt->gt_complain_secs = 10;
58}
59
60static struct gfs2_sbd *init_sbd(struct super_block *sb)
61{
62 struct gfs2_sbd *sdp;
63
64 sdp = kzalloc(sizeof(struct gfs2_sbd), GFP_KERNEL);
65 if (!sdp)
66 return NULL;
67
68 sb->s_fs_info = sdp;
69 sdp->sd_vfs = sb;
70 set_bit(SDF_NOJOURNALID, &sdp->sd_flags);
71 gfs2_tune_init(&sdp->sd_tune);
72
73 init_waitqueue_head(&sdp->sd_glock_wait);
74 atomic_set(&sdp->sd_glock_disposal, 0);
75 spin_lock_init(&sdp->sd_statfs_spin);
76
77 spin_lock_init(&sdp->sd_rindex_spin);
78 mutex_init(&sdp->sd_rindex_mutex);
79 INIT_LIST_HEAD(&sdp->sd_rindex_list);
80 INIT_LIST_HEAD(&sdp->sd_rindex_mru_list);
81
82 INIT_LIST_HEAD(&sdp->sd_jindex_list);
83 spin_lock_init(&sdp->sd_jindex_spin);
84 mutex_init(&sdp->sd_jindex_mutex);
85
86 INIT_LIST_HEAD(&sdp->sd_quota_list);
87 mutex_init(&sdp->sd_quota_mutex);
88 init_waitqueue_head(&sdp->sd_quota_wait);
89 INIT_LIST_HEAD(&sdp->sd_trunc_list);
90 spin_lock_init(&sdp->sd_trunc_lock);
91
92 spin_lock_init(&sdp->sd_log_lock);
93 atomic_set(&sdp->sd_log_pinned, 0);
94 INIT_LIST_HEAD(&sdp->sd_log_le_buf);
95 INIT_LIST_HEAD(&sdp->sd_log_le_revoke);
96 INIT_LIST_HEAD(&sdp->sd_log_le_rg);
97 INIT_LIST_HEAD(&sdp->sd_log_le_databuf);
98 INIT_LIST_HEAD(&sdp->sd_log_le_ordered);
99
100 init_waitqueue_head(&sdp->sd_log_waitq);
101 init_waitqueue_head(&sdp->sd_logd_waitq);
102 INIT_LIST_HEAD(&sdp->sd_ail1_list);
103 INIT_LIST_HEAD(&sdp->sd_ail2_list);
104
105 init_rwsem(&sdp->sd_log_flush_lock);
106 atomic_set(&sdp->sd_log_in_flight, 0);
107 init_waitqueue_head(&sdp->sd_log_flush_wait);
108
109 INIT_LIST_HEAD(&sdp->sd_revoke_list);
110
111 mutex_init(&sdp->sd_freeze_lock);
112
113 return sdp;
114}
115
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125
126
127
128static int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent)
129{
130 if (sb->sb_magic != GFS2_MAGIC ||
131 sb->sb_type != GFS2_METATYPE_SB) {
132 if (!silent)
133 printk(KERN_WARNING "GFS2: not a GFS2 filesystem\n");
134 return -EINVAL;
135 }
136
137
138
139 if (sb->sb_fs_format == GFS2_FORMAT_FS &&
140 sb->sb_multihost_format == GFS2_FORMAT_MULTI)
141 return 0;
142
143 fs_warn(sdp, "Unknown on-disk format, unable to mount\n");
144
145 return -EINVAL;
146}
147
148static void end_bio_io_page(struct bio *bio, int error)
149{
150 struct page *page = bio->bi_private;
151
152 if (!error)
153 SetPageUptodate(page);
154 else
155 printk(KERN_WARNING "gfs2: error %d reading superblock\n", error);
156 unlock_page(page);
157}
158
159static void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf)
160{
161 const struct gfs2_sb *str = buf;
162
163 sb->sb_magic = be32_to_cpu(str->sb_header.mh_magic);
164 sb->sb_type = be32_to_cpu(str->sb_header.mh_type);
165 sb->sb_format = be32_to_cpu(str->sb_header.mh_format);
166 sb->sb_fs_format = be32_to_cpu(str->sb_fs_format);
167 sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format);
168 sb->sb_bsize = be32_to_cpu(str->sb_bsize);
169 sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift);
170 sb->sb_master_dir.no_addr = be64_to_cpu(str->sb_master_dir.no_addr);
171 sb->sb_master_dir.no_formal_ino = be64_to_cpu(str->sb_master_dir.no_formal_ino);
172 sb->sb_root_dir.no_addr = be64_to_cpu(str->sb_root_dir.no_addr);
173 sb->sb_root_dir.no_formal_ino = be64_to_cpu(str->sb_root_dir.no_formal_ino);
174
175 memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN);
176 memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN);
177 memcpy(sb->sb_uuid, str->sb_uuid, 16);
178}
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198
199static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector)
200{
201 struct super_block *sb = sdp->sd_vfs;
202 struct gfs2_sb *p;
203 struct page *page;
204 struct bio *bio;
205
206 page = alloc_page(GFP_NOFS);
207 if (unlikely(!page))
208 return -ENOBUFS;
209
210 ClearPageUptodate(page);
211 ClearPageDirty(page);
212 lock_page(page);
213
214 bio = bio_alloc(GFP_NOFS, 1);
215 bio->bi_sector = sector * (sb->s_blocksize >> 9);
216 bio->bi_bdev = sb->s_bdev;
217 bio_add_page(bio, page, PAGE_SIZE, 0);
218
219 bio->bi_end_io = end_bio_io_page;
220 bio->bi_private = page;
221 submit_bio(READ_SYNC | REQ_META, bio);
222 wait_on_page_locked(page);
