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18#include "xfs.h"
19#include "xfs_fs.h"
20#include "xfs_format.h"
21#include "xfs_log_format.h"
22#include "xfs_trans_resv.h"
23#include "xfs_mount.h"
24#include "xfs_inode.h"
25#include "xfs_quota.h"
26#include "xfs_error.h"
27#include "xfs_trans.h"
28#include "xfs_buf_item.h"
29#include "xfs_trans_priv.h"
30#include "xfs_qm.h"
31#include "xfs_log.h"
32
33static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip)
34{
35 return container_of(lip, struct xfs_dq_logitem, qli_item);
36}
37
38
39
40
41STATIC void
42xfs_qm_dquot_logitem_size(
43 struct xfs_log_item *lip,
44 int *nvecs,
45 int *nbytes)
46{
47 *nvecs += 2;
48 *nbytes += sizeof(struct xfs_dq_logformat) +
49 sizeof(struct xfs_disk_dquot);
50}
51
52
53
54
55STATIC void
56xfs_qm_dquot_logitem_format(
57 struct xfs_log_item *lip,
58 struct xfs_log_vec *lv)
59{
60 struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip);
61 struct xfs_log_iovec *vecp = NULL;
62 struct xfs_dq_logformat *qlf;
63
64 qlf = xlog_prepare_iovec(lv, &vecp, XLOG_REG_TYPE_QFORMAT);
65 qlf->qlf_type = XFS_LI_DQUOT;
66 qlf->qlf_size = 2;
67 qlf->qlf_id = be32_to_cpu(qlip->qli_dquot->q_core.d_id);
68 qlf->qlf_blkno = qlip->qli_dquot->q_blkno;
69 qlf->qlf_len = 1;
70 qlf->qlf_boffset = qlip->qli_dquot->q_bufoffset;
71 xlog_finish_iovec(lv, vecp, sizeof(struct xfs_dq_logformat));
72
73 xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_DQUOT,
74 &qlip->qli_dquot->q_core,
75 sizeof(struct xfs_disk_dquot));
76}
77
78
79
80
81STATIC void
82xfs_qm_dquot_logitem_pin(
83 struct xfs_log_item *lip)
84{
85 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
86
87 ASSERT(XFS_DQ_IS_LOCKED(dqp));
88 atomic_inc(&dqp->q_pincount);
89}
90
91
92
93
94
95
96
97STATIC void
98xfs_qm_dquot_logitem_unpin(
99 struct xfs_log_item *lip,
100 int remove)
101{
102 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
103
104 ASSERT(atomic_read(&dqp->q_pincount) > 0);
105 if (atomic_dec_and_test(&dqp->q_pincount))
106 wake_up(&dqp->q_pinwait);
107}
108
109STATIC xfs_lsn_t
110xfs_qm_dquot_logitem_committed(
111 struct xfs_log_item *lip,
112 xfs_lsn_t lsn)
113{
114
115
116
117
118 return lsn;
119}
120
121
122
123
124
125void
126xfs_qm_dqunpin_wait(
127 struct xfs_dquot *dqp)
128{
129 ASSERT(XFS_DQ_IS_LOCKED(dqp));
130 if (atomic_read(&dqp->q_pincount) == 0)
131 return;
132
133
134
135
136 xfs_log_force(dqp->q_mount, 0);
137 wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0));
138}
139
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146
147
148STATIC void
149xfs_dquot_item_error(
150 struct xfs_log_item *lip,
151 struct xfs_buf *bp)
152{
153 ASSERT(!completion_done(&DQUOT_ITEM(lip)->qli_dquot->q_flush));
154 xfs_set_li_failed(lip, bp);
155}
156
157STATIC uint
158xfs_qm_dquot_logitem_push(
159 struct xfs_log_item *lip,
160 struct list_head *buffer_list)
161 __releases(&lip->li_ailp->ail_lock)
162 __acquires(&lip->li_ailp->ail_lock)
163{
164 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
165 struct xfs_buf *bp = lip->li_buf;
166 uint rval = XFS_ITEM_SUCCESS;
167 int error;
168
