1
2
3
4
5
6
7#include <linux/spinlock.h>
8#include <linux/completion.h>
9#include <linux/buffer_head.h>
10#include <linux/gfs2_ondisk.h>
11#include <linux/bio.h>
12#include <linux/posix_acl.h>
13#include <linux/security.h>
14
15#include "gfs2.h"
16#include "incore.h"
17#include "bmap.h"
18#include "glock.h"
19#include "glops.h"
20#include "inode.h"
21#include "log.h"
22#include "meta_io.h"
23#include "recovery.h"
24#include "rgrp.h"
25#include "util.h"
26#include "trans.h"
27#include "dir.h"
28#include "lops.h"
29
30struct workqueue_struct *gfs2_freeze_wq;
31
32extern struct workqueue_struct *gfs2_control_wq;
33
34static void gfs2_ail_error(struct gfs2_glock *gl, const struct buffer_head *bh)
35{
36 fs_err(gl->gl_name.ln_sbd,
37 "AIL buffer %p: blocknr %llu state 0x%08lx mapping %p page "
38 "state 0x%lx\n",
39 bh, (unsigned long long)bh->b_blocknr, bh->b_state,
40 bh->b_page->mapping, bh->b_page->flags);
41 fs_err(gl->gl_name.ln_sbd, "AIL glock %u:%llu mapping %p\n",
42 gl->gl_name.ln_type, gl->gl_name.ln_number,
43 gfs2_glock2aspace(gl));
44 gfs2_lm(gl->gl_name.ln_sbd, "AIL error\n");
45 gfs2_withdraw(gl->gl_name.ln_sbd);
46}
47
48
49
50
51
52
53
54
55
56
57static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync,
58 unsigned int nr_revokes)
59{
60 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
61 struct list_head *head = &gl->gl_ail_list;
62 struct gfs2_bufdata *bd, *tmp;
63 struct buffer_head *bh;
64 const unsigned long b_state = (1UL << BH_Dirty)|(1UL << BH_Pinned)|(1UL << BH_Lock);
65
66 gfs2_log_lock(sdp);
67 spin_lock(&sdp->sd_ail_lock);
68 list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) {
69 if (nr_revokes == 0)
70 break;
71 bh = bd->bd_bh;
72 if (bh->b_state & b_state) {
73 if (fsync)
74 continue;
75 gfs2_ail_error(gl, bh);
76 }
77 gfs2_trans_add_revoke(sdp, bd);
78 nr_revokes--;
79 }
80 GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count));
81 spin_unlock(&sdp->sd_ail_lock);
82 gfs2_log_unlock(sdp);
83}
84
85
86static int gfs2_ail_empty_gl(struct gfs2_glock *gl)
87{
88 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
89 struct gfs2_trans tr;
90 unsigned int revokes;
91 int ret;
92
93 revokes = atomic_read(&gl->gl_ail_count);
94
95 if (!revokes) {
96 bool have_revokes;
97 bool log_in_flight;
98
99
100
101
102
103
104
105
106
107
108
109
110
111 gfs2_log_lock(sdp);
112 have_revokes = !list_empty(&sdp->sd_log_revokes);
113 log_in_flight = atomic_read(&sdp->sd_log_in_flight);
114 gfs2_log_unlock(sdp);
115 if (have_revokes)
116 goto flush;
117 if (log_in_flight)
118 log_flush_wait(sdp);
119 return 0;
120 }
121
122 memset(&tr, 0, sizeof(tr));
123 set_bit(TR_ONSTACK, &tr.tr_flags);
124 ret = __gfs2_trans_begin(&tr, sdp, 0, revokes, _RET_IP_);
125 if (ret)
126 goto flush;
127 __gfs2_ail_flush(gl, 0, revokes);
128 gfs2_trans_end(sdp);
129
130flush:
131 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
132 GFS2_LFC_AIL_EMPTY_GL);
133 return 0;
134}
135
136void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync)
137{
138 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
139 unsigned int revokes = atomic_read(&gl->gl_ail_count);
140 int ret;
141
142 if (!revokes)
143 return;
144