223 bio_put(bio);
224 if (!PageUptodate(page)) {
225 __free_page(page);
226 return -EIO;
227 }
228 p = kmap(page);
229 gfs2_sb_in(&sdp->sd_sb, p);
230 kunmap(page);
231 __free_page(page);
232 return 0;
233}
234
235
236
237
238
239
240
241
242static int gfs2_read_sb(struct gfs2_sbd *sdp, int silent)
243{
244 u32 hash_blocks, ind_blocks, leaf_blocks;
245 u32 tmp_blocks;
246 unsigned int x;
247 int error;
248
249 error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
250 if (error) {
251 if (!silent)
252 fs_err(sdp, "can't read superblock\n");
253 return error;
254 }
255
256 error = gfs2_check_sb(sdp, &sdp->sd_sb, silent);
257 if (error)
258 return error;
259
260 sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift -
261 GFS2_BASIC_BLOCK_SHIFT;
262 sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift;
263 sdp->sd_diptrs = (sdp->sd_sb.sb_bsize -
264 sizeof(struct gfs2_dinode)) / sizeof(u64);
265 sdp->sd_inptrs = (sdp->sd_sb.sb_bsize -
266 sizeof(struct gfs2_meta_header)) / sizeof(u64);
267 sdp->sd_jbsize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header);
268 sdp->sd_hash_bsize = sdp->sd_sb.sb_bsize / 2;
269 sdp->sd_hash_bsize_shift = sdp->sd_sb.sb_bsize_shift - 1;
270 sdp->sd_hash_ptrs = sdp->sd_hash_bsize / sizeof(u64);
271 sdp->sd_qc_per_block = (sdp->sd_sb.sb_bsize -
272 sizeof(struct gfs2_meta_header)) /
273 sizeof(struct gfs2_quota_change);
274
275
276
277 hash_blocks = DIV_ROUND_UP(sizeof(u64) * (1 << GFS2_DIR_MAX_DEPTH),
278 sdp->sd_jbsize);
279
280 ind_blocks = 0;
281 for (tmp_blocks = hash_blocks; tmp_blocks > sdp->sd_diptrs;) {
282 tmp_blocks = DIV_ROUND_UP(tmp_blocks, sdp->sd_inptrs);
283 ind_blocks += tmp_blocks;
284 }
285
286 leaf_blocks = 2 + GFS2_DIR_MAX_DEPTH;
287
288 sdp->sd_max_dirres = hash_blocks + ind_blocks + leaf_blocks;
289
290 sdp->sd_heightsize[0] = sdp->sd_sb.sb_bsize -
291 sizeof(struct gfs2_dinode);
292 sdp->sd_heightsize[1] = sdp->sd_sb.sb_bsize * sdp->sd_diptrs;
293 for (x = 2;; x++) {
294 u64 space, d;
295 u32 m;
296
297 space = sdp->sd_heightsize[x - 1] * sdp->sd_inptrs;
298 d = space;
299 m = do_div(d, sdp->sd_inptrs);
300
301 if (d != sdp->sd_heightsize[x - 1] || m)
302 break;
303 sdp->sd_heightsize[x] = space;
304 }
305 sdp->sd_max_height = x;
306 sdp->sd_heightsize[x] = ~0;
307 gfs2_assert(sdp, sdp->sd_max_height <= GFS2_MAX_META_HEIGHT);
308
309 sdp->sd_jheightsize[0] = sdp->sd_sb.sb_bsize -
310 sizeof(struct gfs2_dinode);
311 sdp->sd_jheightsize[1] = sdp->sd_jbsize * sdp->sd_diptrs;
312 for (x = 2;; x++) {
313 u64 space, d;
314 u32 m;
315
316 space = sdp->sd_jheightsize[x - 1] * sdp->sd_inptrs;
317 d = space;
318 m = do_div(d, sdp->sd_inptrs);
319
320 if (d != sdp->sd_jheightsize[x - 1] || m)
321 break;
322 sdp->sd_jheightsize[x] = space;
323 }
324 sdp->sd_max_jheight = x;
325 sdp->sd_jheightsize[x] = ~0;
326 gfs2_assert(sdp, sdp->sd_max_jheight <= GFS2_MAX_META_HEIGHT);
327
328 return 0;
329}
330
331static int init_names(struct gfs2_sbd *sdp, int silent)
332{
333 char *proto, *table;
334 int error = 0;
335
336 proto = sdp->sd_args.ar_lockproto;
337 table = sdp->sd_args.ar_locktable;
338
339
340
341 if (!proto[0] || !table[0]) {
342 error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
343 if (error)
344 return error;
345
346 error = gfs2_check_sb(sdp, &sdp->sd_sb, silent);
347 if (error)
348 goto out;
349
350 if (!proto[0])
351 proto = sdp->sd_sb.sb_lockproto;
352 if (!table[0])
353 table = sdp->sd_sb.sb_locktable;
354 }
355
356 if (!table[0])
357 table = sdp->sd_vfs->s_id;
358
359 strlcpy(sdp->sd_proto_name, proto, GFS2_FSNAME_LEN);
360 strlcpy(sdp->sd_table_name, table, GFS2_FSNAME_LEN);
361
362 table = sdp->sd_table_name;
363 while ((table = strchr(table, '/')))
364 *table = '_';
365
366out:
367 return error;
368}
369
370static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
371 int undo)
372{
373 int error = 0;
374
375 if (undo)
376 goto fail_trans;
377
378 error = gfs2_glock_nq_num(sdp,
379 GFS2_MOUNT_LOCK, &gfs2_nondisk_glops,
380 LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE,
381 mount_gh);
382 if (error) {
383 fs_err(sdp, "can't acquire mount glock: %d\n", error);
384 goto fail;
385 }
386
387 error = gfs2_glock_nq_num(sdp,
