Commit | Line | Data |
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1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
4ce3121f NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
4ce3121f NS |
9 | * 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. | |
1da177e4 | 13 | * |
4ce3121f NS |
14 | * 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 | |
1da177e4 | 17 | */ |
16f7e0fe RD |
18 | |
19 | #include <linux/capability.h> | |
20 | ||
1da177e4 LT |
21 | #include "xfs.h" |
22 | #include "xfs_fs.h" | |
70a9883c | 23 | #include "xfs_shared.h" |
239880ef DC |
24 | #include "xfs_format.h" |
25 | #include "xfs_log_format.h" | |
26 | #include "xfs_trans_resv.h" | |
a844f451 | 27 | #include "xfs_bit.h" |
1da177e4 | 28 | #include "xfs_sb.h" |
1da177e4 | 29 | #include "xfs_mount.h" |
1da177e4 | 30 | #include "xfs_inode.h" |
239880ef | 31 | #include "xfs_trans.h" |
1da177e4 | 32 | #include "xfs_error.h" |
a4fbe6ab | 33 | #include "xfs_quota.h" |
1da177e4 | 34 | #include "xfs_qm.h" |
0b1b213f | 35 | #include "xfs_trace.h" |
6d8b79cf | 36 | #include "xfs_icache.h" |
1da177e4 | 37 | |
1da177e4 LT |
38 | STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint); |
39 | STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *, | |
40 | uint); | |
1da177e4 | 41 | |
1da177e4 LT |
42 | /* |
43 | * 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 | */ | |
fcafb71b | 50 | int |
1da177e4 LT |
51 | xfs_qm_scall_quotaoff( |
52 | xfs_mount_t *mp, | |
fcafb71b | 53 | uint flags) |
1da177e4 | 54 | { |
8a7b8a89 | 55 | struct xfs_quotainfo *q = mp->m_quotainfo; |
1da177e4 | 56 | uint dqtype; |
1da177e4 LT |
57 | int error; |
58 | uint inactivate_flags; | |
59 | xfs_qoff_logitem_t *qoffstart; | |
1da177e4 | 60 | |
1da177e4 LT |
61 | /* |
62 | * No file system can have quotas enabled on disk but not in core. | |
63 | * Note that quota utilities (like quotaoff) _expect_ | |
2451337d | 64 | * errno == -EEXIST here. |
1da177e4 LT |
65 | */ |
66 | if ((mp->m_qflags & flags) == 0) | |
2451337d | 67 | return -EEXIST; |
1da177e4 LT |
68 | 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 | */ | |
8a7b8a89 CH |
78 | ASSERT(q); |
79 | mutex_lock(&q->qi_quotaofflock); | |
1da177e4 LT |
80 | |
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 | ||
3685c2a1 | 87 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 88 | mp->m_sb.sb_qflags = mp->m_qflags; |
3685c2a1 | 89 | spin_unlock(&mp->m_sb_lock); |
8a7b8a89 | 90 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 LT |
91 | |
92 | /* XXX what to do if error ? Revert back to old vals incore ? */ | |
61e63ecb | 93 | return xfs_sync_sb(mp, false); |
1da177e4 LT |
94 | } |
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; | |
83e782e1 | 110 | flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD); |
1da177e4 | 111 | inactivate_flags |= XFS_GQUOTA_ACTIVE; |
92f8ff73 CS |
112 | } |
113 | if (flags & XFS_PQUOTA_ACCT) { | |
c8ad20ff | 114 | dqtype |= XFS_QMOPT_PQUOTA; |
83e782e1 | 115 | flags |= (XFS_PQUOTA_CHKD | XFS_PQUOTA_ENFD); |
c8ad20ff | 116 | inactivate_flags |= XFS_PQUOTA_ACTIVE; |
1da177e4 LT |
117 | } |
118 | ||
119 | /* | |
