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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" |
1da177e4 | 14 | #include "xfs_error.h" |
239880ef | 15 | #include "xfs_trans.h" |
1da177e4 | 16 | #include "xfs_trans_priv.h" |
a4fbe6ab | 17 | #include "xfs_quota.h" |
1da177e4 LT |
18 | #include "xfs_qm.h" |
19 | ||
20 | STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *); | |
21 | ||
22 | /* | |
23 | * Add the locked dquot to the transaction. | |
24 | * The dquot must be locked, and it cannot be associated with any | |
25 | * transaction. | |
26 | */ | |
27 | void | |
28 | xfs_trans_dqjoin( | |
29 | xfs_trans_t *tp, | |
30 | xfs_dquot_t *dqp) | |
31 | { | |
191f8488 | 32 | ASSERT(dqp->q_transp != tp); |
1da177e4 | 33 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
e98c414f | 34 | ASSERT(dqp->q_logitem.qli_dquot == dqp); |
1da177e4 LT |
35 | |
36 | /* | |
37 | * Get a log_item_desc to point at the new item. | |
38 | */ | |
e98c414f | 39 | xfs_trans_add_item(tp, &dqp->q_logitem.qli_item); |
1da177e4 LT |
40 | |
41 | /* | |
f3ca8738 | 42 | * Initialize d_transp so we can later determine if this dquot is |
1da177e4 LT |
43 | * associated with this transaction. |
44 | */ | |
45 | dqp->q_transp = tp; | |
46 | } | |
47 | ||
48 | ||
49 | /* | |
50 | * This is called to mark the dquot as needing | |
51 | * to be logged when the transaction is committed. The dquot must | |
52 | * already be associated with the given transaction. | |
53 | * Note that it marks the entire transaction as dirty. In the ordinary | |
54 | * case, this gets called via xfs_trans_commit, after the transaction | |
55 | * is already dirty. However, there's nothing stop this from getting | |
56 | * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY | |
57 | * flag. | |
58 | */ | |
59 | void | |
60 | xfs_trans_log_dquot( | |
61 | xfs_trans_t *tp, | |
62 | xfs_dquot_t *dqp) | |
63 | { | |
191f8488 | 64 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
65 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
66 | ||
1da177e4 | 67 | tp->t_flags |= XFS_TRANS_DIRTY; |
e6631f85 | 68 | set_bit(XFS_LI_DIRTY, &dqp->q_logitem.qli_item.li_flags); |
1da177e4 LT |
69 | } |
70 | ||
71 | /* | |
72 | * Carry forward whatever is left of the quota blk reservation to | |
73 | * the spanky new transaction | |
74 | */ | |
7d095257 | 75 | void |
1da177e4 LT |
76 | xfs_trans_dup_dqinfo( |
77 | xfs_trans_t *otp, | |
78 | xfs_trans_t *ntp) | |
79 | { | |
80 | xfs_dqtrx_t *oq, *nq; | |
339e4f66 | 81 | int i, j; |
1da177e4 | 82 | xfs_dqtrx_t *oqa, *nqa; |
7f884dc1 | 83 | ulong blk_res_used; |
1da177e4 LT |
84 | |
85 | if (!otp->t_dqinfo) | |
86 | return; | |
87 | ||
88 | xfs_trans_alloc_dqinfo(ntp); | |
1da177e4 LT |
89 | |
90 | /* | |
91 | * Because the quota blk reservation is carried forward, | |
92 | * it is also necessary to carry forward the DQ_DIRTY flag. | |
93 | */ | |
339e4f66 | 94 | if (otp->t_flags & XFS_TRANS_DQ_DIRTY) |
1da177e4 LT |
95 | ntp->t_flags |= XFS_TRANS_DQ_DIRTY; |
96 | ||
0e6436d9 CS |
97 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
98 | oqa = otp->t_dqinfo->dqs[j]; | |
99 | nqa = ntp->t_dqinfo->dqs[j]; | |
1da177e4 | 100 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
7f884dc1 BF |
101 | blk_res_used = 0; |
102 | ||
1da177e4 LT |
103 | if (oqa[i].qt_dquot == NULL) |
104 | break; | |
105 | oq = &oqa[i]; | |
106 | nq = &nqa[i]; | |
107 | ||
7f884dc1 BF |
108 | if (oq->qt_blk_res && oq->qt_bcount_delta > 0) |
109 | blk_res_used = oq->qt_bcount_delta; | |
110 | ||
1da177e4 LT |
111 | nq->qt_dquot = oq->qt_dquot; |
112 | nq->qt_bcount_delta = nq->qt_icount_delta = 0; | |
113 | nq->qt_rtbcount_delta = 0; | |
114 | ||
115 | /* | |
116 | * Transfer whatever is left of the reservations. | |
117 | */ | |
7f884dc1 BF |
118 | nq->qt_blk_res = oq->qt_blk_res - blk_res_used; |
119 | oq->qt_blk_res = blk_res_used; | |
1da177e4 LT |
120 | |
121 | nq->qt_rtblk_res = oq->qt_rtblk_res - | |
