1 /*
2 * Copyright (c) 2000-2003 Silicon Graphics, Inc.
3 * All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18 #include "xfs.h"
19 #include "xfs_fs.h"
20 #include "xfs_bit.h"
21 #include "xfs_log.h"
22 #include "xfs_inum.h"
23 #include "xfs_trans.h"
24 #include "xfs_sb.h"
25 #include "xfs_ag.h"
26 #include "xfs_dir2.h"
27 #include "xfs_alloc.h"
28 #include "xfs_dmapi.h"
29 #include "xfs_quota.h"
30 #include "xfs_mount.h"
31 #include "xfs_bmap_btree.h"
32 #include "xfs_alloc_btree.h"
33 #include "xfs_ialloc_btree.h"
34 #include "xfs_dir2_sf.h"
35 #include "xfs_attr_sf.h"
36 #include "xfs_dinode.h"
37 #include "xfs_inode.h"
38 #include "xfs_bmap.h"
39 #include "xfs_btree.h"
40 #include "xfs_ialloc.h"
41 #include "xfs_rtalloc.h"
42 #include "xfs_error.h"
43 #include "xfs_itable.h"
44 #include "xfs_rw.h"
45 #include "xfs_acl.h"
46 #include "xfs_attr.h"
47 #include "xfs_buf_item.h"
48 #include "xfs_trans_priv.h"
49 #include "xfs_qm.h"
50
51 /*
52 * returns the number of iovecs needed to log the given dquot item.
53 */
54 /* ARGSUSED */
55 STATIC uint
56 xfs_qm_dquot_logitem_size(
57 xfs_dq_logitem_t *logitem)
58 {
59 /*
60 * we need only two iovecs, one for the format, one for the real thing
61 */
62 return (2);
63 }
64
65 /*
66 * fills in the vector of log iovecs for the given dquot log item.
67 */
68 STATIC void
69 xfs_qm_dquot_logitem_format(
70 xfs_dq_logitem_t *logitem,
71 xfs_log_iovec_t *logvec)
72 {
73 ASSERT(logitem);
74 ASSERT(logitem->qli_dquot);
75
76 logvec->i_addr = (xfs_caddr_t)&logitem->qli_format;
77 logvec->i_len = sizeof(xfs_dq_logformat_t);
78 XLOG_VEC_SET_TYPE(logvec, XLOG_REG_TYPE_QFORMAT);
79 logvec++;
80 logvec->i_addr = (xfs_caddr_t)&logitem->qli_dquot->q_core;
81 logvec->i_len = sizeof(xfs_disk_dquot_t);
82 XLOG_VEC_SET_TYPE(logvec, XLOG_REG_TYPE_DQUOT);
83
84 ASSERT(2 == logitem->qli_item.li_desc->lid_size);
85 logitem->qli_format.qlf_size = 2;
86
87 }
88
89 /*
90 * Increment the pin count of the given dquot.
91 * This value is protected by pinlock spinlock in the xQM structure.
92 */
93 STATIC void
94 xfs_qm_dquot_logitem_pin(
95 xfs_dq_logitem_t *logitem)
96 {
97 xfs_dquot_t *dqp;
98
99 dqp = logitem->qli_dquot;
100 ASSERT(XFS_DQ_IS_LOCKED(dqp));
101 spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
102 dqp->q_pincount++;
103 spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
104 }
105
106 /*
107 * Decrement the pin count of the given dquot, and wake up
108 * anyone in xfs_dqwait_unpin() if the count goes to 0. The
109 * dquot must have been previously pinned with a call to xfs_dqpin().
110 */
111 /* ARGSUSED */
112 STATIC void
113 xfs_qm_dquot_logitem_unpin(
114 xfs_dq_logitem_t *logitem,
115 int stale)
116 {
117 xfs_dquot_t *dqp;
118
119 dqp = logitem->qli_dquot;
120 ASSERT(dqp->q_pincount > 0);
121 spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
122 dqp->q_pincount--;
123 if (dqp->q_pincount == 0) {
124 sv_broadcast(&dqp->q_pinwait);
125 }
126 spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
127 }
128
129 /* ARGSUSED */
130 STATIC void
131 xfs_qm_dquot_logitem_unpin_remove(
132 xfs_dq_logitem_t *logitem,
133 xfs_trans_t *tp)
134 {
135 xfs_qm_dquot_logitem_unpin(logitem, 0);
136 }
137
138 /*
139 * Given the logitem, this writes the corresponding dquot entry to disk
140 * asynchronously. This is called with the dquot entry securely locked;
141 * we simply get xfs_qm_dqflush() to do the work, and unlock the dquot
142 * at the end.