120 | * Nothing to do? Don't complain. This happens when we're just | |
121 | * turning off quota enforcement. | |
122 | */ | |
8a7b8a89 CH |
123 | if ((mp->m_qflags & flags) == 0) |
124 | goto out_unlock; | |
1da177e4 LT |
125 | |
126 | /* | |
127 | * Write the LI_QUOTAOFF log record, and do SB changes atomically, | |
cb6edc26 DC |
128 | * and synchronously. If we fail to write, we should abort the |
129 | * operation as it cannot be recovered safely if we crash. | |
1da177e4 | 130 | */ |
cb6edc26 DC |
131 | error = xfs_qm_log_quotaoff(mp, &qoffstart, flags); |
132 | if (error) | |
8a7b8a89 | 133 | goto out_unlock; |
1da177e4 LT |
134 | |
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 | |
25985edc | 163 | * don't want to take a mrlock every time we depend on quotas being on. |
1da177e4 | 164 | */ |
b84a3a96 | 165 | mp->m_qflags &= ~flags; |
1da177e4 LT |
166 | |
167 | /* | |
168 | * Go through all the dquots of this file system and purge them, | |
b84a3a96 | 169 | * according to what was turned off. |
1da177e4 | 170 | */ |
b84a3a96 | 171 | xfs_qm_dqpurge_all(mp, dqtype); |
1da177e4 LT |
172 | |
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 | */ | |
cb6edc26 DC |
184 | 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); | |
8a7b8a89 | 188 | goto out_unlock; |
cb6edc26 | 189 | } |
1da177e4 LT |
190 | |
191 | /* | |
c31ad439 | 192 | * If all quotas are completely turned off, close shop. |
1da177e4 | 193 | */ |
c31ad439 | 194 | if (mp->m_qflags == 0) { |
8a7b8a89 | 195 | mutex_unlock(&q->qi_quotaofflock); |
1da177e4 | 196 | xfs_qm_destroy_quotainfo(mp); |
d99831ff | 197 | return 0; |
1da177e4 LT |
198 | } |
199 | ||
200 | /* | |
8a7b8a89 | 201 | * Release our quotainode references if we don't need them anymore. |
1da177e4 | 202 | */ |
8a7b8a89 CH |
203 | if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) { |
204 | IRELE(q->qi_uquotaip); | |
205 | q->qi_uquotaip = NULL; | |
1da177e4 | 206 | } |
92f8ff73 | 207 | if ((dqtype & XFS_QMOPT_GQUOTA) && q->qi_gquotaip) { |
8a7b8a89 CH |
208 | IRELE(q->qi_gquotaip); |
209 | q->qi_gquotaip = NULL; | |
1da177e4 | 210 | } |
92f8ff73 CS |
211 | if ((dqtype & XFS_QMOPT_PQUOTA) && q->qi_pquotaip) { |
212 | IRELE(q->qi_pquotaip); | |
213 | q->qi_pquotaip = NULL; | |
214 | } | |
1da177e4 | 215 | |
8a7b8a89 CH |
216 | out_unlock: |
217 | mutex_unlock(&q->qi_quotaofflock); | |
218 | return error; | |
1da177e4 LT |
219 | } |
220 | ||
5d18898b CH |
221 | STATIC int |
222 | xfs_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 | ||
253f4911 | 239 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp); |
5d18898b | 240 | if (error) { |
5d18898b CH |
241 | xfs_iunlock(ip, XFS_IOLOCK_EXCL); |
242 | goto out_put; | |
243 | } | |
244 | ||
245 | xfs_ilock(ip, XFS_ILOCK_EXCL); | |
ddc3415a | 246 | xfs_trans_ijoin(tp, ip, 0); |
5d18898b | 247 | |
673e8e59 | 248 | ip->i_d.di_size = 0; |
673e8e59 CH |
249 | xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); |
250 | ||
251 | error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0); | |
5d18898b | 252 | if (error) { |
4906e215 | 253 | xfs_trans_cancel(tp); |
5d18898b CH |
254 | goto out_unlock; |
255 | } | |
256 | ||