122 | oq->qt_rtblk_res_used; | |
123 | oq->qt_rtblk_res = oq->qt_rtblk_res_used; | |
124 | ||
125 | nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used; | |
126 | oq->qt_ino_res = oq->qt_ino_res_used; | |
127 | ||
128 | } | |
1da177e4 LT |
129 | } |
130 | } | |
131 | ||
132 | /* | |
133 | * Wrap around mod_dquot to account for both user and group quotas. | |
134 | */ | |
7d095257 | 135 | void |
1da177e4 LT |
136 | xfs_trans_mod_dquot_byino( |
137 | xfs_trans_t *tp, | |
138 | xfs_inode_t *ip, | |
139 | uint field, | |
140 | long delta) | |
141 | { | |
7d095257 | 142 | xfs_mount_t *mp = tp->t_mountp; |
1da177e4 | 143 | |
7d095257 CH |
144 | if (!XFS_IS_QUOTA_RUNNING(mp) || |
145 | !XFS_IS_QUOTA_ON(mp) || | |
9cad19d2 | 146 | xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
1da177e4 LT |
147 | return; |
148 | ||
149 | if (tp->t_dqinfo == NULL) | |
150 | xfs_trans_alloc_dqinfo(tp); | |
151 | ||
c8ad20ff | 152 | if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) |
1da177e4 | 153 | (void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta); |
92f8ff73 | 154 | if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot) |
1da177e4 | 155 | (void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta); |
92f8ff73 CS |
156 | if (XFS_IS_PQUOTA_ON(mp) && ip->i_pdquot) |
157 | (void) xfs_trans_mod_dquot(tp, ip->i_pdquot, field, delta); | |
1da177e4 LT |
158 | } |
159 | ||
113a5683 | 160 | STATIC struct xfs_dqtrx * |
1da177e4 | 161 | xfs_trans_get_dqtrx( |
113a5683 CS |
162 | struct xfs_trans *tp, |
163 | struct xfs_dquot *dqp) | |
1da177e4 | 164 | { |
113a5683 CS |
165 | int i; |
166 | struct xfs_dqtrx *qa; | |
1da177e4 | 167 | |
0e6436d9 CS |
168 | if (XFS_QM_ISUDQ(dqp)) |
169 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_USR]; | |
92f8ff73 | 170 | else if (XFS_QM_ISGDQ(dqp)) |
0e6436d9 | 171 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_GRP]; |
92f8ff73 CS |
172 | else if (XFS_QM_ISPDQ(dqp)) |
173 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_PRJ]; | |
174 | else | |
175 | return NULL; | |
1da177e4 | 176 | |
191f8488 | 177 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
1da177e4 | 178 | if (qa[i].qt_dquot == NULL || |
191f8488 CH |
179 | qa[i].qt_dquot == dqp) |
180 | return &qa[i]; | |
1da177e4 LT |
181 | } |
182 | ||
191f8488 | 183 | return NULL; |
1da177e4 LT |
184 | } |
185 | ||
186 | /* | |
187 | * Make the changes in the transaction structure. | |
188 | * The moral equivalent to xfs_trans_mod_sb(). | |
189 | * We don't touch any fields in the dquot, so we don't care | |
190 | * if it's locked or not (most of the time it won't be). | |
191 | */ | |
192 | void | |
193 | xfs_trans_mod_dquot( | |
194 | xfs_trans_t *tp, | |
195 | xfs_dquot_t *dqp, | |
196 | uint field, | |
197 | long delta) | |
198 | { | |
199 | xfs_dqtrx_t *qtrx; | |
200 | ||
201 | ASSERT(tp); | |
7d095257 | 202 | ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp)); |
1da177e4 LT |
203 | qtrx = NULL; |
204 | ||
205 | if (tp->t_dqinfo == NULL) | |
206 | xfs_trans_alloc_dqinfo(tp); | |
207 | /* | |
208 | * Find either the first free slot or the slot that belongs | |
209 | * to this dquot. | |
210 | */ | |
211 | qtrx = xfs_trans_get_dqtrx(tp, dqp); | |
212 | ASSERT(qtrx); | |
213 | if (qtrx->qt_dquot == NULL) | |
214 | qtrx->qt_dquot = dqp; | |
215 | ||
216 | switch (field) { | |
217 | ||
218 | /* | |
219 | * regular disk blk reservation | |
220 | */ | |
221 | case XFS_TRANS_DQ_RES_BLKS: | |
222 | qtrx->qt_blk_res += (ulong)delta; | |
223 | break; | |
224 | ||
225 | /* | |
226 | * inode reservation | |
227 | */ | |
228 | case XFS_TRANS_DQ_RES_INOS: | |
229 | qtrx->qt_ino_res += (ulong)delta; | |
230 | break; | |
231 | ||
232 | /* | |
233 | * disk blocks used. | |
234 | */ | |
235 | case XFS_TRANS_DQ_BCOUNT: | |
1da177e4 LT |
236 | qtrx->qt_bcount_delta += delta; |
237 | break; | |
238 | ||
239 | case XFS_TRANS_DQ_DELBCOUNT: | |
