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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
4ce3121f NS |
3 | * Copyright (c) 2000-2002 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 | 5 | */ |
1da177e4 LT |
6 | #include "xfs.h" |
7 | #include "xfs_fs.h" | |
70a9883c | 8 | #include "xfs_shared.h" |
239880ef DC |
9 | #include "xfs_format.h" |
10 | #include "xfs_log_format.h" | |
11 | #include "xfs_trans_resv.h" | |
1da177e4 | 12 | #include "xfs_mount.h" |
1da177e4 | 13 | #include "xfs_inode.h" |
239880ef | 14 | #include "xfs_trans.h" |
1da177e4 | 15 | #include "xfs_trans_priv.h" |
a4fbe6ab | 16 | #include "xfs_quota.h" |
1da177e4 LT |
17 | #include "xfs_qm.h" |
18 | ||
19 | STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *); | |
20 | ||
21 | /* | |
22 | * Add the locked dquot to the transaction. | |
23 | * The dquot must be locked, and it cannot be associated with any | |
24 | * transaction. | |
25 | */ | |
26 | void | |
27 | xfs_trans_dqjoin( | |
aefe69a4 PR |
28 | struct xfs_trans *tp, |
29 | struct xfs_dquot *dqp) | |
1da177e4 | 30 | { |
1da177e4 | 31 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
e98c414f | 32 | ASSERT(dqp->q_logitem.qli_dquot == dqp); |
1da177e4 LT |
33 | |
34 | /* | |
35 | * Get a log_item_desc to point at the new item. | |
36 | */ | |
e98c414f | 37 | xfs_trans_add_item(tp, &dqp->q_logitem.qli_item); |
1da177e4 LT |
38 | } |
39 | ||
1da177e4 LT |
40 | /* |
41 | * This is called to mark the dquot as needing | |
42 | * to be logged when the transaction is committed. The dquot must | |
43 | * already be associated with the given transaction. | |
44 | * Note that it marks the entire transaction as dirty. In the ordinary | |
45 | * case, this gets called via xfs_trans_commit, after the transaction | |
46 | * is already dirty. However, there's nothing stop this from getting | |
47 | * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY | |
48 | * flag. | |
49 | */ | |
50 | void | |
51 | xfs_trans_log_dquot( | |
aefe69a4 PR |
52 | struct xfs_trans *tp, |
53 | struct xfs_dquot *dqp) | |
1da177e4 | 54 | { |
1da177e4 LT |
55 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
56 | ||
1da177e4 | 57 | tp->t_flags |= XFS_TRANS_DIRTY; |
e6631f85 | 58 | set_bit(XFS_LI_DIRTY, &dqp->q_logitem.qli_item.li_flags); |
1da177e4 LT |
59 | } |
60 | ||
61 | /* | |
62 | * Carry forward whatever is left of the quota blk reservation to | |
63 | * the spanky new transaction | |
64 | */ | |
7d095257 | 65 | void |
1da177e4 | 66 | xfs_trans_dup_dqinfo( |
078f4a7d DW |
67 | struct xfs_trans *otp, |
68 | struct xfs_trans *ntp) | |
1da177e4 | 69 | { |
078f4a7d DW |
70 | struct xfs_dqtrx *oq, *nq; |
71 | int i, j; | |
72 | struct xfs_dqtrx *oqa, *nqa; | |
73 | uint64_t blk_res_used; | |
1da177e4 LT |
74 | |
75 | if (!otp->t_dqinfo) | |
76 | return; | |
77 | ||
78 | xfs_trans_alloc_dqinfo(ntp); | |
1da177e4 LT |
79 | |
80 | /* | |
81 | * Because the quota blk reservation is carried forward, | |
82 | * it is also necessary to carry forward the DQ_DIRTY flag. | |
83 | */ | |
339e4f66 | 84 | if (otp->t_flags & XFS_TRANS_DQ_DIRTY) |
1da177e4 LT |
85 | ntp->t_flags |= XFS_TRANS_DQ_DIRTY; |
86 | ||
0e6436d9 CS |
87 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
88 | oqa = otp->t_dqinfo->dqs[j]; | |
89 | nqa = ntp->t_dqinfo->dqs[j]; | |
1da177e4 | 90 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
7f884dc1 BF |
91 | blk_res_used = 0; |
92 | ||
1da177e4 LT |
93 | if (oqa[i].qt_dquot == NULL) |
94 | break; | |
95 | oq = &oqa[i]; | |
96 | nq = &nqa[i]; | |
97 | ||
7f884dc1 BF |
98 | if (oq->qt_blk_res && oq->qt_bcount_delta > 0) |
99 | blk_res_used = oq->qt_bcount_delta; | |
100 | ||
1da177e4 LT |
101 | nq->qt_dquot = oq->qt_dquot; |
102 | nq->qt_bcount_delta = nq->qt_icount_delta = 0; | |
103 | nq->qt_rtbcount_delta = 0; | |
104 | ||
105 | /* | |
106 | * Transfer whatever is left of the reservations. | |
107 | */ | |
7f884dc1 BF |
108 | nq->qt_blk_res = oq->qt_blk_res - blk_res_used; |
