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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 Chinner70a9883c2013-10-23 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
Christoph Hellwig253f4912016-04-06 09:19:55 +1000239 error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000240 if (error) {
Christoph Hellwig5d188982010-07-20 17:51:31 +1000241 xfs_iunlock(ip, XFS_IOLOCK_EXCL);
242 goto out_put;
243 }
244
245 xfs_ilock(ip, XFS_ILOCK_EXCL);
Christoph Hellwigddc34152011-09-19 15:00:54 +0000246 xfs_trans_ijoin(tp, ip, 0);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000247
Christoph Hellwig673e8e52011-12-18 20:00:04 +0000248 ip->i_d.di_size = 0;
Christoph Hellwig673e8e52011-12-18 20:00:04 +0000249 xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
250
251 error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000252 if (error) {
Christoph Hellwig4906e212015-06-04 13:47:56 +1000253 xfs_trans_cancel(tp);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000254 goto out_unlock;
255 }
256
Christoph Hellwig673e8e52011-12-18 20:00:04 +0000257 ASSERT(ip->i_d.di_nextents == 0);
258
Dave Chinnerdcd79a12010-09-28 12:27:25 +1000259 xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
Christoph Hellwig70393312015-06-04 13:48:08 +1000260 error = xfs_trans_commit(tp);
Christoph Hellwig5d188982010-07-20 17:51:31 +1000261
262out_unlock:
263 xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
264out_put:
265 IRELE(ip);
266 return error;
267}
268
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100269int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700270xfs_qm_scall_trunc_qfiles(
271 xfs_mount_t *mp,
272 uint flags)
273{
Dave Chinner24513372014-06-25 14:58:08 +1000274 int error = -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275
Eric Sandeenf58522c2014-05-05 17:27:06 +1000276 if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0 ||
277 (flags & ~XFS_DQ_ALLTYPES)) {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500278 xfs_debug(mp, "%s: flags=%x m_qflags=%x",
Dave Chinner82211122011-03-07 10:07:35 +1100279 __func__, flags, mp->m_qflags);
Dave Chinner24513372014-06-25 14:58:08 +1000280 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281 }
282
Jie Liuc61a9e32013-11-22 14:04:00 +0800283 if (flags & XFS_DQ_USER) {
Christoph Hellwig5d188982010-07-20 17:51:31 +1000284 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
Jie Liuc61a9e32013-11-22 14:04:00 +0800285 if (error)
286 return error;
287 }
288 if (flags & XFS_DQ_GROUP) {
289 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
290 if (error)
291 return error;
292 }
Chandra Seetharamand892d582013-07-19 17:36:02 -0500293 if (flags & XFS_DQ_PROJ)
Jie Liuc61a9e32013-11-22 14:04:00 +0800294 error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_pquotino);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295
Jie Liuc61a9e32013-11-22 14:04:00 +0800296 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297}
298
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299/*
300 * Switch on (a given) quota enforcement for a filesystem. This takes
301 * effect immediately.
302 * (Switching on quota accounting must be done at mount time.)
303 */
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100304int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305xfs_qm_scall_quotaon(
306 xfs_mount_t *mp,
307 uint flags)
308{
309 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 uint qf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
313 /*
314 * Switching on quota accounting must be done at mount time.
315 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 flags &= ~(XFS_ALL_QUOTA_ACCT);
317
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 if (flags == 0) {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500319 xfs_debug(mp, "%s: zero flags, m_qflags=%x",
Dave Chinner82211122011-03-07 10:07:35 +1100320 __func__, mp->m_qflags);
Dave Chinner24513372014-06-25 14:58:08 +1000321 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322 }
323
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 /*
325 * Can't enforce without accounting. We check the superblock
326 * qflags here instead of m_qflags because rootfs can have
327 * quota acct on ondisk without m_qflags' knowing.