388 GFS2_LIVE_LOCK, &gfs2_nondisk_glops,
389 LM_ST_SHARED,
390 LM_FLAG_NOEXP | GL_EXACT,
391 &sdp->sd_live_gh);
392 if (error) {
393 fs_err(sdp, "can't acquire live glock: %d\n", error);
394 goto fail_mount;
395 }
396
397 error = gfs2_glock_get(sdp, GFS2_RENAME_LOCK, &gfs2_nondisk_glops,
398 CREATE, &sdp->sd_rename_gl);
399 if (error) {
400 fs_err(sdp, "can't create rename glock: %d\n", error);
401 goto fail_live;
402 }
403
404 error = gfs2_glock_get(sdp, GFS2_TRANS_LOCK, &gfs2_trans_glops,
405 CREATE, &sdp->sd_trans_gl);
406 if (error) {
407 fs_err(sdp, "can't create transaction glock: %d\n", error);
408 goto fail_rename;
409 }
410
411 return 0;
412
413fail_trans:
414 gfs2_glock_put(sdp->sd_trans_gl);
415fail_rename:
416 gfs2_glock_put(sdp->sd_rename_gl);
417fail_live:
418 gfs2_glock_dq_uninit(&sdp->sd_live_gh);
419fail_mount:
420 gfs2_glock_dq_uninit(mount_gh);
421fail:
422 return error;
423}
424
425static int gfs2_lookup_root(struct super_block *sb, struct dentry **dptr,
426 u64 no_addr, const char *name)
427{
428 struct gfs2_sbd *sdp = sb->s_fs_info;
429 struct dentry *dentry;
430 struct inode *inode;
431
432 inode = gfs2_inode_lookup(sb, DT_DIR, no_addr, 0);
433 if (IS_ERR(inode)) {
434 fs_err(sdp, "can't read in %s inode: %ld\n", name, PTR_ERR(inode));
435 return PTR_ERR(inode);
436 }
437 dentry = d_alloc_root(inode);
438 if (!dentry) {
439 fs_err(sdp, "can't alloc %s dentry\n", name);
440 iput(inode);
441 return -ENOMEM;
442 }
443 *dptr = dentry;
444 return 0;
445}
446
447static int init_sb(struct gfs2_sbd *sdp, int silent)
448{
449 struct super_block *sb = sdp->sd_vfs;
450 struct gfs2_holder sb_gh;
451 u64 no_addr;
452 int ret;
453
454 ret = gfs2_glock_nq_num(sdp, GFS2_SB_LOCK, &gfs2_meta_glops,
455 LM_ST_SHARED, 0, &sb_gh);
456 if (ret) {
457 fs_err(sdp, "can't acquire superblock glock: %d\n", ret);
458 return ret;
459 }
460
461 ret = gfs2_read_sb(sdp, silent);
462 if (ret) {
463 fs_err(sdp, "can't read superblock: %d\n", ret);
464 goto out;
465 }
466
467
468 if (sdp->sd_sb.sb_bsize < bdev_logical_block_size(sb->s_bdev)) {
469 ret = -EINVAL;
470 fs_err(sdp, "FS block size (%u) is too small for device "
471 "block size (%u)\n",
472 sdp->sd_sb.sb_bsize, bdev_logical_block_size(sb->s_bdev));
473 goto out;
474 }
475 if (sdp->sd_sb.sb_bsize > PAGE_SIZE) {
476 ret = -EINVAL;
477 fs_err(sdp, "FS block size (%u) is too big for machine "
478 "page size (%u)\n",
479 sdp->sd_sb.sb_bsize, (unsigned int)PAGE_SIZE);
480 goto out;
481 }
482 sb_set_blocksize(sb, sdp->sd_sb.sb_bsize);
483
484
485 no_addr = sdp->sd_sb.sb_root_dir.no_addr;
486 ret = gfs2_lookup_root(sb, &sdp->sd_root_dir, no_addr, "root");
487 if (ret)
488 goto out;
489
490
491 no_addr = sdp->sd_sb.sb_master_dir.no_addr;
492 ret = gfs2_lookup_root(sb, &sdp->sd_master_dir, no_addr, "master");
493 if (ret) {
494 dput(sdp->sd_root_dir);
495 goto out;
496 }
497 sb->s_root = dget(sdp->sd_args.ar_meta ? sdp->sd_master_dir : sdp->sd_root_dir);
498out:
499 gfs2_glock_dq_uninit(&sb_gh);
500 return ret;
501}
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519
520static int map_journal_extents(struct gfs2_sbd *sdp)
521{
522 struct gfs2_jdesc *jd = sdp->sd_jdesc;
523 unsigned int lb;
524 u64 db, prev_db;
525 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
526 struct gfs2_journal_extent *jext = NULL;
527 struct buffer_head bh;
528 int rc = 0;
529
530 prev_db = 0;
531
532 for (lb = 0; lb < i_size_read(jd->jd_inode) >> sdp->sd_sb.sb_bsize_shift; lb++) {
533 bh.b_state = 0;
534 bh.b_blocknr = 0;
535 bh.b_size = 1 << ip->i_inode.i_blkbits;
536 rc = gfs2_block_map(jd->jd_inode, lb, &bh, 0);
537 db = bh.b_blocknr;
538 if (rc || !db) {
539 printk(KERN_INFO "GFS2 journal mapping error %d: lb="
540 "%u db=%llu\n", rc, lb, (unsigned long long)db);
541 break;
542 }
543 if (!prev_db || db != prev_db + 1) {
544 jext = kzalloc(sizeof(struct gfs2_journal_extent),
545 GFP_KERNEL);
546 if (!jext) {
547 printk(KERN_INFO "GFS2 error: out of memory "
548 "mapping journal extents.\n");
549 rc = -ENOMEM;
550 break;
551 }
552 jext->dblock = db;
553 jext->lblock = lb;
554 jext->blocks = 1;
555 list_add_tail(&jext->extent_list, &jd->extent_list);
556 } else {
557 jext->blocks++;
558 }
559 prev_db = db;