109 | oq->qt_blk_res = blk_res_used; | |
1da177e4 LT |
110 | |
111 | nq->qt_rtblk_res = oq->qt_rtblk_res - | |
112 | oq->qt_rtblk_res_used; | |
113 | oq->qt_rtblk_res = oq->qt_rtblk_res_used; | |
114 | ||
115 | nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used; | |
116 | oq->qt_ino_res = oq->qt_ino_res_used; | |
117 | ||
118 | } | |
1da177e4 LT |
119 | } |
120 | } | |
121 | ||
122 | /* | |
123 | * Wrap around mod_dquot to account for both user and group quotas. | |
124 | */ | |
7d095257 | 125 | void |
1da177e4 LT |
126 | xfs_trans_mod_dquot_byino( |
127 | xfs_trans_t *tp, | |
128 | xfs_inode_t *ip, | |
129 | uint field, | |
903b1fc2 | 130 | int64_t delta) |
1da177e4 | 131 | { |
7d095257 | 132 | xfs_mount_t *mp = tp->t_mountp; |
1da177e4 | 133 | |
7d095257 CH |
134 | if (!XFS_IS_QUOTA_RUNNING(mp) || |
135 | !XFS_IS_QUOTA_ON(mp) || | |
9cad19d2 | 136 | xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
1da177e4 LT |
137 | return; |
138 | ||
139 | if (tp->t_dqinfo == NULL) | |
140 | xfs_trans_alloc_dqinfo(tp); | |
141 | ||
c8ad20ff | 142 | if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) |
1da177e4 | 143 | (void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta); |
92f8ff73 | 144 | if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot) |
1da177e4 | 145 | (void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta); |
92f8ff73 CS |
146 | if (XFS_IS_PQUOTA_ON(mp) && ip->i_pdquot) |
147 | (void) xfs_trans_mod_dquot(tp, ip->i_pdquot, field, delta); | |
1da177e4 LT |
148 | } |
149 | ||
113a5683 | 150 | STATIC struct xfs_dqtrx * |
1da177e4 | 151 | xfs_trans_get_dqtrx( |
113a5683 CS |
152 | struct xfs_trans *tp, |
153 | struct xfs_dquot *dqp) | |
1da177e4 | 154 | { |
113a5683 CS |
155 | int i; |
156 | struct xfs_dqtrx *qa; | |
1da177e4 | 157 | |
0e6436d9 CS |
158 | if (XFS_QM_ISUDQ(dqp)) |
159 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_USR]; | |
92f8ff73 | 160 | else if (XFS_QM_ISGDQ(dqp)) |
0e6436d9 | 161 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_GRP]; |
92f8ff73 CS |
162 | else if (XFS_QM_ISPDQ(dqp)) |
163 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_PRJ]; | |
164 | else | |
165 | return NULL; | |
1da177e4 | 166 | |
191f8488 | 167 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
1da177e4 | 168 | if (qa[i].qt_dquot == NULL || |
191f8488 CH |
169 | qa[i].qt_dquot == dqp) |
170 | return &qa[i]; | |
1da177e4 LT |
171 | } |
172 | ||
191f8488 | 173 | return NULL; |
1da177e4 LT |
174 | } |
175 | ||
176 | /* | |
177 | * Make the changes in the transaction structure. | |
178 | * The moral equivalent to xfs_trans_mod_sb(). | |
179 | * We don't touch any fields in the dquot, so we don't care | |
180 | * if it's locked or not (most of the time it won't be). | |
181 | */ | |
182 | void | |
183 | xfs_trans_mod_dquot( | |
078f4a7d DW |
184 | struct xfs_trans *tp, |
185 | struct xfs_dquot *dqp, | |
186 | uint field, | |
187 | int64_t delta) | |
1da177e4 | 188 | { |
078f4a7d | 189 | struct xfs_dqtrx *qtrx; |
1da177e4 LT |
190 | |
191 | ASSERT(tp); | |
7d095257 | 192 | ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp)); |
1da177e4 LT |
193 | qtrx = NULL; |
194 | ||
195 | if (tp->t_dqinfo == NULL) | |
196 | xfs_trans_alloc_dqinfo(tp); | |
197 | /* | |
198 | * Find either the first free slot or the slot that belongs | |
199 | * to this dquot. | |
200 | */ | |
201 | qtrx = xfs_trans_get_dqtrx(tp, dqp); | |
202 | ASSERT(qtrx); | |
203 | if (qtrx->qt_dquot == NULL) | |
204 | qtrx->qt_dquot = dqp; | |
205 | ||
206 | switch (field) { | |
207 | ||
208 | /* | |
209 | * regular disk blk reservation | |
210 | */ | |
211 | case XFS_TRANS_DQ_RES_BLKS: | |
903b1fc2 | 212 | qtrx->qt_blk_res += delta; |
1da177e4 LT |
213 | break; |
214 | ||
215 | /* | |
216 | * inode reservation | |
217 | */ | |
218 | case XFS_TRANS_DQ_RES_INOS: | |
903b1fc2 | 219 | qtrx->qt_ino_res += delta; |
1da177e4 LT |
220 | break; |
221 | ||
222 | /* | |
223 | * disk blocks used. | |
224 | */ | |
