1
2
3
4
5
6
7
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>
15#include <linux/gfs2_ondisk.h>
16#include <linux/bio.h>
17#include <linux/fs.h>
18
19#include "gfs2.h"
20#include "incore.h"
21#include "inode.h"
22#include "glock.h"
23#include "log.h"
24#include "lops.h"
25#include "meta_io.h"
26#include "recovery.h"
27#include "rgrp.h"
28#include "trans.h"
29#include "util.h"
30#include "trace_gfs2.h"
31
32
33
34
35
36
37
38
39static void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh)
40{
41 struct gfs2_bufdata *bd;
42
43 gfs2_assert_withdraw(sdp, test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags));
44
45 clear_buffer_dirty(bh);
46 if (test_set_buffer_pinned(bh))
47 gfs2_assert_withdraw(sdp, 0);
48 if (!buffer_uptodate(bh))
49 gfs2_io_error_bh(sdp, bh);
50 bd = bh->b_private;
51
52
53
54 if (bd->bd_ail)
55 list_move(&bd->bd_ail_st_list, &bd->bd_ail->ai_ail2_list);
56 get_bh(bh);
57 trace_gfs2_pin(bd, 1);
58}
59
60
61
62
63
64
65
66
67
68static void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh,
69 struct gfs2_ail *ai)
70{
71 struct gfs2_bufdata *bd = bh->b_private;
72
73 gfs2_assert_withdraw(sdp, buffer_uptodate(bh));
74
75 if (!buffer_pinned(bh))
76 gfs2_assert_withdraw(sdp, 0);
77
78 lock_buffer(bh);
79 mark_buffer_dirty(bh);
80 clear_buffer_pinned(bh);
81
82 gfs2_log_lock(sdp);
83 if (bd->bd_ail) {
84 list_del(&bd->bd_ail_st_list);
85 brelse(bh);
86 } else {
87 struct gfs2_glock *gl = bd->bd_gl;
88 list_add(&bd->bd_ail_gl_list, &gl->gl_ail_list);
89 atomic_inc(&gl->gl_ail_count);
90 }
91 bd->bd_ail = ai;
92 list_add(&bd->bd_ail_st_list, &ai->ai_ail1_list);
93 clear_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
94 trace_gfs2_pin(bd, 0);
95 gfs2_log_unlock(sdp);
96 unlock_buffer(bh);
97}
98
99
100static inline struct gfs2_log_descriptor *bh_log_desc(struct buffer_head *bh)
101{
102 return (struct gfs2_log_descriptor *)bh->b_data;
103}
104
105static inline __be64 *bh_log_ptr(struct buffer_head *bh)
106{
107 struct gfs2_log_descriptor *ld = bh_log_desc(bh);
108 return (__force __be64 *)(ld + 1);
109}
110
111static inline __be64 *bh_ptr_end(struct buffer_head *bh)
112{
113 return (__force __be64 *)(bh->b_data + bh->b_size);
114}
115
116
117static struct buffer_head *gfs2_get_log_desc(struct gfs2_sbd *sdp, u32 ld_type)
118{
119 struct buffer_head *bh = gfs2_log_get_buf(sdp);
120 struct gfs2_log_descriptor *ld = bh_log_desc(bh);
121 ld->ld_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
122 ld->ld_header.mh_type = cpu_to_be32(GFS2_METATYPE_LD);
123 ld->ld_header.mh_format = cpu_to_be32(GFS2_FORMAT_LD);
124 ld->ld_type = cpu_to_be32(ld_type);
125 ld->ld_length = 0;
126 ld->ld_data1 = 0;
127 ld->ld_data2 = 0;
128 memset(ld->ld_reserved, 0, sizeof(ld->ld_reserved));
129 return bh;
130}
131
132static void buf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
133{
134 struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le);
135 struct gfs2_trans *tr;
136
137 lock_buffer(bd->bd_bh);
138 gfs2_log_lock(sdp);
139 if (!list_empty(&bd->bd_list_tr))
140 goto out;
141 tr = current->journal_info;
142 tr->tr_touched = 1;
143 tr->tr_num_buf++;
144 list_add(&bd->bd_list_tr, &tr->tr_list_buf);
145 if (!list_empty(&le->le_list))
146 goto out;
