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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott4ce31212005-11-02 14:59:41 +11002 * Copyright (c) 2000-2003 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott4ce31212005-11-02 14:59:41 +11005 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
Linus Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott4ce31212005-11-02 14:59:41 +11009 * 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.
Linus Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott4ce31212005-11-02 14:59:41 +110014 * 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include "xfs.h"
19#include "xfs_fs.h"
Dave Chinner6ca1c902013-08-12 20:49:26 +100020#include "xfs_format.h"
Dave Chinner239880e2013-10-23 10:50:10 +110021#include "xfs_log_format.h"
22#include "xfs_trans_resv.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include "xfs_mount.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include "xfs_inode.h"
Dave Chinnera4fbe6a2013-10-23 10:51:50 +110025#include "xfs_quota.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include "xfs_error.h"
Dave Chinner239880e2013-10-23 10:50:10 +110027#include "xfs_trans.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include "xfs_buf_item.h"
29#include "xfs_trans_priv.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "xfs_qm.h"
Dave Chinner239880e2013-10-23 10:50:10 +110031#include "xfs_log.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070032
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100033static 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070038/*
39 * returns the number of iovecs needed to log the given dquot item.
40 */
Dave Chinner166d1362013-08-12 20:50:04 +100041STATIC void
Linus Torvalds1da177e2005-04-16 15:20:36 -070042xfs_qm_dquot_logitem_size(
Dave Chinner166d1362013-08-12 20:50:04 +100043 struct xfs_log_item *lip,
44 int *nvecs,
45 int *nbytes)
Linus Torvalds1da177e2005-04-16 15:20:36 -070046{
Dave Chinner166d1362013-08-12 20:50:04 +100047 *nvecs += 2;
48 *nbytes += sizeof(struct xfs_dq_logformat) +
49 sizeof(struct xfs_disk_dquot);
Linus Torvalds1da177e2005-04-16 15:20:36 -070050}
51
52/*
53 * fills in the vector of log iovecs for the given dquot log item.
54 */
55STATIC void
56xfs_qm_dquot_logitem_format(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100057 struct xfs_log_item *lip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110058 struct xfs_log_vec *lv)
Linus Torvalds1da177e2005-04-16 15:20:36 -070059{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100060 struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110061 struct xfs_log_iovec *vecp = NULL;
Christoph Hellwigce8e9622013-12-13 11:34:07 +110062 struct xfs_dq_logformat *qlf;
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
Christoph Hellwigce8e9622013-12-13 11:34:07 +110064 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));
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110072
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110073 xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_DQUOT,
74 &qlip->qli_dquot->q_core,
75 sizeof(struct xfs_disk_dquot));
Linus Torvalds1da177e2005-04-16 15:20:36 -070076}
77
78/*
79 * Increment the pin count of the given dquot.
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 */
81STATIC void
82xfs_qm_dquot_logitem_pin(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100083 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -070084{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100085 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Linus Torvalds1da177e2005-04-16 15:20:36 -070086
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 ASSERT(XFS_DQ_IS_LOCKED(dqp));
Peter Leckied1de8022008-10-30 17:05:18 +110088 atomic_inc(&dqp->q_pincount);
Linus Torvalds1da177e2005-04-16 15:20:36 -070089}
90
91/*
92 * Decrement the pin count of the given dquot, and wake up
93 * anyone in xfs_dqwait_unpin() if the count goes to 0. The
Peter Leckiebc3048e2008-10-30 17:05:04 +110094 * dquot must have been previously pinned with a call to
95 * xfs_qm_dquot_logitem_pin().
Linus Torvalds1da177e2005-04-16 15:20:36 -070096 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070097STATIC void
98xfs_qm_dquot_logitem_unpin(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100099 struct xfs_log_item *lip,
Christoph Hellwig9412e312010-06-23 18:11:15 +1000100 int remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000102 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103
Peter Leckiebc3048e2008-10-30 17:05:04 +1100104 ASSERT(atomic_read(&dqp->q_pincount) > 0);
105 if (atomic_dec_and_test(&dqp->q_pincount))
106 wake_up(&dqp->q_pinwait);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107}
108
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109STATIC xfs_lsn_t
110xfs_qm_dquot_logitem_committed(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000111 struct xfs_log_item *lip,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 xfs_lsn_t lsn)
113{
114 /*
115 * We always re-log the entire dquot when it becomes dirty,
116 * so, the latest copy _is_ the only one that matters.