225 | case XFS_TRANS_DQ_BCOUNT: | |
1da177e4 LT |
226 | qtrx->qt_bcount_delta += delta; |
227 | break; | |
228 | ||
229 | case XFS_TRANS_DQ_DELBCOUNT: | |
230 | qtrx->qt_delbcnt_delta += delta; | |
231 | break; | |
232 | ||
233 | /* | |
234 | * Inode Count | |
235 | */ | |
236 | case XFS_TRANS_DQ_ICOUNT: | |
237 | if (qtrx->qt_ino_res && delta > 0) { | |
903b1fc2 | 238 | qtrx->qt_ino_res_used += delta; |
1da177e4 LT |
239 | ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used); |
240 | } | |
241 | qtrx->qt_icount_delta += delta; | |
242 | break; | |
243 | ||
244 | /* | |
245 | * rtblk reservation | |
246 | */ | |
247 | case XFS_TRANS_DQ_RES_RTBLKS: | |
903b1fc2 | 248 | qtrx->qt_rtblk_res += delta; |
1da177e4 LT |
249 | break; |
250 | ||
251 | /* | |
252 | * rtblk count | |
253 | */ | |
254 | case XFS_TRANS_DQ_RTBCOUNT: | |
255 | if (qtrx->qt_rtblk_res && delta > 0) { | |
903b1fc2 | 256 | qtrx->qt_rtblk_res_used += delta; |
1da177e4 LT |
257 | ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used); |
258 | } | |
259 | qtrx->qt_rtbcount_delta += delta; | |
260 | break; | |
261 | ||
262 | case XFS_TRANS_DQ_DELRTBCOUNT: | |
263 | qtrx->qt_delrtb_delta += delta; | |
264 | break; | |
265 | ||
266 | default: | |
267 | ASSERT(0); | |
268 | } | |
269 | tp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
270 | } | |
271 | ||
272 | ||
273 | /* | |
b0a9dab7 DC |
274 | * Given an array of dqtrx structures, lock all the dquots associated and join |
275 | * them to the transaction, provided they have been modified. We know that the | |
10f73d27 CH |
276 | * highest number of dquots of one type - usr, grp and prj - involved in a |
277 | * transaction is 3 so we don't need to make this very generic. | |
1da177e4 LT |
278 | */ |
279 | STATIC void | |
280 | xfs_trans_dqlockedjoin( | |
078f4a7d DW |
281 | struct xfs_trans *tp, |
282 | struct xfs_dqtrx *q) | |
1da177e4 LT |
283 | { |
284 | ASSERT(q[0].qt_dquot != NULL); | |
285 | if (q[1].qt_dquot == NULL) { | |
286 | xfs_dqlock(q[0].qt_dquot); | |
287 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
288 | } else { | |
289 | ASSERT(XFS_QM_TRANS_MAXDQS == 2); | |
290 | xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot); | |
291 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
292 | xfs_trans_dqjoin(tp, q[1].qt_dquot); | |
293 | } | |
294 | } | |
295 | ||
296 | ||
297 | /* | |
298 | * Called by xfs_trans_commit() and similar in spirit to | |
299 | * xfs_trans_apply_sb_deltas(). | |
300 | * Go thru all the dquots belonging to this transaction and modify the | |
301 | * INCORE dquot to reflect the actual usages. | |
302 | * Unreserve just the reservations done by this transaction. | |
303 | * dquot is still left locked at exit. | |
304 | */ | |
7d095257 | 305 | void |
1da177e4 | 306 | xfs_trans_apply_dquot_deltas( |
4b6eae2e | 307 | struct xfs_trans *tp) |
1da177e4 LT |
308 | { |
309 | int i, j; | |
4b6eae2e BF |
310 | struct xfs_dquot *dqp; |
311 | struct xfs_dqtrx *qtrx, *qa; | |
312 | struct xfs_disk_dquot *d; | |
903b1fc2 DW |
313 | int64_t totalbdelta; |
314 | int64_t totalrtbdelta; | |
1da177e4 | 315 | |
7d095257 | 316 | if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY)) |
1da177e4 LT |
317 | return; |
318 | ||
319 | ASSERT(tp->t_dqinfo); | |
0e6436d9 CS |
320 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
321 | qa = tp->t_dqinfo->dqs[j]; | |
322 | if (qa[0].qt_dquot == NULL) | |
1da177e4 | 323 | continue; |
1da177e4 LT |
324 | |
325 | /* | |
326 | * Lock all of the dquots and join them to the transaction. | |
327 | */ | |
328 | xfs_trans_dqlockedjoin(tp, qa); | |
329 | ||
330 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { | |
331 | qtrx = &qa[i]; | |
332 | /* | |
333 | * The array of dquots is filled | |
334 | * sequentially, not sparsely. | |
335 | */ | |
336 | if ((dqp = qtrx->qt_dquot) == NULL) | |
337 | break; | |
338 | ||
339 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); | |
1da177e4 LT |
340 | |
341 | /* | |