143 */
144 STATIC void
145 xfs_qm_dquot_logitem_push(
146 xfs_dq_logitem_t *logitem)
147 {
148 xfs_dquot_t *dqp;
149
150 dqp = logitem->qli_dquot;
151
152 ASSERT(XFS_DQ_IS_LOCKED(dqp));
153 ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
154
155 /*
156 * Since we were able to lock the dquot's flush lock and
157 * we found it on the AIL, the dquot must be dirty. This
158 * is because the dquot is removed from the AIL while still
159 * holding the flush lock in xfs_dqflush_done(). Thus, if
160 * we found it in the AIL and were able to obtain the flush
161 * lock without sleeping, then there must not have been
162 * anyone in the process of flushing the dquot.
163 */
164 xfs_qm_dqflush(dqp, XFS_B_DELWRI);
165 xfs_dqunlock(dqp);
166 }
167
168 /*ARGSUSED*/
169 STATIC xfs_lsn_t
170 xfs_qm_dquot_logitem_committed(
171 xfs_dq_logitem_t *l,
172 xfs_lsn_t lsn)
173 {
174 /*
175 * We always re-log the entire dquot when it becomes dirty,
176 * so, the latest copy _is_ the only one that matters.
177 */
178 return (lsn);
179 }
180
181
182 /*
183 * This is called to wait for the given dquot to be unpinned.
184 * Most of these pin/unpin routines are plagiarized from inode code.
185 */
186 void
187 xfs_qm_dqunpin_wait(
188 xfs_dquot_t *dqp)
189 {
190 ASSERT(XFS_DQ_IS_LOCKED(dqp));
191 if (dqp->q_pincount == 0) {
192 return;
193 }
194
195 /*
196 * Give the log a push so we don't wait here too long.
197 */
198 xfs_log_force(dqp->q_mount, (xfs_lsn_t)0, XFS_LOG_FORCE);
199 spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
200 if (dqp->q_pincount == 0) {
201 spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
202 return;
203 }
204 sv_wait(&(dqp->q_pinwait), PINOD,
205 &(XFS_DQ_TO_QINF(dqp)->qi_pinlock), s);
206 }
207
208 /*
209 * This is called when IOP_TRYLOCK returns XFS_ITEM_PUSHBUF to indicate that
210 * the dquot is locked by us, but the flush lock isn't. So, here we are
211 * going to see if the relevant dquot buffer is incore, waiting on DELWRI.
212 * If so, we want to push it out to help us take this item off the AIL as soon
213 * as possible.
214 *
215 * We must not be holding the AIL lock at this point. Calling incore() to
216 * search the buffer cache can be a time consuming thing, and AIL lock is a
217 * spinlock.
218 */
219 STATIC void
220 xfs_qm_dquot_logitem_pushbuf(
221 xfs_dq_logitem_t *qip)
222 {
223 xfs_dquot_t *dqp;
224 xfs_mount_t *mp;
225 xfs_buf_t *bp;
226 uint dopush;
227
228 dqp = qip->qli_dquot;
229 ASSERT(XFS_DQ_IS_LOCKED(dqp));
230
231 /*
232 * The qli_pushbuf_flag keeps others from
233 * trying to duplicate our effort.
234 */
235 ASSERT(qip->qli_pushbuf_flag != 0);
236 ASSERT(qip->qli_push_owner == current_pid());
237
238 /*
239 * If flushlock isn't locked anymore, chances are that the
240 * inode flush completed and the inode was taken off the AIL.
241 * So, just get out.
242 */
243 if (!issemalocked(&(dqp->q_flock)) ||
244 ((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
245 qip->qli_pushbuf_flag = 0;
246 xfs_dqunlock(dqp);
247 return;
248 }
249 mp = dqp->q_mount;
250 bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno,
251 XFS_QI_DQCHUNKLEN(mp),
252 XFS_INCORE_TRYLOCK);
253 if (bp != NULL) {
254 if (XFS_BUF_ISDELAYWRITE(bp)) {
255 dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
256 issemalocked(&(dqp->q_flock)));
257 qip->qli_pushbuf_flag = 0;
258 xfs_dqunlock(dqp);
259
260 if (XFS_BUF_ISPINNED(bp)) {
261 xfs_log_force(mp, (xfs_lsn_t)0,
262 XFS_LOG_FORCE);
263 }
264 if (dopush) {
265 #ifdef XFSRACEDEBUG
266 delay_for_intr();
267 delay(300);
268 #endif
269 xfs_bawrite(mp, bp);
270 } else {
271 xfs_buf_relse(bp);
272 }
273 } else {
274 qip->qli_pushbuf_flag = 0;
275 xfs_dqunlock(dqp);
276 xfs_buf_relse(bp);
277 }
278 return;
279 }
280
281 qip->qli_pushbuf_flag = 0;
282 xfs_dqunlock(dqp);
283 }
284
285 /*
286 * This is called to attempt to lock the dquot associated with this
287 * dquot log item. Don't sleep on the dquot lock or the flush lock.
