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2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f 
 kernel/fs/xfs/xfs_dquot_item.c
....@@ -5,13 +5,13 @@
55  */
66 #include "xfs.h"
77 #include "xfs_fs.h"
8
+#include "xfs_shared.h"
89 #include "xfs_format.h"
910 #include "xfs_log_format.h"
1011 #include "xfs_trans_resv.h"
1112 #include "xfs_mount.h"
1213 #include "xfs_inode.h"
1314 #include "xfs_quota.h"
14
-#include "xfs_error.h"
1515 #include "xfs_trans.h"
1616 #include "xfs_buf_item.h"
1717 #include "xfs_trans_priv.h"
....@@ -45,6 +45,7 @@
4545 	struct xfs_log_item	*lip,
4646 	struct xfs_log_vec	*lv)
4747 {
48
+	struct xfs_disk_dquot	ddq;
4849 	struct xfs_dq_logitem	*qlip = DQUOT_ITEM(lip);
4950 	struct xfs_log_iovec	*vecp = NULL;
5051 	struct xfs_dq_logformat	*qlf;
....@@ -52,14 +53,15 @@
5253 	qlf = xlog_prepare_iovec(lv, &vecp, XLOG_REG_TYPE_QFORMAT);
5354 	qlf->qlf_type = XFS_LI_DQUOT;
5455 	qlf->qlf_size = 2;
55
-	qlf->qlf_id = be32_to_cpu(qlip->qli_dquot->q_core.d_id);
56
+	qlf->qlf_id = qlip->qli_dquot->q_id;
5657 	qlf->qlf_blkno = qlip->qli_dquot->q_blkno;
5758 	qlf->qlf_len = 1;
5859 	qlf->qlf_boffset = qlip->qli_dquot->q_bufoffset;
5960 	xlog_finish_iovec(lv, vecp, sizeof(struct xfs_dq_logformat));
6061 
61
-	xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_DQUOT,
62
-			&qlip->qli_dquot->q_core,
62
+	xfs_dquot_to_disk(&ddq, qlip->qli_dquot);
63
+
64
+	xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_DQUOT, &ddq,
6365 			sizeof(struct xfs_disk_dquot));
6466 }
6567 
....@@ -94,18 +96,6 @@
9496 		wake_up(&dqp->q_pinwait);
9597 }
9698 
97
-STATIC xfs_lsn_t
98
-xfs_qm_dquot_logitem_committed(
99
-	struct xfs_log_item	*lip,
100
-	xfs_lsn_t		lsn)
101
-{
102
-	/*
103
-	 * We always re-log the entire dquot when it becomes dirty,
104
-	 * so, the latest copy _is_ the only one that matters.
105
-	 */
106
-	return lsn;
107
-}
108
-
10999 /*
110100  * This is called to wait for the given dquot to be unpinned.
111101  * Most of these pin/unpin routines are plagiarized from inode code.
....@@ -125,23 +115,6 @@
125115 	wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0));
126116 }
127117 
128
-/*
129
- * Callback used to mark a buffer with XFS_LI_FAILED when items in the buffer
130
- * have been failed during writeback
131
- *
132
- * this informs the AIL that the dquot is already flush locked on the next push,
133
- * and acquires a hold on the buffer to ensure that it isn't reclaimed before
134
- * dirty data makes it to disk.
135
- */
136
-STATIC void
137
-xfs_dquot_item_error(
138
-	struct xfs_log_item	*lip,
139
-	struct xfs_buf		*bp)
140
-{
141
-	ASSERT(!completion_done(&DQUOT_ITEM(lip)->qli_dquot->q_flush));
142
-	xfs_set_li_failed(lip, bp);
143
-}
144
-
145118 STATIC uint
146119 xfs_qm_dquot_logitem_push(
147120 	struct xfs_log_item	*lip,
....@@ -156,21 +129,6 @@
156129 
157130 	if (atomic_read(&dqp->q_pincount) > 0)
158131 		return XFS_ITEM_PINNED;
159
-
160
-	/*
161
-	 * The buffer containing this item failed to be written back
162
-	 * previously. Resubmit the buffer for IO
163
-	 */
164
-	if (test_bit(XFS_LI_FAILED, &lip->li_flags)) {
165
-		if (!xfs_buf_trylock(bp))
166
-			return XFS_ITEM_LOCKED;
167
-
168
-		if (!xfs_buf_resubmit_failed_buffers(bp, buffer_list))
169
-			rval = XFS_ITEM_FLUSHING;
170
-
171
-		xfs_buf_unlock(bp);
172
-		return rval;
173
-	}
174132 
175133 	if (!xfs_dqlock_nowait(dqp))
176134 		return XFS_ITEM_LOCKED;
....@@ -201,7 +159,8 @@
201159 		if (!xfs_buf_delwri_queue(bp, buffer_list))
202160 			rval = XFS_ITEM_FLUSHING;
203161 		xfs_buf_relse(bp);
204
-	}
162
+	} else if (error == -EAGAIN)
163
+		rval = XFS_ITEM_LOCKED;
205164 
206165 	spin_lock(&lip->li_ailp->ail_lock);
207166 out_unlock:
....@@ -209,24 +168,13 @@
209168 	return rval;
210169 }
211170 
212
-/*
213
- * Unlock the dquot associated with the log item.