342 | * adjust the actual number of blocks used | |
343 | */ | |
344 | d = &dqp->q_core; | |
345 | ||
346 | /* | |
347 | * The issue here is - sometimes we don't make a blkquota | |
348 | * reservation intentionally to be fair to users | |
349 | * (when the amount is small). On the other hand, | |
350 | * delayed allocs do make reservations, but that's | |
351 | * outside of a transaction, so we have no | |
352 | * idea how much was really reserved. | |
353 | * So, here we've accumulated delayed allocation blks and | |
354 | * non-delay blks. The assumption is that the | |
355 | * delayed ones are always reserved (outside of a | |
356 | * transaction), and the others may or may not have | |
357 | * quota reservations. | |
358 | */ | |
359 | totalbdelta = qtrx->qt_bcount_delta + | |
360 | qtrx->qt_delbcnt_delta; | |
361 | totalrtbdelta = qtrx->qt_rtbcount_delta + | |
362 | qtrx->qt_delrtb_delta; | |
ea15ab3c | 363 | #ifdef DEBUG |
1da177e4 | 364 | if (totalbdelta < 0) |
1149d96a | 365 | ASSERT(be64_to_cpu(d->d_bcount) >= |
ea15ab3c | 366 | -totalbdelta); |
1da177e4 LT |
367 | |
368 | if (totalrtbdelta < 0) | |
1149d96a | 369 | ASSERT(be64_to_cpu(d->d_rtbcount) >= |
ea15ab3c | 370 | -totalrtbdelta); |
1da177e4 LT |
371 | |
372 | if (qtrx->qt_icount_delta < 0) | |
1149d96a | 373 | ASSERT(be64_to_cpu(d->d_icount) >= |
ea15ab3c | 374 | -qtrx->qt_icount_delta); |
1da177e4 LT |
375 | #endif |
376 | if (totalbdelta) | |
413d57c9 | 377 | be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta); |
1da177e4 LT |
378 | |
379 | if (qtrx->qt_icount_delta) | |
413d57c9 | 380 | be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta); |
1da177e4 LT |
381 | |
382 | if (totalrtbdelta) | |
413d57c9 | 383 | be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta); |
1da177e4 LT |
384 | |
385 | /* | |
386 | * Get any default limits in use. | |
387 | * Start/reset the timer(s) if needed. | |
388 | */ | |
389 | if (d->d_id) { | |
4b6eae2e | 390 | xfs_qm_adjust_dqlimits(tp->t_mountp, dqp); |
1da177e4 LT |
391 | xfs_qm_adjust_dqtimers(tp->t_mountp, d); |
392 | } | |
393 | ||
394 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
395 | /* | |
396 | * add this to the list of items to get logged | |
397 | */ | |
398 | xfs_trans_log_dquot(tp, dqp); | |
399 | /* | |
400 | * Take off what's left of the original reservation. | |
401 | * In case of delayed allocations, there's no | |
402 | * reservation that a transaction structure knows of. | |
403 | */ | |
404 | if (qtrx->qt_blk_res != 0) { | |
903b1fc2 | 405 | uint64_t blk_res_used = 0; |
7f884dc1 BF |
406 | |
407 | if (qtrx->qt_bcount_delta > 0) | |
408 | blk_res_used = qtrx->qt_bcount_delta; | |
409 | ||
410 | if (qtrx->qt_blk_res != blk_res_used) { | |
411 | if (qtrx->qt_blk_res > blk_res_used) | |
1da177e4 LT |
412 | dqp->q_res_bcount -= (xfs_qcnt_t) |
413 | (qtrx->qt_blk_res - | |
7f884dc1 | 414 | blk_res_used); |
1da177e4 LT |
415 | else |
416 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
7f884dc1 | 417 | (blk_res_used - |
1da177e4 LT |
418 | qtrx->qt_blk_res); |
419 | } | |
420 | } else { | |
421 | /* | |
422 | * These blks were never reserved, either inside | |
423 | * a transaction or outside one (in a delayed | |
424 | * allocation). Also, this isn't always a | |
425 | * negative number since we sometimes | |
426 | * deliberately skip quota reservations. | |
427 | */ | |
428 | if (qtrx->qt_bcount_delta) { | |
429 | dqp->q_res_bcount += | |
430 | (xfs_qcnt_t)qtrx->qt_bcount_delta; | |
431 | } | |
432 | } | |
433 | /* | |
434 | * Adjust the RT reservation. | |
435 | */ | |
436 | if (qtrx->qt_rtblk_res != 0) { | |
06d10dd9 | 437 | if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) { |
1da177e4 LT |
438 | if (qtrx->qt_rtblk_res > |
439 | qtrx->qt_rtblk_res_used) | |
440 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
441 | (qtrx->qt_rtblk_res - | |
442 | qtrx->qt_rtblk_res_used); | |
443 | else | |
444 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
445 | (qtrx->qt_rtblk_res_used - | |