147 set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
148 set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
149 gfs2_meta_check(sdp, bd->bd_bh);
150 gfs2_pin(sdp, bd->bd_bh);
151 sdp->sd_log_num_buf++;
152 list_add(&le->le_list, &sdp->sd_log_le_buf);
153 tr->tr_num_buf_new++;
154out:
155 gfs2_log_unlock(sdp);
156 unlock_buffer(bd->bd_bh);
157}
158
159static void buf_lo_before_commit(struct gfs2_sbd *sdp)
160{
161 struct buffer_head *bh;
162 struct gfs2_log_descriptor *ld;
163 struct gfs2_bufdata *bd1 = NULL, *bd2;
164 unsigned int total;
165 unsigned int limit;
166 unsigned int num;
167 unsigned n;
168 __be64 *ptr;
169
170 limit = buf_limit(sdp);
171
172
173 gfs2_log_lock(sdp);
174 total = sdp->sd_log_num_buf;
175 bd1 = bd2 = list_prepare_entry(bd1, &sdp->sd_log_le_buf, bd_le.le_list);
176 while(total) {
177 num = total;
178 if (total > limit)
179 num = limit;
180 gfs2_log_unlock(sdp);
181 bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_METADATA);
182 gfs2_log_lock(sdp);
183 ld = bh_log_desc(bh);
184 ptr = bh_log_ptr(bh);
185 ld->ld_length = cpu_to_be32(num + 1);
186 ld->ld_data1 = cpu_to_be32(num);
187
188 n = 0;
189 list_for_each_entry_continue(bd1, &sdp->sd_log_le_buf,
190 bd_le.le_list) {
191 *ptr++ = cpu_to_be64(bd1->bd_bh->b_blocknr);
192 if (++n >= num)
193 break;
194 }
195
196 gfs2_log_unlock(sdp);
197 submit_bh(WRITE_SYNC_PLUG, bh);
198 gfs2_log_lock(sdp);
199
200 n = 0;
201 list_for_each_entry_continue(bd2, &sdp->sd_log_le_buf,
202 bd_le.le_list) {
203 get_bh(bd2->bd_bh);
204 gfs2_log_unlock(sdp);
205 lock_buffer(bd2->bd_bh);
206 bh = gfs2_log_fake_buf(sdp, bd2->bd_bh);
207 submit_bh(WRITE_SYNC_PLUG, bh);
208 gfs2_log_lock(sdp);
209 if (++n >= num)
210 break;
211 }
212
213 BUG_ON(total < num);
214 total -= num;
215 }
216 gfs2_log_unlock(sdp);
217}
218
219static void buf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
220{
221 struct list_head *head = &sdp->sd_log_le_buf;
222 struct gfs2_bufdata *bd;
223
224 while (!list_empty(head)) {
225 bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list);
226 list_del_init(&bd->bd_le.le_list);
227 sdp->sd_log_num_buf--;
228
229 gfs2_unpin(sdp, bd->bd_bh, ai);
230 }
231 gfs2_assert_warn(sdp, !sdp->sd_log_num_buf);
232}
233
234static void buf_lo_before_scan(struct gfs2_jdesc *jd,
235 struct gfs2_log_header_host *head, int pass)
236{
237 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
238
239 if (pass != 0)
240 return;
241
242 sdp->sd_found_blocks = 0;
243 sdp->sd_replayed_blocks = 0;
244}
245
246static int buf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
247 struct gfs2_log_descriptor *ld, __be64 *ptr,
248 int pass)
249{
250 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
251 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
252 struct gfs2_glock *gl = ip->i_gl;
253 unsigned int blks = be32_to_cpu(ld->ld_data1);
254 struct buffer_head *bh_log, *bh_ip;
255 u64 blkno;
256 int error = 0;
257
258 if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_METADATA)
259 return 0;
260
261 gfs2_replay_incr_blk(sdp, &start);
262
263 for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) {
264 blkno = be64_to_cpu(*ptr++);
265
266 sdp->sd_found_blocks++;
267
268 if (gfs2_revoke_check(sdp, blkno, start))