240 | qtrx->qt_delbcnt_delta += delta; | |
241 | break; | |
242 | ||
243 | /* | |
244 | * Inode Count | |
245 | */ | |
246 | case XFS_TRANS_DQ_ICOUNT: | |
247 | if (qtrx->qt_ino_res && delta > 0) { | |
248 | qtrx->qt_ino_res_used += (ulong)delta; | |
249 | ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used); | |
250 | } | |
251 | qtrx->qt_icount_delta += delta; | |
252 | break; | |
253 | ||
254 | /* | |
255 | * rtblk reservation | |
256 | */ | |
257 | case XFS_TRANS_DQ_RES_RTBLKS: | |
258 | qtrx->qt_rtblk_res += (ulong)delta; | |
259 | break; | |
260 | ||
261 | /* | |
262 | * rtblk count | |
263 | */ | |
264 | case XFS_TRANS_DQ_RTBCOUNT: | |
265 | if (qtrx->qt_rtblk_res && delta > 0) { | |
266 | qtrx->qt_rtblk_res_used += (ulong)delta; | |
267 | ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used); | |
268 | } | |
269 | qtrx->qt_rtbcount_delta += delta; | |
270 | break; | |
271 | ||
272 | case XFS_TRANS_DQ_DELRTBCOUNT: | |
273 | qtrx->qt_delrtb_delta += delta; | |
274 | break; | |
275 | ||
276 | default: | |
277 | ASSERT(0); | |
278 | } | |
279 | tp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
280 | } | |
281 | ||
282 | ||
283 | /* | |
b0a9dab7 DC |
284 | * Given an array of dqtrx structures, lock all the dquots associated and join |
285 | * them to the transaction, provided they have been modified. We know that the | |
10f73d27 CH |
286 | * highest number of dquots of one type - usr, grp and prj - involved in a |
287 | * transaction is 3 so we don't need to make this very generic. | |
1da177e4 LT |
288 | */ |
289 | STATIC void | |
290 | xfs_trans_dqlockedjoin( | |
291 | xfs_trans_t *tp, | |
292 | xfs_dqtrx_t *q) | |
293 | { | |
294 | ASSERT(q[0].qt_dquot != NULL); | |
295 | if (q[1].qt_dquot == NULL) { | |
296 | xfs_dqlock(q[0].qt_dquot); | |
297 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
298 | } else { | |
299 | ASSERT(XFS_QM_TRANS_MAXDQS == 2); | |
300 | xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot); | |
301 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
302 | xfs_trans_dqjoin(tp, q[1].qt_dquot); | |
303 | } | |
304 | } | |
305 | ||
306 | ||
307 | /* | |
308 | * Called by xfs_trans_commit() and similar in spirit to | |
309 | * xfs_trans_apply_sb_deltas(). | |
310 | * Go thru all the dquots belonging to this transaction and modify the | |
311 | * INCORE dquot to reflect the actual usages. | |
312 | * Unreserve just the reservations done by this transaction. | |
313 | * dquot is still left locked at exit. | |
314 | */ | |
7d095257 | 315 | void |
1da177e4 | 316 | xfs_trans_apply_dquot_deltas( |
4b6eae2e | 317 | struct xfs_trans *tp) |
1da177e4 LT |
318 | { |
319 | int i, j; | |
4b6eae2e BF |
320 | struct xfs_dquot *dqp; |
321 | struct xfs_dqtrx *qtrx, *qa; | |
322 | struct xfs_disk_dquot *d; | |
1da177e4 LT |
323 | long totalbdelta; |
324 | long totalrtbdelta; | |
325 | ||
7d095257 | 326 | if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY)) |
1da177e4 LT |
327 | return; |
328 | ||
329 | ASSERT(tp->t_dqinfo); | |
0e6436d9 CS |
330 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
331 | qa = tp->t_dqinfo->dqs[j]; | |
332 | if (qa[0].qt_dquot == NULL) | |
1da177e4 | 333 | continue; |
1da177e4 LT |
334 | |
335 | /* | |
336 | * Lock all of the dquots and join them to the transaction. | |
337 | */ | |
338 | xfs_trans_dqlockedjoin(tp, qa); | |
339 | ||
340 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { | |
341 | qtrx = &qa[i]; | |
342 | /* | |
343 | * The array of dquots is filled | |
344 | * sequentially, not sparsely. | |
345 | */ | |
346 | if ((dqp = qtrx->qt_dquot) == NULL) | |
347 | break; | |
348 | ||
349 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); | |
191f8488 | 350 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
351 | |
352 | /* | |
353 | * adjust the actual number of blocks used | |
354 | */ | |
355 | d = &dqp->q_core; | |
356 | ||
357 | /* | |
358 | * The issue here is - sometimes we don't make a blkquota | |