673e8e59 CH |
257 | ASSERT(ip->i_d.di_nextents == 0); |
258 | ||
dcd79a14 | 259 | xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG); |
70393313 | 260 | error = xfs_trans_commit(tp); |
5d18898b CH |
261 | |
262 | out_unlock: | |
263 | xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL); | |
264 | out_put: | |
265 | IRELE(ip); | |
266 | return error; | |
267 | } | |
268 | ||
fcafb71b | 269 | int |
1da177e4 LT |
270 | xfs_qm_scall_trunc_qfiles( |
271 | xfs_mount_t *mp, | |
272 | uint flags) | |
273 | { | |
2451337d | 274 | int error = -EINVAL; |
1da177e4 | 275 | |
f58522c5 ES |
276 | if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0 || |
277 | (flags & ~XFS_DQ_ALLTYPES)) { | |
08e96e1a | 278 | xfs_debug(mp, "%s: flags=%x m_qflags=%x", |
8221112b | 279 | __func__, flags, mp->m_qflags); |
2451337d | 280 | return -EINVAL; |
1da177e4 LT |
281 | } |
282 | ||
c61a9e39 | 283 | if (flags & XFS_DQ_USER) { |
5d18898b | 284 | error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino); |
c61a9e39 JL |
285 | 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 | } | |
d892d586 | 293 | if (flags & XFS_DQ_PROJ) |
c61a9e39 | 294 | error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_pquotino); |
1da177e4 | 295 | |
c61a9e39 | 296 | return error; |
1da177e4 LT |
297 | } |
298 | ||
1da177e4 LT |
299 | /* |
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 | */ | |
fcafb71b | 304 | int |
1da177e4 LT |
305 | xfs_qm_scall_quotaon( |
306 | xfs_mount_t *mp, | |
307 | uint flags) | |
308 | { | |
309 | int error; | |
1da177e4 | 310 | uint qf; |
1da177e4 | 311 | |
1da177e4 LT |
312 | flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD); |
313 | /* | |
314 | * Switching on quota accounting must be done at mount time. | |
315 | */ | |
1da177e4 LT |
316 | flags &= ~(XFS_ALL_QUOTA_ACCT); |
317 | ||
1da177e4 | 318 | if (flags == 0) { |
08e96e1a | 319 | xfs_debug(mp, "%s: zero flags, m_qflags=%x", |
8221112b | 320 | __func__, mp->m_qflags); |
2451337d | 321 | return -EINVAL; |
1da177e4 LT |
322 | } |
323 | ||
1da177e4 LT |
324 | /* |
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 | */ | |
fbf64b3d | 329 | if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 && |
83e782e1 | 330 | (flags & XFS_UQUOTA_ENFD)) || |
fbf64b3d | 331 | ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 && |
83e782e1 | 332 | (flags & XFS_GQUOTA_ENFD)) || |
fbf64b3d | 333 | ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 && |
83e782e1 | 334 | (flags & XFS_PQUOTA_ENFD))) { |
8221112b | 335 | xfs_debug(mp, |
08e96e1a | 336 | "%s: Can't enforce without acct, flags=%x sbflags=%x", |
8221112b | 337 | __func__, flags, mp->m_sb.sb_qflags); |
2451337d | 338 | return -EINVAL; |
1da177e4 LT |
339 | } |
340 | /* | |
25985edc | 341 | * If everything's up to-date incore, then don't waste time. |
1da177e4 LT |
342 | */ |
343 | if ((mp->m_qflags & flags) == flags) | |
2451337d | 344 | return -EEXIST; |
1da177e4 LT |
345 | |
346 | /* | |
347 | * Change sb_qflags on disk but not incore mp->qflags | |
348 | * if this is the root filesystem. | |
349 | */ | |
3685c2a1 | 350 | spin_lock(&mp->m_sb_lock); |
1da177e4 LT |