446 | qtrx->qt_rtblk_res); | |
447 | } | |
448 | } else { | |
449 | if (qtrx->qt_rtbcount_delta) | |
450 | dqp->q_res_rtbcount += | |
451 | (xfs_qcnt_t)qtrx->qt_rtbcount_delta; | |
452 | } | |
453 | ||
454 | /* | |
455 | * Adjust the inode reservation. | |
456 | */ | |
457 | if (qtrx->qt_ino_res != 0) { | |
458 | ASSERT(qtrx->qt_ino_res >= | |
459 | qtrx->qt_ino_res_used); | |
460 | if (qtrx->qt_ino_res > qtrx->qt_ino_res_used) | |
461 | dqp->q_res_icount -= (xfs_qcnt_t) | |
462 | (qtrx->qt_ino_res - | |
463 | qtrx->qt_ino_res_used); | |
464 | } else { | |
465 | if (qtrx->qt_icount_delta) | |
466 | dqp->q_res_icount += | |
467 | (xfs_qcnt_t)qtrx->qt_icount_delta; | |
468 | } | |
469 | ||
1da177e4 | 470 | ASSERT(dqp->q_res_bcount >= |
1149d96a | 471 | be64_to_cpu(dqp->q_core.d_bcount)); |
1da177e4 | 472 | ASSERT(dqp->q_res_icount >= |
1149d96a | 473 | be64_to_cpu(dqp->q_core.d_icount)); |
1da177e4 | 474 | ASSERT(dqp->q_res_rtbcount >= |
1149d96a | 475 | be64_to_cpu(dqp->q_core.d_rtbcount)); |
1da177e4 | 476 | } |
1da177e4 LT |
477 | } |
478 | } | |
479 | ||
480 | /* | |
481 | * Release the reservations, and adjust the dquots accordingly. | |
482 | * This is called only when the transaction is being aborted. If by | |
483 | * any chance we have done dquot modifications incore (ie. deltas) already, | |
484 | * we simply throw those away, since that's the expected behavior | |
485 | * when a transaction is curtailed without a commit. | |
486 | */ | |
7d095257 | 487 | void |
1da177e4 | 488 | xfs_trans_unreserve_and_mod_dquots( |
aefe69a4 | 489 | struct xfs_trans *tp) |
1da177e4 LT |
490 | { |
491 | int i, j; | |
aefe69a4 | 492 | struct xfs_dquot *dqp; |
078f4a7d | 493 | struct xfs_dqtrx *qtrx, *qa; |
aefe69a4 | 494 | bool locked; |
1da177e4 LT |
495 | |
496 | if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY)) | |
497 | return; | |
498 | ||
0e6436d9 CS |
499 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
500 | qa = tp->t_dqinfo->dqs[j]; | |
1da177e4 | 501 | |
1da177e4 LT |
502 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
503 | qtrx = &qa[i]; | |
504 | /* | |
505 | * We assume that the array of dquots is filled | |
506 | * sequentially, not sparsely. | |
507 | */ | |
508 | if ((dqp = qtrx->qt_dquot) == NULL) | |
509 | break; | |
510 | /* | |
511 | * Unreserve the original reservation. We don't care | |
512 | * about the number of blocks used field, or deltas. | |
513 | * Also we don't bother to zero the fields. | |
514 | */ | |
667a9291 | 515 | locked = false; |
1da177e4 LT |
516 | if (qtrx->qt_blk_res) { |
517 | xfs_dqlock(dqp); | |
667a9291 | 518 | locked = true; |
1da177e4 LT |
519 | dqp->q_res_bcount -= |
520 | (xfs_qcnt_t)qtrx->qt_blk_res; | |
521 | } | |
522 | if (qtrx->qt_ino_res) { | |
523 | if (!locked) { | |
524 | xfs_dqlock(dqp); | |
667a9291 | 525 | locked = true; |
1da177e4 LT |
526 | } |
527 | dqp->q_res_icount -= | |
528 | (xfs_qcnt_t)qtrx->qt_ino_res; | |
529 | } | |
530 | ||
531 | if (qtrx->qt_rtblk_res) { | |
532 | if (!locked) { | |
533 | xfs_dqlock(dqp); | |
667a9291 | 534 | locked = true; |
1da177e4 LT |
535 | } |
536 | dqp->q_res_rtbcount -= | |
537 | (xfs_qcnt_t)qtrx->qt_rtblk_res; | |
538 | } | |
539 | if (locked) | |
540 | xfs_dqunlock(dqp); | |
541 | ||
542 | } | |
1da177e4 LT |
543 | } |
544 | } | |
545 | ||
a210c1aa CH |
546 | STATIC void |
547 | xfs_quota_warn( | |
548 | struct xfs_mount *mp, | |
549 | struct xfs_dquot *dqp, | |
550 | int type) | |
551 | { | |
ffc671f1 MY |
552 | enum quota_type qtype; |
553 | ||
a210c1aa | 554 | if (dqp->dq_flags & XFS_DQ_PROJ) |
ffc671f1 MY |
555 | qtype = PRJQUOTA; |
556 | else if (dqp->dq_flags & XFS_DQ_USER) | |
557 | qtype = USRQUOTA; | |
558 | else | |
559 | qtype = GRPQUOTA; | |
560 | ||
561 | quota_send_warning(make_kqid(&init_user_ns, qtype, | |
431f1974 EB |
562 | be32_to_cpu(dqp->q_core.d_id)), |
563 | mp->m_super->s_dev, type); | |
a210c1aa CH |
564 | } |
565 | ||
1da177e4 LT |
566 | /* |
