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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
56static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync,
57 unsigned int nr_revokes)
58{
59 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
60 struct list_head *head = &gl->gl_ail_list;
61 struct gfs2_bufdata *bd, *tmp;
62 struct buffer_head *bh;
63 const unsigned long b_state = (1UL << BH_Dirty)|(1UL << BH_Pinned)|(1UL << BH_Lock);
64
65 gfs2_log_lock(sdp);
66 spin_lock(&sdp->sd_ail_lock);
67 list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) {
68 if (nr_revokes == 0)
69 break;
70 bh = bd->bd_bh;
71 if (bh->b_state & b_state) {
72 if (fsync)
73 continue;
74 gfs2_ail_error(gl, bh);
75 }
76 gfs2_trans_add_revoke(sdp, bd);
77 nr_revokes--;
78 }
79 GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count));
80 spin_unlock(&sdp->sd_ail_lock);
81 gfs2_log_unlock(sdp);
82}
83
84
85static int gfs2_ail_empty_gl(struct gfs2_glock *gl)
86{
87 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
88 struct gfs2_trans tr;
89 int ret;
90
91 memset(&tr, 0, sizeof(tr));
92 INIT_LIST_HEAD(&tr.tr_buf);
93 INIT_LIST_HEAD(&tr.tr_databuf);
94 INIT_LIST_HEAD(&tr.tr_ail1_list);
95 INIT_LIST_HEAD(&tr.tr_ail2_list);
96 tr.tr_revokes = atomic_read(&gl->gl_ail_count);
97
98 if (!tr.tr_revokes) {
99 bool have_revokes;
100 bool log_in_flight;
101
102
103
104
105
106
107
108
109
110
111
112
113
114 gfs2_log_lock(sdp);
115 have_revokes = !list_empty(&sdp->sd_log_revokes);
116 log_in_flight = atomic_read(&sdp->sd_log_in_flight);
117 gfs2_log_unlock(sdp);
118 if (have_revokes)
119 goto flush;
120 if (log_in_flight)
121 log_flush_wait(sdp);
122 return 0;
123 }
124
125
126
127
128 tr.tr_reserved = 1 + gfs2_struct2blk(sdp, tr.tr_revokes);
129 tr.tr_ip = _RET_IP_;
130 ret = gfs2_log_reserve(sdp, tr.tr_reserved);
131 if (ret < 0)
132 return ret;
133 WARN_ON_ONCE(current->journal_info);
134 current->journal_info = &tr;
135
136 __gfs2_ail_flush(gl, 0, tr.tr_revokes);
137
138 gfs2_trans_end(sdp);
139flush:
140 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
141 GFS2_LFC_AIL_EMPTY_GL);
142 return 0;
143}
144
145void gfs2_ail_flush(struct gfs2_glock *gl, bool fsync)
146{
147 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
148 unsigned int revokes = atomic_read(&gl->gl_ail_count);
149 unsigned int max_revokes = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / sizeof(u64);
150 int ret;
151
152 if (!revokes)
153 return;
154
155 while (revokes > max_revokes)
156 max_revokes += (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64);
157
158 ret = gfs2_trans_begin(sdp, 0, max_revokes);
159 if (ret)
160 return;
161 __gfs2_ail_flush(gl, fsync, max_revokes);
162 gfs2_trans_end(sdp);
163 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_NORMAL |
164 GFS2_LFC_AIL_FLUSH);
165}
166
167
168
169
170
171
172
173
174
175
176static int rgrp_go_sync(struct gfs2_glock *gl)
177{
178 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
179 struct address_space *mapping = &sdp->sd_aspace;
180 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
181 int error;
182
183 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
184 return 0;
185 GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
186
187 gfs2_log_flush(sdp, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
188 GFS2_LFC_RGRP_GO_SYNC);
189 filemap_fdatawrite_range(mapping, gl->gl_vm.start, gl->gl_vm.end);