328 */
Jan Karafbf64b32014-10-08 11:52:52 +0200329 if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500330 (flags & XFS_UQUOTA_ENFD)) ||
Jan Karafbf64b32014-10-08 11:52:52 +0200331 ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500332 (flags & XFS_GQUOTA_ENFD)) ||
Jan Karafbf64b32014-10-08 11:52:52 +0200333 ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500334 (flags & XFS_PQUOTA_ENFD))) {
Dave Chinner82211122011-03-07 10:07:35 +1100335 xfs_debug(mp,
Eric Sandeen08e96e12013-10-11 20:59:05 -0500336 "%s: Can't enforce without acct, flags=%x sbflags=%x",
Dave Chinner82211122011-03-07 10:07:35 +1100337 __func__, flags, mp->m_sb.sb_qflags);
Dave Chinner24513372014-06-25 14:58:08 +1000338 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 }
340 /*
Lucas De Marchi25985ed2011-03-30 22:57:33 -0300341 * If everything's up to-date incore, then don't waste time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 */
343 if ((mp->m_qflags & flags) == flags)
Dave Chinner24513372014-06-25 14:58:08 +1000344 return -EEXIST;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
346 /*
347 * Change sb_qflags on disk but not incore mp->qflags
348 * if this is the root filesystem.
349 */
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000350 spin_lock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 qf = mp->m_sb.sb_qflags;
352 mp->m_sb.sb_qflags = qf | flags;
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000353 spin_unlock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354
355 /*
356 * There's nothing to change if it's the same.
357 */
Dave Chinner4d11a402015-01-22 09:10:26 +1100358 if ((qf & flags) == flags)
Dave Chinner24513372014-06-25 14:58:08 +1000359 return -EEXIST;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360
Dave Chinner61e63ec2015-01-22 09:10:31 +1100361 error = xfs_sync_sb(mp, false);
362 if (error)
Eric Sandeend99831f2014-06-22 15:03:54 +1000363 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700364 /*
365 * If we aren't trying to switch on quota enforcement, we are done.
366 */
367 if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
368 (mp->m_qflags & XFS_UQUOTA_ACCT)) ||
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000369 ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) !=
370 (mp->m_qflags & XFS_PQUOTA_ACCT)) ||
371 ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) !=
Jan Karafbf64b32014-10-08 11:52:52 +0200372 (mp->m_qflags & XFS_GQUOTA_ACCT)))
Eric Sandeend99831f2014-06-22 15:03:54 +1000373 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374
375 if (! XFS_IS_QUOTA_RUNNING(mp))
Dave Chinner24513372014-06-25 14:58:08 +1000376 return -ESRCH;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377
378 /*
379 * Switch on quota enforcement in core.
380 */
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000381 mutex_lock(&mp->m_quotainfo->qi_quotaofflock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000383 mutex_unlock(&mp->m_quotainfo->qi_quotaofflock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700384
Eric Sandeend99831f2014-06-22 15:03:54 +1000385 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386}
387
Jan Kara14bf61f2014-10-09 16:03:13 +0200388#define XFS_QC_MASK \
389 (QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
Christoph Hellwigc472b432010-05-06 17:05:17 -0400390
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391/*
392 * Adjust quota limits, and start/stop timers accordingly.
393 */
Christoph Hellwigfcafb712009-02-09 08:47:34 +0100394int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395xfs_qm_scall_setqlim(
Brian Fosterb1366452013-03-18 10:51:46 -0400396 struct xfs_mount *mp,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 xfs_dqid_t id,
398 uint type,
Jan Kara14bf61f2014-10-09 16:03:13 +0200399 struct qc_dqblk *newlim)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400{
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000401 struct xfs_quotainfo *q = mp->m_quotainfo;
Brian Fosterb1366452013-03-18 10:51:46 -0400402 struct xfs_disk_dquot *ddq;
403 struct xfs_dquot *dqp;
404 struct xfs_trans *tp;
Carlos Maiolinobe607942016-02-08 11:27:55 +1100405 struct xfs_def_quota *defq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 int error;
407 xfs_qcnt_t hard, soft;
408
Jan Kara14bf61f2014-10-09 16:03:13 +0200409 if (newlim->d_fieldmask & ~XFS_QC_MASK)
Dave Chinner24513372014-06-25 14:58:08 +1000410 return -EINVAL;
Jan Kara14bf61f2014-10-09 16:03:13 +0200411 if ((newlim->d_fieldmask & XFS_QC_MASK) == 0)
Christoph Hellwigc472b432010-05-06 17:05:17 -0400412 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413
Dave Chinnerf6481672013-05-21 18:02:00 +1000414 /*
415 * We don't want to race with a quotaoff so take the quotaoff lock.
416 * We don't hold an inode lock, so there's nothing else to stop
417 * a quotaoff from happening.
418 */
419 mutex_lock(&q->qi_quotaofflock);
420
421 /*
422 * Get the dquot (locked) before we start, as we need to do a
423 * transaction to allocate it if it doesn't exist. Once we have the
424 * dquot, unlock it so we can start the next transaction safely. We hold
425 * a reference to the dquot, so it's safe to do this unlock/lock without
426 * it being reclaimed in the mean time.