351 | qf = mp->m_sb.sb_qflags; |
352 | mp->m_sb.sb_qflags = qf | flags; | |
3685c2a1 | 353 | spin_unlock(&mp->m_sb_lock); |
1da177e4 LT |
354 | |
355 | /* | |
356 | * There's nothing to change if it's the same. | |
357 | */ | |
4d11a402 | 358 | if ((qf & flags) == flags) |
2451337d | 359 | return -EEXIST; |
1da177e4 | 360 | |
61e63ecb DC |
361 | error = xfs_sync_sb(mp, false); |
362 | if (error) | |
d99831ff | 363 | return error; |
1da177e4 LT |
364 | /* |
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)) || | |
c8ad20ff NS |
369 | ((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) != |
370 | (mp->m_qflags & XFS_PQUOTA_ACCT)) || | |
371 | ((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) != | |
fbf64b3d | 372 | (mp->m_qflags & XFS_GQUOTA_ACCT))) |
d99831ff | 373 | return 0; |
1da177e4 LT |
374 | |
375 | if (! XFS_IS_QUOTA_RUNNING(mp)) | |
2451337d | 376 | return -ESRCH; |
1da177e4 LT |
377 | |
378 | /* | |
379 | * Switch on quota enforcement in core. | |
380 | */ | |
8a7b8a89 | 381 | mutex_lock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 | 382 | mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD); |
8a7b8a89 | 383 | mutex_unlock(&mp->m_quotainfo->qi_quotaofflock); |
1da177e4 | 384 | |
d99831ff | 385 | return 0; |
1da177e4 LT |
386 | } |
387 | ||
14bf61ff JK |
388 | #define XFS_QC_MASK \ |
389 | (QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK) | |
c472b432 | 390 | |
1da177e4 LT |
391 | /* |
392 | * Adjust quota limits, and start/stop timers accordingly. | |
393 | */ | |
fcafb71b | 394 | int |
1da177e4 | 395 | xfs_qm_scall_setqlim( |
b1366451 | 396 | struct xfs_mount *mp, |
1da177e4 LT |
397 | xfs_dqid_t id, |
398 | uint type, | |
14bf61ff | 399 | struct qc_dqblk *newlim) |
1da177e4 | 400 | { |
8a7b8a89 | 401 | struct xfs_quotainfo *q = mp->m_quotainfo; |
b1366451 BF |
402 | struct xfs_disk_dquot *ddq; |
403 | struct xfs_dquot *dqp; | |
404 | struct xfs_trans *tp; | |
be607946 | 405 | struct xfs_def_quota *defq; |
1da177e4 LT |
406 | int error; |
407 | xfs_qcnt_t hard, soft; | |
408 | ||
14bf61ff | 409 | if (newlim->d_fieldmask & ~XFS_QC_MASK) |
2451337d | 410 | return -EINVAL; |
14bf61ff | 411 | if ((newlim->d_fieldmask & XFS_QC_MASK) == 0) |
c472b432 | 412 | return 0; |
1da177e4 | 413 | |
1da177e4 LT |
414 | /* |
415 | * We don't want to race with a quotaoff so take the quotaoff lock. | |
f648167f DC |
416 | * We don't hold an inode lock, so there's nothing else to stop |
417 | * a quotaoff from happening. | |
1da177e4 | 418 | */ |
8a7b8a89 | 419 | mutex_lock(&q->qi_quotaofflock); |
1da177e4 LT |
420 | |
421 | /* | |
f648167f DC |
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. | |
1da177e4 | 427 | */ |
f648167f DC |
428 | error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp); |
429 | if (error) { | |
2451337d | 430 | ASSERT(error != -ENOENT); |
8a7b8a89 | 431 | goto out_unlock; |
1da177e4 | 432 | } |
be607946 CM |
433 | |
434 | defq = xfs_get_defquota(dqp, q); | |
f648167f DC |
435 | xfs_dqunlock(dqp); |
436 | ||
253f4911 CH |
437 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_setqlim, 0, 0, 0, &tp); |
438 | if (error) | |
f648167f | 439 | goto out_rele; |