145 ret = gfs2_trans_begin(sdp, 0, revokes);
146 if (ret)
147 return;
148 __gfs2_ail_flush(gl, fsync, revokes);
149 gfs2_trans_end(sdp);
150 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
151 GFS2_LFC_AIL_FLUSH);
152}
153
154
155
156
157
158
159
160static int gfs2_rgrp_metasync(struct gfs2_glock *gl)
161{
162 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
163 struct address_space *metamapping = &sdp->sd_aspace;
164 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
165 const unsigned bsize = sdp->sd_sb.sb_bsize;
166 loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK;
167 loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
168 int error;
169
170 filemap_fdatawrite_range(metamapping, start, end);
171 error = filemap_fdatawait_range(metamapping, start, end);
172 WARN_ON_ONCE(error && !gfs2_withdrawn(sdp));
173 mapping_set_error(metamapping, error);
174 if (error)
175 gfs2_io_error(sdp);
176 return error;
177}
178
179
180
181
182
183
184
185
186
187
188static int rgrp_go_sync(struct gfs2_glock *gl)
189{
190 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
191 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
192 int error;
193
194 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
195 return 0;
196 GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
197
198 gfs2_log_flush(sdp, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
199 GFS2_LFC_RGRP_GO_SYNC);
200 error = gfs2_rgrp_metasync(gl);
201 if (!error)
202 error = gfs2_ail_empty_gl(gl);
203 gfs2_free_clones(rgd);
204 return error;
205}
206
207
208
209
210
211
212
213
214
215
216
217static void rgrp_go_inval(struct gfs2_glock *gl, int flags)
218{
219 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
220 struct address_space *mapping = &sdp->sd_aspace;
221 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
222 const unsigned bsize = sdp->sd_sb.sb_bsize;
223 loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK;
224 loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1;
225
226 gfs2_rgrp_brelse(rgd);
227 WARN_ON_ONCE(!(flags & DIO_METADATA));
228 truncate_inode_pages_range(mapping, start, end);
229 rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
230}
231
232static void gfs2_rgrp_go_dump(struct seq_file *seq, struct gfs2_glock *gl,
233 const char *fs_id_buf)
234{
235 struct gfs2_rgrpd *rgd = gl->gl_object;
236
237 if (rgd)
238 gfs2_rgrp_dump(seq, rgd, fs_id_buf);
239}
240
241static struct gfs2_inode *gfs2_glock2inode(struct gfs2_glock *gl)
242{
243 struct gfs2_inode *ip;
244
245 spin_lock(&gl->gl_lockref.lock);
246 ip = gl->gl_object;
247 if (ip)
248 set_bit(GIF_GLOP_PENDING, &ip->i_flags);
249 spin_unlock(&gl->gl_lockref.lock);
250 return ip;
251}
252
253struct gfs2_rgrpd *gfs2_glock2rgrp(struct gfs2_glock *gl)
254{
255 struct gfs2_rgrpd *rgd;
256
257 spin_lock(&gl->gl_lockref.lock);
258 rgd = gl->gl_object;
259 spin_unlock(&gl->gl_lockref.lock);
260
261 return rgd;
262}
263
264static void gfs2_clear_glop_pending(struct gfs2_inode *ip)
265{
266 if (!ip)
267 return;
268
269 clear_bit_unlock(GIF_GLOP_PENDING, &ip->i_flags);
270 wake_up_bit(&ip->i_flags, GIF_GLOP_PENDING);
271}
272
273
274
275
276
277
278int gfs2_inode_metasync(struct gfs2_glock *gl)