190 error = filemap_fdatawait_range(mapping, gl->gl_vm.start, gl->gl_vm.end);
191 WARN_ON_ONCE(error);
192 mapping_set_error(mapping, error);
193 if (!error)
194 error = gfs2_ail_empty_gl(gl);
195
196 spin_lock(&gl->gl_lockref.lock);
197 rgd = gl->gl_object;
198 if (rgd)
199 gfs2_free_clones(rgd);
200 spin_unlock(&gl->gl_lockref.lock);
201 return error;
202}
203
204
205
206
207
208
209
210
211
212
213
214static void rgrp_go_inval(struct gfs2_glock *gl, int flags)
215{
216 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
217 struct address_space *mapping = &sdp->sd_aspace;
218 struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl);
219
220 if (rgd)
221 gfs2_rgrp_brelse(rgd);
222
223 WARN_ON_ONCE(!(flags & DIO_METADATA));
224 truncate_inode_pages_range(mapping, gl->gl_vm.start, gl->gl_vm.end);
225
226 if (rgd)
227 rgd->rd_flags &= ~GFS2_RDF_UPTODATE;
228}
229
230static struct gfs2_inode *gfs2_glock2inode(struct gfs2_glock *gl)
231{
232 struct gfs2_inode *ip;
233
234 spin_lock(&gl->gl_lockref.lock);
235 ip = gl->gl_object;
236 if (ip)
237 set_bit(GIF_GLOP_PENDING, &ip->i_flags);
238 spin_unlock(&gl->gl_lockref.lock);
239 return ip;
240}
241
242struct gfs2_rgrpd *gfs2_glock2rgrp(struct gfs2_glock *gl)
243{
244 struct gfs2_rgrpd *rgd;
245
246 spin_lock(&gl->gl_lockref.lock);
247 rgd = gl->gl_object;
248 spin_unlock(&gl->gl_lockref.lock);
249
250 return rgd;
251}
252
253static void gfs2_clear_glop_pending(struct gfs2_inode *ip)
254{
255 if (!ip)
256 return;
257
258 clear_bit_unlock(GIF_GLOP_PENDING, &ip->i_flags);
259 wake_up_bit(&ip->i_flags, GIF_GLOP_PENDING);
260}
261
262
263
264
265
266
267
268static int inode_go_sync(struct gfs2_glock *gl)
269{
270 struct gfs2_inode *ip = gfs2_glock2inode(gl);
271 int isreg = ip && S_ISREG(ip->i_inode.i_mode);
272 struct address_space *metamapping = gfs2_glock2aspace(gl);
273 int error = 0, ret;
274
275 if (isreg) {
276 if (test_and_clear_bit(GIF_SW_PAGED, &ip->i_flags))
277 unmap_shared_mapping_range(ip->i_inode.i_mapping, 0, 0);
278 inode_dio_wait(&ip->i_inode);
279 }
280 if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags))
281 goto out;
282
283 GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE);
284
285 gfs2_log_flush(gl->gl_name.ln_sbd, gl, GFS2_LOG_HEAD_FLUSH_NORMAL |
286 GFS2_LFC_INODE_GO_SYNC);
287 filemap_fdatawrite(metamapping);
288 if (isreg) {
289 struct address_space *mapping = ip->i_inode.i_mapping;
290 filemap_fdatawrite(mapping);
291 error = filemap_fdatawait(mapping);
292 mapping_set_error(mapping, error);
293 }
294 ret = filemap_fdatawait(metamapping);
295 mapping_set_error(metamapping, ret);
296 if (!error)
297 error = ret;
298 gfs2_ail_empty_gl(gl);
299
300
301
302
303 smp_mb__before_atomic();
304 clear_bit(GLF_DIRTY, &gl->gl_flags);
305
306out:
307 gfs2_clear_glop_pending(ip);
308 return error;
309}
310
311
312
313
314
315
316
317
318
319
320
321
322static void inode_go_inval(struct gfs2_glock *gl, int flags)
323{
324 struct gfs2_inode *ip = gfs2_glock2inode(gl);
325
326 if (flags & DIO_METADATA) {
327 struct address_space *mapping = gfs2_glock2aspace(gl);
328 truncate_inode_pages(mapping, 0);
329 if (ip) {
330 set_bit(GIF_INVALID, &ip->i_flags);
331 forget_all_cached_acls(&ip->i_inode);
332 security_inode_invalidate_secctx(&ip->i_inode);
333 gfs2_dir_hash_inval(ip);
334 }
335 }
336
337 if (ip == GFS2_I(gl->gl_name.ln_sbd->sd_rindex)) {
338 gfs2_log_flush(gl->gl_name.ln_sbd, NULL,
339 GFS2_LOG_HEAD_FLUSH_NORMAL |
340 GFS2_LFC_INODE_GO_INVAL);