f648167f DC |
440 | |
441 | xfs_dqlock(dqp); | |
1da177e4 LT |
442 | xfs_trans_dqjoin(tp, dqp); |
443 | ddq = &dqp->q_core; | |
444 | ||
445 | /* | |
446 | * Make sure that hardlimits are >= soft limits before changing. | |
447 | */ | |
14bf61ff JK |
448 | hard = (newlim->d_fieldmask & QC_SPC_HARD) ? |
449 | (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) : | |
1149d96a | 450 | be64_to_cpu(ddq->d_blk_hardlimit); |
14bf61ff JK |
451 | soft = (newlim->d_fieldmask & QC_SPC_SOFT) ? |
452 | (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) : | |
1149d96a | 453 | be64_to_cpu(ddq->d_blk_softlimit); |
1da177e4 | 454 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
455 | ddq->d_blk_hardlimit = cpu_to_be64(hard); |
456 | ddq->d_blk_softlimit = cpu_to_be64(soft); | |
b1366451 | 457 | xfs_dquot_set_prealloc_limits(dqp); |
1da177e4 | 458 | if (id == 0) { |
be607946 CM |
459 | defq->bhardlimit = hard; |
460 | defq->bsoftlimit = soft; | |
1da177e4 LT |
461 | } |
462 | } else { | |
08e96e1a | 463 | xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft); |
1da177e4 | 464 | } |
14bf61ff JK |
465 | hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ? |
466 | (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) : | |
1149d96a | 467 | be64_to_cpu(ddq->d_rtb_hardlimit); |
14bf61ff JK |
468 | soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ? |
469 | (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) : | |
1149d96a | 470 | be64_to_cpu(ddq->d_rtb_softlimit); |
1da177e4 | 471 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
472 | ddq->d_rtb_hardlimit = cpu_to_be64(hard); |
473 | ddq->d_rtb_softlimit = cpu_to_be64(soft); | |
1da177e4 | 474 | if (id == 0) { |
be607946 CM |
475 | defq->rtbhardlimit = hard; |
476 | defq->rtbsoftlimit = soft; | |
1da177e4 LT |
477 | } |
478 | } else { | |
08e96e1a | 479 | xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft); |
1da177e4 LT |
480 | } |
481 | ||
14bf61ff | 482 | hard = (newlim->d_fieldmask & QC_INO_HARD) ? |
1da177e4 | 483 | (xfs_qcnt_t) newlim->d_ino_hardlimit : |
1149d96a | 484 | be64_to_cpu(ddq->d_ino_hardlimit); |
14bf61ff | 485 | soft = (newlim->d_fieldmask & QC_INO_SOFT) ? |
1da177e4 | 486 | (xfs_qcnt_t) newlim->d_ino_softlimit : |
1149d96a | 487 | be64_to_cpu(ddq->d_ino_softlimit); |
1da177e4 | 488 | if (hard == 0 || hard >= soft) { |
1149d96a CH |
489 | ddq->d_ino_hardlimit = cpu_to_be64(hard); |
490 | ddq->d_ino_softlimit = cpu_to_be64(soft); | |
1da177e4 | 491 | if (id == 0) { |
be607946 CM |
492 | defq->ihardlimit = hard; |
493 | defq->isoftlimit = soft; | |
1da177e4 LT |
494 | } |
495 | } else { | |
08e96e1a | 496 | xfs_debug(mp, "ihard %Ld < isoft %Ld", hard, soft); |
1da177e4 LT |
497 | } |
498 | ||
754002b4 NS |
499 | /* |
500 | * Update warnings counter(s) if requested | |
501 | */ | |
14bf61ff JK |
502 | 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); | |
754002b4 | 508 | |
1da177e4 LT |
509 | 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 | |
754002b4 NS |
514 | * soft and hard limit values (already done, above), and |
515 | * for warnings. | |
1da177e4 | 516 | */ |
14bf61ff JK |
