blob: 9c5d58d24e5455aa15eae9f64006f491670f6af3 [file] [log] [blame]
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"
Nathan Scotta844f452005-11-02 14:38:42 +110020#include "xfs_bit.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include "xfs_log.h"
Nathan Scotta844f452005-11-02 14:38:42 +110022#include "xfs_inum.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include "xfs_trans.h"
24#include "xfs_sb.h"
25#include "xfs_ag.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include "xfs_alloc.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include "xfs_quota.h"
28#include "xfs_mount.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include "xfs_bmap_btree.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "xfs_inode.h"
31#include "xfs_bmap.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#include "xfs_rtalloc.h"
33#include "xfs_error.h"
34#include "xfs_itable.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#include "xfs_attr.h"
36#include "xfs_buf_item.h"
37#include "xfs_trans_priv.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070038#include "xfs_qm.h"
39
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100040static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip)
41{
42 return container_of(lip, struct xfs_dq_logitem, qli_item);
43}
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045/*
46 * returns the number of iovecs needed to log the given dquot item.
47 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070048STATIC uint
49xfs_qm_dquot_logitem_size(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100050 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -070051{
52 /*
53 * we need only two iovecs, one for the format, one for the real thing
54 */
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100055 return 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -070056}
57
58/*
59 * fills in the vector of log iovecs for the given dquot log item.
60 */
61STATIC void
62xfs_qm_dquot_logitem_format(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100063 struct xfs_log_item *lip,
64 struct xfs_log_iovec *logvec)
Linus Torvalds1da177e2005-04-16 15:20:36 -070065{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100066 struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip);
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +100068 logvec->i_addr = &qlip->qli_format;
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 logvec->i_len = sizeof(xfs_dq_logformat_t);
Christoph Hellwig4139b3b2010-01-19 09:56:45 +000070 logvec->i_type = XLOG_REG_TYPE_QFORMAT;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 logvec++;
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +100072 logvec->i_addr = &qlip->qli_dquot->q_core;
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 logvec->i_len = sizeof(xfs_disk_dquot_t);
Christoph Hellwig4139b3b2010-01-19 09:56:45 +000074 logvec->i_type = XLOG_REG_TYPE_DQUOT;
Linus Torvalds1da177e2005-04-16 15:20:36 -070075
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100076 qlip->qli_format.qlf_size = 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -070077
78}
79
80/*
81 * Increment the pin count of the given dquot.
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 */
83STATIC void
84xfs_qm_dquot_logitem_pin(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100085 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -070086{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +100087 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
Linus Torvalds1da177e2005-04-16 15:20:36 -070089 ASSERT(XFS_DQ_IS_LOCKED(dqp));
Peter Leckied1de8022008-10-30 17:05:18 +110090 atomic_inc(&dqp->q_pincount);
Linus Torvalds1da177e2005-04-16 15:20:36 -070091}
92
93/*
94 * Decrement the pin count of the given dquot, and wake up
95 * anyone in xfs_dqwait_unpin() if the count goes to 0. The
Peter Leckiebc3048e2008-10-30 17:05:04 +110096 * dquot must have been previously pinned with a call to
97 * xfs_qm_dquot_logitem_pin().
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070099STATIC void
100xfs_qm_dquot_logitem_unpin(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000101 struct xfs_log_item *lip,
Christoph Hellwig9412e312010-06-23 18:11:15 +1000102 int remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000104 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105
Peter Leckiebc3048e2008-10-30 17:05:04 +1100106 ASSERT(atomic_read(&dqp->q_pincount) > 0);
107 if (atomic_dec_and_test(&dqp->q_pincount))
108 wake_up(&dqp->q_pinwait);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109}
110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111STATIC xfs_lsn_t
112xfs_qm_dquot_logitem_committed(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000113 struct xfs_log_item *lip,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 xfs_lsn_t lsn)
115{
116 /*
117 * We always re-log the entire dquot when it becomes dirty,
118 * so, the latest copy _is_ the only one that matters.
119 */
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000120 return lsn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121}
122
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123/*
124 * This is called to wait for the given dquot to be unpinned.
125 * Most of these pin/unpin routines are plagiarized from inode code.