341 gl->gl_name.ln_sbd->sd_rindex_uptodate = 0;
342 }
343 if (ip && S_ISREG(ip->i_inode.i_mode))
344 truncate_inode_pages(ip->i_inode.i_mapping, 0);
345
346 gfs2_clear_glop_pending(ip);
347}
348
349
350
351
352
353
354
355
356static int inode_go_demote_ok(const struct gfs2_glock *gl)
357{
358 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
359
360 if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object)
361 return 0;
362
363 return 1;
364}
365
366static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
367{
368 const struct gfs2_dinode *str = buf;
369 struct timespec64 atime;
370 u16 height, depth;
371
372 if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)))
373 goto corrupt;
374 ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
375 ip->i_inode.i_mode = be32_to_cpu(str->di_mode);
376 ip->i_inode.i_rdev = 0;
377 switch (ip->i_inode.i_mode & S_IFMT) {
378 case S_IFBLK:
379 case S_IFCHR:
380 ip->i_inode.i_rdev = MKDEV(be32_to_cpu(str->di_major),
381 be32_to_cpu(str->di_minor));
382 break;
383 }
384
385 i_uid_write(&ip->i_inode, be32_to_cpu(str->di_uid));
386 i_gid_write(&ip->i_inode, be32_to_cpu(str->di_gid));
387 set_nlink(&ip->i_inode, be32_to_cpu(str->di_nlink));
388 i_size_write(&ip->i_inode, be64_to_cpu(str->di_size));
389 gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks));
390 atime.tv_sec = be64_to_cpu(str->di_atime);
391 atime.tv_nsec = be32_to_cpu(str->di_atime_nsec);
392 if (timespec64_compare(&ip->i_inode.i_atime, &atime) < 0)
393 ip->i_inode.i_atime = atime;
394 ip->i_inode.i_mtime.tv_sec = be64_to_cpu(str->di_mtime);
395 ip->i_inode.i_mtime.tv_nsec = be32_to_cpu(str->di_mtime_nsec);
396 ip->i_inode.i_ctime.tv_sec = be64_to_cpu(str->di_ctime);
397 ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec);
398
399 ip->i_goal = be64_to_cpu(str->di_goal_meta);
400 ip->i_generation = be64_to_cpu(str->di_generation);
401
402 ip->i_diskflags = be32_to_cpu(str->di_flags);
403 ip->i_eattr = be64_to_cpu(str->di_eattr);
404
405 gfs2_set_inode_flags(&ip->i_inode);
406 height = be16_to_cpu(str->di_height);
407 if (unlikely(height > GFS2_MAX_META_HEIGHT))
408 goto corrupt;
409 ip->i_height = (u8)height;
410
411 depth = be16_to_cpu(str->di_depth);
412 if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
413 goto corrupt;
414 ip->i_depth = (u8)depth;
415 ip->i_entries = be32_to_cpu(str->di_entries);
416
417 if (S_ISREG(ip->i_inode.i_mode))
418 gfs2_set_aops(&ip->i_inode);
419
420 return 0;
421corrupt:
422 gfs2_consist_inode(ip);
423 return -EIO;
424}
425
426
427
428
429
430
431
432
433int gfs2_inode_refresh(struct gfs2_inode *ip)
434{
435 struct buffer_head *dibh;
436 int error;
437
438 error = gfs2_meta_inode_buffer(ip, &dibh);
439 if (error)
440 return error;
441
442 error = gfs2_dinode_in(ip, dibh->b_data);
443 brelse(dibh);
444 clear_bit(GIF_INVALID, &ip->i_flags);
445
446 return error;
447}
448
449
450
451
452
453
454
455
456
457static int inode_go_lock(struct gfs2_holder *gh)
458{
459 struct gfs2_glock *gl = gh->gh_gl;
460 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
461 struct gfs2_inode *ip = gl->gl_object;
462 int error = 0;
463
464 if (!ip || (gh->gh_flags & GL_SKIP))
465 return 0;
466
467 if (test_bit(GIF_INVALID, &ip->i_flags)) {
468 error = gfs2_inode_refresh(ip);
469 if (error)
470 return error;
471 }
472
473 if (gh->gh_state != LM_ST_DEFERRED)
474 inode_dio_wait(&ip->i_inode);
475
476 if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