269 continue;
270
271 error = gfs2_replay_read_block(jd, start, &bh_log);
272 if (error)
273 return error;
274
275 bh_ip = gfs2_meta_new(gl, blkno);
276 memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size);
277
278 if (gfs2_meta_check(sdp, bh_ip))
279 error = -EIO;
280 else
281 mark_buffer_dirty(bh_ip);
282
283 brelse(bh_log);
284 brelse(bh_ip);
285
286 if (error)
287 break;
288
289 sdp->sd_replayed_blocks++;
290 }
291
292 return error;
293}
294
295static void buf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
296{
297 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
298 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
299
300 if (error) {
301 gfs2_meta_sync(ip->i_gl);
302 return;
303 }
304 if (pass != 1)
305 return;
306
307 gfs2_meta_sync(ip->i_gl);
308
309 fs_info(sdp, "jid=%u: Replayed %u of %u blocks\n",
310 jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks);
311}
312
313static void revoke_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
314{
315 struct gfs2_trans *tr;
316
317 tr = current->journal_info;
318 tr->tr_touched = 1;
319 tr->tr_num_revoke++;
320 sdp->sd_log_num_revoke++;
321 list_add(&le->le_list, &sdp->sd_log_le_revoke);
322}
323
324static void revoke_lo_before_commit(struct gfs2_sbd *sdp)
325{
326 struct gfs2_log_descriptor *ld;
327 struct gfs2_meta_header *mh;
328 struct buffer_head *bh;
329 unsigned int offset;
330 struct list_head *head = &sdp->sd_log_le_revoke;
331 struct gfs2_bufdata *bd;
332
333 if (!sdp->sd_log_num_revoke)
334 return;
335
336 bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_REVOKE);
337 ld = bh_log_desc(bh);
338 ld->ld_length = cpu_to_be32(gfs2_struct2blk(sdp, sdp->sd_log_num_revoke,
339 sizeof(u64)));
340 ld->ld_data1 = cpu_to_be32(sdp->sd_log_num_revoke);
341 offset = sizeof(struct gfs2_log_descriptor);
342
343 while (!list_empty(head)) {
344 bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list);
345 list_del_init(&bd->bd_le.le_list);
346 sdp->sd_log_num_revoke--;
347
348 if (offset + sizeof(u64) > sdp->sd_sb.sb_bsize) {
349 submit_bh(WRITE_SYNC_PLUG, bh);
350
351 bh = gfs2_log_get_buf(sdp);
352 mh = (struct gfs2_meta_header *)bh->b_data;
353 mh->mh_magic = cpu_to_be32(GFS2_MAGIC);
354 mh->mh_type = cpu_to_be32(GFS2_METATYPE_LB);
355 mh->mh_format = cpu_to_be32(GFS2_FORMAT_LB);
356 offset = sizeof(struct gfs2_meta_header);
357 }
358
359 *(__be64 *)(bh->b_data + offset) = cpu_to_be64(bd->bd_blkno);
360 kmem_cache_free(gfs2_bufdata_cachep, bd);
361
362 offset += sizeof(u64);
363 }
364 gfs2_assert_withdraw(sdp, !sdp->sd_log_num_revoke);
365
366 submit_bh(WRITE_SYNC_PLUG, bh);
367}
368
369static void revoke_lo_before_scan(struct gfs2_jdesc *jd,
370 struct gfs2_log_header_host *head, int pass)
371{
372 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
373
374 if (pass != 0)
375 return;
376
377 sdp->sd_found_revokes = 0;
378 sdp->sd_replay_tail = head->lh_tail;
379}
380
381static int revoke_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
382 struct gfs2_log_descriptor *ld, __be64 *ptr,
383 int pass)
384{
385 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
386 unsigned int blks = be32_to_cpu(ld->ld_length);
387 unsigned int revokes = be32_to_cpu(ld->ld_data1);