169 if (atomic_read(&dqp->q_pincount) > 0)
170 return XFS_ITEM_PINNED;
171
172
173
174
175
176 if (lip->li_flags & XFS_LI_FAILED) {
177 if (!xfs_buf_trylock(bp))
178 return XFS_ITEM_LOCKED;
179
180 if (!xfs_buf_resubmit_failed_buffers(bp, buffer_list))
181 rval = XFS_ITEM_FLUSHING;
182
183 xfs_buf_unlock(bp);
184 return rval;
185 }
186
187 if (!xfs_dqlock_nowait(dqp))
188 return XFS_ITEM_LOCKED;
189
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192
193
194 if (atomic_read(&dqp->q_pincount) > 0) {
195 rval = XFS_ITEM_PINNED;
196 goto out_unlock;
197 }
198
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201
202
203
204 if (!xfs_dqflock_nowait(dqp)) {
205 rval = XFS_ITEM_FLUSHING;
206 goto out_unlock;
207 }
208
209 spin_unlock(&lip->li_ailp->ail_lock);
210
211 error = xfs_qm_dqflush(dqp, &bp);
212 if (error) {
213 xfs_warn(dqp->q_mount, "%s: push error %d on dqp "PTR_FMT,
214 __func__, error, dqp);
215 } else {
216 if (!xfs_buf_delwri_queue(bp, buffer_list))
217 rval = XFS_ITEM_FLUSHING;
218 xfs_buf_relse(bp);
219 }
220
221 spin_lock(&lip->li_ailp->ail_lock);
222out_unlock:
223 xfs_dqunlock(dqp);
224 return rval;
225}
226
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230
231
232
233STATIC void
234xfs_qm_dquot_logitem_unlock(
235 struct xfs_log_item *lip)
236{
237 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
238
239 ASSERT(XFS_DQ_IS_LOCKED(dqp));
240
241
242
243
244 dqp->q_transp = NULL;
245
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252 xfs_dqunlock(dqp);
253}
254
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259
260STATIC void
261xfs_qm_dquot_logitem_committing(
262 struct xfs_log_item *lip,
263 xfs_lsn_t lsn)
264{
265}
266
267
268
269
270static const struct xfs_item_ops xfs_dquot_item_ops = {
271 .iop_size = xfs_qm_dquot_logitem_size,
272 .iop_format = xfs_qm_dquot_logitem_format,
273 .iop_pin = xfs_qm_dquot_logitem_pin,
274 .iop_unpin = xfs_qm_dquot_logitem_unpin,
275 .iop_unlock = xfs_qm_dquot_logitem_unlock,
276 .iop_committed = xfs_qm_dquot_logitem_committed,
277 .iop_push = xfs_qm_dquot_logitem_push,
278 .iop_committing = xfs_qm_dquot_logitem_committing,
279 .iop_error = xfs_dquot_item_error
280};
281
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285
286
287void
288xfs_qm_dquot_logitem_init(
289 struct xfs_dquot *dqp)
290{
291 struct xfs_dq_logitem *lp = &dqp->q_logitem;
292
293 xfs_log_item_init(dqp->q_mount, &lp->qli_item, XFS_LI_DQUOT,
294 &xfs_dquot_item_ops);
295 lp->qli_dquot = dqp;
296}
297
298
299
300static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip)
301{
302 return container_of(lip, struct xfs_qoff_logitem, qql_item);
303}
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310
311STATIC void
312xfs_qm_qoff_logitem_size(
313 struct xfs_log_item *lip,
314 int *nvecs,
315 int *nbytes)
316{
317 *nvecs += 1;
318 *nbytes += sizeof(struct xfs_qoff_logitem);
319}
320
321STATIC void
322xfs_qm_qoff_logitem_format(
323 struct xfs_log_item *lip,
324 struct xfs_log_vec *lv)
325{
326 struct xfs_qoff_logitem *qflip = QOFF_ITEM(lip);
327 struct xfs_log_iovec *vecp = NULL;
328 struct xfs_qoff_logformat *qlf;