560 }
561 return rc;
562}
563
564static void gfs2_others_may_mount(struct gfs2_sbd *sdp)
565{
566 char *message = "FIRSTMOUNT=Done";
567 char *envp[] = { message, NULL };
568 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
569 ls->ls_first_done = 1;
570 kobject_uevent_env(&sdp->sd_kobj, KOBJ_CHANGE, envp);
571}
572
573
574
575
576
577
578
579
580
581static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
582{
583 struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex);
584 struct qstr name;
585 char buf[20];
586 struct gfs2_jdesc *jd;
587 int error;
588
589 name.name = buf;
590
591 mutex_lock(&sdp->sd_jindex_mutex);
592
593 for (;;) {
594 error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh);
595 if (error)
596 break;
597
598 name.len = sprintf(buf, "journal%u", sdp->sd_journals);
599 name.hash = gfs2_disk_hash(name.name, name.len);
600
601 error = gfs2_dir_check(sdp->sd_jindex, &name, NULL);
602 if (error == -ENOENT) {
603 error = 0;
604 break;
605 }
606
607 gfs2_glock_dq_uninit(ji_gh);
608
609 if (error)
610 break;
611
612 error = -ENOMEM;
613 jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL);
614 if (!jd)
615 break;
616
617 INIT_LIST_HEAD(&jd->extent_list);
618 INIT_WORK(&jd->jd_work, gfs2_recover_func);
619 jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
620 if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
621 if (!jd->jd_inode)
622 error = -ENOENT;
623 else
624 error = PTR_ERR(jd->jd_inode);
625 kfree(jd);
626 break;
627 }
628
629 spin_lock(&sdp->sd_jindex_spin);
630 jd->jd_jid = sdp->sd_journals++;
631 list_add_tail(&jd->jd_list, &sdp->sd_jindex_list);
632 spin_unlock(&sdp->sd_jindex_spin);
633 }
634
635 mutex_unlock(&sdp->sd_jindex_mutex);
636
637 return error;
638}
639
640static int init_journal(struct gfs2_sbd *sdp, int undo)
641{
642 struct inode *master = sdp->sd_master_dir->d_inode;
643 struct gfs2_holder ji_gh;
644 struct gfs2_inode *ip;
645 int jindex = 1;
646 int error = 0;
647
648 if (undo) {
649 jindex = 0;
650 goto fail_jinode_gh;
651 }
652
653 sdp->sd_jindex = gfs2_lookup_simple(master, "jindex");
654 if (IS_ERR(sdp->sd_jindex)) {
655 fs_err(sdp, "can't lookup journal index: %d\n", error);
656 return PTR_ERR(sdp->sd_jindex);
657 }
658 ip = GFS2_I(sdp->sd_jindex);
659
660
661
662 error = gfs2_jindex_hold(sdp, &ji_gh);
663 if (error) {
664 fs_err(sdp, "can't read journal index: %d\n", error);
665 goto fail;
666 }
667
668 error = -EUSERS;
669 if (!gfs2_jindex_size(sdp)) {
670 fs_err(sdp, "no journals!\n");
671 goto fail_jindex;
672 }
673
674 if (sdp->sd_args.ar_spectator) {
675 sdp->sd_jdesc = gfs2_jdesc_find(sdp, 0);
676 atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks);
677 atomic_set(&sdp->sd_log_thresh1, 2*sdp->sd_jdesc->jd_blocks/5);
678 atomic_set(&sdp->sd_log_thresh2, 4*sdp->sd_jdesc->jd_blocks/5);
679 } else {
680 if (sdp->sd_lockstruct.ls_jid >= gfs2_jindex_size(sdp)) {
681 fs_err(sdp, "can't mount journal #%u\n",
682 sdp->sd_lockstruct.ls_jid);
683 fs_err(sdp, "there are only %u journals (0 - %u)\n",
684 gfs2_jindex_size(sdp),
685 gfs2_jindex_size(sdp) - 1);
686 goto fail_jindex;
687 }
688 sdp->sd_jdesc = gfs2_jdesc_find(sdp, sdp->sd_lockstruct.ls_jid);
689
690 error = gfs2_glock_nq_num(sdp, sdp->sd_lockstruct.ls_jid,
691 &gfs2_journal_glops,
692 LM_ST_EXCLUSIVE, LM_FLAG_NOEXP,
693 &sdp->sd_journal_gh);
694 if (error) {
695 fs_err(sdp, "can't acquire journal glock: %d\n", error);
696 goto fail_jindex;
697 }
698
699 ip = GFS2_I(sdp->sd_jdesc->jd_inode);
700 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED,
701 LM_FLAG_NOEXP | GL_EXACT | GL_NOCACHE,
702 &sdp->sd_jinode_gh);
703 if (error) {
704 fs_err(sdp, "can't acquire journal inode glock: %d\n",
705 error);
706 goto fail_journal_gh;
707 }
708
709 error = gfs2_jdesc_check(sdp->sd_jdesc);
710 if (error) {
711 fs_err(sdp, "my journal (%u) is bad: %d\n",
712 sdp->sd_jdesc->jd_jid, error);
713 goto fail_jinode_gh;
714 }
715 atomic_set(&sdp->sd_log_blks_free, sdp->sd_jdesc->jd_blocks);
716 atomic_set(&sdp->sd_log_thresh1, 2*sdp->sd_jdesc->jd_blocks/5);
717 atomic_set(&sdp->sd_log_thresh2, 4*sdp->sd_jdesc->jd_blocks/5);
718
719
720 map_journal_extents(sdp);
721 }
