Commit | Line | Data |
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1da177e4 | 1 | /* |
4ce3121f NS |
2 | * Copyright (c) 2000-2002 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 | */ |
1da177e4 LT |
18 | #include "xfs.h" |
19 | #include "xfs_fs.h" | |
a844f451 | 20 | #include "xfs_bit.h" |
1da177e4 | 21 | #include "xfs_log.h" |
a844f451 | 22 | #include "xfs_inum.h" |
1da177e4 LT |
23 | #include "xfs_trans.h" |
24 | #include "xfs_sb.h" | |
25 | #include "xfs_ag.h" | |
1da177e4 | 26 | #include "xfs_alloc.h" |
1da177e4 LT |
27 | #include "xfs_quota.h" |
28 | #include "xfs_mount.h" | |
1da177e4 | 29 | #include "xfs_bmap_btree.h" |
1da177e4 | 30 | #include "xfs_inode.h" |
a844f451 | 31 | #include "xfs_itable.h" |
1da177e4 | 32 | #include "xfs_bmap.h" |
1da177e4 LT |
33 | #include "xfs_rtalloc.h" |
34 | #include "xfs_error.h" | |
1da177e4 LT |
35 | #include "xfs_attr.h" |
36 | #include "xfs_buf_item.h" | |
37 | #include "xfs_trans_priv.h" | |
1da177e4 LT |
38 | #include "xfs_qm.h" |
39 | ||
40 | STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *); | |
41 | ||
42 | /* | |
43 | * Add the locked dquot to the transaction. | |
44 | * The dquot must be locked, and it cannot be associated with any | |
45 | * transaction. | |
46 | */ | |
47 | void | |
48 | xfs_trans_dqjoin( | |
49 | xfs_trans_t *tp, | |
50 | xfs_dquot_t *dqp) | |
51 | { | |
191f8488 | 52 | ASSERT(dqp->q_transp != tp); |
1da177e4 | 53 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
e98c414f | 54 | ASSERT(dqp->q_logitem.qli_dquot == dqp); |
1da177e4 LT |
55 | |
56 | /* | |
57 | * Get a log_item_desc to point at the new item. | |
58 | */ | |
e98c414f | 59 | xfs_trans_add_item(tp, &dqp->q_logitem.qli_item); |
1da177e4 LT |
60 | |
61 | /* | |
f3ca8738 | 62 | * Initialize d_transp so we can later determine if this dquot is |
1da177e4 LT |
63 | * associated with this transaction. |
64 | */ | |
65 | dqp->q_transp = tp; | |
66 | } | |
67 | ||
68 | ||
69 | /* | |
70 | * This is called to mark the dquot as needing | |
71 | * to be logged when the transaction is committed. The dquot must | |
72 | * already be associated with the given transaction. | |
73 | * Note that it marks the entire transaction as dirty. In the ordinary | |
74 | * case, this gets called via xfs_trans_commit, after the transaction | |
75 | * is already dirty. However, there's nothing stop this from getting | |
76 | * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY | |
77 | * flag. | |
78 | */ | |
79 | void | |
80 | xfs_trans_log_dquot( | |
81 | xfs_trans_t *tp, | |
82 | xfs_dquot_t *dqp) | |
83 | { | |
191f8488 | 84 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
85 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
86 | ||
1da177e4 | 87 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 88 | dqp->q_logitem.qli_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
89 | } |
90 | ||
91 | /* | |
92 | * Carry forward whatever is left of the quota blk reservation to | |
93 | * the spanky new transaction | |
94 | */ | |
7d095257 | 95 | void |
1da177e4 LT |
96 | xfs_trans_dup_dqinfo( |
97 | xfs_trans_t *otp, | |
98 | xfs_trans_t *ntp) | |
99 | { | |
100 | xfs_dqtrx_t *oq, *nq; | |
101 | int i,j; | |
102 | xfs_dqtrx_t *oqa, *nqa; | |
103 | ||
104 | if (!otp->t_dqinfo) | |
105 | return; | |
106 | ||
107 | xfs_trans_alloc_dqinfo(ntp); | |
108 | oqa = otp->t_dqinfo->dqa_usrdquots; | |
109 | nqa = ntp->t_dqinfo->dqa_usrdquots; | |
110 | ||
111 | /* | |
112 | * Because the quota blk reservation is carried forward, | |
113 | * it is also necessary to carry forward the DQ_DIRTY flag. | |
114 | */ | |
115 | if(otp->t_flags & XFS_TRANS_DQ_DIRTY) | |
116 | ntp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
117 | ||
118 | for (j = 0; j < 2; j++) { | |
119 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { | |
120 | if (oqa[i].qt_dquot == NULL) | |
121 | break; | |
122 | oq = &oqa[i]; | |
123 | nq = &nqa[i]; | |
124 | ||