329
330 qlf = xlog_prepare_iovec(lv, &vecp, XLOG_REG_TYPE_QUOTAOFF);
331 qlf->qf_type = XFS_LI_QUOTAOFF;
332 qlf->qf_size = 1;
333 qlf->qf_flags = qflip->qql_flags;
334 xlog_finish_iovec(lv, vecp, sizeof(struct xfs_qoff_logitem));
335}
336
337
338
339
340STATIC void
341xfs_qm_qoff_logitem_pin(
342 struct xfs_log_item *lip)
343{
344}
345
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349
350STATIC void
351xfs_qm_qoff_logitem_unpin(
352 struct xfs_log_item *lip,
353 int remove)
354{
355}
356
357
358
359
360
361STATIC uint
362xfs_qm_qoff_logitem_push(
363 struct xfs_log_item *lip,
364 struct list_head *buffer_list)
365{
366 return XFS_ITEM_LOCKED;
367}
368
369
370
371
372
373STATIC void
374xfs_qm_qoff_logitem_unlock(
375 struct xfs_log_item *lip)
376{
377}
378
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380
381
382
383STATIC xfs_lsn_t
384xfs_qm_qoff_logitem_committed(
385 struct xfs_log_item *lip,
386 xfs_lsn_t lsn)
387{
388 return lsn;
389}
390
391STATIC xfs_lsn_t
392xfs_qm_qoffend_logitem_committed(
393 struct xfs_log_item *lip,
394 xfs_lsn_t lsn)
395{
396 struct xfs_qoff_logitem *qfe = QOFF_ITEM(lip);
397 struct xfs_qoff_logitem *qfs = qfe->qql_start_lip;
398 struct xfs_ail *ailp = qfs->qql_item.li_ailp;
399
400
401
402
403
404 spin_lock(&ailp->ail_lock);
405 xfs_trans_ail_delete(ailp, &qfs->qql_item, SHUTDOWN_LOG_IO_ERROR);
406
407 kmem_free(qfs->qql_item.li_lv_shadow);
408 kmem_free(lip->li_lv_shadow);
409 kmem_free(qfs);
410 kmem_free(qfe);
411 return (xfs_lsn_t)-1;
412}
413
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427
428STATIC void
429xfs_qm_qoff_logitem_committing(
430 struct xfs_log_item *lip,
431 xfs_lsn_t commit_lsn)
432{
433}
434
435static const struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
436 .iop_size = xfs_qm_qoff_logitem_size,
437 .iop_format = xfs_qm_qoff_logitem_format,
438 .iop_pin = xfs_qm_qoff_logitem_pin,
439 .iop_unpin = xfs_qm_qoff_logitem_unpin,
440 .iop_unlock = xfs_qm_qoff_logitem_unlock,
441 .iop_committed = xfs_qm_qoffend_logitem_committed,
442 .iop_push = xfs_qm_qoff_logitem_push,
443 .iop_committing = xfs_qm_qoff_logitem_committing
444};
445
446
447
448
449static const struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
450 .iop_size = xfs_qm_qoff_logitem_size,
451 .iop_format = xfs_qm_qoff_logitem_format,
452 .iop_pin = xfs_qm_qoff_logitem_pin,
453 .iop_unpin = xfs_qm_qoff_logitem_unpin,
454 .iop_unlock = xfs_qm_qoff_logitem_unlock,
455 .iop_committed = xfs_qm_qoff_logitem_committed,
456 .iop_push = xfs_qm_qoff_logitem_push,
457 .iop_committing = xfs_qm_qoff_logitem_committing
458};
459
460
461
462
463struct xfs_qoff_logitem *
464xfs_qm_qoff_logitem_init(
465 struct xfs_mount *mp,
466 struct xfs_qoff_logitem *start,
467 uint flags)
468{
469 struct xfs_qoff_logitem *qf;
470
471 qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP);
472
473 xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
474 &xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);
475 qf->qql_item.li_mountp = mp;
476 qf->qql_start_lip = start;
477 qf->qql_flags = flags;
478 return qf;
479}
480