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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott4ce31212005-11-02 14:59:41 +11002 * Copyright (c) 2000-2005 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 */
Randy Dunlap16f7e0f2006-01-11 12:17:46 -080018
19#include <linux/capability.h>
20
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include "xfs.h"
22#include "xfs_fs.h"
Dave Chinner70a98832013-10-23 10:36:05 +110023#include "xfs_shared.h"
Dave Chinner239880e2013-10-23 10:50:10 +110024#include "xfs_format.h"
25#include "xfs_log_format.h"
26#include "xfs_trans_resv.h"
Nathan Scotta844f452005-11-02 14:38:42 +110027#include "xfs_bit.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include "xfs_sb.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include "xfs_mount.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "xfs_inode.h"
Dave Chinner239880e2013-10-23 10:50:10 +110031#include "xfs_trans.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#include "xfs_error.h"
Dave Chinnera4fbe6a2013-10-23 10:51:50 +110033#include "xfs_quota.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include "xfs_qm.h"
Christoph Hellwig0b1b2132009-12-14 23:14:59 +000035#include "xfs_trace.h"
Dave Chinner6d8b79c2012-10-08 21:56:09 +110036#include "xfs_icache.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070037
Linus Torvalds1da177e2005-04-16 15:20:36 -070038STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint);
39STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
40 uint);
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
42/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 * Turn off quota accounting and/or enforcement for all udquots and/or
44 * gdquots. Called only at unmount time.
45 *
46 * This assumes that there are no dquots of this file system cached
47 * incore, and modifies the ondisk dquot directly. Therefore, for example,
48 * it is an error to call this twice, without purging the cache.
49 */
Christoph Hellwigfcafb712009-02-09 08:47:34 +010050int
Linus Torvalds1da177e2005-04-16 15:20:36 -070051xfs_qm_scall_quotaoff(
52 xfs_mount_t *mp,
Christoph Hellwigfcafb712009-02-09 08:47:34 +010053 uint flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -070054{
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +100055 struct xfs_quotainfo *q = mp->m_quotainfo;
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 uint dqtype;
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 int error;
58 uint inactivate_flags;
59 xfs_qoff_logitem_t *qoffstart;
Linus Torvalds1da177e2005-04-16 15:20:36 -070060
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 /*
62 * No file system can have quotas enabled on disk but not in core.
63 * Note that quota utilities (like quotaoff) _expect_
Dave Chinner24513372014-06-25 14:58:08 +100064 * errno == -EEXIST here.
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 */
66 if ((mp->m_qflags & flags) == 0)
Dave Chinner24513372014-06-25 14:58:08 +100067 return -EEXIST;
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 error = 0;
69
70 flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
71
72 /*
73 * We don't want to deal with two quotaoffs messing up each other,
74 * so we're going to serialize it. quotaoff isn't exactly a performance
75 * critical thing.
76 * If quotaoff, then we must be dealing with the root filesystem.
77 */
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +100078 ASSERT(q);
79 mutex_lock(&q->qi_quotaofflock);
Linus Torvalds1da177e2005-04-16 15:20:36 -070080
81 /*
82 * If we're just turning off quota enforcement, change mp and go.
83 */
84 if ((flags & XFS_ALL_QUOTA_ACCT) == 0) {
85 mp->m_qflags &= ~(flags);
86
Eric Sandeen3685c2a2007-10-11 17:42:32 +100087 spin_lock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -070088 mp->m_sb.sb_qflags = mp->m_qflags;
Eric Sandeen3685c2a2007-10-11 17:42:32 +100089 spin_unlock(&mp->m_sb_lock);
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +100090 mutex_unlock(&q->qi_quotaofflock);
Linus Torvalds1da177e2005-04-16 15:20:36 -070091
92 /* XXX what to do if error ? Revert back to old vals incore ? */
Dave Chinner61e63ec2015-01-22 09:10:31 +110093 return xfs_sync_sb(mp, false);
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 }
95
96 dqtype = 0;
97 inactivate_flags = 0;
98 /*
99 * If accounting is off, we must turn enforcement off, clear the
100 * quota 'CHKD' certificate to make it known that we have to
101 * do a quotacheck the next time this quota is turned on.