477 (gl->gl_state == LM_ST_EXCLUSIVE) &&
478 (gh->gh_state == LM_ST_EXCLUSIVE)) {
479 spin_lock(&sdp->sd_trunc_lock);
480 if (list_empty(&ip->i_trunc_list))
481 list_add(&ip->i_trunc_list, &sdp->sd_trunc_list);
482 spin_unlock(&sdp->sd_trunc_lock);
483 wake_up(&sdp->sd_quota_wait);
484 return 1;
485 }
486
487 return error;
488}
489
490
491
492
493
494
495
496
497
498static void inode_go_dump(struct seq_file *seq, struct gfs2_glock *gl,
499 const char *fs_id_buf)
500{
501 struct gfs2_inode *ip = gl->gl_object;
502 struct inode *inode = &ip->i_inode;
503 unsigned long nrpages;
504
505 if (ip == NULL)
506 return;
507
508 xa_lock_irq(&inode->i_data.i_pages);
509 nrpages = inode->i_data.nrpages;
510 xa_unlock_irq(&inode->i_data.i_pages);
511
512 gfs2_print_dbg(seq, "%s I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu "
513 "p:%lu\n", fs_id_buf,
514 (unsigned long long)ip->i_no_formal_ino,
515 (unsigned long long)ip->i_no_addr,
516 IF2DT(ip->i_inode.i_mode), ip->i_flags,
517 (unsigned int)ip->i_diskflags,
518 (unsigned long long)i_size_read(inode), nrpages);
519}
520
521
522
523
524
525
526
527
528
529static int freeze_go_sync(struct gfs2_glock *gl)
530{
531 int error = 0;
532 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
533
534 if (gl->gl_req == LM_ST_EXCLUSIVE && !gfs2_withdrawn(sdp)) {
535 atomic_set(&sdp->sd_freeze_state, SFS_STARTING_FREEZE);
536 error = freeze_super(sdp->sd_vfs);
537 if (error) {
538 fs_info(sdp, "GFS2: couldn't freeze filesystem: %d\n",
539 error);
540 if (gfs2_withdrawn(sdp)) {
541 atomic_set(&sdp->sd_freeze_state, SFS_UNFROZEN);
542 return 0;
543 }
544 gfs2_assert_withdraw(sdp, 0);
545 }
546 queue_work(gfs2_freeze_wq, &sdp->sd_freeze_work);
547 if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
548 gfs2_log_flush(sdp, NULL, GFS2_LOG_HEAD_FLUSH_FREEZE |
549 GFS2_LFC_FREEZE_GO_SYNC);
550 else
551 atomic_set(&sdp->sd_freeze_state, SFS_FROZEN);
552 }
553 return 0;
554}
555
556
557
558
559
560
561
562static int freeze_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh)
563{
564 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
565 struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
566 struct gfs2_glock *j_gl = ip->i_gl;
567 struct gfs2_log_header_host head;
568 int error;
569
570 if (test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)) {
571 j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
572
573 error = gfs2_find_jhead(sdp->sd_jdesc, &head, false);
574 if (error)
575 gfs2_consist(sdp);
576 if (!(head.lh_flags & GFS2_LOG_HEAD_UNMOUNT))
577 gfs2_consist(sdp);
578
579
580 if (!gfs2_withdrawn(sdp)) {
581 sdp->sd_log_sequence = head.lh_sequence + 1;
582 gfs2_log_pointers_init(sdp, head.lh_blkno);
583 }
584 }
585 return 0;
586}
587
588
589
590
591
592
593
594
595static int freeze_go_demote_ok(const struct gfs2_glock *gl)
596{
597 return 0;
598}
599
600
601
602
603
604
605
606static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
607{
608 struct gfs2_inode *ip = gl->gl_object;
609 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
610
611 if (!remote || sb_rdonly(sdp->sd_vfs))
612 return;
613
614 if (gl->gl_demote_state == LM_ST_UNLOCKED &&
615 gl->gl_state == LM_ST_SHARED && ip) {
616 gl->gl_lockref.count++;
617 if (!queue_delayed_work(gfs2_delete_workqueue,
618 &gl->gl_delete, 0))
619 gl->gl_lockref.count--;
620 }
621}
622
623static int iopen_go_demote_ok(const struct gfs2_glock *gl)
624{