359 | * reservation intentionally to be fair to users | |
360 | * (when the amount is small). On the other hand, | |
361 | * delayed allocs do make reservations, but that's | |
362 | * outside of a transaction, so we have no | |
363 | * idea how much was really reserved. | |
364 | * So, here we've accumulated delayed allocation blks and | |
365 | * non-delay blks. The assumption is that the | |
366 | * delayed ones are always reserved (outside of a | |
367 | * transaction), and the others may or may not have | |
368 | * quota reservations. | |
369 | */ | |
370 | totalbdelta = qtrx->qt_bcount_delta + | |
371 | qtrx->qt_delbcnt_delta; | |
372 | totalrtbdelta = qtrx->qt_rtbcount_delta + | |
373 | qtrx->qt_delrtb_delta; | |
ea15ab3c | 374 | #ifdef DEBUG |
1da177e4 | 375 | if (totalbdelta < 0) |
1149d96a | 376 | ASSERT(be64_to_cpu(d->d_bcount) >= |
ea15ab3c | 377 | -totalbdelta); |
1da177e4 LT |
378 | |
379 | if (totalrtbdelta < 0) | |
1149d96a | 380 | ASSERT(be64_to_cpu(d->d_rtbcount) >= |
ea15ab3c | 381 | -totalrtbdelta); |
1da177e4 LT |
382 | |
383 | if (qtrx->qt_icount_delta < 0) | |
1149d96a | 384 | ASSERT(be64_to_cpu(d->d_icount) >= |
ea15ab3c | 385 | -qtrx->qt_icount_delta); |
1da177e4 LT |
386 | #endif |
387 | if (totalbdelta) | |
413d57c9 | 388 | be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta); |
1da177e4 LT |
389 | |
390 | if (qtrx->qt_icount_delta) | |
413d57c9 | 391 | be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta); |
1da177e4 LT |
392 | |
393 | if (totalrtbdelta) | |
413d57c9 | 394 | be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta); |
1da177e4 LT |
395 | |
396 | /* | |
397 | * Get any default limits in use. | |
398 | * Start/reset the timer(s) if needed. | |
399 | */ | |
400 | if (d->d_id) { | |
4b6eae2e | 401 | xfs_qm_adjust_dqlimits(tp->t_mountp, dqp); |
1da177e4 LT |
402 | xfs_qm_adjust_dqtimers(tp->t_mountp, d); |
403 | } | |
404 | ||
405 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
406 | /* | |
407 | * add this to the list of items to get logged | |
408 | */ | |
409 | xfs_trans_log_dquot(tp, dqp); | |
410 | /* | |
411 | * Take off what's left of the original reservation. | |
412 | * In case of delayed allocations, there's no | |
413 | * reservation that a transaction structure knows of. | |
414 | */ | |
415 | if (qtrx->qt_blk_res != 0) { | |
7f884dc1 BF |
416 | ulong blk_res_used = 0; |
417 | ||
418 | if (qtrx->qt_bcount_delta > 0) | |
419 | blk_res_used = qtrx->qt_bcount_delta; | |
420 | ||
421 | if (qtrx->qt_blk_res != blk_res_used) { | |
422 | if (qtrx->qt_blk_res > blk_res_used) | |
1da177e4 LT |
423 | dqp->q_res_bcount -= (xfs_qcnt_t) |
424 | (qtrx->qt_blk_res - | |
7f884dc1 | 425 | blk_res_used); |
1da177e4 LT |
426 | else |
427 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
7f884dc1 | 428 | (blk_res_used - |
1da177e4 LT |
429 | qtrx->qt_blk_res); |
430 | } | |
431 | } else { | |
432 | /* | |
433 | * These blks were never reserved, either inside | |
434 | * a transaction or outside one (in a delayed | |
435 | * allocation). Also, this isn't always a | |
436 | * negative number since we sometimes | |
437 | * deliberately skip quota reservations. | |
438 | */ | |
439 | if (qtrx->qt_bcount_delta) { | |
440 | dqp->q_res_bcount += | |
441 | (xfs_qcnt_t)qtrx->qt_bcount_delta; | |
442 | } | |
443 | } | |
444 | /* | |
445 | * Adjust the RT reservation. | |
446 | */ | |
447 | if (qtrx->qt_rtblk_res != 0) { | |
06d10dd9 | 448 | if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) { |
1da177e4 LT |
449 | if (qtrx->qt_rtblk_res > |
450 | qtrx->qt_rtblk_res_used) | |
451 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
452 | (qtrx->qt_rtblk_res - | |
453 | qtrx->qt_rtblk_res_used); | |
454 | else | |
455 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
456 | (qtrx->qt_rtblk_res_used - | |
457 | qtrx->qt_rtblk_res); | |
458 | } | |
459 | } else { | |
460 | if (qtrx->qt_rtbcount_delta) | |