102 */
103 if (flags & XFS_UQUOTA_ACCT) {
104 dqtype |= XFS_QMOPT_UQUOTA;
105 flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD);
106 inactivate_flags |= XFS_UQUOTA_ACTIVE;
107 }
108 if (flags & XFS_GQUOTA_ACCT) {
109 dqtype |= XFS_QMOPT_GQUOTA;
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500110 flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 inactivate_flags |= XFS_GQUOTA_ACTIVE;
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500112 }
113 if (flags & XFS_PQUOTA_ACCT) {
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000114 dqtype |= XFS_QMOPT_PQUOTA;
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500115 flags |= (XFS_PQUOTA_CHKD | XFS_PQUOTA_ENFD);
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000116 inactivate_flags |= XFS_PQUOTA_ACTIVE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 }
118
119 /*
120 * Nothing to do? Don't complain. This happens when we're just
121 * turning off quota enforcement.
122 */
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000123 if ((mp->m_qflags & flags) == 0)
124 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125
126 /*
127 * Write the LI_QUOTAOFF log record, and do SB changes atomically,
David Chinnercb6edc22008-04-10 12:20:45 +1000128 * and synchronously. If we fail to write, we should abort the
129 * operation as it cannot be recovered safely if we crash.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 */
David Chinnercb6edc22008-04-10 12:20:45 +1000131 error = xfs_qm_log_quotaoff(mp, &qoffstart, flags);
132 if (error)
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000133 goto out_unlock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
135 /*
136 * Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
137 * to take care of the race between dqget and quotaoff. We don't take
138 * any special locks to reset these bits. All processes need to check
139 * these bits *after* taking inode lock(s) to see if the particular
140 * quota type is in the process of being turned off. If *ACTIVE, it is
141 * guaranteed that all dquot structures and all quotainode ptrs will all
142 * stay valid as long as that inode is kept locked.
143 *
144 * There is no turning back after this.
145 */
146 mp->m_qflags &= ~inactivate_flags;
147
148 /*
149 * Give back all the dquot reference(s) held by inodes.
150 * Here we go thru every single incore inode in this file system, and
151 * do a dqrele on the i_udquot/i_gdquot that it may have.
152 * Essentially, as long as somebody has an inode locked, this guarantees
153 * that quotas will not be turned off. This is handy because in a
154 * transaction once we lock the inode(s) and check for quotaon, we can
155 * depend on the quota inodes (and other things) being valid as long as
156 * we keep the lock(s).
157 */
158 xfs_qm_dqrele_all_inodes(mp, flags);
159
160 /*
161 * Next we make the changes in the quota flag in the mount struct.
162 * This isn't protected by a particular lock directly, because we
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300163 * don't want to take a mrlock every time we depend on quotas being on.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 */
Christoph Hellwigb84a3a92012-03-14 11:53:34 -0500165 mp->m_qflags &= ~flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
167 /*
168 * Go through all the dquots of this file system and purge them,
Christoph Hellwigb84a3a92012-03-14 11:53:34 -0500169 * according to what was turned off.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 */
Christoph Hellwigb84a3a92012-03-14 11:53:34 -0500171 xfs_qm_dqpurge_all(mp, dqtype);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172
173 /*
174 * Transactions that had started before ACTIVE state bit was cleared
175 * could have logged many dquots, so they'd have higher LSNs than
176 * the first QUOTAOFF log record does. If we happen to crash when
177 * the tail of the log has gone past the QUOTAOFF record, but
178 * before the last dquot modification, those dquots __will__
179 * recover, and that's not good.
180 *
181 * So, we have QUOTAOFF start and end logitems; the start
182 * logitem won't get overwritten until the end logitem appears...