625 return !gfs2_delete_work_queued(gl);
626}
627
628
629
630
631
632
633
634
635
636static void inode_go_free(struct gfs2_glock *gl)
637{
638
639
640 if (!test_bit(GLF_FREEING, &gl->gl_flags))
641 return;
642 clear_bit_unlock(GLF_FREEING, &gl->gl_flags);
643 wake_up_bit(&gl->gl_flags, GLF_FREEING);
644}
645
646
647
648
649
650
651
652static void nondisk_go_callback(struct gfs2_glock *gl, bool remote)
653{
654 struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
655
656
657
658 if (!remote || gl->gl_name.ln_number != GFS2_LIVE_LOCK)
659 return;
660
661
662
663
664 clear_bit(GLF_DEMOTE, &gl->gl_flags);
665 clear_bit(GLF_PENDING_DEMOTE, &gl->gl_flags);
666
667
668 if (test_bit(SDF_NORECOVERY, &sdp->sd_flags) ||
669 test_bit(SDF_WITHDRAWN, &sdp->sd_flags) ||
670 test_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags))
671 return;
672
673
674
675 if (gl->gl_demote_state != LM_ST_UNLOCKED)
676 return;
677
678 if (sdp->sd_args.ar_spectator) {
679 fs_warn(sdp, "Spectator node cannot recover journals.\n");
680 return;
681 }
682
683 fs_warn(sdp, "Some node has withdrawn; checking for recovery.\n");
684 set_bit(SDF_REMOTE_WITHDRAW, &sdp->sd_flags);
685
686
687
688
689
690
691
692 queue_delayed_work(gfs2_control_wq, &sdp->sd_control_work, 0);
693}
694
695const struct gfs2_glock_operations gfs2_meta_glops = {
696 .go_type = LM_TYPE_META,
697 .go_flags = GLOF_NONDISK,
698};
699
700const struct gfs2_glock_operations gfs2_inode_glops = {
701 .go_sync = inode_go_sync,
702 .go_inval = inode_go_inval,
703 .go_demote_ok = inode_go_demote_ok,
704 .go_lock = inode_go_lock,
705 .go_dump = inode_go_dump,
706 .go_type = LM_TYPE_INODE,
707 .go_flags = GLOF_ASPACE | GLOF_LRU | GLOF_LVB,
708 .go_free = inode_go_free,
709};
710
711const struct gfs2_glock_operations gfs2_rgrp_glops = {
712 .go_sync = rgrp_go_sync,
713 .go_inval = rgrp_go_inval,
714 .go_lock = gfs2_rgrp_go_lock,
715 .go_dump = gfs2_rgrp_dump,
716 .go_type = LM_TYPE_RGRP,
717 .go_flags = GLOF_LVB,
718};
719
720const struct gfs2_glock_operations gfs2_freeze_glops = {
721 .go_sync = freeze_go_sync,
722 .go_xmote_bh = freeze_go_xmote_bh,
723 .go_demote_ok = freeze_go_demote_ok,
724 .go_type = LM_TYPE_NONDISK,
725 .go_flags = GLOF_NONDISK,
726};
727
728const struct gfs2_glock_operations gfs2_iopen_glops = {
729 .go_type = LM_TYPE_IOPEN,
730 .go_callback = iopen_go_callback,
731 .go_demote_ok = iopen_go_demote_ok,
732 .go_flags = GLOF_LRU | GLOF_NONDISK,
733};
734
735const struct gfs2_glock_operations gfs2_flock_glops = {
736 .go_type = LM_TYPE_FLOCK,
737 .go_flags = GLOF_LRU | GLOF_NONDISK,
738};
739
740const struct gfs2_glock_operations gfs2_nondisk_glops = {
741 .go_type = LM_TYPE_NONDISK,
742 .go_flags = GLOF_NONDISK,
743 .go_callback = nondisk_go_callback,
744};
745
746const struct gfs2_glock_operations gfs2_quota_glops = {
747 .go_type = LM_TYPE_QUOTA,
748 .go_flags = GLOF_LVB | GLOF_LRU | GLOF_NONDISK,
749};
750
751const struct gfs2_glock_operations gfs2_journal_glops = {
752 .go_type = LM_TYPE_JOURNAL,
753 .go_flags = GLOF_NONDISK,
754};
755
756const struct gfs2_glock_operations *gfs2_glops_list[] = {
757 [LM_TYPE_META] = &gfs2_meta_glops,
758 [LM_TYPE_INODE] = &gfs2_inode_glops,
759 [LM_TYPE_RGRP] = &gfs2_rgrp_glops,
760 [LM_TYPE_IOPEN] = &gfs2_iopen_glops,
761 [LM_TYPE_FLOCK] = &gfs2_flock_glops,
762 [LM_TYPE_NONDISK] = &gfs2_nondisk_glops,
763 [LM_TYPE_QUOTA] = &gfs2_quota_glops,
764 [LM_TYPE_JOURNAL] = &gfs2_journal_glops,
765};
766
767