126 */
127void
128xfs_qm_dqunpin_wait(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000129 struct xfs_dquot *dqp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 ASSERT(XFS_DQ_IS_LOCKED(dqp));
Peter Leckiebc3048e2008-10-30 17:05:04 +1100132 if (atomic_read(&dqp->q_pincount) == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
135 /*
136 * Give the log a push so we don't wait here too long.
137 */
Christoph Hellwiga14a3482010-01-19 09:56:46 +0000138 xfs_log_force(dqp->q_mount, 0);
Peter Leckiebc3048e2008-10-30 17:05:04 +1100139 wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140}
141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142STATIC uint
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000143xfs_qm_dquot_logitem_push(
144 struct xfs_log_item *lip,
145 struct list_head *buffer_list)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000147 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000148 struct xfs_buf *bp = NULL;
149 uint rval = XFS_ITEM_SUCCESS;
150 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151
Peter Leckiebc3048e2008-10-30 17:05:04 +1100152 if (atomic_read(&dqp->q_pincount) > 0)
Dave Chinnerd808f612010-02-02 10:13:42 +1100153 return XFS_ITEM_PINNED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154
Christoph Hellwig800b4842011-12-06 21:58:14 +0000155 if (!xfs_dqlock_nowait(dqp))
Dave Chinnerd808f612010-02-02 10:13:42 +1100156 return XFS_ITEM_LOCKED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157
Christoph Hellwigfe7257f2012-04-23 15:58:37 +1000158 /*
159 * Re-check the pincount now that we stabilized the value by
160 * taking the quota lock.
161 */
162 if (atomic_read(&dqp->q_pincount) > 0) {
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000163 rval = XFS_ITEM_PINNED;
164 goto out_unlock;
Christoph Hellwigfe7257f2012-04-23 15:58:37 +1000165 }
166
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000167 /*
168 * Someone else is already flushing the dquot. Nothing we can do
169 * here but wait for the flush to finish and remove the item from
170 * the AIL.
171 */
David Chinnere1f49cf2008-08-13 16:41:43 +1000172 if (!xfs_dqflock_nowait(dqp)) {
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000173 rval = XFS_ITEM_FLUSHING;
174 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 }
176
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000177 spin_unlock(&lip->li_ailp->xa_lock);
178
179 error = xfs_qm_dqflush(dqp, &bp);
180 if (error) {
181 xfs_warn(dqp->q_mount, "%s: push error %d on dqp %p",
182 __func__, error, dqp);
183 } else {
184 if (!xfs_buf_delwri_queue(bp, buffer_list))
185 rval = XFS_ITEM_FLUSHING;
186 xfs_buf_relse(bp);
187 }
188
189 spin_lock(&lip->li_ailp->xa_lock);
190out_unlock:
191 xfs_dqunlock(dqp);
192 return rval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193}
194
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195/*
196 * Unlock the dquot associated with the log item.
197 * Clear the fields of the dquot and dquot log item that
198 * are specific to the current transaction. If the
199 * hold flags is set, do not unlock the dquot.
200 */
201STATIC void
202xfs_qm_dquot_logitem_unlock(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000203 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000205 struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207 ASSERT(XFS_DQ_IS_LOCKED(dqp));
208
209 /*
210 * Clear the transaction pointer in the dquot
211 */
212 dqp->q_transp = NULL;
213
214 /*
215 * dquots are never 'held' from getting unlocked at the end of
216 * a transaction. Their locking and unlocking is hidden inside the
217 * transaction layer, within trans_commit. Hence, no LI_HOLD flag
218 * for the logitem.
219 */
220 xfs_dqunlock(dqp);
221}
222
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700224 * this needs to stamp an lsn into the dquot, I think.
225 * rpc's that look at user dquot's would then have to
226 * push on the dependency recorded in the dquot
227 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228STATIC void
229xfs_qm_dquot_logitem_committing(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000230 struct xfs_log_item *lip,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700231 xfs_lsn_t lsn)
232{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233}
234
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235/*
236 * This is the ops vector for dquots
237 */
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000238static const struct xfs_item_ops xfs_dquot_item_ops = {
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000239 .iop_size = xfs_qm_dquot_logitem_size,
240 .iop_format = xfs_qm_dquot_logitem_format,
241 .iop_pin = xfs_qm_dquot_logitem_pin,
242 .iop_unpin = xfs_qm_dquot_logitem_unpin,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000243 .iop_unlock = xfs_qm_dquot_logitem_unlock,
244 .iop_committed = xfs_qm_dquot_logitem_committed,
245 .iop_push = xfs_qm_dquot_logitem_push,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000246 .iop_committing = xfs_qm_dquot_logitem_committing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247};
248
249/*
250 * Initialize the dquot log item for a newly allocated dquot.