288 * If the flush lock is already held, indicating that the dquot has
289 * been or is in the process of being flushed, then see if we can
290 * find the dquot's buffer in the buffer cache without sleeping. If
291 * we can and it is marked delayed write, then we want to send it out.
292 * We delay doing so until the push routine, though, to avoid sleeping
293 * in any device strategy routines.
294 */
295 STATIC uint
296 xfs_qm_dquot_logitem_trylock(
297 xfs_dq_logitem_t *qip)
298 {
299 xfs_dquot_t *dqp;
300 uint retval;
301
302 dqp = qip->qli_dquot;
303 if (dqp->q_pincount > 0)
304 return (XFS_ITEM_PINNED);
305
306 if (! xfs_qm_dqlock_nowait(dqp))
307 return (XFS_ITEM_LOCKED);
308
309 retval = XFS_ITEM_SUCCESS;
310 if (! xfs_qm_dqflock_nowait(dqp)) {
311 /*
312 * The dquot is already being flushed. It may have been
313 * flushed delayed write, however, and we don't want to
314 * get stuck waiting for that to complete. So, we want to check
315 * to see if we can lock the dquot's buffer without sleeping.
316 * If we can and it is marked for delayed write, then we
317 * hold it and send it out from the push routine. We don't
318 * want to do that now since we might sleep in the device
319 * strategy routine. We also don't want to grab the buffer lock
320 * here because we'd like not to call into the buffer cache
321 * while holding the AIL lock.
322 * Make sure to only return PUSHBUF if we set pushbuf_flag
323 * ourselves. If someone else is doing it then we don't
324 * want to go to the push routine and duplicate their efforts.
325 */
326 if (qip->qli_pushbuf_flag == 0) {
327 qip->qli_pushbuf_flag = 1;
328 ASSERT(qip->qli_format.qlf_blkno == dqp->q_blkno);
329 #ifdef DEBUG
330 qip->qli_push_owner = current_pid();
331 #endif
332 /*
333 * The dquot is left locked.
334 */
335 retval = XFS_ITEM_PUSHBUF;
336 } else {
337 retval = XFS_ITEM_FLUSHING;
338 xfs_dqunlock_nonotify(dqp);
339 }
340 }
341
342 ASSERT(qip->qli_item.li_flags & XFS_LI_IN_AIL);
343 return (retval);
344 }
345
346
347 /*
348 * Unlock the dquot associated with the log item.
349 * Clear the fields of the dquot and dquot log item that
350 * are specific to the current transaction. If the
351 * hold flags is set, do not unlock the dquot.
352 */
353 STATIC void
354 xfs_qm_dquot_logitem_unlock(
355 xfs_dq_logitem_t *ql)
356 {
357 xfs_dquot_t *dqp;
358
359 ASSERT(ql != NULL);
360 dqp = ql->qli_dquot;
361 ASSERT(XFS_DQ_IS_LOCKED(dqp));
362
363 /*
364 * Clear the transaction pointer in the dquot
365 */
366 dqp->q_transp = NULL;
367
368 /*
369 * dquots are never 'held' from getting unlocked at the end of
370 * a transaction. Their locking and unlocking is hidden inside the
371 * transaction layer, within trans_commit. Hence, no LI_HOLD flag
372 * for the logitem.
373 */
374 xfs_dqunlock(dqp);
375 }
376
377
378 /*
379 * this needs to stamp an lsn into the dquot, I think.
380 * rpc's that look at user dquot's would then have to
381 * push on the dependency recorded in the dquot
382 */
383 /* ARGSUSED */
384 STATIC void
385 xfs_qm_dquot_logitem_committing(
386 xfs_dq_logitem_t *l,
387 xfs_lsn_t lsn)
388 {
389 return;
390 }
391
392
393 /*
394 * This is the ops vector for dquots
395 */
396 static struct xfs_item_ops xfs_dquot_item_ops = {
397 .iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_size,
398 .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
399 xfs_qm_dquot_logitem_format,
400 .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_pin,
401 .iop_unpin = (void(*)(xfs_log_item_t*, int))
402 xfs_qm_dquot_logitem_unpin,
403 .iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
404 xfs_qm_dquot_logitem_unpin_remove,
405 .iop_trylock = (uint(*)(xfs_log_item_t*))
406 xfs_qm_dquot_logitem_trylock,
407 .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unlock,
408 .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
409 xfs_qm_dquot_logitem_committed,
410 .iop_push = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_push,
411 .iop_pushbuf = (void(*)(xfs_log_item_t*))
412 xfs_qm_dquot_logitem_pushbuf,
413 .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
414 xfs_qm_dquot_logitem_committing
415 };
416
417 /*
418 * Initialize the dquot log item for a newly allocated dquot.