183 */
David Chinnercb6edc22008-04-10 12:20:45 +1000184 error = xfs_qm_log_quotaoff_end(mp, qoffstart, flags);
185 if (error) {
186 /* We're screwed now. Shutdown is the only option. */
187 xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000188 goto out_unlock;
David Chinnercb6edc22008-04-10 12:20:45 +1000189 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700190
191 /*
Chandra Seetharamanc31ad432013-07-10 18:00:36 -0500192 * If all quotas are completely turned off, close shop.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193 */
Chandra Seetharamanc31ad432013-07-10 18:00:36 -0500194 if (mp->m_qflags == 0) {
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000195 mutex_unlock(&q->qi_quotaofflock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 xfs_qm_destroy_quotainfo(mp);
Eric Sandeend99831f2014-06-22 15:03:54 +1000197 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 }
199
200 /*
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000201 * Release our quotainode references if we don't need them anymore.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 */
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000203 if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) {
204 IRELE(q->qi_uquotaip);
205 q->qi_uquotaip = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 }
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500207 if ((dqtype & XFS_QMOPT_GQUOTA) && q->qi_gquotaip) {
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000208 IRELE(q->qi_gquotaip);
209 q->qi_gquotaip = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210 }
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500211 if ((dqtype & XFS_QMOPT_PQUOTA) && q->qi_pquotaip) {
212 IRELE(q->qi_pquotaip);
213 q->qi_pquotaip = NULL;
214 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000216out_unlock:
217 mutex_unlock(&q->qi_quotaofflock);
218 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219}
220
Christoph Hellwig5d188982010-07-20 17:51:31 +1000221STATIC int
222xfs_qm_scall_trunc_qfile(
223 struct xfs_mount *mp,
224 xfs_ino_t ino)
225{
226 struct xfs_inode *ip;
227 struct xfs_trans *tp;
228 int error;
229
230 if (ino == NULLFSINO)
231 return 0;
232
233 error = xfs_iget(mp, NULL, ino, 0, 0, &ip);
234 if (error)
235 return error;
236
237 xfs_ilock(ip, XFS_IOLOCK_EXCL);
238
239 tp = xfs_trans_alloc(mp, XFS_TRANS_TRUNCATE_FILE);
Jie Liu3d3c8b52013-08-12 20:49:59 +1000240 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000241 if (error) {
Christoph Hellwig4906e212015-06-04 13:47:56 +1000242 xfs_trans_cancel(tp);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000243 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
244 goto out_put;
245 }
246
247 xfs_ilock(ip, XFS_ILOCK_EXCL);
Christoph Hellwigddc34152011-09-19 15:00:54 +0000248 xfs_trans_ijoin(tp, ip, 0);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000249
Christoph Hellwig673e8e52011-12-18 20:00:04 +0000250 ip->i_d.di_size = 0;
Christoph Hellwig673e8e52011-12-18 20:00:04 +0000251 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
252
253 error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000254 if (error) {
Christoph Hellwig4906e212015-06-04 13:47:56 +1000255 xfs_trans_cancel(tp);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000256 goto out_unlock;
257 }
258
Christoph Hellwig673e8e52011-12-18 20:00:04 +0000259 ASSERT(ip->i_d.di_nextents == 0);
260
Dave Chinnerdcd79a12010-09-28 12:27:25 +1000261 xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
Christoph Hellwig70393312015-06-04 13:48:08 +1000262 error = xfs_trans_commit(tp);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000263
264out_unlock:
265 xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
266out_put:
267 IRELE(ip);
268 return error;
269}
270
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100271int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272xfs_qm_scall_trunc_qfiles(
273 xfs_mount_t *mp,
274 uint flags)
275{
Dave Chinner24513372014-06-25 14:58:08 +1000276 int error = -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277
Eric Sandeenf58522c2014-05-05 17:27:06 +1000278 if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0 ||
279 (flags & ~XFS_DQ_ALLTYPES)) {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500280 xfs_debug(mp, "%s: flags=%x m_qflags=%x",
Dave Chinner82211122011-03-07 10:07:35 +1100281 __func__, flags, mp->m_qflags);
Dave Chinner24513372014-06-25 14:58:08 +1000282 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 }
284
Jie Liuc61a9e32013-11-22 14:04:00 +0800285 if (flags & XFS_DQ_USER) {
Christoph Hellwig5d188982010-07-20 17:51:31 +1000286 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
Jie Liuc61a9e32013-11-22 14:04:00 +0800287 if (error)
288 return error;
289 }
290 if (flags & XFS_DQ_GROUP) {
291 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
292 if (error)
293 return error;
294 }
Chandra Seetharamand892d582013-07-19 17:36:02 -0500295 if (flags & XFS_DQ_PROJ)
Jie Liuc61a9e32013-11-22 14:04:00 +0800296 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_pquotino);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297
Jie Liuc61a9e32013-11-22 14:04:00 +0800298 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299}
300
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301/*
302 * Switch on (a given) quota enforcement for a filesystem. This takes
303 * effect immediately.
304 * (Switching on quota accounting must be done at mount time.)
305 */
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100306int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307xfs_qm_scall_quotaon(
308 xfs_mount_t *mp,
309 uint flags)
310{
311 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 uint qf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314 flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
315 /*
316 * Switching on quota accounting must be done at mount time.