279{
280 struct address_space *metamapping = gfs2_glock2aspace(gl);
281 int error;
282
283 filemap_fdatawrite(metamapping);
284 error = filemap_fdatawait(metamapping);
285 if (error)
286 gfs2_io_error(gl->gl_name.ln_sbd);
287 return error;
288}
289
290
291
292
293
294
295
296static int inode_go_sync(struct gfs2_glock *gl)
297{
298 struct gfs2_inode *ip = gfs2_glock2inode(gl);
299 int isreg = ip && S_ISREG(ip->i_inode.i_mode);
300 struct address_space *metamapping = gfs2_glock2aspace(gl);
301 int error = 0, ret;
302
303 if (isreg) {
304 if (test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags))
305 unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0);
306 inode_dio_wait(&ip->i_inode);
307 }
308 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
309 goto out;
310
311 GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
312
313 gfs2_log_flush(gl->gl_name.ln_sbd, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
314 GFS2_LFC_INODE_GO_SYNC);
315 filemap_fdatawrite(metamapping);
316 if (isreg) {
317 struct address_space *mapping = ip->i_inode.i_mapping;
318 filemap_fdatawrite(mapping);
319 error = filemap_fdatawait(mapping);
320 mapping_set_error(mapping, error);
321 }
322 ret = gfs2_inode_metasync(gl);
323 if (!error)
324 error = ret;
325 gfs2_ail_empty_gl(gl);
326
327
328
329
330 smp_mb__before_atomic();
331 clear_bit(GLF_DIRTY, &gl->gl_flags);
332
333out:
334 gfs2_clear_glop_pending(ip);
335 return error;
336}
337
338
339
340
341
342
343
344
345
346
347
348
349static void inode_go_inval(struct gfs2_glock *gl, int flags)
350{
351 struct gfs2_inode *ip = gfs2_glock2inode(gl);
352
353 if (flags & DIO_METADATA) {
354 struct address_space *mapping = gfs2_glock2aspace(gl);
355 truncate_inode_pages(mapping, 0);
356 if (ip) {
357 set_bit(GIF_INVALID, &ip->i_flags);
358 forget_all_cached_acls(&ip->i_inode);
359 security_inode_invalidate_secctx(&ip->i_inode);
360 gfs2_dir_hash_inval(ip);
361 }
362 }
363
364 if (ip == GFS2_I(gl->gl_name.ln_sbd->sd_rindex)) {
365 gfs2_log_flush(gl->gl_name.ln_sbd, NULL,
366 GFS2_LOG_HEAD_FLUSH_NORMAL |
367 GFS2_LFC_INODE_GO_INVAL);
368 gl->gl_name.ln_sbd->sd_rindex_uptodate = 0;
369 }
370 if (ip && S_ISREG(ip->i_inode.i_mode))
371 truncate_inode_pages(ip->i_inode.i_mapping, 0);
372
373 gfs2_clear_glop_pending(ip);
374}
375
376
377
378
379
380
381
382
383static int inode_go_demote_ok(const struct gfs2_glock *gl)
384{
385 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
386
387 if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object)
388 return 0;
389
390 return 1;
391}
392
393static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
394{
395 const struct gfs2_dinode *str = buf;
396 struct timespec64 atime;
397 u16 height, depth;
398 umode_t mode = be32_to_cpu(str->di_mode);
399 bool is_new = ip->i_inode.i_state & I_NEW;
400
401 if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)))
402 goto corrupt;
403 if (unlikely(!is_new && inode_wrong_type(&ip->i_inode, mode)))
404 goto corrupt;
405 ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
406 ip->i_inode.i_mode = mode;
407 if (is_new) {
408 ip->i_inode.i_rdev = 0;
409 switch (mode & S_IFMT) {
410 case S_IFBLK:
411 case S_IFCHR:
412 ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major),
413 be32_to_cpu(str->di_minor));
414 break;
415 }
416 }
417
418 i_uid_write(&ip->i_inode, be32_to_cpu(str->di_uid));
419 i_gid_write(&ip->i_inode, be32_to_cpu(str->di_gid));
420 set_nlink(&ip->i_inode, be32_to_cpu(str->di_nlink));
421 i_size_write(&ip->i_inode, be64_to_cpu(str->di_size));
422 gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks));
423 atime.tv_sec = be64_to_cpu(str->di_atime);
424 atime.tv_nsec = be32_to_cpu(str->di_atime_nsec);
425 if (timespec64_compare(&ip->i_inode.i_atime, &atime) < 0)
426 ip->i_inode.i_atime = atime;
427 ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime);
428 ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec);
429 ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime);
430 ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec);
431
432 ip->i_goal = be64_to_cpu(str->di_goal_meta);
433 ip->i_generation = be64_to_cpu(str->di_generation);
434
435 ip->i_diskflags = be32_to_cpu(str->di_flags);
436 ip->i_eattr = be64_to_cpu(str->di_eattr);
437
438 gfs2_set_inode_flags(&ip->i_inode);
439 height = be16_to_cpu(str->di_height);
440 if (unlikely(height > GFS2_MAX_META_HEIGHT))
441 goto corrupt;
442 ip->i_height = (u8)height;
443
444 depth = be16_to_cpu(str->di_depth);
445 if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
446 goto corrupt;
447 ip->i_depth = (u8)depth;
448 ip->i_entries = be32_to_cpu(str->di_entries);
449
450 if (S_ISREG(ip->i_inode.i_mode))
451 gfs2_set_aops(&ip->i_inode);
452
453 return 0;
454corrupt:
455 gfs2_consist_inode(ip);
456 return -EIO;
457}
458
459
460
461
462
463
464
465
466int gfs2_inode_refresh(struct gfs2_inode *ip)
467{
468 struct buffer_head *dibh;
469 int error;
470
471 error = gfs2_meta_inode_buffer(ip, &dibh);
472 if (error)
473 return error;
474
475 error = gfs2_dinode_in(ip, dibh->b_data);
476 brelse(dibh);
477 clear_bit(GIF_INVALID, &ip->i_flags);
478
479 return error;
480}
481
482
483
484
485
486
487
488
489static int inode_go_lock(struct gfs2_holder *gh)
490{
491 struct gfs2_glock *gl = gh->gh_gl;
492 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
493 struct gfs2_inode *ip = gl->gl_object;
494 int error = 0;
495
496 if (!ip || (gh->gh_flags & GL_SKIP))
497 return 0;
498
499 if (test_bit(GIF_INVALID, &ip->i_flags)) {
500 error = gfs2_inode_refresh(ip);
501 if (error)
502 return error;
503 }
504
505 if (gh->gh_state != LM_ST_DEFERRED)
506 inode_dio_wait(&ip->i_inode);
507
508 if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
509 (gl->gl_state == LM_ST_EXCLUSIVE) &&
510 (gh->gh_state == LM_ST_EXCLUSIVE)) {
511 spin_lock(&sdp->sd_trunc_lock);
512 if (list_empty(&ip->i_trunc_list))
513 list_add(&ip->i_trunc_list, &sdp->sd_trunc_list);
514 spin_unlock(&sdp->sd_trunc_lock);
515 wake_up(&sdp->sd_quota_wait);
516 return 1;
517 }
518
519 return error;
520}
521
522
523
524
525
526
527
528
529
530static void inode_go_dump(struct seq_file *seq, struct gfs2_glock *gl,
531 const char *fs_id_buf)
532{
533 struct gfs2_inode *ip = gl->gl_object;
534 struct inode *inode = &ip->i_inode;
535 unsigned long nrpages;
536
537 if (ip == NULL)
538 return;
539