388 struct buffer_head *bh;
389 unsigned int offset;
390 u64 blkno;
391 int first = 1;
392 int error;
393
394 if (pass != 0 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_REVOKE)
395 return 0;
396
397 offset = sizeof(struct gfs2_log_descriptor);
398
399 for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) {
400 error = gfs2_replay_read_block(jd, start, &bh);
401 if (error)
402 return error;
403
404 if (!first)
405 gfs2_metatype_check(sdp, bh, GFS2_METATYPE_LB);
406
407 while (offset + sizeof(u64) <= sdp->sd_sb.sb_bsize) {
408 blkno = be64_to_cpu(*(__be64 *)(bh->b_data + offset));
409
410 error = gfs2_revoke_add(sdp, blkno, start);
411 if (error < 0) {
412 brelse(bh);
413 return error;
414 }
415 else if (error)
416 sdp->sd_found_revokes++;
417
418 if (!--revokes)
419 break;
420 offset += sizeof(u64);
421 }
422
423 brelse(bh);
424 offset = sizeof(struct gfs2_meta_header);
425 first = 0;
426 }
427
428 return 0;
429}
430
431static void revoke_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
432{
433 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
434
435 if (error) {
436 gfs2_revoke_clean(sdp);
437 return;
438 }
439 if (pass != 1)
440 return;
441
442 fs_info(sdp, "jid=%u: Found %u revoke tags\n",
443 jd->jd_jid, sdp->sd_found_revokes);
444
445 gfs2_revoke_clean(sdp);
446}
447
448static void rg_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
449{
450 struct gfs2_rgrpd *rgd;
451 struct gfs2_trans *tr = current->journal_info;
452
453 tr->tr_touched = 1;
454
455 rgd = container_of(le, struct gfs2_rgrpd, rd_le);
456
457 gfs2_log_lock(sdp);
458 if (!list_empty(&le->le_list)){
459 gfs2_log_unlock(sdp);
460 return;
461 }
462 gfs2_rgrp_bh_hold(rgd);
463 sdp->sd_log_num_rg++;
464 list_add(&le->le_list, &sdp->sd_log_le_rg);
465 gfs2_log_unlock(sdp);
466}
467
468static void rg_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
469{
470 struct list_head *head = &sdp->sd_log_le_rg;
471 struct gfs2_rgrpd *rgd;
472
473 while (!list_empty(head)) {
474 rgd = list_entry(head->next, struct gfs2_rgrpd, rd_le.le_list);
475 list_del_init(&rgd->rd_le.le_list);
476 sdp->sd_log_num_rg--;
477
478 gfs2_rgrp_repolish_clones(rgd);
479 gfs2_rgrp_bh_put(rgd);
480 }
481 gfs2_assert_warn(sdp, !sdp->sd_log_num_rg);
482}
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500static void databuf_lo_add(struct gfs2_sbd *sdp, struct gfs2_log_element *le)
501{
502 struct gfs2_bufdata *bd = container_of(le, struct gfs2_bufdata, bd_le);
503 struct gfs2_trans *tr = current->journal_info;
504 struct address_space *mapping = bd->bd_bh->b_page->mapping;
505 struct gfs2_inode *ip = GFS2_I(mapping->host);
506
507 lock_buffer(bd->bd_bh);
508 gfs2_log_lock(sdp);
509 if (tr) {
510 if (!list_empty(&bd->bd_list_tr))
511 goto out;
512 tr->tr_touched = 1;
513 if (gfs2_is_jdata(ip)) {
514 tr->tr_num_buf++;
515 list_add(&bd->bd_list_tr, &tr->tr_list_buf);
516 }
517 }
518 if (!list_empty(&le->le_list))
519 goto out;
520
521 set_bit(GLF_LFLUSH, &bd->bd_gl->gl_flags);
522 set_bit(GLF_DIRTY, &bd->bd_gl->gl_flags);
523 if (gfs2_is_jdata(ip)) {
524 gfs2_pin(sdp, bd->bd_bh);
525 tr->tr_num_databuf_new++;
526 sdp->sd_log_num_databuf++;
527 list_add(&le->le_list, &sdp->sd_log_le_databuf);
528 } else {