317 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 flags &= ~(XFS_ALL_QUOTA_ACCT);
319
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 if (flags == 0) {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500321 xfs_debug(mp, "%s: zero flags, m_qflags=%x",
Dave Chinner82211122011-03-07 10:07:35 +1100322 __func__, mp->m_qflags);
Dave Chinner24513372014-06-25 14:58:08 +1000323 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 }
325
Linus Torvalds1da177e2005-04-16 15:20:36 -0700326 /*
327 * Can't enforce without accounting. We check the superblock
328 * qflags here instead of m_qflags because rootfs can have
329 * quota acct on ondisk without m_qflags' knowing.
330 */
Jan Karafbf64b32014-10-08 11:52:52 +0200331 if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500332 (flags & XFS_UQUOTA_ENFD)) ||
Jan Karafbf64b32014-10-08 11:52:52 +0200333 ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500334 (flags & XFS_GQUOTA_ENFD)) ||
Jan Karafbf64b32014-10-08 11:52:52 +0200335 ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500336 (flags & XFS_PQUOTA_ENFD))) {
Dave Chinner82211122011-03-07 10:07:35 +1100337 xfs_debug(mp,
Eric Sandeen08e96e12013-10-11 20:59:05 -0500338 "%s: Can't enforce without acct, flags=%x sbflags=%x",
Dave Chinner82211122011-03-07 10:07:35 +1100339 __func__, flags, mp->m_sb.sb_qflags);
Dave Chinner24513372014-06-25 14:58:08 +1000340 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 }
342 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300343 * If everything's up to-date incore, then don't waste time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 */
345 if ((mp->m_qflags & flags) == flags)
Dave Chinner24513372014-06-25 14:58:08 +1000346 return -EEXIST;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700347
348 /*
349 * Change sb_qflags on disk but not incore mp->qflags
350 * if this is the root filesystem.
351 */
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000352 spin_lock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700353 qf = mp->m_sb.sb_qflags;
354 mp->m_sb.sb_qflags = qf | flags;
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000355 spin_unlock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
357 /*
358 * There's nothing to change if it's the same.
359 */
Dave Chinner4d11a402015-01-22 09:10:26 +1100360 if ((qf & flags) == flags)
Dave Chinner24513372014-06-25 14:58:08 +1000361 return -EEXIST;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362
Dave Chinner61e63ec2015-01-22 09:10:31 +1100363 error = xfs_sync_sb(mp, false);
364 if (error)
Eric Sandeend99831f2014-06-22 15:03:54 +1000365 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 /*
367 * If we aren't trying to switch on quota enforcement, we are done.
368 */
369 if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
370 (mp->m_qflags & XFS_UQUOTA_ACCT)) ||
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000371 ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) !=
372 (mp->m_qflags & XFS_PQUOTA_ACCT)) ||
373 ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) !=
Jan Karafbf64b32014-10-08 11:52:52 +0200374 (mp->m_qflags & XFS_GQUOTA_ACCT)))
Eric Sandeend99831f2014-06-22 15:03:54 +1000375 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376
377 if (! XFS_IS_QUOTA_RUNNING(mp))
Dave Chinner24513372014-06-25 14:58:08 +1000378 return -ESRCH;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379
380 /*
381 * Switch on quota enforcement in core.
382 */
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000383 mutex_lock(&mp->m_quotainfo->qi_quotaofflock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384 mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000385 mutex_unlock(&mp->m_quotainfo->qi_quotaofflock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386
Eric Sandeend99831f2014-06-22 15:03:54 +1000387 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388}
389
Jan Kara14bf61f2014-10-09 16:03:13 +0200390#define XFS_QC_MASK \
391 (QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
Christoph Hellwigc472b432010-05-06 17:05:17 -0400392
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393/*
394 * Adjust quota limits, and start/stop timers accordingly.
395 */
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100396int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397xfs_qm_scall_setqlim(
Brian Fosterb1366452013-03-18 10:51:46 -0400398 struct xfs_mount *mp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 xfs_dqid_t id,
400 uint type,
Jan Kara14bf61f2014-10-09 16:03:13 +0200401 struct qc_dqblk *newlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402{
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000403 struct xfs_quotainfo *q = mp->m_quotainfo;
Brian Fosterb1366452013-03-18 10:51:46 -0400404 struct xfs_disk_dquot *ddq;
405 struct xfs_dquot *dqp;
406 struct xfs_trans *tp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407 int error;
408 xfs_qcnt_t hard, soft;
409
Jan Kara14bf61f2014-10-09 16:03:13 +0200410 if (newlim->d_fieldmask & ~XFS_QC_MASK)
Dave Chinner24513372014-06-25 14:58:08 +1000411 return -EINVAL;
Jan Kara14bf61f2014-10-09 16:03:13 +0200412 if ((newlim->d_fieldmask & XFS_QC_MASK) == 0)
Christoph Hellwigc472b432010-05-06 17:05:17 -0400413 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414
Dave Chinnerf6481672013-05-21 18:02:00 +1000415 /*
416 * We don't want to race with a quotaoff so take the quotaoff lock.