722 trace_gfs2_log_blocks(sdp, atomic_read(&sdp->sd_log_blks_free));
723
724 if (sdp->sd_lockstruct.ls_first) {
725 unsigned int x;
726 for (x = 0; x < sdp->sd_journals; x++) {
727 error = gfs2_recover_journal(gfs2_jdesc_find(sdp, x),
728 true);
729 if (error) {
730 fs_err(sdp, "error recovering journal %u: %d\n",
731 x, error);
732 goto fail_jinode_gh;
733 }
734 }
735
736 gfs2_others_may_mount(sdp);
737 } else if (!sdp->sd_args.ar_spectator) {
738 error = gfs2_recover_journal(sdp->sd_jdesc, true);
739 if (error) {
740 fs_err(sdp, "error recovering my journal: %d\n", error);
741 goto fail_jinode_gh;
742 }
743 }
744
745 set_bit(SDF_JOURNAL_CHECKED, &sdp->sd_flags);
746 gfs2_glock_dq_uninit(&ji_gh);
747 jindex = 0;
748
749 return 0;
750
751fail_jinode_gh:
752 if (!sdp->sd_args.ar_spectator)
753 gfs2_glock_dq_uninit(&sdp->sd_jinode_gh);
754fail_journal_gh:
755 if (!sdp->sd_args.ar_spectator)
756 gfs2_glock_dq_uninit(&sdp->sd_journal_gh);
757fail_jindex:
758 gfs2_jindex_free(sdp);
759 if (jindex)
760 gfs2_glock_dq_uninit(&ji_gh);
761fail:
762 iput(sdp->sd_jindex);
763 return error;
764}
765
766
767static int init_inodes(struct gfs2_sbd *sdp, int undo)
768{
769 int error = 0;
770 struct gfs2_inode *ip;
771 struct inode *master = sdp->sd_master_dir->d_inode;
772
773 if (undo)
774 goto fail_qinode;
775
776 error = init_journal(sdp, undo);
777 if (error)
778 goto fail;
779
780
781 sdp->sd_statfs_inode = gfs2_lookup_simple(master, "statfs");
782 if (IS_ERR(sdp->sd_statfs_inode)) {
783 error = PTR_ERR(sdp->sd_statfs_inode);
784 fs_err(sdp, "can't read in statfs inode: %d\n", error);
785 goto fail_journal;
786 }
787
788
789 sdp->sd_rindex = gfs2_lookup_simple(master, "rindex");
790 if (IS_ERR(sdp->sd_rindex)) {
791 error = PTR_ERR(sdp->sd_rindex);
792 fs_err(sdp, "can't get resource index inode: %d\n", error);
793 goto fail_statfs;
794 }
795 ip = GFS2_I(sdp->sd_rindex);
796 sdp->sd_rindex_uptodate = 0;
797
798
799 sdp->sd_quota_inode = gfs2_lookup_simple(master, "quota");
800 if (IS_ERR(sdp->sd_quota_inode)) {
801 error = PTR_ERR(sdp->sd_quota_inode);
802 fs_err(sdp, "can't get quota file inode: %d\n", error);
803 goto fail_rindex;
804 }
805 return 0;
806
807fail_qinode:
808 iput(sdp->sd_quota_inode);
809fail_rindex:
810 gfs2_clear_rgrpd(sdp);
811 iput(sdp->sd_rindex);
812fail_statfs:
813 iput(sdp->sd_statfs_inode);
814fail_journal:
815 init_journal(sdp, UNDO);
816fail:
817 return error;
818}
819
820static int init_per_node(struct gfs2_sbd *sdp, int undo)
821{
822 struct inode *pn = NULL;
823 char buf[30];
824 int error = 0;
825 struct gfs2_inode *ip;
826 struct inode *master = sdp->sd_master_dir->d_inode;
827
828 if (sdp->sd_args.ar_spectator)
829 return 0;
830
831 if (undo)
832 goto fail_qc_gh;
833
834 pn = gfs2_lookup_simple(master, "per_node");
835 if (IS_ERR(pn)) {
836 error = PTR_ERR(pn);
837 fs_err(sdp, "can't find per_node directory: %d\n", error);
838 return error;
839 }
840
841 sprintf(buf, "statfs_change%u", sdp->sd_jdesc->jd_jid);
842 sdp->sd_sc_inode = gfs2_lookup_simple(pn, buf);
843 if (IS_ERR(sdp->sd_sc_inode)) {
844 error = PTR_ERR(sdp->sd_sc_inode);
845 fs_err(sdp, "can't find local \"sc\" file: %d\n", error);
846 goto fail;
847 }
848
849 sprintf(buf, "quota_change%u", sdp->sd_jdesc->jd_jid);
850 sdp->sd_qc_inode = gfs2_lookup_simple(pn, buf);
851 if (IS_ERR(sdp->sd_qc_inode)) {
852 error = PTR_ERR(sdp->sd_qc_inode);
853 fs_err(sdp, "can't find local \"qc\" file: %d\n", error);
854 goto fail_ut_i;
855 }
856
857 iput(pn);
858 pn = NULL;
859
860 ip = GFS2_I(sdp->sd_sc_inode);
861 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
862 &sdp->sd_sc_gh);
863 if (error) {
864 fs_err(sdp, "can't lock local \"sc\" file: %d\n", error);
865 goto fail_qc_i;
866 }
867
868 ip = GFS2_I(sdp->sd_qc_inode);
869 error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0,
870 &sdp->sd_qc_gh);
871 if (error) {
872 fs_err(sdp, "can't lock local \"qc\" file: %d\n", error);
873 goto fail_ut_gh;
874 }
875
876 return 0;
877
878fail_qc_gh:
879 gfs2_glock_dq_uninit(&sdp->sd_qc_gh);
880fail_ut_gh:
881 gfs2_glock_dq_uninit(&sdp->sd_sc_gh);
882fail_qc_i:
883 iput(sdp->sd_qc_inode);
884fail_ut_i:
885 iput(sdp->sd_sc_inode);
886fail:
887 if (pn)
888 iput(pn);
889 return error;