567 | * This reserves disk blocks and inodes against a dquot. | |
568 | * Flags indicate if the dquot is to be locked here and also | |
569 | * if the blk reservation is for RT or regular blocks. | |
570 | * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check. | |
1da177e4 LT |
571 | */ |
572 | STATIC int | |
573 | xfs_trans_dqresv( | |
aefe69a4 PR |
574 | struct xfs_trans *tp, |
575 | struct xfs_mount *mp, | |
576 | struct xfs_dquot *dqp, | |
577 | int64_t nblks, | |
578 | long ninos, | |
579 | uint flags) | |
1da177e4 | 580 | { |
aefe69a4 PR |
581 | xfs_qcnt_t hardlimit; |
582 | xfs_qcnt_t softlimit; | |
583 | time_t timer; | |
584 | xfs_qwarncnt_t warns; | |
585 | xfs_qwarncnt_t warnlimit; | |
586 | xfs_qcnt_t total_count; | |
587 | xfs_qcnt_t *resbcountp; | |
c072fbef | 588 | struct xfs_quotainfo *q = mp->m_quotainfo; |
be607946 | 589 | struct xfs_def_quota *defq; |
1da177e4 | 590 | |
8e9b6e7f CH |
591 | |
592 | xfs_dqlock(dqp); | |
593 | ||
be607946 CM |
594 | defq = xfs_get_defquota(dqp, q); |
595 | ||
1da177e4 | 596 | if (flags & XFS_TRANS_DQ_RES_BLKS) { |
1149d96a | 597 | hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit); |
1da177e4 | 598 | if (!hardlimit) |
be607946 | 599 | hardlimit = defq->bhardlimit; |
1149d96a | 600 | softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit); |
1da177e4 | 601 | if (!softlimit) |
be607946 | 602 | softlimit = defq->bsoftlimit; |
1149d96a CH |
603 | timer = be32_to_cpu(dqp->q_core.d_btimer); |
604 | warns = be16_to_cpu(dqp->q_core.d_bwarns); | |
8a7b8a89 | 605 | warnlimit = dqp->q_mount->m_quotainfo->qi_bwarnlimit; |
1da177e4 LT |
606 | resbcountp = &dqp->q_res_bcount; |
607 | } else { | |
608 | ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS); | |
1149d96a | 609 | hardlimit = be64_to_cpu(dqp->q_core.d_rtb_hardlimit); |
1da177e4 | 610 | if (!hardlimit) |
be607946 | 611 | hardlimit = defq->rtbhardlimit; |
1149d96a | 612 | softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit); |
1da177e4 | 613 | if (!softlimit) |
be607946 | 614 | softlimit = defq->rtbsoftlimit; |
1149d96a CH |
615 | timer = be32_to_cpu(dqp->q_core.d_rtbtimer); |
616 | warns = be16_to_cpu(dqp->q_core.d_rtbwarns); | |
8a7b8a89 | 617 | warnlimit = dqp->q_mount->m_quotainfo->qi_rtbwarnlimit; |
1da177e4 LT |
618 | resbcountp = &dqp->q_res_rtbcount; |
619 | } | |
1da177e4 LT |
620 | |
621 | if ((flags & XFS_QMOPT_FORCE_RES) == 0 && | |
622 | dqp->q_core.d_id && | |
e6d29426 | 623 | ((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) || |
83e782e1 CS |
624 | (XFS_IS_GQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISGDQ(dqp)) || |
625 | (XFS_IS_PQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISPDQ(dqp)))) { | |
1da177e4 LT |
626 | if (nblks > 0) { |
627 | /* | |
628 | * dquot is locked already. See if we'd go over the | |
629 | * hardlimit or exceed the timelimit if we allocate | |
630 | * nblks. | |
631 | */ | |
70b54376 MH |
632 | total_count = *resbcountp + nblks; |
633 | if (hardlimit && total_count > hardlimit) { | |
a210c1aa | 634 | xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN); |
1da177e4 | 635 | goto error_return; |
a210c1aa | 636 | } |
70b54376 | 637 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
638 | if ((timer != 0 && get_seconds() > timer) || |
639 | (warns != 0 && warns >= warnlimit)) { | |
640 | xfs_quota_warn(mp, dqp, | |
641 | QUOTA_NL_BSOFTLONGWARN); | |
642 | goto error_return; | |
643 | } | |
644 | ||
645 | xfs_quota_warn(mp, dqp, QUOTA_NL_BSOFTWARN); | |
646 | } | |
1da177e4 LT |
647 | } |
648 | if (ninos > 0) { | |
70b54376 | 649 | total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos; |
1149d96a CH |
650 | timer = be32_to_cpu(dqp->q_core.d_itimer); |
651 | warns = be16_to_cpu(dqp->q_core.d_iwarns); | |
8a7b8a89 | 652 | warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit; |
1149d96a | 653 | hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit); |
1da177e4 | 654 | if (!hardlimit) |
be607946 | 655 | hardlimit = defq->ihardlimit; |