427 */
428 error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp);
429 if (error) {
Dave Chinner24513372014-06-25 14:58:08 +1000430 ASSERT(error != -ENOENT);
Dave Chinnerf6481672013-05-21 18:02:00 +1000431 goto out_unlock;
432 }
Carlos Maiolinobe607942016-02-08 11:27:55 +1100433
434 defq = xfs_get_defquota(dqp, q);
Dave Chinnerf6481672013-05-21 18:02:00 +1000435 xfs_dqunlock(dqp);
436
Christoph Hellwig253f4912016-04-06 09:19:55 +1000437 error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_setqlim, 0, 0, 0, &tp);
438 if (error)
Dave Chinnerf6481672013-05-21 18:02:00 +1000439 goto out_rele;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440
Dave Chinnerf6481672013-05-21 18:02:00 +1000441 xfs_dqlock(dqp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 xfs_trans_dqjoin(tp, dqp);
443 ddq = &dqp->q_core;
444
445 /*
446 * Make sure that hardlimits are >= soft limits before changing.
447 */
Jan Kara14bf61f2014-10-09 16:03:13 +0200448 hard = (newlim->d_fieldmask & QC_SPC_HARD) ?
449 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100450 be64_to_cpu(ddq->d_blk_hardlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200451 soft = (newlim->d_fieldmask & QC_SPC_SOFT) ?
452 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100453 be64_to_cpu(ddq->d_blk_softlimit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 if (hard == 0 || hard >= soft) {
Christoph Hellwig1149d962005-11-02 15:01:12 +1100455 ddq->d_blk_hardlimit = cpu_to_be64(hard);
456 ddq->d_blk_softlimit = cpu_to_be64(soft);
Brian Fosterb1366452013-03-18 10:51:46 -0400457 xfs_dquot_set_prealloc_limits(dqp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458 if (id == 0) {
Carlos Maiolinobe607942016-02-08 11:27:55 +1100459 defq->bhardlimit = hard;
460 defq->bsoftlimit = soft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461 }
462 } else {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500463 xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200465 hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
466 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100467 be64_to_cpu(ddq->d_rtb_hardlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200468 soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ?
469 (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100470 be64_to_cpu(ddq->d_rtb_softlimit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 if (hard == 0 || hard >= soft) {
Christoph Hellwig1149d962005-11-02 15:01:12 +1100472 ddq->d_rtb_hardlimit = cpu_to_be64(hard);
473 ddq->d_rtb_softlimit = cpu_to_be64(soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 if (id == 0) {
Carlos Maiolinobe607942016-02-08 11:27:55 +1100475 defq->rtbhardlimit = hard;
476 defq->rtbsoftlimit = soft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700477 }
478 } else {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500479 xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700480 }
481
Jan Kara14bf61f2014-10-09 16:03:13 +0200482 hard = (newlim->d_fieldmask & QC_INO_HARD) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -0700483 (xfs_qcnt_t) newlim->d_ino_hardlimit :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100484 be64_to_cpu(ddq->d_ino_hardlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200485 soft = (newlim->d_fieldmask & QC_INO_SOFT) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -0700486 (xfs_qcnt_t) newlim->d_ino_softlimit :
Christoph Hellwig1149d962005-11-02 15:01:12 +1100487 be64_to_cpu(ddq->d_ino_softlimit);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 if (hard == 0 || hard >= soft) {
Christoph Hellwig1149d962005-11-02 15:01:12 +1100489 ddq->d_ino_hardlimit = cpu_to_be64(hard);
490 ddq->d_ino_softlimit = cpu_to_be64(soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 if (id == 0) {
Carlos Maiolinobe607942016-02-08 11:27:55 +1100492 defq->ihardlimit = hard;
493 defq->isoftlimit = soft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494 }
495 } else {
Eric Sandeen08e96e12013-10-11 20:59:05 -0500496 xfs_debug(mp, "ihard %Ld < isoft %Ld", hard, soft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497 }
498
Nathan Scott754002b2005-06-21 15:49:06 +1000499 /*
500 * Update warnings counter(s) if requested
501 */
Jan Kara14bf61f2014-10-09 16:03:13 +0200502 if (newlim->d_fieldmask & QC_SPC_WARNS)
503 ddq->d_bwarns = cpu_to_be16(newlim->d_spc_warns);
504 if (newlim->d_fieldmask & QC_INO_WARNS)
505 ddq->d_iwarns = cpu_to_be16(newlim->d_ino_warns);
506 if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
507 ddq->d_rtbwarns = cpu_to_be16(newlim->d_rt_spc_warns);
Nathan Scott754002b2005-06-21 15:49:06 +1000508
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509 if (id == 0) {
510 /*
511 * Timelimits for the super user set the relative time
512 * the other users can be over quota for this file system.