890}
891
892static int init_threads(struct gfs2_sbd *sdp, int undo)
893{
894 struct task_struct *p;
895 int error = 0;
896
897 if (undo)
898 goto fail_quotad;
899
900 p = kthread_run(gfs2_logd, sdp, "gfs2_logd");
901 error = IS_ERR(p);
902 if (error) {
903 fs_err(sdp, "can't start logd thread: %d\n", error);
904 return error;
905 }
906 sdp->sd_logd_process = p;
907
908 p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad");
909 error = IS_ERR(p);
910 if (error) {
911 fs_err(sdp, "can't start quotad thread: %d\n", error);
912 goto fail;
913 }
914 sdp->sd_quotad_process = p;
915
916 return 0;
917
918
919fail_quotad:
920 kthread_stop(sdp->sd_quotad_process);
921fail:
922 kthread_stop(sdp->sd_logd_process);
923 return error;
924}
925
926static const match_table_t nolock_tokens = {
927 { Opt_jid, "jid=%d\n", },
928 { Opt_err, NULL },
929};
930
931static void nolock_put_lock(struct kmem_cache *cachep, struct gfs2_glock *gl)
932{
933 struct gfs2_sbd *sdp = gl->gl_sbd;
934 kmem_cache_free(cachep, gl);
935 if (atomic_dec_and_test(&sdp->sd_glock_disposal))
936 wake_up(&sdp->sd_glock_wait);
937}
938
939static const struct lm_lockops nolock_ops = {
940 .lm_proto_name = "lock_nolock",
941 .lm_put_lock = nolock_put_lock,
942 .lm_tokens = &nolock_tokens,
943};
944
945
946
947
948
949
950
951
952
953
954static int gfs2_lm_mount(struct gfs2_sbd *sdp, int silent)
955{
956 const struct lm_lockops *lm;
957 struct lm_lockstruct *ls = &sdp->sd_lockstruct;
958 struct gfs2_args *args = &sdp->sd_args;
959 const char *proto = sdp->sd_proto_name;
960 const char *table = sdp->sd_table_name;
961 const char *fsname;
962 char *o, *options;
963 int ret;
964
965 if (!strcmp("lock_nolock", proto)) {
966 lm = &nolock_ops;
967 sdp->sd_args.ar_localflocks = 1;
968#ifdef CONFIG_GFS2_FS_LOCKING_DLM
969 } else if (!strcmp("lock_dlm", proto)) {
970 lm = &gfs2_dlm_ops;
971#endif
972 } else {
973 printk(KERN_INFO "GFS2: can't find protocol %s\n", proto);
974 return -ENOENT;
975 }
976
977 fs_info(sdp, "Trying to join cluster \"%s\", \"%s\"\n", proto, table);
978
979 ls->ls_ops = lm;
980 ls->ls_first = 1;
981
982 for (options = args->ar_hostdata; (o = strsep(&options, ":")); ) {
983 substring_t tmp[MAX_OPT_ARGS];
984 int token, option;
985
986 if (!o || !*o)
987 continue;
988
989 token = match_token(o, *lm->lm_tokens, tmp);
990 switch (token) {
991 case Opt_jid:
992 ret = match_int(&tmp[0], &option);
993 if (ret || option < 0)
994 goto hostdata_error;
995 if (test_and_clear_bit(SDF_NOJOURNALID, &sdp->sd_flags))
996 ls->ls_jid = option;
997 break;
998 case Opt_id:
999
1000 break;
1001 case Opt_first:
1002 ret = match_int(&tmp[0], &option);
1003 if (ret || (option != 0 && option != 1))
1004 goto hostdata_error;
1005 ls->ls_first = option;
1006 break;
1007 case Opt_nodir:
1008 ret = match_int(&tmp[0], &option);
1009 if (ret || (option != 0 && option != 1))
1010 goto hostdata_error;
1011 ls->ls_nodir = option;
1012 break;
1013 case Opt_err:
1014 default:
1015hostdata_error:
1016 fs_info(sdp, "unknown hostdata (%s)\n", o);
1017 return -EINVAL;
1018 }
1019 }
1020
1021 if (sdp->sd_args.ar_spectator)
1022 snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.s", table);
1023 else
1024 snprintf(sdp->sd_fsname, GFS2_FSNAME_LEN, "%s.%u", table,
1025 sdp->sd_lockstruct.ls_jid);
1026
1027 fsname = strchr(table, ':');
1028 if (fsname)
1029 fsname++;
1030 if (lm->lm_mount == NULL) {
1031 fs_info(sdp, "Now mounting FS...\n");
1032 return 0;
1033 }
1034 ret = lm->lm_mount(sdp, fsname);
1035 if (ret == 0)
1036 fs_info(sdp, "Joined cluster. Now mounting FS...\n");
1037 return ret;
1038}
1039
1040void gfs2_lm_unmount(struct gfs2_sbd *sdp)
1041{
1042 const struct lm_lockops *lm = sdp->sd_lockstruct.ls_ops;
1043 if (likely(!test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) &&
1044 lm->lm_unmount)
1045 lm->lm_unmount(sdp);
1046}
1047
1048static int gfs2_journalid_wait(void *word)
1049{
1050 if (signal_pending(current))
1051 return -EINTR;
1052 schedule();
1053 return 0;
1054}
1055
1056static int wait_on_journal(struct gfs2_sbd *sdp)
1057{
1058 if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL)
1059 return 0;
1060
1061 return wait_on_bit(&sdp->sd_flags, SDF_NOJOURNALID, gfs2_journalid_wait, TASK_INTERRUPTIBLE);