1149d96a | 656 | softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit); |
1da177e4 | 657 | if (!softlimit) |
be607946 | 658 | softlimit = defq->isoftlimit; |
4d1f88d7 | 659 | |
70b54376 | 660 | if (hardlimit && total_count > hardlimit) { |
a210c1aa | 661 | xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN); |
1da177e4 | 662 | goto error_return; |
a210c1aa | 663 | } |
70b54376 | 664 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
665 | if ((timer != 0 && get_seconds() > timer) || |
666 | (warns != 0 && warns >= warnlimit)) { | |
667 | xfs_quota_warn(mp, dqp, | |
668 | QUOTA_NL_ISOFTLONGWARN); | |
669 | goto error_return; | |
670 | } | |
671 | xfs_quota_warn(mp, dqp, QUOTA_NL_ISOFTWARN); | |
672 | } | |
1da177e4 LT |
673 | } |
674 | } | |
675 | ||
676 | /* | |
677 | * Change the reservation, but not the actual usage. | |
678 | * Note that q_res_bcount = q_core.d_bcount + resv | |
679 | */ | |
680 | (*resbcountp) += (xfs_qcnt_t)nblks; | |
681 | if (ninos != 0) | |
682 | dqp->q_res_icount += (xfs_qcnt_t)ninos; | |
683 | ||
684 | /* | |
685 | * note the reservation amt in the trans struct too, | |
686 | * so that the transaction knows how much was reserved by | |
687 | * it against this particular dquot. | |
688 | * We don't do this when we are reserving for a delayed allocation, | |
689 | * because we don't have the luxury of a transaction envelope then. | |
690 | */ | |
691 | if (tp) { | |
692 | ASSERT(tp->t_dqinfo); | |
693 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
694 | if (nblks != 0) | |
695 | xfs_trans_mod_dquot(tp, dqp, | |
696 | flags & XFS_QMOPT_RESBLK_MASK, | |
697 | nblks); | |
698 | if (ninos != 0) | |
699 | xfs_trans_mod_dquot(tp, dqp, | |
700 | XFS_TRANS_DQ_RES_INOS, | |
701 | ninos); | |
702 | } | |
1149d96a CH |
703 | ASSERT(dqp->q_res_bcount >= be64_to_cpu(dqp->q_core.d_bcount)); |
704 | ASSERT(dqp->q_res_rtbcount >= be64_to_cpu(dqp->q_core.d_rtbcount)); | |
705 | ASSERT(dqp->q_res_icount >= be64_to_cpu(dqp->q_core.d_icount)); | |
1da177e4 | 706 | |
4d1f88d7 CH |
707 | xfs_dqunlock(dqp); |
708 | return 0; | |
709 | ||
1da177e4 | 710 | error_return: |
8e9b6e7f | 711 | xfs_dqunlock(dqp); |
4d1f88d7 | 712 | if (flags & XFS_QMOPT_ENOSPC) |
2451337d DC |
713 | return -ENOSPC; |
714 | return -EDQUOT; | |
1da177e4 LT |
715 | } |
716 | ||
717 | ||
718 | /* | |
9a2a7de2 | 719 | * Given dquot(s), make disk block and/or inode reservations against them. |
92f8ff73 CS |
720 | * The fact that this does the reservation against user, group and |
721 | * project quotas is important, because this follows a all-or-nothing | |
1da177e4 LT |
722 | * approach. |
723 | * | |
8e9b6e7f | 724 | * flags = XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown. |
9a2a7de2 | 725 | * XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT. Used by pquota. |
1da177e4 LT |
726 | * XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks |
727 | * XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks | |
728 | * dquots are unlocked on return, if they were not locked by caller. | |
729 | */ | |
730 | int | |
731 | xfs_trans_reserve_quota_bydquots( | |
113a5683 CS |
732 | struct xfs_trans *tp, |
733 | struct xfs_mount *mp, | |
734 | struct xfs_dquot *udqp, | |
735 | struct xfs_dquot *gdqp, | |
92f8ff73 | 736 | struct xfs_dquot *pdqp, |
903b1fc2 | 737 | int64_t nblks, |
113a5683 CS |
738 | long ninos, |
739 | uint flags) | |
1da177e4 | 740 | { |
113a5683 | 741 | int error; |
1da177e4 | 742 | |
7d095257 | 743 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 | 744 | return 0; |
1da177e4 LT |
745 | |
746 | if (tp && tp->t_dqinfo == NULL) | |
747 | xfs_trans_alloc_dqinfo(tp); | |
748 | ||
749 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
1da177e4 LT |
750 | |
751 | if (udqp) { | |
9a2a7de2 NS |
752 | error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, |
753 | (flags & ~XFS_QMOPT_ENOSPC)); | |
754 | if (error) | |
755 | return error; | |
1da177e4 LT |
756 | } |
757 | ||
758 | if (gdqp) { | |