513 * If it is zero a default is used. Ditto for the default
Nathan Scott754002b2005-06-21 15:49:06 +1000514 * soft and hard limit values (already done, above), and
515 * for warnings.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 */
Jan Kara14bf61f2014-10-09 16:03:13 +0200517 if (newlim->d_fieldmask & QC_SPC_TIMER) {
518 q->qi_btimelimit = newlim->d_spc_timer;
519 ddq->d_btimer = cpu_to_be32(newlim->d_spc_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200521 if (newlim->d_fieldmask & QC_INO_TIMER) {
522 q->qi_itimelimit = newlim->d_ino_timer;
523 ddq->d_itimer = cpu_to_be32(newlim->d_ino_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200525 if (newlim->d_fieldmask & QC_RT_SPC_TIMER) {
526 q->qi_rtbtimelimit = newlim->d_rt_spc_timer;
527 ddq->d_rtbtimer = cpu_to_be32(newlim->d_rt_spc_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200529 if (newlim->d_fieldmask & QC_SPC_WARNS)
530 q->qi_bwarnlimit = newlim->d_spc_warns;
531 if (newlim->d_fieldmask & QC_INO_WARNS)
532 q->qi_iwarnlimit = newlim->d_ino_warns;
533 if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
534 q->qi_rtbwarnlimit = newlim->d_rt_spc_warns;
Nathan Scott754002b2005-06-21 15:49:06 +1000535 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536 /*
537 * If the user is now over quota, start the timelimit.
538 * The user will not be 'warned'.
539 * Note that we keep the timers ticking, whether enforcement
540 * is on or off. We don't really want to bother with iterating
541 * over all ondisk dquots and turning the timers on/off.
542 */
543 xfs_qm_adjust_dqtimers(mp, ddq);
544 }
545 dqp->dq_flags |= XFS_DQ_DIRTY;
546 xfs_trans_log_dquot(tp, dqp);
547
Christoph Hellwig70393312015-06-04 13:48:08 +1000548 error = xfs_trans_commit(tp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549
Dave Chinnerf6481672013-05-21 18:02:00 +1000550out_rele:
551 xfs_qm_dqrele(dqp);
552out_unlock:
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000553 mutex_unlock(&q->qi_quotaofflock);
David Chinnere5720ee2008-04-10 12:21:18 +1000554 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555}
556
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557STATIC int
558xfs_qm_log_quotaoff_end(
559 xfs_mount_t *mp,
560 xfs_qoff_logitem_t *startqoff,
561 uint flags)
562{
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000563 xfs_trans_t *tp;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 int error;
Nathan Scottc8ad20f2005-06-21 15:38:48 +1000565 xfs_qoff_logitem_t *qoffi;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566
Christoph Hellwig253f4912016-04-06 09:19:55 +1000567 error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_equotaoff, 0, 0, 0, &tp);
568 if (error)
Eric Sandeend99831f2014-06-22 15:03:54 +1000569 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570
571 qoffi = xfs_trans_get_qoff_item(tp, startqoff,
572 flags & XFS_ALL_QUOTA_ACCT);
573 xfs_trans_log_quotaoff_item(tp, qoffi);
574
575 /*
576 * We have to make sure that the transaction is secure on disk before we
577 * return and actually stop quota accounting. So, make it synchronous.
578 * We don't care about quotoff's performance.
579 */
580 xfs_trans_set_sync(tp);
Christoph Hellwig70393312015-06-04 13:48:08 +1000581 return xfs_trans_commit(tp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700582}
583
584
585STATIC int
586xfs_qm_log_quotaoff(
587 xfs_mount_t *mp,
588 xfs_qoff_logitem_t **qoffstartp,
589 uint flags)
590{
591 xfs_trans_t *tp;
592 int error;
Brian Foster5d45ee12014-11-28 14:00:53 +1100593 xfs_qoff_logitem_t *qoffi;
594
595 *qoffstartp = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596
Christoph Hellwig253f4912016-04-06 09:19:55 +1000597 error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_quotaoff, 0, 0, 0, &tp);
598 if (error)
Brian Foster5d45ee12014-11-28 14:00:53 +1100599 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600
601 qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
602 xfs_trans_log_quotaoff_item(tp, qoffi);
603
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000604 spin_lock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700605 mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
Eric Sandeen3685c2a2007-10-11 17:42:32 +1000606 spin_unlock(&mp->m_sb_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607
Dave Chinner61e63ec2015-01-22 09:10:31 +1100608 xfs_log_sb(tp);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609
610 /*
611 * We have to make sure that the transaction is secure on disk before we
612 * return and actually stop quota accounting. So, make it synchronous.