1062}
1063
1064void gfs2_online_uevent(struct gfs2_sbd *sdp)
1065{
1066 struct super_block *sb = sdp->sd_vfs;
1067 char ro[20];
1068 char spectator[20];
1069 char *envp[] = { ro, spectator, NULL };
1070 sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
1071 sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
1072 kobject_uevent_env(&sdp->sd_kobj, KOBJ_ONLINE, envp);
1073}
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent)
1085{
1086 struct gfs2_sbd *sdp;
1087 struct gfs2_holder mount_gh;
1088 int error;
1089
1090 sdp = init_sbd(sb);
1091 if (!sdp) {
1092 printk(KERN_WARNING "GFS2: can't alloc struct gfs2_sbd\n");
1093 return -ENOMEM;
1094 }
1095 sdp->sd_args = *args;
1096
1097 if (sdp->sd_args.ar_spectator) {
1098 sb->s_flags |= MS_RDONLY;
1099 set_bit(SDF_NORECOVERY, &sdp->sd_flags);
1100 }
1101 if (sdp->sd_args.ar_posix_acl)
1102 sb->s_flags |= MS_POSIXACL;
1103 if (sdp->sd_args.ar_nobarrier)
1104 set_bit(SDF_NOBARRIERS, &sdp->sd_flags);
1105
1106 sb->s_magic = GFS2_MAGIC;
1107 sb->s_op = &gfs2_super_ops;
1108 sb->s_d_op = &gfs2_dops;
1109 sb->s_export_op = &gfs2_export_ops;
1110 sb->s_xattr = gfs2_xattr_handlers;
1111 sb->s_qcop = &gfs2_quotactl_ops;
1112 sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
1113 sb->s_time_gran = 1;
1114 sb->s_maxbytes = MAX_LFS_FILESIZE;
1115
1116
1117
1118 sdp->sd_sb.sb_bsize = sb_min_blocksize(sb, GFS2_BASIC_BLOCK);
1119 sdp->sd_sb.sb_bsize_shift = sb->s_blocksize_bits;
1120 sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift -
1121 GFS2_BASIC_BLOCK_SHIFT;
1122 sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift;
1123
1124 sdp->sd_tune.gt_logd_secs = sdp->sd_args.ar_commit;
1125 sdp->sd_tune.gt_quota_quantum = sdp->sd_args.ar_quota_quantum;
1126 if (sdp->sd_args.ar_statfs_quantum) {
1127 sdp->sd_tune.gt_statfs_slow = 0;
1128 sdp->sd_tune.gt_statfs_quantum = sdp->sd_args.ar_statfs_quantum;
1129 }
1130 else {
1131 sdp->sd_tune.gt_statfs_slow = 1;
1132 sdp->sd_tune.gt_statfs_quantum = 30;
1133 }
1134
1135 error = init_names(sdp, silent);
1136 if (error)
1137 goto fail;
1138
1139 gfs2_create_debugfs_file(sdp);
1140
1141 error = gfs2_sys_fs_add(sdp);
1142 if (error)
1143 goto fail;
1144
1145 error = gfs2_lm_mount(sdp, silent);
1146 if (error)
1147 goto fail_sys;
1148
1149 error = init_locking(sdp, &mount_gh, DO);
1150 if (error)
1151 goto fail_lm;
1152
1153 error = init_sb(sdp, silent);
1154 if (error)
1155 goto fail_locking;
1156
1157 error = wait_on_journal(sdp);
1158 if (error)
1159 goto fail_sb;
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169 if (sdp->sd_lockstruct.ls_jid < 0) {
1170 error = sdp->sd_lockstruct.ls_jid;
1171 sdp->sd_lockstruct.ls_jid = 0;
1172 goto fail_sb;
1173 }
1174
1175 error = init_inodes(sdp, DO);
1176 if (error)
1177 goto fail_sb;
1178
1179 error = init_per_node(sdp, DO);
1180 if (error)
1181 goto fail_inodes;
1182
1183 error = gfs2_statfs_init(sdp);
1184 if (error) {
1185 fs_err(sdp, "can't initialize statfs subsystem: %d\n", error);
1186 goto fail_per_node;
1187 }
1188
1189 error = init_threads(sdp, DO);
1190 if (error)
1191 goto fail_per_node;
1192
1193 if (!(sb->s_flags & MS_RDONLY)) {
1194 error = gfs2_make_fs_rw(sdp);
1195 if (error) {
1196 fs_err(sdp, "can't make FS RW: %d\n", error);
1197 goto fail_threads;
1198 }
1199 }
1200
1201 gfs2_glock_dq_uninit(&mount_gh);
1202 gfs2_online_uevent(sdp);
1203 return 0;
1204
1205fail_threads:
1206 init_threads(sdp, UNDO);
1207fail_per_node:
1208 init_per_node(sdp, UNDO);
1209fail_inodes:
1210 init_inodes(sdp, UNDO);
1211fail_sb:
1212 if (sdp->sd_root_dir)
1213 dput(sdp->sd_root_dir);
1214 if (sdp->sd_master_dir)
1215 dput(sdp->sd_master_dir);
1216 if (sb->s_root)
1217 dput(sb->s_root);
1218 sb->s_root = NULL;
1219fail_locking:
1220 init_locking(sdp, &mount_gh, UNDO);
1221fail_lm:
1222 gfs2_gl_hash_clear(sdp);
1223 gfs2_lm_unmount(sdp);
1224fail_sys:
1225 gfs2_sys_fs_del(sdp);
1226fail:
1227 gfs2_delete_debugfs_file(sdp);
1228 kfree(sdp);
1229 sb->s_fs_info = NULL;
1230 return error;
1231}
1232
1233static int set_gfs2_super(struct super_block *s, void *data)
1234{
1235 s->s_bdev = data;
1236 s->s_dev = s->s_bdev->bd_dev;
1237
1238
1239
1240
1241