461 | dqp->q_res_rtbcount += | |
462 | (xfs_qcnt_t)qtrx->qt_rtbcount_delta; | |
463 | } | |
464 | ||
465 | /* | |
466 | * Adjust the inode reservation. | |
467 | */ | |
468 | if (qtrx->qt_ino_res != 0) { | |
469 | ASSERT(qtrx->qt_ino_res >= | |
470 | qtrx->qt_ino_res_used); | |
471 | if (qtrx->qt_ino_res > qtrx->qt_ino_res_used) | |
472 | dqp->q_res_icount -= (xfs_qcnt_t) | |
473 | (qtrx->qt_ino_res - | |
474 | qtrx->qt_ino_res_used); | |
475 | } else { | |
476 | if (qtrx->qt_icount_delta) | |
477 | dqp->q_res_icount += | |
478 | (xfs_qcnt_t)qtrx->qt_icount_delta; | |
479 | } | |
480 | ||
1da177e4 | 481 | ASSERT(dqp->q_res_bcount >= |
1149d96a | 482 | be64_to_cpu(dqp->q_core.d_bcount)); |
1da177e4 | 483 | ASSERT(dqp->q_res_icount >= |
1149d96a | 484 | be64_to_cpu(dqp->q_core.d_icount)); |
1da177e4 | 485 | ASSERT(dqp->q_res_rtbcount >= |
1149d96a | 486 | be64_to_cpu(dqp->q_core.d_rtbcount)); |
1da177e4 | 487 | } |
1da177e4 LT |
488 | } |
489 | } | |
490 | ||
491 | /* | |
492 | * Release the reservations, and adjust the dquots accordingly. | |
493 | * This is called only when the transaction is being aborted. If by | |
494 | * any chance we have done dquot modifications incore (ie. deltas) already, | |
495 | * we simply throw those away, since that's the expected behavior | |
496 | * when a transaction is curtailed without a commit. | |
497 | */ | |
7d095257 | 498 | void |
1da177e4 LT |
499 | xfs_trans_unreserve_and_mod_dquots( |
500 | xfs_trans_t *tp) | |
501 | { | |
502 | int i, j; | |
503 | xfs_dquot_t *dqp; | |
504 | xfs_dqtrx_t *qtrx, *qa; | |
667a9291 | 505 | bool locked; |
1da177e4 LT |
506 | |
507 | if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY)) | |
508 | return; | |
509 | ||
0e6436d9 CS |
510 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
511 | qa = tp->t_dqinfo->dqs[j]; | |
1da177e4 | 512 | |
1da177e4 LT |
513 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
514 | qtrx = &qa[i]; | |
515 | /* | |
516 | * We assume that the array of dquots is filled | |
517 | * sequentially, not sparsely. | |
518 | */ | |
519 | if ((dqp = qtrx->qt_dquot) == NULL) | |
520 | break; | |
521 | /* | |
522 | * Unreserve the original reservation. We don't care | |
523 | * about the number of blocks used field, or deltas. | |
524 | * Also we don't bother to zero the fields. | |
525 | */ | |
667a9291 | 526 | locked = false; |
1da177e4 LT |
527 | if (qtrx->qt_blk_res) { |
528 | xfs_dqlock(dqp); | |
667a9291 | 529 | locked = true; |
1da177e4 LT |
530 | dqp->q_res_bcount -= |
531 | (xfs_qcnt_t)qtrx->qt_blk_res; | |
532 | } | |
533 | if (qtrx->qt_ino_res) { | |
534 | if (!locked) { | |
535 | xfs_dqlock(dqp); | |
667a9291 | 536 | locked = true; |
1da177e4 LT |
537 | } |
538 | dqp->q_res_icount -= | |
539 | (xfs_qcnt_t)qtrx->qt_ino_res; | |
540 | } | |
541 | ||
542 | if (qtrx->qt_rtblk_res) { | |
543 | if (!locked) { | |
544 | xfs_dqlock(dqp); | |
667a9291 | 545 | locked = true; |
1da177e4 LT |
546 | } |
547 | dqp->q_res_rtbcount -= | |
548 | (xfs_qcnt_t)qtrx->qt_rtblk_res; | |
549 | } | |
550 | if (locked) | |
551 | xfs_dqunlock(dqp); | |
552 | ||
553 | } | |
1da177e4 LT |
554 | } |
555 | } | |
556 | ||
a210c1aa CH |
557 | STATIC void |
558 | xfs_quota_warn( | |
559 | struct xfs_mount *mp, | |
560 | struct xfs_dquot *dqp, | |
561 | int type) | |
562 | { | |
ffc671f1 MY |
563 | enum quota_type qtype; |
564 | ||
a210c1aa | 565 | if (dqp->dq_flags & XFS_DQ_PROJ) |
ffc671f1 MY |
566 | qtype = PRJQUOTA; |
567 | else if (dqp->dq_flags & XFS_DQ_USER) | |
568 | qtype = USRQUOTA; | |
569 | else | |
570 | qtype = GRPQUOTA; | |
571 | ||
572 | quota_send_warning(make_kqid(&init_user_ns, qtype, | |
431f1974 EB |
573 | be32_to_cpu(dqp->q_core.d_id)), |
574 | mp->m_super->s_dev, type); | |
a210c1aa CH |
575 | } |
576 | ||
1da177e4 LT |
577 | /* |
578 | * This reserves disk blocks and inodes against a dquot. | |
579 | * Flags indicate if the dquot is to be locked here and also | |