117 */
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000118 return lsn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119}
120
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121/*
122 * This is called to wait for the given dquot to be unpinned.
123 * Most of these pin/unpin routines are plagiarized from inode code.
124 */
125void
126xfs_qm_dqunpin_wait(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000127 struct xfs_dquot *dqp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129 ASSERT(XFS_DQ_IS_LOCKED(dqp));
Peter Leckiebc3048e2008-10-30 17:05:04 +1100130 if (atomic_read(&dqp->q_pincount) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132
133 /*
134 * Give the log a push so we don't wait here too long.
135 */
Christoph Hellwiga14a3482010-01-19 09:56:46 +0000136 xfs_log_force(dqp->q_mount, 0);
Peter Leckiebc3048e2008-10-30 17:05:04 +1100137 wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138}
139
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140STATIC uint
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000141xfs_qm_dquot_logitem_push(
142 struct xfs_log_item *lip,
Dave Chinnera30b0362013-09-02 20:49:36 +1000143 struct list_head *buffer_list) __releases(&lip->li_ailp->xa_lock)
144 __acquires(&lip->li_ailp->xa_lock)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000146 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000147 struct xfs_buf *bp = NULL;
148 uint rval = XFS_ITEM_SUCCESS;
149 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150
Peter Leckiebc3048e2008-10-30 17:05:04 +1100151 if (atomic_read(&dqp->q_pincount) > 0)
Dave Chinnerd808f612010-02-02 10:13:42 +1100152 return XFS_ITEM_PINNED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153
Christoph Hellwig800b4842011-12-06 21:58:14 +0000154 if (!xfs_dqlock_nowait(dqp))
Dave Chinnerd808f612010-02-02 10:13:42 +1100155 return XFS_ITEM_LOCKED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156
Christoph Hellwigfe7257f2012-04-23 15:58:37 +1000157 /*
158 * Re-check the pincount now that we stabilized the value by
159 * taking the quota lock.
160 */
161 if (atomic_read(&dqp->q_pincount) > 0) {
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000162 rval = XFS_ITEM_PINNED;
163 goto out_unlock;
Christoph Hellwigfe7257f2012-04-23 15:58:37 +1000164 }
165
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000166 /*
167 * Someone else is already flushing the dquot. Nothing we can do
168 * here but wait for the flush to finish and remove the item from
169 * the AIL.
170 */
David Chinnere1f49cf2008-08-13 16:41:43 +1000171 if (!xfs_dqflock_nowait(dqp)) {
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000172 rval = XFS_ITEM_FLUSHING;
173 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 }
175
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000176 spin_unlock(&lip->li_ailp->xa_lock);
177
178 error = xfs_qm_dqflush(dqp, &bp);
179 if (error) {
180 xfs_warn(dqp->q_mount, "%s: push error %d on dqp %p",
181 __func__, error, dqp);
182 } else {
183 if (!xfs_buf_delwri_queue(bp, buffer_list))
184 rval = XFS_ITEM_FLUSHING;
185 xfs_buf_relse(bp);
186 }
187
188 spin_lock(&lip->li_ailp->xa_lock);
189out_unlock:
190 xfs_dqunlock(dqp);
191 return rval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192}
193
Linus Torvalds1da177e2005-04-16 15:20:36 -0700194/*
195 * Unlock the dquot associated with the log item.
196 * Clear the fields of the dquot and dquot log item that
197 * are specific to the current transaction. If the
198 * hold flags is set, do not unlock the dquot.
199 */
200STATIC void
201xfs_qm_dquot_logitem_unlock(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000202 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000204 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 ASSERT(XFS_DQ_IS_LOCKED(dqp));
207
208 /*
209 * Clear the transaction pointer in the dquot
210 */
211 dqp->q_transp = NULL;
212
213 /*
214 * dquots are never 'held' from getting unlocked at the end of
215 * a transaction. Their locking and unlocking is hidden inside the
216 * transaction layer, within trans_commit. Hence, no LI_HOLD flag
217 * for the logitem.
218 */
219 xfs_dqunlock(dqp);
220}
221
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 * this needs to stamp an lsn into the dquot, I think.