540 xa_lock_irq(&inode->i_data.i_pages);
541 nrpages = inode->i_data.nrpages;
542 xa_unlock_irq(&inode->i_data.i_pages);
543
544 gfs2_print_dbg(seq, "%s I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu "
545 "p:%lu\n", fs_id_buf,
546 (unsigned long long)ip->i_no_formal_ino,
547 (unsigned long long)ip->i_no_addr,
548 IF2DT(ip->i_inode.i_mode), ip->i_flags,
549 (unsigned int)ip->i_diskflags,
550 (unsigned long long)i_size_read(inode), nrpages);
551}
552
553
554
555
556
557
558static int freeze_go_sync(struct gfs2_glock *gl)
559{
560 int error = 0;
561 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
562
563
564
565
566
567
568
569
570
571
572
573
574 if (gl->gl_state == LM_ST_SHARED && !gfs2_withdrawn(sdp) &&
575 !test_bit(SDF_NORECOVERY, &sdp->sd_flags)) {
576 atomic_set(&sdp->sd_freeze_state, SFS_STARTING_FREEZE);
577 error = freeze_super(sdp->sd_vfs);
578 if (error) {
579 fs_info(sdp, "GFS2: couldn't freeze filesystem: %d\n",
580 error);
581 if (gfs2_withdrawn(sdp)) {
582 atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);
583 return 0;
584 }
585 gfs2_assert_withdraw(sdp, 0);
586 }
587 queue_work(gfs2_freeze_wq, &sdp->sd_freeze_work);
588 if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
589 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_FREEZE |
590 GFS2_LFC_FREEZE_GO_SYNC);
591 else
592 atomic_set(&sdp->sd_freeze_state, SFS_FROZEN);
593 }
594 return 0;
595}
596
597
598
599
600
601static int freeze_go_xmote_bh(struct gfs2_glock *gl)
602{
603 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
604 struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
605 struct gfs2_glock *j_gl = ip->i_gl;
606 struct gfs2_log_header_host head;
607 int error;
608
609 if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
610 j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
611
612 error = gfs2_find_jhead(sdp->sd_jdesc, &head, false);
613 if (error)
614 gfs2_consist(sdp);
615 if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT))
616 gfs2_consist(sdp);
617
618
619 if (!gfs2_withdrawn(sdp)) {
620 sdp->sd_log_sequence = head.lh_sequence + 1;
621 gfs2_log_pointers_init(sdp, head.lh_blkno);
622 }
623 }
624 return 0;
625}
626
627
628
629
630
631
632
633
634static int freeze_go_demote_ok(const struct gfs2_glock *gl)
635{
636 return 0;
637}
638
639
640
641
642
643
644
645
646static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
647{
648 struct gfs2_inode *ip = gl->gl_object;
649 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
650
651 if (!remote || sb_rdonly(sdp->sd_vfs))
652 return;
653
654 if (gl->gl_demote_state == LM_ST_UNLOCKED &&
655 gl->gl_state == LM_ST_SHARED && ip) {
656 gl->gl_lockref.count++;
657 if (!queue_delayed_work(gfs2_delete_workqueue,
658 &gl->gl_delete, 0))
659 gl->gl_lockref.count--;
660 }
661}
662
663static int iopen_go_demote_ok(const struct gfs2_glock *gl)
664{
665 return !gfs2_delete_work_queued(gl);
666}
667
668
669
670
671
672
673
674
675
676static void inode_go_free(struct gfs2_glock *gl)
677{
678
679
680 if (!test_bit(GLF_FREEING, &gl->gl_flags))
681 return;
682 clear_bit_unlock(GLF_FREEING, &gl->gl_flags);
683 wake_up_bit(&gl->gl_flags, GLF_FREEING);
684}
685
686
687