417 * We don't hold an inode lock, so there's nothing else to stop
418 * a quotaoff from happening.
419 */
420 mutex_lock(&q->qi_quotaofflock);
421
422 /*
423 * Get the dquot (locked) before we start, as we need to do a
424 * transaction to allocate it if it doesn't exist. Once we have the
425 * dquot, unlock it so we can start the next transaction safely. We hold
426 * a reference to the dquot, so it's safe to do this unlock/lock without
427 * it being reclaimed in the mean time.
428 */
429 error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp);
430 if (error) {
Dave Chinner24513372014-06-25 14:58:08 +1000431 ASSERT(error != -ENOENT);
Dave Chinnerf6481672013-05-21 18:02:00 +1000432 goto out_unlock;
433 }
434 xfs_dqunlock(dqp);
435
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
Jie Liu3d3c8b52013-08-12 20:49:59 +1000437 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_setqlim, 0, 0);
Jeff Liuf0f2df92013-01-28 21:26:49 +0800438 if (error) {
Christoph Hellwig4906e212015-06-04 13:47:56 +1000439 xfs_trans_cancel(tp);
Dave Chinnerf6481672013-05-21 18:02:00 +1000440 goto out_rele;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 }
442
Dave Chinnerf6481672013-05-21 18:02:00 +1000443 xfs_dqlock(dqp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444 xfs_trans_dqjoin(tp, dqp);
445 ddq = &dqp->q_core;
446
447 /*
448 * Make sure that hardlimits are >= soft limits before changing.
449 */
Jan Kara14bf61f2014-10-09 16:03:13 +0200450 hard = (newlim->d_fieldmask & QC_SPC_HARD) ?
451 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100452 be64_to_cpu(ddq->d_blk_hardlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200453 soft = (newlim->d_fieldmask & QC_SPC_SOFT) ?
454 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100455 be64_to_cpu(ddq->d_blk_softlimit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456 if (hard == 0 || hard >= soft) {
Christoph Hellwig1149d962005-11-02 15:01:12 +1100457 ddq->d_blk_hardlimit = cpu_to_be64(hard);
458 ddq->d_blk_softlimit = cpu_to_be64(soft);
Brian Fosterb1366452013-03-18 10:51:46 -0400459 xfs_dquot_set_prealloc_limits(dqp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460 if (id == 0) {
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000461 q->qi_bhardlimit = hard;
462 q->qi_bsoftlimit = soft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 }
464 } else {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500465 xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200467 hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
468 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100469 be64_to_cpu(ddq->d_rtb_hardlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200470 soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ?
471 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100472 be64_to_cpu(ddq->d_rtb_softlimit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 if (hard == 0 || hard >= soft) {
Christoph Hellwig1149d962005-11-02 15:01:12 +1100474 ddq->d_rtb_hardlimit = cpu_to_be64(hard);
475 ddq->d_rtb_softlimit = cpu_to_be64(soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700476 if (id == 0) {
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000477 q->qi_rtbhardlimit = hard;
478 q->qi_rtbsoftlimit = soft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 }
480 } else {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500481 xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482 }
483
Jan Kara14bf61f2014-10-09 16:03:13 +0200484 hard = (newlim->d_fieldmask & QC_INO_HARD) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485 (xfs_qcnt_t) newlim->d_ino_hardlimit :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100486 be64_to_cpu(ddq->d_ino_hardlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200487 soft = (newlim->d_fieldmask & QC_INO_SOFT) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 (xfs_qcnt_t) newlim->d_ino_softlimit :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100489 be64_to_cpu(ddq->d_ino_softlimit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490 if (hard == 0 || hard >= soft) {
Christoph Hellwig1149d962005-11-02 15:01:12 +1100491 ddq->d_ino_hardlimit = cpu_to_be64(hard);
492 ddq->d_ino_softlimit = cpu_to_be64(soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700493 if (id == 0) {
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000494 q->qi_ihardlimit = hard;
495 q->qi_isoftlimit = soft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700496 }
497 } else {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500498 xfs_debug(mp, "ihard %Ld < isoft %Ld", hard, soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499 }
500
Nathan Scott754002b2005-06-21 15:49:06 +1000501 /*
502 * Update warnings counter(s) if requested
503 */
Jan Kara14bf61f2014-10-09 16:03:13 +0200504 if (newlim->d_fieldmask & QC_SPC_WARNS)
505 ddq->d_bwarns = cpu_to_be16(newlim->d_spc_warns);
506 if (newlim->d_fieldmask & QC_INO_WARNS)
507 ddq->d_iwarns = cpu_to_be16(newlim->d_ino_warns);
508 if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
509 ddq->d_rtbwarns = cpu_to_be16(newlim->d_rt_spc_warns);
Nathan Scott754002b2005-06-21 15:49:06 +1000510
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 if (id == 0) {
512 /*
513 * Timelimits for the super user set the relative time
514 * the other users can be over quota for this file system.