529 list_add(&le->le_list, &sdp->sd_log_le_ordered);
530 }
531out:
532 gfs2_log_unlock(sdp);
533 unlock_buffer(bd->bd_bh);
534}
535
536static void gfs2_check_magic(struct buffer_head *bh)
537{
538 void *kaddr;
539 __be32 *ptr;
540
541 clear_buffer_escaped(bh);
542 kaddr = kmap_atomic(bh->b_page, KM_USER0);
543 ptr = kaddr + bh_offset(bh);
544 if (*ptr == cpu_to_be32(GFS2_MAGIC))
545 set_buffer_escaped(bh);
546 kunmap_atomic(kaddr, KM_USER0);
547}
548
549static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh,
550 struct list_head *list, struct list_head *done,
551 unsigned int n)
552{
553 struct buffer_head *bh1;
554 struct gfs2_log_descriptor *ld;
555 struct gfs2_bufdata *bd;
556 __be64 *ptr;
557
558 if (!bh)
559 return;
560
561 ld = bh_log_desc(bh);
562 ld->ld_length = cpu_to_be32(n + 1);
563 ld->ld_data1 = cpu_to_be32(n);
564
565 ptr = bh_log_ptr(bh);
566
567 get_bh(bh);
568 submit_bh(WRITE_SYNC_PLUG, bh);
569 gfs2_log_lock(sdp);
570 while(!list_empty(list)) {
571 bd = list_entry(list->next, struct gfs2_bufdata, bd_le.le_list);
572 list_move_tail(&bd->bd_le.le_list, done);
573 get_bh(bd->bd_bh);
574 while (be64_to_cpu(*ptr) != bd->bd_bh->b_blocknr) {
575 gfs2_log_incr_head(sdp);
576 ptr += 2;
577 }
578 gfs2_log_unlock(sdp);
579 lock_buffer(bd->bd_bh);
580 if (buffer_escaped(bd->bd_bh)) {
581 void *kaddr;
582 bh1 = gfs2_log_get_buf(sdp);
583 kaddr = kmap_atomic(bd->bd_bh->b_page, KM_USER0);
584 memcpy(bh1->b_data, kaddr + bh_offset(bd->bd_bh),
585 bh1->b_size);
586 kunmap_atomic(kaddr, KM_USER0);
587 *(__be32 *)bh1->b_data = 0;
588 clear_buffer_escaped(bd->bd_bh);
589 unlock_buffer(bd->bd_bh);
590 brelse(bd->bd_bh);
591 } else {
592 bh1 = gfs2_log_fake_buf(sdp, bd->bd_bh);
593 }
594 submit_bh(WRITE_SYNC_PLUG, bh1);
595 gfs2_log_lock(sdp);
596 ptr += 2;
597 }
598 gfs2_log_unlock(sdp);
599 brelse(bh);
600}
601
602
603
604
605
606
607static void databuf_lo_before_commit(struct gfs2_sbd *sdp)
608{
609 struct gfs2_bufdata *bd = NULL;
610 struct buffer_head *bh = NULL;
611 unsigned int n = 0;
612 __be64 *ptr = NULL, *end = NULL;
613 LIST_HEAD(processed);
614 LIST_HEAD(in_progress);
615
616 gfs2_log_lock(sdp);
617 while (!list_empty(&sdp->sd_log_le_databuf)) {
618 if (ptr == end) {
619 gfs2_log_unlock(sdp);
620 gfs2_write_blocks(sdp, bh, &in_progress, &processed, n);
621 n = 0;
622 bh = gfs2_get_log_desc(sdp, GFS2_LOG_DESC_JDATA);
623 ptr = bh_log_ptr(bh);
624 end = bh_ptr_end(bh) - 1;
625 gfs2_log_lock(sdp);
626 continue;
627 }
628 bd = list_entry(sdp->sd_log_le_databuf.next, struct gfs2_bufdata, bd_le.le_list);
629 list_move_tail(&bd->bd_le.le_list, &in_progress);
630 gfs2_check_magic(bd->bd_bh);
631 *ptr++ = cpu_to_be64(bd->bd_bh->b_blocknr);
632 *ptr++ = cpu_to_be64(buffer_escaped(bh) ? 1 : 0);
633 n++;
634 }
635 gfs2_log_unlock(sdp);
636 gfs2_write_blocks(sdp, bh, &in_progress, &processed, n);
637 gfs2_log_lock(sdp);
638 list_splice(&processed, &sdp->sd_log_le_databuf);
639 gfs2_log_unlock(sdp);
640}
641
642static int databuf_lo_scan_elements(struct gfs2_jdesc *jd, unsigned int start,
643 struct gfs2_log_descriptor *ld,
644 __be64 *ptr, int pass)
645{
646 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
647 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