580 | * if the blk reservation is for RT or regular blocks. | |
581 | * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check. | |
1da177e4 LT |
582 | */ |
583 | STATIC int | |
584 | xfs_trans_dqresv( | |
585 | xfs_trans_t *tp, | |
586 | xfs_mount_t *mp, | |
587 | xfs_dquot_t *dqp, | |
588 | long nblks, | |
589 | long ninos, | |
590 | uint flags) | |
591 | { | |
1da177e4 LT |
592 | xfs_qcnt_t hardlimit; |
593 | xfs_qcnt_t softlimit; | |
06d10dd9 NS |
594 | time_t timer; |
595 | xfs_qwarncnt_t warns; | |
596 | xfs_qwarncnt_t warnlimit; | |
70b54376 | 597 | xfs_qcnt_t total_count; |
1da177e4 LT |
598 | xfs_qcnt_t *resbcountp; |
599 | xfs_quotainfo_t *q = mp->m_quotainfo; | |
be607946 | 600 | struct xfs_def_quota *defq; |
1da177e4 | 601 | |
8e9b6e7f CH |
602 | |
603 | xfs_dqlock(dqp); | |
604 | ||
be607946 CM |
605 | defq = xfs_get_defquota(dqp, q); |
606 | ||
1da177e4 | 607 | if (flags & XFS_TRANS_DQ_RES_BLKS) { |
1149d96a | 608 | hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit); |
1da177e4 | 609 | if (!hardlimit) |
be607946 | 610 | hardlimit = defq->bhardlimit; |
1149d96a | 611 | softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit); |
1da177e4 | 612 | if (!softlimit) |
be607946 | 613 | softlimit = defq->bsoftlimit; |
1149d96a CH |
614 | timer = be32_to_cpu(dqp->q_core.d_btimer); |
615 | warns = be16_to_cpu(dqp->q_core.d_bwarns); | |
8a7b8a89 | 616 | warnlimit = dqp->q_mount->m_quotainfo->qi_bwarnlimit; |
1da177e4 LT |
617 | resbcountp = &dqp->q_res_bcount; |
618 | } else { | |
619 | ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS); | |
1149d96a | 620 | hardlimit = be64_to_cpu(dqp->q_core.d_rtb_hardlimit); |
1da177e4 | 621 | if (!hardlimit) |
be607946 | 622 | hardlimit = defq->rtbhardlimit; |
1149d96a | 623 | softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit); |
1da177e4 | 624 | if (!softlimit) |
be607946 | 625 | softlimit = defq->rtbsoftlimit; |
1149d96a CH |
626 | timer = be32_to_cpu(dqp->q_core.d_rtbtimer); |
627 | warns = be16_to_cpu(dqp->q_core.d_rtbwarns); | |
8a7b8a89 | 628 | warnlimit = dqp->q_mount->m_quotainfo->qi_rtbwarnlimit; |
1da177e4 LT |
629 | resbcountp = &dqp->q_res_rtbcount; |
630 | } | |
1da177e4 LT |
631 | |
632 | if ((flags & XFS_QMOPT_FORCE_RES) == 0 && | |
633 | dqp->q_core.d_id && | |
e6d29426 | 634 | ((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) || |
83e782e1 CS |
635 | (XFS_IS_GQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISGDQ(dqp)) || |
636 | (XFS_IS_PQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISPDQ(dqp)))) { | |
1da177e4 LT |
637 | if (nblks > 0) { |
638 | /* | |
639 | * dquot is locked already. See if we'd go over the | |
640 | * hardlimit or exceed the timelimit if we allocate | |
641 | * nblks. | |
642 | */ | |
70b54376 MH |
643 | total_count = *resbcountp + nblks; |
644 | if (hardlimit && total_count > hardlimit) { | |
a210c1aa | 645 | xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN); |
1da177e4 | 646 | goto error_return; |
a210c1aa | 647 | } |
70b54376 | 648 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
649 | if ((timer != 0 && get_seconds() > timer) || |
650 | (warns != 0 && warns >= warnlimit)) { | |
651 | xfs_quota_warn(mp, dqp, | |
652 | QUOTA_NL_BSOFTLONGWARN); | |
653 | goto error_return; | |
654 | } | |
655 | ||
656 | xfs_quota_warn(mp, dqp, QUOTA_NL_BSOFTWARN); | |
657 | } | |
1da177e4 LT |
658 | } |
659 | if (ninos > 0) { | |
70b54376 | 660 | total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos; |
1149d96a CH |
661 | timer = be32_to_cpu(dqp->q_core.d_itimer); |
662 | warns = be16_to_cpu(dqp->q_core.d_iwarns); | |
8a7b8a89 | 663 | warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit; |
1149d96a | 664 | hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit); |
1da177e4 | 665 | if (!hardlimit) |
be607946 | 666 | hardlimit = defq->ihardlimit; |
1149d96a | 667 | softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit); |