251 * The dquot isn't locked at this point, but it isn't on any of the lists
252 * either, so we don't care.
253 */
254void
255xfs_qm_dquot_logitem_init(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000256 struct xfs_dquot *dqp)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000258 struct xfs_dq_logitem *lp = &dqp->q_logitem;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259
Dave Chinner43f5efc2010-03-23 10:10:00 +1100260 xfs_log_item_init(dqp->q_mount, &lp->qli_item, XFS_LI_DQUOT,
261 &xfs_dquot_item_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262 lp->qli_dquot = dqp;
263 lp->qli_format.qlf_type = XFS_LI_DQUOT;
Christoph Hellwig1149d962005-11-02 15:01:12 +1100264 lp->qli_format.qlf_id = be32_to_cpu(dqp->q_core.d_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 lp->qli_format.qlf_blkno = dqp->q_blkno;
266 lp->qli_format.qlf_len = 1;
267 /*
268 * This is just the offset of this dquot within its buffer
269 * (which is currently 1 FSB and probably won't change).
270 * Hence 32 bits for this offset should be just fine.
271 * Alternatively, we can store (bufoffset / sizeof(xfs_dqblk_t))
272 * here, and recompute it at recovery time.
273 */
274 lp->qli_format.qlf_boffset = (__uint32_t)dqp->q_bufoffset;
275}
276
277/*------------------ QUOTAOFF LOG ITEMS -------------------*/
278
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000279static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip)
280{
281 return container_of(lip, struct xfs_qoff_logitem, qql_item);
282}
283
284
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285/*
286 * This returns the number of iovecs needed to log the given quotaoff item.
287 * We only need 1 iovec for an quotaoff item. It just logs the
288 * quotaoff_log_format structure.
289 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290STATIC uint
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000291xfs_qm_qoff_logitem_size(
292 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000294 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295}
296
297/*
298 * This is called to fill in the vector of log iovecs for the
299 * given quotaoff log item. We use only 1 iovec, and we point that
300 * at the quotaoff_log_format structure embedded in the quotaoff item.
301 * It is at this point that we assert that all of the extent
302 * slots in the quotaoff item have been filled.
303 */
304STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000305xfs_qm_qoff_logitem_format(
306 struct xfs_log_item *lip,
307 struct xfs_log_iovec *log_vector)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000309 struct xfs_qoff_logitem *qflip = QOFF_ITEM(lip);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000311 ASSERT(qflip->qql_format.qf_type == XFS_LI_QUOTAOFF);
312
Christoph Hellwig4e0d5f92010-06-23 18:11:15 +1000313 log_vector->i_addr = &qflip->qql_format;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 log_vector->i_len = sizeof(xfs_qoff_logitem_t);
Christoph Hellwig4139b3b2010-01-19 09:56:45 +0000315 log_vector->i_type = XLOG_REG_TYPE_QUOTAOFF;
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000316 qflip->qql_format.qf_size = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317}
318
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319/*
320 * Pinning has no meaning for an quotaoff item, so just return.
321 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000323xfs_qm_qoff_logitem_pin(
324 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326}
327
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328/*
329 * Since pinning has no meaning for an quotaoff item, unpinning does
330 * not either.
331 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000333xfs_qm_qoff_logitem_unpin(
334 struct xfs_log_item *lip,
335 int remove)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700337}
338
339/*
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000340 * There isn't much you can do to push a quotaoff item. It is simply
341 * stuck waiting for the log to be flushed to disk.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343STATIC uint
Christoph Hellwig43ff2122012-04-23 15:58:39 +1000344xfs_qm_qoff_logitem_push(
345 struct xfs_log_item *lip,
346 struct list_head *buffer_list)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347{
348 return XFS_ITEM_LOCKED;
349}
350
351/*
352 * Quotaoff items have no locking or pushing, so return failure
353 * so that the caller doesn't bother with us.
354 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000356xfs_qm_qoff_logitem_unlock(
357 struct xfs_log_item *lip)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359}
360
361/*
362 * The quotaoff-start-item is logged only once and cannot be moved in the log,
363 * so simply return the lsn at which it's been logged.