648 struct gfs2_glock *gl = ip->i_gl;
649 unsigned int blks = be32_to_cpu(ld->ld_data1);
650 struct buffer_head *bh_log, *bh_ip;
651 u64 blkno;
652 u64 esc;
653 int error = 0;
654
655 if (pass != 1 || be32_to_cpu(ld->ld_type) != GFS2_LOG_DESC_JDATA)
656 return 0;
657
658 gfs2_replay_incr_blk(sdp, &start);
659 for (; blks; gfs2_replay_incr_blk(sdp, &start), blks--) {
660 blkno = be64_to_cpu(*ptr++);
661 esc = be64_to_cpu(*ptr++);
662
663 sdp->sd_found_blocks++;
664
665 if (gfs2_revoke_check(sdp, blkno, start))
666 continue;
667
668 error = gfs2_replay_read_block(jd, start, &bh_log);
669 if (error)
670 return error;
671
672 bh_ip = gfs2_meta_new(gl, blkno);
673 memcpy(bh_ip->b_data, bh_log->b_data, bh_log->b_size);
674
675
676 if (esc) {
677 __be32 *eptr = (__be32 *)bh_ip->b_data;
678 *eptr = cpu_to_be32(GFS2_MAGIC);
679 }
680 mark_buffer_dirty(bh_ip);
681
682 brelse(bh_log);
683 brelse(bh_ip);
684 if (error)
685 break;
686
687 sdp->sd_replayed_blocks++;
688 }
689
690 return error;
691}
692
693
694
695static void databuf_lo_after_scan(struct gfs2_jdesc *jd, int error, int pass)
696{
697 struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
698 struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
699
700 if (error) {
701 gfs2_meta_sync(ip->i_gl);
702 return;
703 }
704 if (pass != 1)
705 return;
706
707
708 gfs2_meta_sync(ip->i_gl);
709
710 fs_info(sdp, "jid=%u: Replayed %u of %u data blocks\n",
711 jd->jd_jid, sdp->sd_replayed_blocks, sdp->sd_found_blocks);
712}
713
714static void databuf_lo_after_commit(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
715{
716 struct list_head *head = &sdp->sd_log_le_databuf;
717 struct gfs2_bufdata *bd;
718
719 while (!list_empty(head)) {
720 bd = list_entry(head->next, struct gfs2_bufdata, bd_le.le_list);
721 list_del_init(&bd->bd_le.le_list);
722 sdp->sd_log_num_databuf--;
723 gfs2_unpin(sdp, bd->bd_bh, ai);
724 }
725 gfs2_assert_warn(sdp, !sdp->sd_log_num_databuf);
726}
727
728
729const struct gfs2_log_operations gfs2_buf_lops = {
730 .lo_add = buf_lo_add,
731 .lo_before_commit = buf_lo_before_commit,
732 .lo_after_commit = buf_lo_after_commit,
733 .lo_before_scan = buf_lo_before_scan,
734 .lo_scan_elements = buf_lo_scan_elements,
735 .lo_after_scan = buf_lo_after_scan,
736 .lo_name = "buf",
737};
738
739const struct gfs2_log_operations gfs2_revoke_lops = {
740 .lo_add = revoke_lo_add,
741 .lo_before_commit = revoke_lo_before_commit,
742 .lo_before_scan = revoke_lo_before_scan,
743 .lo_scan_elements = revoke_lo_scan_elements,
744 .lo_after_scan = revoke_lo_after_scan,
745 .lo_name = "revoke",
746};
747
748const struct gfs2_log_operations gfs2_rg_lops = {
749 .lo_add = rg_lo_add,
750 .lo_after_commit = rg_lo_after_commit,
751 .lo_name = "rg",
752};
753
754const struct gfs2_log_operations gfs2_databuf_lops = {
755 .lo_add = databuf_lo_add,
756 .lo_before_commit = databuf_lo_before_commit,
757 .lo_after_commit = databuf_lo_after_commit,
758 .lo_scan_elements = databuf_lo_scan_elements,
759 .lo_after_scan = databuf_lo_after_scan,
760 .lo_name = "databuf",
761};
762
763const struct gfs2_log_operations *gfs2_log_ops[] = {
764 &gfs2_databuf_lops,
765 &gfs2_buf_lops,
766 &gfs2_rg_lops,
767 &gfs2_revoke_lops,
768 NULL,
769};
770
771