9a2a7de2 | 759 | error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags); |
113a5683 CS |
760 | if (error) |
761 | goto unwind_usr; | |
1da177e4 LT |
762 | } |
763 | ||
92f8ff73 CS |
764 | if (pdqp) { |
765 | error = xfs_trans_dqresv(tp, mp, pdqp, nblks, ninos, flags); | |
766 | if (error) | |
767 | goto unwind_grp; | |
768 | } | |
769 | ||
1da177e4 | 770 | /* |
c41564b5 | 771 | * Didn't change anything critical, so, no need to log |
1da177e4 | 772 | */ |
9a2a7de2 | 773 | return 0; |
113a5683 | 774 | |
92f8ff73 CS |
775 | unwind_grp: |
776 | flags |= XFS_QMOPT_FORCE_RES; | |
777 | if (gdqp) | |
778 | xfs_trans_dqresv(tp, mp, gdqp, -nblks, -ninos, flags); | |
113a5683 CS |
779 | unwind_usr: |
780 | flags |= XFS_QMOPT_FORCE_RES; | |
781 | if (udqp) | |
782 | xfs_trans_dqresv(tp, mp, udqp, -nblks, -ninos, flags); | |
783 | return error; | |
1da177e4 LT |
784 | } |
785 | ||
786 | ||
787 | /* | |
788 | * Lock the dquot and change the reservation if we can. | |
789 | * This doesn't change the actual usage, just the reservation. | |
790 | * The inode sent in is locked. | |
1da177e4 | 791 | */ |
7d095257 | 792 | int |
1da177e4 | 793 | xfs_trans_reserve_quota_nblks( |
7d095257 CH |
794 | struct xfs_trans *tp, |
795 | struct xfs_inode *ip, | |
903b1fc2 | 796 | int64_t nblks, |
7d095257 CH |
797 | long ninos, |
798 | uint flags) | |
1da177e4 | 799 | { |
7d095257 | 800 | struct xfs_mount *mp = ip->i_mount; |
1da177e4 | 801 | |
7d095257 | 802 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 NS |
803 | return 0; |
804 | if (XFS_IS_PQUOTA_ON(mp)) | |
805 | flags |= XFS_QMOPT_ENOSPC; | |
1da177e4 | 806 | |
9cad19d2 | 807 | ASSERT(!xfs_is_quota_inode(&mp->m_sb, ip->i_ino)); |
1da177e4 | 808 | |
579aa9ca | 809 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
9a2a7de2 NS |
810 | ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == |
811 | XFS_TRANS_DQ_RES_RTBLKS || | |
812 | (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == | |
813 | XFS_TRANS_DQ_RES_BLKS); | |
1da177e4 LT |
814 | |
815 | /* | |
816 | * Reserve nblks against these dquots, with trans as the mediator. | |
817 | */ | |
7d095257 CH |
818 | return xfs_trans_reserve_quota_bydquots(tp, mp, |
819 | ip->i_udquot, ip->i_gdquot, | |
92f8ff73 | 820 | ip->i_pdquot, |
7d095257 | 821 | nblks, ninos, flags); |
1da177e4 LT |
822 | } |
823 | ||
824 | /* | |
825 | * This routine is called to allocate a quotaoff log item. | |
826 | */ | |
827 | xfs_qoff_logitem_t * | |
828 | xfs_trans_get_qoff_item( | |
829 | xfs_trans_t *tp, | |
830 | xfs_qoff_logitem_t *startqoff, | |
831 | uint flags) | |
832 | { | |
833 | xfs_qoff_logitem_t *q; | |
834 | ||
835 | ASSERT(tp != NULL); | |
836 | ||
837 | q = xfs_qm_qoff_logitem_init(tp->t_mountp, startqoff, flags); | |
838 | ASSERT(q != NULL); | |
839 | ||
840 | /* | |
841 | * Get a log_item_desc to point at the new item. | |
842 | */ | |
e98c414f CH |
843 | xfs_trans_add_item(tp, &q->qql_item); |
844 | return q; | |
1da177e4 LT |
845 | } |
846 | ||
847 | ||
848 | /* | |
849 | * This is called to mark the quotaoff logitem as needing | |
850 | * to be logged when the transaction is committed. The logitem must | |
851 | * already be associated with the given transaction. | |
852 | */ | |
853 | void | |
854 | xfs_trans_log_quotaoff_item( | |
855 | xfs_trans_t *tp, | |
856 | xfs_qoff_logitem_t *qlp) | |
857 | { | |
1da177e4 | 858 | tp->t_flags |= XFS_TRANS_DIRTY; |
e6631f85 | 859 | set_bit(XFS_LI_DIRTY, &qlp->qql_item.li_flags); |
1da177e4 LT |
860 | } |
861 | ||
862 | STATIC void | |
863 | xfs_trans_alloc_dqinfo( | |
864 | xfs_trans_t *tp) | |
865 | { | |
707e0dda | 866 | tp->t_dqinfo = kmem_zone_zalloc(xfs_qm_dqtrxzone, 0); |
1da177e4 LT |
867 | } |
868 | ||
7d095257 | 869 | void |
1da177e4 LT |
870 | xfs_trans_free_dqinfo( |
871 | xfs_trans_t *tp) | |
872 | { | |
873 | if (!tp->t_dqinfo) | |
874 | return; | |
a05931ce | 875 | kmem_zone_free(xfs_qm_dqtrxzone, tp->t_dqinfo); |
7d095257 | 876 | tp->t_dqinfo = NULL; |
1da177e4 | 877 | } |