214
- * Clear the fields of the dquot and dquot log item that
215
- * are specific to the current transaction.  If the
216
- * hold flags is set, do not unlock the dquot.
217
- */
218171 STATIC void
219
-xfs_qm_dquot_logitem_unlock(
172
+xfs_qm_dquot_logitem_release(
220173 	struct xfs_log_item	*lip)
221174 {
222175 	struct xfs_dquot	*dqp = DQUOT_ITEM(lip)->qli_dquot;
223176 
224177 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
225
-
226
-	/*
227
-	 * Clear the transaction pointer in the dquot
228
-	 */
229
-	dqp->q_transp = NULL;
230178 
231179 	/*
232180 	 * dquots are never 'held' from getting unlocked at the end of
....@@ -237,31 +185,22 @@
237185 	xfs_dqunlock(dqp);
238186 }
239187 
240
-/*
241
- * this needs to stamp an lsn into the dquot, I think.
242
- * rpc's that look at user dquot's would then have to
243
- * push on the dependency recorded in the dquot
244
- */
245188 STATIC void
246189 xfs_qm_dquot_logitem_committing(
247190 	struct xfs_log_item	*lip,
248
-	xfs_lsn_t		lsn)
191
+	xfs_csn_t		seq)
249192 {
193
+	return xfs_qm_dquot_logitem_release(lip);
250194 }
251195 
252
-/*
253
- * This is the ops vector for dquots
254
- */
255196 static const struct xfs_item_ops xfs_dquot_item_ops = {
256197 	.iop_size	= xfs_qm_dquot_logitem_size,
257198 	.iop_format	= xfs_qm_dquot_logitem_format,
258199 	.iop_pin	= xfs_qm_dquot_logitem_pin,
259200 	.iop_unpin	= xfs_qm_dquot_logitem_unpin,
260
-	.iop_unlock	= xfs_qm_dquot_logitem_unlock,
261
-	.iop_committed	= xfs_qm_dquot_logitem_committed,
201
+	.iop_release	= xfs_qm_dquot_logitem_release,
202
+	.iop_committing	= xfs_qm_dquot_logitem_committing,
262203 	.iop_push	= xfs_qm_dquot_logitem_push,
263
-	.iop_committing = xfs_qm_dquot_logitem_committing,
264
-	.iop_error	= xfs_dquot_item_error
265204 };
266205 
267206 /*
....@@ -320,26 +259,6 @@
320259 }
321260 
322261 /*
323
- * Pinning has no meaning for an quotaoff item, so just return.
324
- */
325
-STATIC void
326
-xfs_qm_qoff_logitem_pin(
327
-	struct xfs_log_item	*lip)
328
-{
329
-}
330
-
331
-/*
332
- * Since pinning has no meaning for an quotaoff item, unpinning does
333
- * not either.
334
- */
335
-STATIC void
336
-xfs_qm_qoff_logitem_unpin(
337
-	struct xfs_log_item	*lip,
338
-	int			remove)
339
-{
340
-}
341
-
342
-/*
343262  * There isn't much you can do to push a quotaoff item.  It is simply
344263  * stuck waiting for the log to be flushed to disk.
345264  */
....@@ -351,28 +270,6 @@
351270 	return XFS_ITEM_LOCKED;
352271 }
353272 
354
-/*
355
- * Quotaoff items have no locking or pushing, so return failure
356
- * so that the caller doesn't bother with us.
357
- */
358
-STATIC void
359
-xfs_qm_qoff_logitem_unlock(
360
-	struct xfs_log_item	*lip)
361
-{
362
-}
363
-
364
-/*
365
- * The quotaoff-start-item is logged only once and cannot be moved in the log,
366
- * so simply return the lsn at which it's been logged.
367
- */
368
-STATIC xfs_lsn_t
369
-xfs_qm_qoff_logitem_committed(
370
-	struct xfs_log_item	*lip,
371
-	xfs_lsn_t		lsn)
372
-{
373
-	return lsn;
374
-}
375
-
376273 STATIC xfs_lsn_t
377274 xfs_qm_qoffend_logitem_committed(
378275 	struct xfs_log_item	*lip,
....@@ -380,67 +277,60 @@
380277 {
381278 	struct xfs_qoff_logitem	*qfe = QOFF_ITEM(lip);
382279 	struct xfs_qoff_logitem	*qfs = qfe->qql_start_lip;
383
-	struct xfs_ail		*ailp = qfs->qql_item.li_ailp;
384280 
385
-	/*
386
-	 * Delete the qoff-start logitem from the AIL.