517 | 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); | |
1da177e4 | 520 | } |
14bf61ff JK |
521 | 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); | |
1da177e4 | 524 | } |
14bf61ff JK |
525 | 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); | |
1da177e4 | 528 | } |
14bf61ff JK |
529 | 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; | |
754002b4 | 535 | } else { |
1da177e4 LT |
536 | /* |
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 | ||
70393313 | 548 | error = xfs_trans_commit(tp); |
1da177e4 | 549 | |
f648167f DC |
550 | out_rele: |
551 | xfs_qm_dqrele(dqp); | |
552 | out_unlock: | |
8a7b8a89 | 553 | mutex_unlock(&q->qi_quotaofflock); |
e5720eec | 554 | return error; |
1da177e4 LT |
555 | } |
556 | ||
1da177e4 LT |
557 | STATIC int |
558 | xfs_qm_log_quotaoff_end( | |
559 | xfs_mount_t *mp, | |
560 | xfs_qoff_logitem_t *startqoff, | |
561 | uint flags) | |
562 | { | |
c8ad20ff | 563 | xfs_trans_t *tp; |
1da177e4 | 564 | int error; |
c8ad20ff | 565 | xfs_qoff_logitem_t *qoffi; |
1da177e4 | 566 | |
253f4911 CH |
567 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_equotaoff, 0, 0, 0, &tp); |
568 | if (error) | |
d99831ff | 569 | return error; |
1da177e4 LT |
570 | |
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); | |
70393313 | 581 | return xfs_trans_commit(tp); |
1da177e4 LT |
582 | } |
583 | ||
584 | ||
585 | STATIC int | |
586 | xfs_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; | |
5d45ee1b BF |
593 | xfs_qoff_logitem_t *qoffi; |
594 | ||
595 | *qoffstartp = NULL; | |
1da177e4 | 596 | |
253f4911 CH |
597 | error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_quotaoff, 0, 0, 0, &tp); |
598 | if (error) | |
5d45ee1b | 599 | goto out; |
1da177e4 LT |
600 | |
601 | qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT); | |
602 | xfs_trans_log_quotaoff_item(tp, qoffi); | |
603 | ||
3685c2a1 | 604 | spin_lock(&mp->m_sb_lock); |
1da177e4 | 605 | mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL; |
3685c2a1 | 606 | spin_unlock(&mp->m_sb_lock); |
1da177e4 | 607 | |
61e63ecb | 608 | xfs_log_sb(tp); |
1da177e4 LT |
609 | |
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); | |
70393313 | 616 | error = xfs_trans_commit(tp); |
5d45ee1b BF |
617 | if (error) |
618 | goto out; | |
1da177e4 | 619 | |
1da177e4 | 620 | *qoffstartp = qoffi; |
5d45ee1b | 621 | out: |
d99831ff | 622 | return error; |
1da177e4 LT |
623 | } |
624 | ||
625 | ||
18535a7e CH |
626 | int |
627 | xfs_qm_scall_getquota( | |
628 | struct xfs_mount *mp, | |
296c24e2 | 629 | xfs_dqid_t *id, |
18535a7e | 630 | uint type, |
296c24e2 ES |
631 | struct qc_dqblk *dst, |
632 | uint dqget_flags) | |
1da177e4 | 633 | { |
18535a7e CH |
634 | 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 | */ | |
296c24e2 | 642 | error = xfs_qm_dqget(mp, NULL, *id, type, dqget_flags, &dqp); |
18535a7e CH |
643 | 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)) { | |
2451337d | 651 | error = -ENOENT; |
18535a7e CH |
652 | goto out_put; |
653 | } | |
654 | ||
296c24e2 ES |
655 | /* Fill in the ID we actually read from disk */ |
656 | *id = be32_to_cpu(dqp->q_core.d_id); | |
657 | ||