419 * The dquot isn't locked at this point, but it isn't on any of the lists
420 * either, so we don't care.
421 */
422 void
423 xfs_qm_dquot_logitem_init(
424 struct xfs_dquot *dqp)
425 {
426 xfs_dq_logitem_t *lp;
427 lp = &dqp->q_logitem;
428
429 lp->qli_item.li_type = XFS_LI_DQUOT;
430 lp->qli_item.li_ops = &xfs_dquot_item_ops;
431 lp->qli_item.li_mountp = dqp->q_mount;
432 lp->qli_dquot = dqp;
433 lp->qli_format.qlf_type = XFS_LI_DQUOT;
434 lp->qli_format.qlf_id = be32_to_cpu(dqp->q_core.d_id);
435 lp->qli_format.qlf_blkno = dqp->q_blkno;
436 lp->qli_format.qlf_len = 1;
437 /*
438 * This is just the offset of this dquot within its buffer
439 * (which is currently 1 FSB and probably won't change).
440 * Hence 32 bits for this offset should be just fine.
441 * Alternatively, we can store (bufoffset / sizeof(xfs_dqblk_t))
442 * here, and recompute it at recovery time.
443 */
444 lp->qli_format.qlf_boffset = (__uint32_t)dqp->q_bufoffset;
445 }
446
447 /*------------------ QUOTAOFF LOG ITEMS -------------------*/
448
449 /*
450 * This returns the number of iovecs needed to log the given quotaoff item.
451 * We only need 1 iovec for an quotaoff item. It just logs the
452 * quotaoff_log_format structure.
453 */
454 /*ARGSUSED*/
455 STATIC uint
456 xfs_qm_qoff_logitem_size(xfs_qoff_logitem_t *qf)
457 {
458 return (1);
459 }
460
461 /*
462 * This is called to fill in the vector of log iovecs for the
463 * given quotaoff log item. We use only 1 iovec, and we point that
464 * at the quotaoff_log_format structure embedded in the quotaoff item.
465 * It is at this point that we assert that all of the extent
466 * slots in the quotaoff item have been filled.
467 */
468 STATIC void
469 xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t *qf,
470 xfs_log_iovec_t *log_vector)
471 {
472 ASSERT(qf->qql_format.qf_type == XFS_LI_QUOTAOFF);
473
474 log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
475 log_vector->i_len = sizeof(xfs_qoff_logitem_t);
476 XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_QUOTAOFF);
477 qf->qql_format.qf_size = 1;
478 }
479
480
481 /*
482 * Pinning has no meaning for an quotaoff item, so just return.
483 */
484 /*ARGSUSED*/
485 STATIC void
486 xfs_qm_qoff_logitem_pin(xfs_qoff_logitem_t *qf)
487 {
488 return;
489 }
490
491
492 /*
493 * Since pinning has no meaning for an quotaoff item, unpinning does
494 * not either.
495 */
496 /*ARGSUSED*/
497 STATIC void
498 xfs_qm_qoff_logitem_unpin(xfs_qoff_logitem_t *qf, int stale)
499 {
500 return;
501 }
502
503 /*ARGSUSED*/
504 STATIC void
505 xfs_qm_qoff_logitem_unpin_remove(xfs_qoff_logitem_t *qf, xfs_trans_t *tp)
506 {
507 return;
508 }
509
510 /*
511 * Quotaoff items have no locking, so just return success.
512 */
513 /*ARGSUSED*/
514 STATIC uint
515 xfs_qm_qoff_logitem_trylock(xfs_qoff_logitem_t *qf)
516 {
517 return XFS_ITEM_LOCKED;
518 }
519
520 /*
521 * Quotaoff items have no locking or pushing, so return failure
522 * so that the caller doesn't bother with us.
523 */
524 /*ARGSUSED*/
525 STATIC void
526 xfs_qm_qoff_logitem_unlock(xfs_qoff_logitem_t *qf)
527 {
528 return;
529 }
530
531 /*
532 * The quotaoff-start-item is logged only once and cannot be moved in the log,
533 * so simply return the lsn at which it's been logged.