1242 s->s_bdi = &bdev_get_queue(s->s_bdev)->backing_dev_info;
1243 return 0;
1244}
1245
1246static int test_gfs2_super(struct super_block *s, void *ptr)
1247{
1248 struct block_device *bdev = ptr;
1249 return (bdev == s->s_bdev);
1250}
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266static struct dentry *gfs2_mount(struct file_system_type *fs_type, int flags,
1267 const char *dev_name, void *data)
1268{
1269 struct block_device *bdev;
1270 struct super_block *s;
1271 fmode_t mode = FMODE_READ | FMODE_EXCL;
1272 int error;
1273 struct gfs2_args args;
1274 struct gfs2_sbd *sdp;
1275
1276 if (!(flags & MS_RDONLY))
1277 mode |= FMODE_WRITE;
1278
1279 bdev = blkdev_get_by_path(dev_name, mode, fs_type);
1280 if (IS_ERR(bdev))
1281 return ERR_CAST(bdev);
1282
1283
1284
1285
1286
1287
1288 mutex_lock(&bdev->bd_fsfreeze_mutex);
1289 if (bdev->bd_fsfreeze_count > 0) {
1290 mutex_unlock(&bdev->bd_fsfreeze_mutex);
1291 error = -EBUSY;
1292 goto error_bdev;
1293 }
1294 s = sget(fs_type, test_gfs2_super, set_gfs2_super, bdev);
1295 mutex_unlock(&bdev->bd_fsfreeze_mutex);
1296 error = PTR_ERR(s);
1297 if (IS_ERR(s))
1298 goto error_bdev;
1299
1300 if (s->s_root)
1301 blkdev_put(bdev, mode);
1302
1303 memset(&args, 0, sizeof(args));
1304 args.ar_quota = GFS2_QUOTA_DEFAULT;
1305 args.ar_data = GFS2_DATA_DEFAULT;
1306 args.ar_commit = 30;
1307 args.ar_statfs_quantum = 30;
1308 args.ar_quota_quantum = 60;
1309 args.ar_errors = GFS2_ERRORS_DEFAULT;
1310
1311 error = gfs2_mount_args(&args, data);
1312 if (error) {
1313 printk(KERN_WARNING "GFS2: can't parse mount arguments\n");
1314 goto error_super;
1315 }
1316
1317 if (s->s_root) {
1318 error = -EBUSY;
1319 if ((flags ^ s->s_flags) & MS_RDONLY)
1320 goto error_super;
1321 } else {
1322 char b[BDEVNAME_SIZE];
1323
1324 s->s_flags = flags;
1325 s->s_mode = mode;
1326 strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
1327 sb_set_blocksize(s, block_size(bdev));
1328 error = fill_super(s, &args, flags & MS_SILENT ? 1 : 0);
1329 if (error)
1330 goto error_super;
1331 s->s_flags |= MS_ACTIVE;
1332 bdev->bd_super = s;
1333 }
1334
1335 sdp = s->s_fs_info;
1336 if (args.ar_meta)
1337 return dget(sdp->sd_master_dir);
1338 else
1339 return dget(sdp->sd_root_dir);
1340
1341error_super:
1342 deactivate_locked_super(s);
1343 return ERR_PTR(error);
1344error_bdev:
1345 blkdev_put(bdev, mode);
1346 return ERR_PTR(error);
1347}
1348
1349static int set_meta_super(struct super_block *s, void *ptr)
1350{
1351 return -EINVAL;
1352}
1353
1354static struct dentry *gfs2_mount_meta(struct file_system_type *fs_type,
1355 int flags, const char *dev_name, void *data)
1356{
1357 struct super_block *s;
1358 struct gfs2_sbd *sdp;
1359 struct path path;
1360 int error;
1361
1362 error = kern_path(dev_name, LOOKUP_FOLLOW, &path);
1363 if (error) {
1364 printk(KERN_WARNING "GFS2: path_lookup on %s returned error %d\n",
1365 dev_name, error);
1366 return ERR_PTR(error);
1367 }
1368 s = sget(&gfs2_fs_type, test_gfs2_super, set_meta_super,
1369 path.dentry->d_inode->i_sb->s_bdev);
1370 path_put(&path);
1371 if (IS_ERR(s)) {
1372 printk(KERN_WARNING "GFS2: gfs2 mount does not exist\n");
1373 return ERR_CAST(s);
1374 }
1375 if ((flags ^ s->s_flags) & MS_RDONLY) {
1376 deactivate_locked_super(s);
1377 return ERR_PTR(-EBUSY);
1378 }
1379 sdp = s->s_fs_info;
1380 return dget(sdp->sd_master_dir);
1381}
1382
1383static void gfs2_kill_sb(struct super_block *sb)
1384{
1385 struct gfs2_sbd *sdp = sb->s_fs_info;
1386
1387 if (sdp == NULL) {
1388 kill_block_super(sb);
1389 return;
1390 }
1391
1392 gfs2_meta_syncfs(sdp);
1393 dput(sdp->sd_root_dir);
1394 dput(sdp->sd_master_dir);
1395 sdp->sd_root_dir = NULL;
1396 sdp->sd_master_dir = NULL;
1397 shrink_dcache_sb(sb);
1398 kill_block_super(sb);
1399 gfs2_delete_debugfs_file(sdp);
1400 kfree(sdp);
1401}
1402
1403struct file_system_type gfs2_fs_type = {
1404 .name = "gfs2",
1405 .fs_flags = FS_REQUIRES_DEV,
1406 .mount = gfs2_mount,
1407 .kill_sb = gfs2_kill_sb,
1408 .owner = THIS_MODULE,
1409};
1410
1411struct file_system_type gfs2meta_fs_type = {
1412 .name = "gfs2meta",
1413 .fs_flags = FS_REQUIRES_DEV,
1414 .mount = gfs2_mount_meta,
1415 .owner = THIS_MODULE,
1416};
1417
1418