1da177e4 | 658 | memset(dst, 0, sizeof(*dst)); |
14bf61ff JK |
659 | 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)); | |
18535a7e CH |
663 | 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); | |
14bf61ff JK |
665 | 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); | |
1da177e4 LT |
678 | |
679 | /* | |
680 | * Internally, we don't reset all the timers when quota enforcement | |
c41564b5 | 681 | * gets turned off. No need to confuse the user level code, |
1da177e4 LT |
682 | * so return zeroes in that case. |
683 | */ | |
83e782e1 CS |
684 | 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)) { | |
14bf61ff JK |
690 | dst->d_spc_timer = 0; |
691 | dst->d_ino_timer = 0; | |
692 | dst->d_rt_spc_timer = 0; | |
1da177e4 LT |
693 | } |
694 | ||
695 | #ifdef DEBUG | |
14bf61ff JK |
696 | 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)) && | |
296c24e2 | 699 | *id != 0) { |
14bf61ff JK |
700 | if ((dst->d_space > dst->d_spc_softlimit) && |
701 | (dst->d_spc_softlimit > 0)) { | |
702 | ASSERT(dst->d_spc_timer != 0); | |
1da177e4 | 703 | } |
14bf61ff | 704 | if ((dst->d_ino_count > dst->d_ino_softlimit) && |
1da177e4 | 705 | (dst->d_ino_softlimit > 0)) { |
14bf61ff | 706 | ASSERT(dst->d_ino_timer != 0); |
1da177e4 LT |
707 | } |
708 | } | |
709 | #endif | |
18535a7e CH |
710 | out_put: |
711 | xfs_qm_dqput(dqp); | |
712 | return error; | |
1da177e4 LT |
713 | } |
714 | ||
1da177e4 | 715 | |
fe588ed3 CH |
716 | STATIC int |
717 | xfs_dqrele_inode( | |
718 | struct xfs_inode *ip, | |
a454f742 BF |
719 | int flags, |
720 | void *args) | |
1da177e4 | 721 | { |
fe588ed3 | 722 | /* skip quota inodes */ |
8a7b8a89 | 723 | if (ip == ip->i_mount->m_quotainfo->qi_uquotaip || |
92f8ff73 CS |
724 | ip == ip->i_mount->m_quotainfo->qi_gquotaip || |
725 | ip == ip->i_mount->m_quotainfo->qi_pquotaip) { | |
fe588ed3 CH |
726 | ASSERT(ip->i_udquot == NULL); |
727 | ASSERT(ip->i_gdquot == NULL); | |
92f8ff73 | 728 | ASSERT(ip->i_pdquot == NULL); |
fe588ed3 CH |
729 | return 0; |
730 | } | |
cb4f0d1d | 731 | |
fe588ed3 CH |
732 | 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 | } | |
92f8ff73 | 737 | if ((flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) { |
fe588ed3 CH |
738 | xfs_qm_dqrele(ip->i_gdquot); |
739 | ip->i_gdquot = NULL; | |
740 | } | |
92f8ff73 CS |
741 | if ((flags & XFS_PQUOTA_ACCT) && ip->i_pdquot) { |
742 | xfs_qm_dqrele(ip->i_pdquot); | |
743 | ip->i_pdquot = NULL; | |
744 | } | |
f2d67614 | 745 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
fe588ed3 | 746 | return 0; |
5b4d89ae DC |
747 | } |
748 | ||
fe588ed3 | 749 | |
5b4d89ae DC |
750 | /* |
751 | * Go thru all the inodes in the file system, releasing their dquots. | |
fe588ed3 | 752 | * |
5b4d89ae | 753 | * Note that the mount structure gets modified to indicate that quotas are off |
fe588ed3 | 754 | * AFTER this, in the case of quotaoff. |
5b4d89ae DC |
755 | */ |
756 | void | |
757 | xfs_qm_dqrele_all_inodes( | |
758 | struct xfs_mount *mp, | |
759 | uint flags) | |
760 | { | |
5b4d89ae | 761 | ASSERT(mp->m_quotainfo); |
a454f742 | 762 | xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, NULL); |
1da177e4 | 763 | } |