125 | nq->qt_dquot = oq->qt_dquot; | |
126 | nq->qt_bcount_delta = nq->qt_icount_delta = 0; | |
127 | nq->qt_rtbcount_delta = 0; | |
128 | ||
129 | /* | |
130 | * Transfer whatever is left of the reservations. | |
131 | */ | |
132 | nq->qt_blk_res = oq->qt_blk_res - oq->qt_blk_res_used; | |
133 | oq->qt_blk_res = oq->qt_blk_res_used; | |
134 | ||
135 | nq->qt_rtblk_res = oq->qt_rtblk_res - | |
136 | oq->qt_rtblk_res_used; | |
137 | oq->qt_rtblk_res = oq->qt_rtblk_res_used; | |
138 | ||
139 | nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used; | |
140 | oq->qt_ino_res = oq->qt_ino_res_used; | |
141 | ||
142 | } | |
143 | oqa = otp->t_dqinfo->dqa_grpdquots; | |
144 | nqa = ntp->t_dqinfo->dqa_grpdquots; | |
145 | } | |
146 | } | |
147 | ||
148 | /* | |
149 | * Wrap around mod_dquot to account for both user and group quotas. | |
150 | */ | |
7d095257 | 151 | void |
1da177e4 LT |
152 | xfs_trans_mod_dquot_byino( |
153 | xfs_trans_t *tp, | |
154 | xfs_inode_t *ip, | |
155 | uint field, | |
156 | long delta) | |
157 | { | |
7d095257 | 158 | xfs_mount_t *mp = tp->t_mountp; |
1da177e4 | 159 | |
7d095257 CH |
160 | if (!XFS_IS_QUOTA_RUNNING(mp) || |
161 | !XFS_IS_QUOTA_ON(mp) || | |
1da177e4 LT |
162 | ip->i_ino == mp->m_sb.sb_uquotino || |
163 | ip->i_ino == mp->m_sb.sb_gquotino) | |
164 | return; | |
165 | ||
166 | if (tp->t_dqinfo == NULL) | |
167 | xfs_trans_alloc_dqinfo(tp); | |
168 | ||
c8ad20ff | 169 | if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) |
1da177e4 | 170 | (void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta); |
c8ad20ff | 171 | if (XFS_IS_OQUOTA_ON(mp) && ip->i_gdquot) |
1da177e4 | 172 | (void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta); |
1da177e4 LT |
173 | } |
174 | ||
175 | STATIC xfs_dqtrx_t * | |
176 | xfs_trans_get_dqtrx( | |
177 | xfs_trans_t *tp, | |
178 | xfs_dquot_t *dqp) | |
179 | { | |
180 | int i; | |
181 | xfs_dqtrx_t *qa; | |
182 | ||
191f8488 CH |
183 | qa = XFS_QM_ISUDQ(dqp) ? |
184 | tp->t_dqinfo->dqa_usrdquots : tp->t_dqinfo->dqa_grpdquots; | |
1da177e4 | 185 | |
191f8488 | 186 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
1da177e4 | 187 | if (qa[i].qt_dquot == NULL || |
191f8488 CH |
188 | qa[i].qt_dquot == dqp) |
189 | return &qa[i]; | |
1da177e4 LT |
190 | } |
191 | ||
191f8488 | 192 | return NULL; |
1da177e4 LT |
193 | } |
194 | ||
195 | /* | |
196 | * Make the changes in the transaction structure. | |
197 | * The moral equivalent to xfs_trans_mod_sb(). | |
198 | * We don't touch any fields in the dquot, so we don't care | |
199 | * if it's locked or not (most of the time it won't be). | |
200 | */ | |
201 | void | |
202 | xfs_trans_mod_dquot( | |
203 | xfs_trans_t *tp, | |
204 | xfs_dquot_t *dqp, | |
205 | uint field, | |
206 | long delta) | |
207 | { | |
208 | xfs_dqtrx_t *qtrx; | |
209 | ||
210 | ASSERT(tp); | |
7d095257 | 211 | ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp)); |
1da177e4 LT |
212 | qtrx = NULL; |
213 | ||
214 | if (tp->t_dqinfo == NULL) | |
215 | xfs_trans_alloc_dqinfo(tp); | |
216 | /* | |
217 | * Find either the first free slot or the slot that belongs | |
218 | * to this dquot. | |
219 | */ | |
220 | qtrx = xfs_trans_get_dqtrx(tp, dqp); | |
221 | ASSERT(qtrx); | |
222 | if (qtrx->qt_dquot == NULL) | |
223 | qtrx->qt_dquot = dqp; | |
224 | ||
225 | switch (field) { | |
226 | ||
227 | /* | |
228 | * regular disk blk reservation | |
229 | */ | |
230 | case XFS_TRANS_DQ_RES_BLKS: | |
231 | qtrx->qt_blk_res += (ulong)delta; | |
232 | break; | |
233 | ||
234 | /* | |
235 | * inode reservation | |
236 | */ | |
237 | case XFS_TRANS_DQ_RES_INOS: | |
238 | qtrx->qt_ino_res += (ulong)delta; | |
239 | break; | |
240 | ||
241 | /* | |
242 | * disk blocks used. | |
243 | */ | |
244 | case XFS_TRANS_DQ_BCOUNT: | |
245 | if (qtrx->qt_blk_res && delta > 0) { | |
246 | qtrx->qt_blk_res_used += (ulong)delta; | |
247 | ASSERT(qtrx->qt_blk_res >= qtrx->qt_blk_res_used); | |
248 | } | |
249 | qtrx->qt_bcount_delta += delta; | |