613 * We don't care about quotoff's performance.
614 */
615 xfs_trans_set_sync(tp);
Christoph Hellwig70393312015-06-04 13:48:08 +1000616 error = xfs_trans_commit(tp);
Brian Foster5d45ee12014-11-28 14:00:53 +1100617 if (error)
618 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620 *qoffstartp = qoffi;
Brian Foster5d45ee12014-11-28 14:00:53 +1100621out:
Eric Sandeend99831f2014-06-22 15:03:54 +1000622 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623}
624
625
Christoph Hellwig18535a72012-02-20 02:28:16 +0000626int
627xfs_qm_scall_getquota(
628 struct xfs_mount *mp,
Eric Sandeen296c24e2016-02-08 11:27:38 +1100629 xfs_dqid_t *id,
Christoph Hellwig18535a72012-02-20 02:28:16 +0000630 uint type,
Eric Sandeen296c24e2016-02-08 11:27:38 +1100631 struct qc_dqblk *dst,
632 uint dqget_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633{
Christoph Hellwig18535a72012-02-20 02:28:16 +0000634 struct xfs_dquot *dqp;
635 int error;
636
637 /*
638 * Try to get the dquot. We don't want it allocated on disk, so
639 * we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
640 * exist, we'll get ENOENT back.
641 */
Eric Sandeen296c24e2016-02-08 11:27:38 +1100642 error = xfs_qm_dqget(mp, NULL, *id, type, dqget_flags, &dqp);
Christoph Hellwig18535a72012-02-20 02:28:16 +0000643 if (error)
644 return error;
645
646 /*
647 * If everything's NULL, this dquot doesn't quite exist as far as
648 * our utility programs are concerned.
649 */
650 if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
Dave Chinner24513372014-06-25 14:58:08 +1000651 error = -ENOENT;
Christoph Hellwig18535a72012-02-20 02:28:16 +0000652 goto out_put;
653 }
654
Eric Sandeen296c24e2016-02-08 11:27:38 +1100655 /* Fill in the ID we actually read from disk */
656 *id = be32_to_cpu(dqp->q_core.d_id);
657
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 memset(dst, 0, sizeof(*dst));
Jan Kara14bf61f2014-10-09 16:03:13 +0200659 dst->d_spc_hardlimit =
660 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
661 dst->d_spc_softlimit =
662 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
Christoph Hellwig18535a72012-02-20 02:28:16 +0000663 dst->d_ino_hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
664 dst->d_ino_softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
Jan Kara14bf61f2014-10-09 16:03:13 +0200665 dst->d_space = XFS_FSB_TO_B(mp, dqp->q_res_bcount);
666 dst->d_ino_count = dqp->q_res_icount;
667 dst->d_spc_timer = be32_to_cpu(dqp->q_core.d_btimer);
668 dst->d_ino_timer = be32_to_cpu(dqp->q_core.d_itimer);
669 dst->d_ino_warns = be16_to_cpu(dqp->q_core.d_iwarns);
670 dst->d_spc_warns = be16_to_cpu(dqp->q_core.d_bwarns);
671 dst->d_rt_spc_hardlimit =
672 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
673 dst->d_rt_spc_softlimit =
674 XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
675 dst->d_rt_space = XFS_FSB_TO_B(mp, dqp->q_res_rtbcount);
676 dst->d_rt_spc_timer = be32_to_cpu(dqp->q_core.d_rtbtimer);
677 dst->d_rt_spc_warns = be16_to_cpu(dqp->q_core.d_rtbwarns);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678
679 /*
680 * Internally, we don't reset all the timers when quota enforcement
Nathan Scottc41564b2006-03-29 08:55:14 +1000681 * gets turned off. No need to confuse the user level code,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 * so return zeroes in that case.