515 * If it is zero a default is used. Ditto for the default
Nathan Scott754002b2005-06-21 15:49:06 +1000516 * soft and hard limit values (already done, above), and
517 * for warnings.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518 */
Jan Kara14bf61f2014-10-09 16:03:13 +0200519 if (newlim->d_fieldmask & QC_SPC_TIMER) {
520 q->qi_btimelimit = newlim->d_spc_timer;
521 ddq->d_btimer = cpu_to_be32(newlim->d_spc_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200523 if (newlim->d_fieldmask & QC_INO_TIMER) {
524 q->qi_itimelimit = newlim->d_ino_timer;
525 ddq->d_itimer = cpu_to_be32(newlim->d_ino_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200527 if (newlim->d_fieldmask & QC_RT_SPC_TIMER) {
528 q->qi_rtbtimelimit = newlim->d_rt_spc_timer;
529 ddq->d_rtbtimer = cpu_to_be32(newlim->d_rt_spc_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200531 if (newlim->d_fieldmask & QC_SPC_WARNS)
532 q->qi_bwarnlimit = newlim->d_spc_warns;
533 if (newlim->d_fieldmask & QC_INO_WARNS)
534 q->qi_iwarnlimit = newlim->d_ino_warns;
535 if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
536 q->qi_rtbwarnlimit = newlim->d_rt_spc_warns;
Nathan Scott754002b2005-06-21 15:49:06 +1000537 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538 /*
539 * If the user is now over quota, start the timelimit.
540 * The user will not be 'warned'.
541 * Note that we keep the timers ticking, whether enforcement
542 * is on or off. We don't really want to bother with iterating
543 * over all ondisk dquots and turning the timers on/off.
544 */
545 xfs_qm_adjust_dqtimers(mp, ddq);
546 }
547 dqp->dq_flags |= XFS_DQ_DIRTY;
548 xfs_trans_log_dquot(tp, dqp);
549
Christoph Hellwig70393312015-06-04 13:48:08 +1000550 error = xfs_trans_commit(tp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
Dave Chinnerf6481672013-05-21 18:02:00 +1000552out_rele:
553 xfs_qm_dqrele(dqp);
554out_unlock:
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000555 mutex_unlock(&q->qi_quotaofflock);
David Chinnere5720ee2008-04-10 12:21:18 +1000556 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557}
558
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559STATIC int
560xfs_qm_log_quotaoff_end(
561 xfs_mount_t *mp,
562 xfs_qoff_logitem_t *startqoff,
563 uint flags)
564{
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000565 xfs_trans_t *tp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 int error;
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000567 xfs_qoff_logitem_t *qoffi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568
569 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END);
570
Jie Liu3d3c8b52013-08-12 20:49:59 +1000571 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_equotaoff, 0, 0);
Jeff Liu762d7ba2013-01-28 21:27:21 +0800572 if (error) {
Christoph Hellwig4906e212015-06-04 13:47:56 +1000573 xfs_trans_cancel(tp);
Eric Sandeend99831f2014-06-22 15:03:54 +1000574 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 }
576
577 qoffi = xfs_trans_get_qoff_item(tp, startqoff,
578 flags & XFS_ALL_QUOTA_ACCT);
579 xfs_trans_log_quotaoff_item(tp, qoffi);
580
581 /*
582 * We have to make sure that the transaction is secure on disk before we
583 * return and actually stop quota accounting. So, make it synchronous.
584 * We don't care about quotoff's performance.