1da177e4 | 668 | if (!softlimit) |
be607946 | 669 | softlimit = defq->isoftlimit; |
4d1f88d7 | 670 | |
70b54376 | 671 | if (hardlimit && total_count > hardlimit) { |
a210c1aa | 672 | xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN); |
1da177e4 | 673 | goto error_return; |
a210c1aa | 674 | } |
70b54376 | 675 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
676 | if ((timer != 0 && get_seconds() > timer) || |
677 | (warns != 0 && warns >= warnlimit)) { | |
678 | xfs_quota_warn(mp, dqp, | |
679 | QUOTA_NL_ISOFTLONGWARN); | |
680 | goto error_return; | |
681 | } | |
682 | xfs_quota_warn(mp, dqp, QUOTA_NL_ISOFTWARN); | |
683 | } | |
1da177e4 LT |
684 | } |
685 | } | |
686 | ||
687 | /* | |
688 | * Change the reservation, but not the actual usage. | |
689 | * Note that q_res_bcount = q_core.d_bcount + resv | |
690 | */ | |
691 | (*resbcountp) += (xfs_qcnt_t)nblks; | |
692 | if (ninos != 0) | |
693 | dqp->q_res_icount += (xfs_qcnt_t)ninos; | |
694 | ||
695 | /* | |
696 | * note the reservation amt in the trans struct too, | |
697 | * so that the transaction knows how much was reserved by | |
698 | * it against this particular dquot. | |
699 | * We don't do this when we are reserving for a delayed allocation, | |
700 | * because we don't have the luxury of a transaction envelope then. | |
701 | */ | |
702 | if (tp) { | |
703 | ASSERT(tp->t_dqinfo); | |
704 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
705 | if (nblks != 0) | |
706 | xfs_trans_mod_dquot(tp, dqp, | |
707 | flags & XFS_QMOPT_RESBLK_MASK, | |
708 | nblks); | |
709 | if (ninos != 0) | |
710 | xfs_trans_mod_dquot(tp, dqp, | |
711 | XFS_TRANS_DQ_RES_INOS, | |
712 | ninos); | |
713 | } | |
1149d96a CH |
714 | ASSERT(dqp->q_res_bcount >= be64_to_cpu(dqp->q_core.d_bcount)); |
715 | ASSERT(dqp->q_res_rtbcount >= be64_to_cpu(dqp->q_core.d_rtbcount)); | |
716 | ASSERT(dqp->q_res_icount >= be64_to_cpu(dqp->q_core.d_icount)); | |
1da177e4 | 717 | |
4d1f88d7 CH |
718 | xfs_dqunlock(dqp); |
719 | return 0; | |
720 | ||
1da177e4 | 721 | error_return: |
8e9b6e7f | 722 | xfs_dqunlock(dqp); |
4d1f88d7 | 723 | if (flags & XFS_QMOPT_ENOSPC) |
2451337d DC |
724 | return -ENOSPC; |
725 | return -EDQUOT; | |
1da177e4 LT |
726 | } |
727 | ||
728 | ||
729 | /* | |
9a2a7de2 | 730 | * Given dquot(s), make disk block and/or inode reservations against them. |
92f8ff73 CS |
731 | * The fact that this does the reservation against user, group and |
732 | * project quotas is important, because this follows a all-or-nothing | |
1da177e4 LT |
733 | * approach. |
734 | * | |
8e9b6e7f | 735 | * flags = XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown. |
9a2a7de2 | 736 | * XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT. Used by pquota. |
1da177e4 LT |
737 | * XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks |
738 | * XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks | |
739 | * dquots are unlocked on return, if they were not locked by caller. | |
740 | */ | |
741 | int | |
742 | xfs_trans_reserve_quota_bydquots( | |
113a5683 CS |
743 | struct xfs_trans *tp, |
744 | struct xfs_mount *mp, | |
745 | struct xfs_dquot *udqp, | |
746 | struct xfs_dquot *gdqp, | |
92f8ff73 | 747 | struct xfs_dquot *pdqp, |
113a5683 CS |
748 | long nblks, |
749 | long ninos, | |
750 | uint flags) | |
1da177e4 | 751 | { |
113a5683 | 752 | int error; |
1da177e4 | 753 | |
7d095257 | 754 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 | 755 | return 0; |
1da177e4 LT |
756 | |
757 | if (tp && tp->t_dqinfo == NULL) | |
758 | xfs_trans_alloc_dqinfo(tp); | |
759 | ||
760 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
1da177e4 LT |
761 | |
762 | if (udqp) { | |
9a2a7de2 NS |
763 | error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, |
764 | (flags & ~XFS_QMOPT_ENOSPC)); | |
765 | if (error) | |
766 | return error; | |
1da177e4 LT |
767 | } |
768 | ||
769 | if (gdqp) { | |