683 */
Chandra Seetharaman83e782e2013-06-27 17:25:10 -0500684 if ((!XFS_IS_UQUOTA_ENFORCED(mp) &&
685 dqp->q_core.d_flags == XFS_DQ_USER) ||
686 (!XFS_IS_GQUOTA_ENFORCED(mp) &&
687 dqp->q_core.d_flags == XFS_DQ_GROUP) ||
688 (!XFS_IS_PQUOTA_ENFORCED(mp) &&
689 dqp->q_core.d_flags == XFS_DQ_PROJ)) {
Jan Kara14bf61f2014-10-09 16:03:13 +0200690 dst->d_spc_timer = 0;
691 dst->d_ino_timer = 0;
692 dst->d_rt_spc_timer = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693 }
694
695#ifdef DEBUG
Jan Kara14bf61f2014-10-09 16:03:13 +0200696 if (((XFS_IS_UQUOTA_ENFORCED(mp) && type == XFS_DQ_USER) ||
697 (XFS_IS_GQUOTA_ENFORCED(mp) && type == XFS_DQ_GROUP) ||
698 (XFS_IS_PQUOTA_ENFORCED(mp) && type == XFS_DQ_PROJ)) &&
Eric Sandeen296c24e2016-02-08 11:27:38 +1100699 *id != 0) {
Jan Kara14bf61f2014-10-09 16:03:13 +0200700 if ((dst->d_space > dst->d_spc_softlimit) &&
701 (dst->d_spc_softlimit > 0)) {
702 ASSERT(dst->d_spc_timer != 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703 }
Jan Kara14bf61f2014-10-09 16:03:13 +0200704 if ((dst->d_ino_count > dst->d_ino_softlimit) &&
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 (dst->d_ino_softlimit > 0)) {
Jan Kara14bf61f2014-10-09 16:03:13 +0200706 ASSERT(dst->d_ino_timer != 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707 }
708 }
709#endif
Christoph Hellwig18535a72012-02-20 02:28:16 +0000710out_put:
711 xfs_qm_dqput(dqp);
712 return error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700713}
714
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200716STATIC int
717xfs_dqrele_inode(
718 struct xfs_inode *ip,
Brian Fostera454f742012-11-06 09:50:39 -0500719 int flags,
720 void *args)
David Chinner5b4d89a2008-10-30 17:08:03 +1100721{
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200722 /* skip quota inodes */
Christoph Hellwig8a7b8a82010-04-20 17:01:30 +1000723 if (ip == ip->i_mount->m_quotainfo->qi_uquotaip ||
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500724 ip == ip->i_mount->m_quotainfo->qi_gquotaip ||
725 ip == ip->i_mount->m_quotainfo->qi_pquotaip) {
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200726 ASSERT(ip->i_udquot == NULL);
727 ASSERT(ip->i_gdquot == NULL);
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500728 ASSERT(ip->i_pdquot == NULL);
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200729 return 0;
730 }
Dave Chinnercb4f0d12008-11-10 17:11:18 +1100731
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200732 xfs_ilock(ip, XFS_ILOCK_EXCL);
733 if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) {
734 xfs_qm_dqrele(ip->i_udquot);
735 ip->i_udquot = NULL;
736 }
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500737 if ((flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) {
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200738 xfs_qm_dqrele(ip->i_gdquot);
739 ip->i_gdquot = NULL;
740 }
Chandra Seetharaman92f8ff72013-07-11 00:00:40 -0500741 if ((flags & XFS_PQUOTA_ACCT) && ip->i_pdquot) {
742 xfs_qm_dqrele(ip->i_pdquot);
743 ip->i_pdquot = NULL;
744 }
Christoph Hellwigf2d67612010-06-24 11:52:50 +1000745 xfs_iunlock(ip, XFS_ILOCK_EXCL);
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200746 return 0;
David Chinner5b4d89a2008-10-30 17:08:03 +1100747}
748
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200749
David Chinner5b4d89a2008-10-30 17:08:03 +1100750/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751 * Go thru all the inodes in the file system, releasing their dquots.
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200752 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753 * Note that the mount structure gets modified to indicate that quotas are off
Christoph Hellwigfe588ed2009-06-08 15:35:27 +0200754 * AFTER this, in the case of quotaoff.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 */
756void
757xfs_qm_dqrele_all_inodes(
758 struct xfs_mount *mp,
759 uint flags)
760{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761 ASSERT(mp->m_quotainfo);
Brian Fostera454f742012-11-06 09:50:39 -0500762 xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763}