224 * rpc's that look at user dquot's would then have to
225 * push on the dependency recorded in the dquot
226 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227STATIC void
228xfs_qm_dquot_logitem_committing(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000229 struct xfs_log_item *lip,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700230 xfs_lsn_t lsn)
231{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232}
233
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234/*
235 * This is the ops vector for dquots
236 */
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000237static const struct xfs_item_ops xfs_dquot_item_ops = {
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000238 .iop_size = xfs_qm_dquot_logitem_size,
239 .iop_format = xfs_qm_dquot_logitem_format,
240 .iop_pin = xfs_qm_dquot_logitem_pin,
241 .iop_unpin = xfs_qm_dquot_logitem_unpin,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000242 .iop_unlock = xfs_qm_dquot_logitem_unlock,
243 .iop_committed = xfs_qm_dquot_logitem_committed,
244 .iop_push = xfs_qm_dquot_logitem_push,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000245 .iop_committing = xfs_qm_dquot_logitem_committing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246};
247
248/*
249 * Initialize the dquot log item for a newly allocated dquot.
250 * The dquot isn't locked at this point, but it isn't on any of the lists
251 * either, so we don't care.
252 */
253void
254xfs_qm_dquot_logitem_init(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000255 struct xfs_dquot *dqp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000257 struct xfs_dq_logitem *lp = &dqp->q_logitem;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258
Dave Chinner43f5efc2010-03-23 10:10:00 +1100259 xfs_log_item_init(dqp->q_mount, &lp->qli_item, XFS_LI_DQUOT,
260 &xfs_dquot_item_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 lp->qli_dquot = dqp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262}
263
264/*------------------ QUOTAOFF LOG ITEMS -------------------*/
265
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000266static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip)
267{
268 return container_of(lip, struct xfs_qoff_logitem, qql_item);
269}
270
271
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272/*
273 * This returns the number of iovecs needed to log the given quotaoff item.
274 * We only need 1 iovec for an quotaoff item. It just logs the
275 * quotaoff_log_format structure.
276 */
Dave Chinner166d1362013-08-12 20:50:04 +1000277STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000278xfs_qm_qoff_logitem_size(
Dave Chinner166d1362013-08-12 20:50:04 +1000279 struct xfs_log_item *lip,
280 int *nvecs,
281 int *nbytes)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282{
Dave Chinner166d1362013-08-12 20:50:04 +1000283 *nvecs += 1;
284 *nbytes += sizeof(struct xfs_qoff_logitem);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285}
286
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000288xfs_qm_qoff_logitem_format(
289 struct xfs_log_item *lip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100290 struct xfs_log_vec *lv)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000292 struct xfs_qoff_logitem *qflip = QOFF_ITEM(lip);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +1100293 struct xfs_log_iovec *vecp = NULL;
Christoph Hellwigffda4e82013-12-13 11:34:08 +1100294 struct xfs_qoff_logformat *qlf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Christoph Hellwigffda4e82013-12-13 11:34:08 +1100296 qlf = xlog_prepare_iovec(lv, &vecp, XLOG_REG_TYPE_QUOTAOFF);
297 qlf->qf_type = XFS_LI_QUOTAOFF;
298 qlf->qf_size = 1;
299 qlf->qf_flags = qflip->qql_flags;
300 xlog_finish_iovec(lv, vecp, sizeof(struct xfs_qoff_logitem));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301}
302
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303/*
304 * Pinning has no meaning for an quotaoff item, so just return.
305 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700306STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000307xfs_qm_qoff_logitem_pin(
308 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310}
311
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312/*
313 * Since pinning has no meaning for an quotaoff item, unpinning does
314 * not either.
315 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000317xfs_qm_qoff_logitem_unpin(
318 struct xfs_log_item *lip,
319 int remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321}
322
323/*
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000324 * There isn't much you can do to push a quotaoff item. It is simply
325 * stuck waiting for the log to be flushed to disk.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327STATIC uint
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000328xfs_qm_qoff_logitem_push(
329 struct xfs_log_item *lip,
330 struct list_head *buffer_list)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700331{
332 return XFS_ITEM_LOCKED;
333}
334
335/*
336 * Quotaoff items have no locking or pushing, so return failure
337 * so that the caller doesn't bother with us.