387
-	 * xfs_trans_ail_delete() drops the AIL lock.
388
-	 */
389
-	spin_lock(&ailp->ail_lock);
390
-	xfs_trans_ail_delete(ailp, &qfs->qql_item, SHUTDOWN_LOG_IO_ERROR);
281
+	xfs_qm_qoff_logitem_relse(qfs);
391282 
392
-	kmem_free(qfs->qql_item.li_lv_shadow);
393283 	kmem_free(lip->li_lv_shadow);
394
-	kmem_free(qfs);
395284 	kmem_free(qfe);
396285 	return (xfs_lsn_t)-1;
397286 }
398287 
399
-/*
400
- * XXX rcc - don't know quite what to do with this.  I think we can
401
- * just ignore it.  The only time that isn't the case is if we allow
402
- * the client to somehow see that quotas have been turned off in which
403
- * we can't allow that to get back until the quotaoff hits the disk.
404
- * So how would that happen?  Also, do we need different routines for
405
- * quotaoff start and quotaoff end?  I suspect the answer is yes but
406
- * to be sure, I need to look at the recovery code and see how quota off
407
- * recovery is handled (do we roll forward or back or do something else).
408
- * If we roll forwards or backwards, then we need two separate routines,
409
- * one that does nothing and one that stamps in the lsn that matters
410
- * (truly makes the quotaoff irrevocable).  If we do something else,
411
- * then maybe we don't need two.
412
- */
413288 STATIC void
414
-xfs_qm_qoff_logitem_committing(
415
-	struct xfs_log_item	*lip,
416
-	xfs_lsn_t		commit_lsn)
289
+xfs_qm_qoff_logitem_release(
290
+	struct xfs_log_item	*lip)
417291 {
292
+	struct xfs_qoff_logitem	*qoff = QOFF_ITEM(lip);
293
+
294
+	if (test_bit(XFS_LI_ABORTED, &lip->li_flags)) {
295
+		if (qoff->qql_start_lip)
296
+			xfs_qm_qoff_logitem_relse(qoff->qql_start_lip);
297
+		xfs_qm_qoff_logitem_relse(qoff);
298
+	}
418299 }
419300 
420301 static const struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
421302 	.iop_size	= xfs_qm_qoff_logitem_size,
422303 	.iop_format	= xfs_qm_qoff_logitem_format,
423
-	.iop_pin	= xfs_qm_qoff_logitem_pin,
424
-	.iop_unpin	= xfs_qm_qoff_logitem_unpin,
425
-	.iop_unlock	= xfs_qm_qoff_logitem_unlock,
426304 	.iop_committed	= xfs_qm_qoffend_logitem_committed,
427305 	.iop_push	= xfs_qm_qoff_logitem_push,
428
-	.iop_committing = xfs_qm_qoff_logitem_committing
306
+	.iop_release	= xfs_qm_qoff_logitem_release,
429307 };
430308 
431
-/*
432
- * This is the ops vector shared by all quotaoff-start log items.
433
- */
434309 static const struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
435310 	.iop_size	= xfs_qm_qoff_logitem_size,
436311 	.iop_format	= xfs_qm_qoff_logitem_format,
437
-	.iop_pin	= xfs_qm_qoff_logitem_pin,
438
-	.iop_unpin	= xfs_qm_qoff_logitem_unpin,
439
-	.iop_unlock	= xfs_qm_qoff_logitem_unlock,
440
-	.iop_committed	= xfs_qm_qoff_logitem_committed,
441312 	.iop_push	= xfs_qm_qoff_logitem_push,
442
-	.iop_committing = xfs_qm_qoff_logitem_committing
313
+	.iop_release	= xfs_qm_qoff_logitem_release,
443314 };
315
+
316
+/*
317
+ * Delete the quotaoff intent from the AIL and free it. On success,
318
+ * this should only be called for the start item. It can be used for
319
+ * either on shutdown or abort.
320
+ */
321
+void
322
+xfs_qm_qoff_logitem_relse(
323
+	struct xfs_qoff_logitem	*qoff)
324
+{
325
+	struct xfs_log_item	*lip = &qoff->qql_item;
326
+
327
+	ASSERT(test_bit(XFS_LI_IN_AIL, &lip->li_flags) ||
328
+	       test_bit(XFS_LI_ABORTED, &lip->li_flags) ||
329
+	       XFS_FORCED_SHUTDOWN(lip->li_mountp));
330
+	xfs_trans_ail_delete(lip, 0);
331
+	kmem_free(lip->li_lv_shadow);
332
+	kmem_free(qoff);
333
+}
444334 
445335 /*
446336  * Allocate and initialize an quotaoff item of the correct quota type(s).
....@@ -453,7 +343,7 @@
453343 {
454344 	struct xfs_qoff_logitem	*qf;
455345 
456
-	qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP);
346
+	qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), 0);
457347 
458348 	xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
459349 			&xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);