9a2a7de2 | 770 | error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags); |
113a5683 CS |
771 | if (error) |
772 | goto unwind_usr; | |
1da177e4 LT |
773 | } |
774 | ||
92f8ff73 CS |
775 | if (pdqp) { |
776 | error = xfs_trans_dqresv(tp, mp, pdqp, nblks, ninos, flags); | |
777 | if (error) | |
778 | goto unwind_grp; | |
779 | } | |
780 | ||
1da177e4 | 781 | /* |
c41564b5 | 782 | * Didn't change anything critical, so, no need to log |
1da177e4 | 783 | */ |
9a2a7de2 | 784 | return 0; |
113a5683 | 785 | |
92f8ff73 CS |
786 | unwind_grp: |
787 | flags |= XFS_QMOPT_FORCE_RES; | |
788 | if (gdqp) | |
789 | xfs_trans_dqresv(tp, mp, gdqp, -nblks, -ninos, flags); | |
113a5683 CS |
790 | unwind_usr: |
791 | flags |= XFS_QMOPT_FORCE_RES; | |
792 | if (udqp) | |
793 | xfs_trans_dqresv(tp, mp, udqp, -nblks, -ninos, flags); | |
794 | return error; | |
1da177e4 LT |
795 | } |
796 | ||
797 | ||
798 | /* | |
799 | * Lock the dquot and change the reservation if we can. | |
800 | * This doesn't change the actual usage, just the reservation. | |
801 | * The inode sent in is locked. | |
1da177e4 | 802 | */ |
7d095257 | 803 | int |
1da177e4 | 804 | xfs_trans_reserve_quota_nblks( |
7d095257 CH |
805 | struct xfs_trans *tp, |
806 | struct xfs_inode *ip, | |
807 | long nblks, | |
808 | long ninos, | |
809 | uint flags) | |
1da177e4 | 810 | { |
7d095257 | 811 | struct xfs_mount *mp = ip->i_mount; |
1da177e4 | 812 | |
7d095257 | 813 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 NS |
814 | return 0; |
815 | if (XFS_IS_PQUOTA_ON(mp)) | |
816 | flags |= XFS_QMOPT_ENOSPC; | |
1da177e4 | 817 | |
9cad19d2 | 818 | ASSERT(!xfs_is_quota_inode(&mp->m_sb, ip->i_ino)); |
1da177e4 | 819 | |
579aa9ca | 820 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
9a2a7de2 NS |
821 | ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == |
822 | XFS_TRANS_DQ_RES_RTBLKS || | |
823 | (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == | |
824 | XFS_TRANS_DQ_RES_BLKS); | |
1da177e4 LT |
825 | |
826 | /* | |
827 | * Reserve nblks against these dquots, with trans as the mediator. | |
828 | */ | |
7d095257 CH |
829 | return xfs_trans_reserve_quota_bydquots(tp, mp, |
830 | ip->i_udquot, ip->i_gdquot, | |
92f8ff73 | 831 | ip->i_pdquot, |
7d095257 | 832 | nblks, ninos, flags); |
1da177e4 LT |
833 | } |
834 | ||
835 | /* | |
836 | * This routine is called to allocate a quotaoff log item. | |
837 | */ | |
838 | xfs_qoff_logitem_t * | |
839 | xfs_trans_get_qoff_item( | |
840 | xfs_trans_t *tp, | |
841 | xfs_qoff_logitem_t *startqoff, | |
842 | uint flags) | |
843 | { | |
844 | xfs_qoff_logitem_t *q; | |
845 | ||
846 | ASSERT(tp != NULL); | |
847 | ||
848 | q = xfs_qm_qoff_logitem_init(tp->t_mountp, startqoff, flags); | |
849 | ASSERT(q != NULL); | |
850 | ||
851 | /* | |
852 | * Get a log_item_desc to point at the new item. | |
853 | */ | |
e98c414f CH |
854 | xfs_trans_add_item(tp, &q->qql_item); |
855 | return q; | |
1da177e4 LT |
856 | } |
857 | ||
858 | ||
859 | /* | |
860 | * This is called to mark the quotaoff logitem as needing | |
861 | * to be logged when the transaction is committed. The logitem must | |
862 | * already be associated with the given transaction. | |
863 | */ | |
864 | void | |
865 | xfs_trans_log_quotaoff_item( | |
866 | xfs_trans_t *tp, | |
867 | xfs_qoff_logitem_t *qlp) | |
868 | { | |
1da177e4 | 869 | tp->t_flags |= XFS_TRANS_DIRTY; |
e6631f85 | 870 | set_bit(XFS_LI_DIRTY, &qlp->qql_item.li_flags); |
1da177e4 LT |
871 | } |
872 | ||
873 | STATIC void | |
874 | xfs_trans_alloc_dqinfo( | |
875 | xfs_trans_t *tp) | |
876 | { | |
a05931ce | 877 | tp->t_dqinfo = kmem_zone_zalloc(xfs_qm_dqtrxzone, KM_SLEEP); |
1da177e4 LT |
878 | } |
879 | ||
7d095257 | 880 | void |
1da177e4 LT |
881 | xfs_trans_free_dqinfo( |
882 | xfs_trans_t *tp) | |
883 | { | |
884 | if (!tp->t_dqinfo) | |
885 | return; | |
a05931ce | 886 | kmem_zone_free(xfs_qm_dqtrxzone, tp->t_dqinfo); |
7d095257 | 887 | tp->t_dqinfo = NULL; |
1da177e4 | 888 | } |