534 */
535 /*ARGSUSED*/
536 STATIC xfs_lsn_t
537 xfs_qm_qoff_logitem_committed(xfs_qoff_logitem_t *qf, xfs_lsn_t lsn)
538 {
539 return (lsn);
540 }
541
542 /*
543 * There isn't much you can do to push on an quotaoff item. It is simply
544 * stuck waiting for the log to be flushed to disk.
545 */
546 /*ARGSUSED*/
547 STATIC void
548 xfs_qm_qoff_logitem_push(xfs_qoff_logitem_t *qf)
549 {
550 return;
551 }
552
553
554 /*ARGSUSED*/
555 STATIC xfs_lsn_t
556 xfs_qm_qoffend_logitem_committed(
557 xfs_qoff_logitem_t *qfe,
558 xfs_lsn_t lsn)
559 {
560 xfs_qoff_logitem_t *qfs;
561
562 qfs = qfe->qql_start_lip;
563 spin_lock(&qfs->qql_item.li_mountp->m_ail_lock);
564 /*
565 * Delete the qoff-start logitem from the AIL.
566 * xfs_trans_delete_ail() drops the AIL lock.
567 */
568 xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs);
569 kmem_free(qfs, sizeof(xfs_qoff_logitem_t));
570 kmem_free(qfe, sizeof(xfs_qoff_logitem_t));
571 return (xfs_lsn_t)-1;
572 }
573
574 /*
575 * XXX rcc - don't know quite what to do with this. I think we can
576 * just ignore it. The only time that isn't the case is if we allow
577 * the client to somehow see that quotas have been turned off in which
578 * we can't allow that to get back until the quotaoff hits the disk.
579 * So how would that happen? Also, do we need different routines for
580 * quotaoff start and quotaoff end? I suspect the answer is yes but
581 * to be sure, I need to look at the recovery code and see how quota off
582 * recovery is handled (do we roll forward or back or do something else).
583 * If we roll forwards or backwards, then we need two separate routines,
584 * one that does nothing and one that stamps in the lsn that matters
585 * (truly makes the quotaoff irrevocable). If we do something else,
586 * then maybe we don't need two.
587 */
588 /* ARGSUSED */
589 STATIC void
590 xfs_qm_qoff_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
591 {
592 return;
593 }
594
595 /* ARGSUSED */
596 STATIC void
597 xfs_qm_qoffend_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
598 {
599 return;
600 }
601
602 static struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
603 .iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
604 .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
605 xfs_qm_qoff_logitem_format,
606 .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
607 .iop_unpin = (void(*)(xfs_log_item_t* ,int))
608 xfs_qm_qoff_logitem_unpin,
609 .iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
610 xfs_qm_qoff_logitem_unpin_remove,
611 .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
612 .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
613 .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
614 xfs_qm_qoffend_logitem_committed,
615 .iop_push = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
616 .iop_pushbuf = NULL,
617 .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
618 xfs_qm_qoffend_logitem_committing
619 };
620
621 /*
622 * This is the ops vector shared by all quotaoff-start log items.
623 */
624 static struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
625 .iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
626 .iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
627 xfs_qm_qoff_logitem_format,
628 .iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
629 .iop_unpin = (void(*)(xfs_log_item_t*, int))
630 xfs_qm_qoff_logitem_unpin,
631 .iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
632 xfs_qm_qoff_logitem_unpin_remove,
633 .iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
634 .iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
635 .iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
636 xfs_qm_qoff_logitem_committed,
637 .iop_push = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
638 .iop_pushbuf = NULL,
639 .iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
640 xfs_qm_qoff_logitem_committing
641 };
642
643 /*
644 * Allocate and initialize an quotaoff item of the correct quota type(s).
645 */
646 xfs_qoff_logitem_t *
647 xfs_qm_qoff_logitem_init(
648 struct xfs_mount *mp,
649 xfs_qoff_logitem_t *start,
650 uint flags)
651 {
652 xfs_qoff_logitem_t *qf;
653
654 qf = (xfs_qoff_logitem_t*) kmem_zalloc(sizeof(xfs_qoff_logitem_t), KM_SLEEP);
655
656 qf->qql_item.li_type = XFS_LI_QUOTAOFF;
657 if (start)
658 qf->qql_item.li_ops = &xfs_qm_qoffend_logitem_ops;
659 else
660 qf->qql_item.li_ops = &xfs_qm_qoff_logitem_ops;
661 qf->qql_item.li_mountp = mp;
662 qf->qql_format.qf_type = XFS_LI_QUOTAOFF;
663 qf->qql_format.qf_flags = flags;
664 qf->qql_start_lip = start;
665 return (qf);
666 }
667
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