585 */
586 xfs_trans_set_sync(tp);
Christoph Hellwig70393312015-06-04 13:48:08 +1000587 return xfs_trans_commit(tp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588}
589
590
591STATIC int
592xfs_qm_log_quotaoff(
593 xfs_mount_t *mp,
594 xfs_qoff_logitem_t **qoffstartp,
595 uint flags)
596{
597 xfs_trans_t *tp;
598 int error;
Brian Foster5d45ee12014-11-28 14:00:53 +1100599 xfs_qoff_logitem_t *qoffi;
600
601 *qoffstartp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602
603 tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF);
Jie Liu3d3c8b52013-08-12 20:49:59 +1000604 error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_quotaoff, 0, 0);
Brian Foster5d45ee12014-11-28 14:00:53 +1100605 if (error) {
Christoph Hellwig4906e212015-06-04 13:47:56 +1000606 xfs_trans_cancel(tp);
Brian Foster5d45ee12014-11-28 14:00:53 +1100607 goto out;
608 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
610 qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
611 xfs_trans_log_quotaoff_item(tp, qoffi);
612
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000613 spin_lock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614 mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000615 spin_unlock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616
Dave Chinner61e63ec2015-01-22 09:10:31 +1100617 xfs_log_sb(tp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618
619 /*
620 * We have to make sure that the transaction is secure on disk before we
621 * return and actually stop quota accounting. So, make it synchronous.
622 * We don't care about quotoff's performance.
623 */
624 xfs_trans_set_sync(tp);
Christoph Hellwig70393312015-06-04 13:48:08 +1000625 error = xfs_trans_commit(tp);
Brian Foster5d45ee12014-11-28 14:00:53 +1100626 if (error)
627 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629 *qoffstartp = qoffi;
Brian Foster5d45ee12014-11-28 14:00:53 +1100630out:
Eric Sandeend99831f2014-06-22 15:03:54 +1000631 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632}
633
634
Christoph Hellwig18535a72012-02-20 02:28:16 +0000635int
636xfs_qm_scall_getquota(
637 struct xfs_mount *mp,
Eric Sandeen296c24e2016-02-08 11:27:38 +1100638 xfs_dqid_t *id,
Christoph Hellwig18535a72012-02-20 02:28:16 +0000639 uint type,
Eric Sandeen296c24e2016-02-08 11:27:38 +1100640 struct qc_dqblk *dst,
641 uint dqget_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700642{
Christoph Hellwig18535a72012-02-20 02:28:16 +0000643 struct xfs_dquot *dqp;
644 int error;
645
646 /*
647 * Try to get the dquot. We don't want it allocated on disk, so
648 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
649 * exist, we'll get ENOENT back.
650 */
Eric Sandeen296c24e2016-02-08 11:27:38 +1100651 error = xfs_qm_dqget(mp, NULL, *id, type, dqget_flags, &dqp);
Christoph Hellwig18535a72012-02-20 02:28:16 +0000652 if (error)
653 return error;
654
655 /*
656 * If everything's NULL, this dquot doesn't quite exist as far as
657 * our utility programs are concerned.
658 */
659 if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
Dave Chinner24513372014-06-25 14:58:08 +1000660 error = -ENOENT;
Christoph Hellwig18535a72012-02-20 02:28:16 +0000661 goto out_put;
662 }
663
Eric Sandeen296c24e2016-02-08 11:27:38 +1100664 /* Fill in the ID we actually read from disk */
665 *id = be32_to_cpu(dqp->q_core.d_id);
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667 memset(dst, 0, sizeof(*dst));
Jan Kara14bf61f2014-10-09 16:03:13 +0200668 dst->d_spc_hardlimit =
669 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
670 dst->d_spc_softlimit =
671 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
Christoph Hellwig18535a72012-02-20 02:28:16 +0000672 dst->d_ino_hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
673 dst->d_ino_softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200674 dst->d_space = XFS_FSB_TO_B(mp, dqp->q_res_bcount);
675 dst->d_ino_count = dqp->q_res_icount;
676 dst->d_spc_timer = be32_to_cpu(dqp->q_core.d_btimer);
677 dst->d_ino_timer = be32_to_cpu(dqp->q_core.d_itimer);
678 dst->d_ino_warns = be16_to_cpu(dqp->q_core.d_iwarns);
679 dst->d_spc_warns = be16_to_cpu(dqp->q_core.d_bwarns);
680 dst->d_rt_spc_hardlimit =
681 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
682 dst->d_rt_spc_softlimit =
683 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
684 dst->d_rt_space = XFS_FSB_TO_B(mp, dqp->q_res_rtbcount);
685 dst->d_rt_spc_timer = be32_to_cpu(dqp->q_core.d_rtbtimer);
686 dst->d_rt_spc_warns = be16_to_cpu(dqp->q_core.d_rtbwarns);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700687
688 /*
689 * Internally, we don't reset all the timers when quota enforcement
Nathan Scottc41564b2006-03-29 08:55:14 +1000690 * gets turned off. No need to confuse the user level code,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691 * so return zeroes in that case.