688
689
690
691
692static void nondisk_go_callback(struct gfs2_glock *gl, bool remote)
693{
694 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
695
696
697
698 if (!remote || gl->gl_name.ln_number != GFS2_LIVE_LOCK)
699 return;
700
701
702
703
704 clear_bit(GLF_DEMOTE, &gl->gl_flags);
705 clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags);
706
707
708 if (test_bit(SDF_NORECOVERY, &sdp->sd_flags) ||
709 test_bit(SDF_WITHDRAWN, &sdp->sd_flags) ||
710 test_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags))
711 return;
712
713
714
715 if (gl->gl_demote_state != LM_ST_UNLOCKED)
716 return;
717
718 if (sdp->sd_args.ar_spectator) {
719 fs_warn(sdp, "Spectator node cannot recover journals.\n");
720 return;
721 }
722
723 fs_warn(sdp, "Some node has withdrawn; checking for recovery.\n");
724 set_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags);
725
726
727
728
729
730
731
732 queue_delayed_work(gfs2_control_wq, &sdp->sd_control_work, 0);
733}
734
735const struct gfs2_glock_operations gfs2_meta_glops = {
736 .go_type = LM_TYPE_META,
737 .go_flags = GLOF_NONDISK,
738};
739
740const struct gfs2_glock_operations gfs2_inode_glops = {
741 .go_sync = inode_go_sync,
742 .go_inval = inode_go_inval,
743 .go_demote_ok = inode_go_demote_ok,
744 .go_lock = inode_go_lock,
745 .go_dump = inode_go_dump,
746 .go_type = LM_TYPE_INODE,
747 .go_flags = GLOF_ASPACE | GLOF_LRU | GLOF_LVB,
748 .go_free = inode_go_free,
749};
750
751const struct gfs2_glock_operations gfs2_rgrp_glops = {
752 .go_sync = rgrp_go_sync,
753 .go_inval = rgrp_go_inval,
754 .go_lock = gfs2_rgrp_go_lock,
755 .go_dump = gfs2_rgrp_go_dump,
756 .go_type = LM_TYPE_RGRP,
757 .go_flags = GLOF_LVB,
758};
759
760const struct gfs2_glock_operations gfs2_freeze_glops = {
761 .go_sync = freeze_go_sync,
762 .go_xmote_bh = freeze_go_xmote_bh,
763 .go_demote_ok = freeze_go_demote_ok,
764 .go_type = LM_TYPE_NONDISK,
765 .go_flags = GLOF_NONDISK,
766};
767
768const struct gfs2_glock_operations gfs2_iopen_glops = {
769 .go_type = LM_TYPE_IOPEN,
770 .go_callback = iopen_go_callback,
771 .go_demote_ok = iopen_go_demote_ok,
772 .go_flags = GLOF_LRU | GLOF_NONDISK,
773 .go_subclass = 1,
774};
775
776const struct gfs2_glock_operations gfs2_flock_glops = {
777 .go_type = LM_TYPE_FLOCK,
778 .go_flags = GLOF_LRU | GLOF_NONDISK,
779};
780
781const struct gfs2_glock_operations gfs2_nondisk_glops = {
782 .go_type = LM_TYPE_NONDISK,
783 .go_flags = GLOF_NONDISK,
784 .go_callback = nondisk_go_callback,
785};
786
787const struct gfs2_glock_operations gfs2_quota_glops = {
788 .go_type = LM_TYPE_QUOTA,
789 .go_flags = GLOF_LVB | GLOF_LRU | GLOF_NONDISK,
790};
791
792const struct gfs2_glock_operations gfs2_journal_glops = {
793 .go_type = LM_TYPE_JOURNAL,
794 .go_flags = GLOF_NONDISK,
795};
796
797const struct gfs2_glock_operations *gfs2_glops_list[] = {
798 [LM_TYPE_META] = &gfs2_meta_glops,
799 [LM_TYPE_INODE] = &gfs2_inode_glops,
800 [LM_TYPE_RGRP] = &gfs2_rgrp_glops,
801 [LM_TYPE_IOPEN] = &gfs2_iopen_glops,
802 [LM_TYPE_FLOCK] = &gfs2_flock_glops,
803 [LM_TYPE_NONDISK] = &gfs2_nondisk_glops,
804 [LM_TYPE_QUOTA] = &gfs2_quota_glops,
805 [LM_TYPE_JOURNAL] = &gfs2_journal_glops,
806};
807
808