364 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700365STATIC xfs_lsn_t
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000366xfs_qm_qoff_logitem_committed(
367 struct xfs_log_item *lip,
368 xfs_lsn_t lsn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000370 return lsn;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371}
372
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373STATIC xfs_lsn_t
374xfs_qm_qoffend_logitem_committed(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000375 struct xfs_log_item *lip,
376 xfs_lsn_t lsn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000378 struct xfs_qoff_logitem *qfe = QOFF_ITEM(lip);
379 struct xfs_qoff_logitem *qfs = qfe->qql_start_lip;
380 struct xfs_ail *ailp = qfs->qql_item.li_ailp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 /*
383 * Delete the qoff-start logitem from the AIL.
David Chinner783a2f62008-10-30 17:39:58 +1100384 * xfs_trans_ail_delete() drops the AIL lock.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 */
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000386 spin_lock(&ailp->xa_lock);
David Chinner783a2f62008-10-30 17:39:58 +1100387 xfs_trans_ail_delete(ailp, (xfs_log_item_t *)qfs);
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000388
Denys Vlasenkof0e2d932008-05-19 16:31:57 +1000389 kmem_free(qfs);
390 kmem_free(qfe);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 return (xfs_lsn_t)-1;
392}
393
394/*
395 * XXX rcc - don't know quite what to do with this. I think we can
396 * just ignore it. The only time that isn't the case is if we allow
397 * the client to somehow see that quotas have been turned off in which
398 * we can't allow that to get back until the quotaoff hits the disk.
399 * So how would that happen? Also, do we need different routines for
400 * quotaoff start and quotaoff end? I suspect the answer is yes but
401 * to be sure, I need to look at the recovery code and see how quota off
402 * recovery is handled (do we roll forward or back or do something else).
403 * If we roll forwards or backwards, then we need two separate routines,
404 * one that does nothing and one that stamps in the lsn that matters
405 * (truly makes the quotaoff irrevocable). If we do something else,
406 * then maybe we don't need two.
407 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408STATIC void
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000409xfs_qm_qoff_logitem_committing(
410 struct xfs_log_item *lip,
411 xfs_lsn_t commit_lsn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413}
414
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000415static const struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000416 .iop_size = xfs_qm_qoff_logitem_size,
417 .iop_format = xfs_qm_qoff_logitem_format,
418 .iop_pin = xfs_qm_qoff_logitem_pin,
419 .iop_unpin = xfs_qm_qoff_logitem_unpin,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000420 .iop_unlock = xfs_qm_qoff_logitem_unlock,
421 .iop_committed = xfs_qm_qoffend_logitem_committed,
422 .iop_push = xfs_qm_qoff_logitem_push,
423 .iop_committing = xfs_qm_qoff_logitem_committing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424};
425
426/*
427 * This is the ops vector shared by all quotaoff-start log items.
428 */
Christoph Hellwig272e42b2011-10-28 09:54:24 +0000429static const struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000430 .iop_size = xfs_qm_qoff_logitem_size,
431 .iop_format = xfs_qm_qoff_logitem_format,
432 .iop_pin = xfs_qm_qoff_logitem_pin,
433 .iop_unpin = xfs_qm_qoff_logitem_unpin,
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000434 .iop_unlock = xfs_qm_qoff_logitem_unlock,
435 .iop_committed = xfs_qm_qoff_logitem_committed,
436 .iop_push = xfs_qm_qoff_logitem_push,
437 .iop_committing = xfs_qm_qoff_logitem_committing
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438};
439
440/*
441 * Allocate and initialize an quotaoff item of the correct quota type(s).
442 */
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000443struct xfs_qoff_logitem *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444xfs_qm_qoff_logitem_init(
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000445 struct xfs_mount *mp,
446 struct xfs_qoff_logitem *start,
447 uint flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448{
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000449 struct xfs_qoff_logitem *qf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000451 qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452
Dave Chinner43f5efc2010-03-23 10:10:00 +1100453 xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ?
454 &xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 qf->qql_item.li_mountp = mp;
456 qf->qql_format.qf_type = XFS_LI_QUOTAOFF;
457 qf->qql_format.qf_flags = flags;
458 qf->qql_start_lip = start;
Christoph Hellwig7bfa31d2010-06-23 18:11:15 +1000459 return qf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460}