338 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000340xfs_qm_qoff_logitem_unlock(
341 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343}
344
345/*
346 * The quotaoff-start-item is logged only once and cannot be moved in the log,
347 * so simply return the lsn at which it's been logged.
348 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349STATIC xfs_lsn_t
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000350xfs_qm_qoff_logitem_committed(
351 struct xfs_log_item *lip,
352 xfs_lsn_t lsn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000354 return lsn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355}
356
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357STATIC xfs_lsn_t
358xfs_qm_qoffend_logitem_committed(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000359 struct xfs_log_item *lip,
360 xfs_lsn_t lsn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000362 struct xfs_qoff_logitem *qfe = QOFF_ITEM(lip);
363 struct xfs_qoff_logitem *qfs = qfe->qql_start_lip;
364 struct xfs_ail *ailp = qfs->qql_item.li_ailp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 /*
367 * Delete the qoff-start logitem from the AIL.
David Chinner783a2f62008-10-30 17:39:58 +1100368 * xfs_trans_ail_delete() drops the AIL lock.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 */
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000370 spin_lock(&ailp->xa_lock);
Dave Chinner04913fd2012-04-23 15:58:41 +1000371 xfs_trans_ail_delete(ailp, &qfs->qql_item, SHUTDOWN_LOG_IO_ERROR);
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000372
Denys Vlasenkof0e2d932008-05-19 16:31:57 +1000373 kmem_free(qfs);
374 kmem_free(qfe);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375 return (xfs_lsn_t)-1;
376}
377
378/*
379 * XXX rcc - don't know quite what to do with this. I think we can
380 * just ignore it. The only time that isn't the case is if we allow
381 * the client to somehow see that quotas have been turned off in which
382 * we can't allow that to get back until the quotaoff hits the disk.
383 * So how would that happen? Also, do we need different routines for
384 * quotaoff start and quotaoff end? I suspect the answer is yes but
385 * to be sure, I need to look at the recovery code and see how quota off
386 * recovery is handled (do we roll forward or back or do something else).
387 * If we roll forwards or backwards, then we need two separate routines,
388 * one that does nothing and one that stamps in the lsn that matters
389 * (truly makes the quotaoff irrevocable). If we do something else,
390 * then maybe we don't need two.
391 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000393xfs_qm_qoff_logitem_committing(
394 struct xfs_log_item *lip,
395 xfs_lsn_t commit_lsn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397}
398
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000399static const struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000400 .iop_size = xfs_qm_qoff_logitem_size,
401 .iop_format = xfs_qm_qoff_logitem_format,
402 .iop_pin = xfs_qm_qoff_logitem_pin,
403 .iop_unpin = xfs_qm_qoff_logitem_unpin,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000404 .iop_unlock = xfs_qm_qoff_logitem_unlock,
405 .iop_committed = xfs_qm_qoffend_logitem_committed,
406 .iop_push = xfs_qm_qoff_logitem_push,
407 .iop_committing = xfs_qm_qoff_logitem_committing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408};
409
410/*
411 * This is the ops vector shared by all quotaoff-start log items.
412 */
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000413static const struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000414 .iop_size = xfs_qm_qoff_logitem_size,
415 .iop_format = xfs_qm_qoff_logitem_format,
416 .iop_pin = xfs_qm_qoff_logitem_pin,
417 .iop_unpin = xfs_qm_qoff_logitem_unpin,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000418 .iop_unlock = xfs_qm_qoff_logitem_unlock,
419 .iop_committed = xfs_qm_qoff_logitem_committed,
420 .iop_push = xfs_qm_qoff_logitem_push,
421 .iop_committing = xfs_qm_qoff_logitem_committing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700422};
423
424/*
425 * Allocate and initialize an quotaoff item of the correct quota type(s).
426 */
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000427struct xfs_qoff_logitem *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700428xfs_qm_qoff_logitem_init(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000429 struct xfs_mount *mp,
430 struct xfs_qoff_logitem *start,
431 uint flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000433 struct xfs_qoff_logitem *qf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000435 qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
Dave Chinner43f5efc2010-03-23 10:10:00 +1100437 xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
438 &xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 qf->qql_item.li_mountp = mp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 qf->qql_start_lip = start;
Christoph Hellwigffda4e82013-12-13 11:34:08 +1100441 qf->qql_flags = flags;
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000442 return qf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443}