692 */
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500693 if ((!XFS_IS_UQUOTA_ENFORCED(mp) &&
694 dqp->q_core.d_flags == XFS_DQ_USER) ||
695 (!XFS_IS_GQUOTA_ENFORCED(mp) &&
696 dqp->q_core.d_flags == XFS_DQ_GROUP) ||
697 (!XFS_IS_PQUOTA_ENFORCED(mp) &&
698 dqp->q_core.d_flags == XFS_DQ_PROJ)) {
Jan Kara14bf61f2014-10-09 16:03:13 +0200699 dst->d_spc_timer = 0;
700 dst->d_ino_timer = 0;
701 dst->d_rt_spc_timer = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702 }
703
704#ifdef DEBUG
Jan Kara14bf61f2014-10-09 16:03:13 +0200705 if (((XFS_IS_UQUOTA_ENFORCED(mp) && type == XFS_DQ_USER) ||
706 (XFS_IS_GQUOTA_ENFORCED(mp) && type == XFS_DQ_GROUP) ||
707 (XFS_IS_PQUOTA_ENFORCED(mp) && type == XFS_DQ_PROJ)) &&
Eric Sandeen296c24e2016-02-08 11:27:38 +1100708 *id != 0) {
Jan Kara14bf61f2014-10-09 16:03:13 +0200709 if ((dst->d_space > dst->d_spc_softlimit) &&
710 (dst->d_spc_softlimit > 0)) {
711 ASSERT(dst->d_spc_timer != 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200713 if ((dst->d_ino_count > dst->d_ino_softlimit) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 (dst->d_ino_softlimit > 0)) {
Jan Kara14bf61f2014-10-09 16:03:13 +0200715 ASSERT(dst->d_ino_timer != 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 }
717 }
718#endif
Christoph Hellwig18535a72012-02-20 02:28:16 +0000719out_put:
720 xfs_qm_dqput(dqp);
721 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700722}
723
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200725STATIC int
726xfs_dqrele_inode(
727 struct xfs_inode *ip,
Brian Fostera454f742012-11-06 09:50:39 -0500728 int flags,
729 void *args)
David Chinner5b4d89a2008-10-30 17:08:03 +1100730{
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200731 /* skip quota inodes */
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000732 if (ip == ip->i_mount->m_quotainfo->qi_uquotaip ||
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500733 ip == ip->i_mount->m_quotainfo->qi_gquotaip ||
734 ip == ip->i_mount->m_quotainfo->qi_pquotaip) {
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200735 ASSERT(ip->i_udquot == NULL);
736 ASSERT(ip->i_gdquot == NULL);
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500737 ASSERT(ip->i_pdquot == NULL);
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200738 return 0;
739 }
Dave Chinnercb4f0d12008-11-10 17:11:18 +1100740
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200741 xfs_ilock(ip, XFS_ILOCK_EXCL);
742 if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) {
743 xfs_qm_dqrele(ip->i_udquot);
744 ip->i_udquot = NULL;
745 }
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500746 if ((flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) {
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200747 xfs_qm_dqrele(ip->i_gdquot);
748 ip->i_gdquot = NULL;
749 }
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500750 if ((flags & XFS_PQUOTA_ACCT) && ip->i_pdquot) {
751 xfs_qm_dqrele(ip->i_pdquot);
752 ip->i_pdquot = NULL;
753 }
Christoph Hellwigf2d67612010-06-24 11:52:50 +1000754 xfs_iunlock(ip, XFS_ILOCK_EXCL);
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200755 return 0;
David Chinner5b4d89a2008-10-30 17:08:03 +1100756}
757
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200758
David Chinner5b4d89a2008-10-30 17:08:03 +1100759/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 * Go thru all the inodes in the file system, releasing their dquots.
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200761 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762 * Note that the mount structure gets modified to indicate that quotas are off
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200763 * AFTER this, in the case of quotaoff.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764 */
765void
766xfs_qm_dqrele_all_inodes(
767 struct xfs_mount *mp,
768 uint flags)
769{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 ASSERT(mp->m_quotainfo);
Brian Fostera454f742012-11-06 09:50:39 -0500771 xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700772}