250 | break; | |
251 | ||
252 | case XFS_TRANS_DQ_DELBCOUNT: | |
253 | qtrx->qt_delbcnt_delta += delta; | |
254 | break; | |
255 | ||
256 | /* | |
257 | * Inode Count | |
258 | */ | |
259 | case XFS_TRANS_DQ_ICOUNT: | |
260 | if (qtrx->qt_ino_res && delta > 0) { | |
261 | qtrx->qt_ino_res_used += (ulong)delta; | |
262 | ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used); | |
263 | } | |
264 | qtrx->qt_icount_delta += delta; | |
265 | break; | |
266 | ||
267 | /* | |
268 | * rtblk reservation | |
269 | */ | |
270 | case XFS_TRANS_DQ_RES_RTBLKS: | |
271 | qtrx->qt_rtblk_res += (ulong)delta; | |
272 | break; | |
273 | ||
274 | /* | |
275 | * rtblk count | |
276 | */ | |
277 | case XFS_TRANS_DQ_RTBCOUNT: | |
278 | if (qtrx->qt_rtblk_res && delta > 0) { | |
279 | qtrx->qt_rtblk_res_used += (ulong)delta; | |
280 | ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used); | |
281 | } | |
282 | qtrx->qt_rtbcount_delta += delta; | |
283 | break; | |
284 | ||
285 | case XFS_TRANS_DQ_DELRTBCOUNT: | |
286 | qtrx->qt_delrtb_delta += delta; | |
287 | break; | |
288 | ||
289 | default: | |
290 | ASSERT(0); | |
291 | } | |
292 | tp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
293 | } | |
294 | ||
295 | ||
296 | /* | |
297 | * Given an array of dqtrx structures, lock all the dquots associated | |
298 | * and join them to the transaction, provided they have been modified. | |
299 | * We know that the highest number of dquots (of one type - usr OR grp), | |
300 | * involved in a transaction is 2 and that both usr and grp combined - 3. | |
301 | * So, we don't attempt to make this very generic. | |
302 | */ | |
303 | STATIC void | |
304 | xfs_trans_dqlockedjoin( | |
305 | xfs_trans_t *tp, | |
306 | xfs_dqtrx_t *q) | |
307 | { | |
308 | ASSERT(q[0].qt_dquot != NULL); | |
309 | if (q[1].qt_dquot == NULL) { | |
310 | xfs_dqlock(q[0].qt_dquot); | |
311 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
312 | } else { | |
313 | ASSERT(XFS_QM_TRANS_MAXDQS == 2); | |
314 | xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot); | |
315 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
316 | xfs_trans_dqjoin(tp, q[1].qt_dquot); | |
317 | } | |
318 | } | |
319 | ||
320 | ||
321 | /* | |
322 | * Called by xfs_trans_commit() and similar in spirit to | |
323 | * xfs_trans_apply_sb_deltas(). | |
324 | * Go thru all the dquots belonging to this transaction and modify the | |
325 | * INCORE dquot to reflect the actual usages. | |
326 | * Unreserve just the reservations done by this transaction. | |
327 | * dquot is still left locked at exit. | |
328 | */ | |
7d095257 | 329 | void |
1da177e4 LT |
330 | xfs_trans_apply_dquot_deltas( |
331 | xfs_trans_t *tp) | |
332 | { | |
333 | int i, j; | |
334 | xfs_dquot_t *dqp; | |
335 | xfs_dqtrx_t *qtrx, *qa; | |
336 | xfs_disk_dquot_t *d; | |
337 | long totalbdelta; | |
338 | long totalrtbdelta; | |
339 | ||
7d095257 | 340 | if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY)) |
1da177e4 LT |
341 | return; |
342 | ||
343 | ASSERT(tp->t_dqinfo); | |
344 | qa = tp->t_dqinfo->dqa_usrdquots; | |
345 | for (j = 0; j < 2; j++) { | |
346 | if (qa[0].qt_dquot == NULL) { | |
347 | qa = tp->t_dqinfo->dqa_grpdquots; | |
348 | continue; | |
349 | } | |
350 | ||
351 | /* | |
352 | * Lock all of the dquots and join them to the transaction. | |
353 | */ | |
354 | xfs_trans_dqlockedjoin(tp, qa); | |
355 | ||
356 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { | |
357 | qtrx = &qa[i]; | |
358 | /* | |
359 | * The array of dquots is filled | |
360 | * sequentially, not sparsely. | |
361 | */ | |
362 | if ((dqp = qtrx->qt_dquot) == NULL) | |
363 | break; | |
364 | ||
365 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); | |
191f8488 | 366 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
367 | |
368 | /* | |
369 | * adjust the actual number of blocks used | |
370 | */ | |
371 | d = &dqp->q_core; | |
372 | ||
373 | /* | |
374 | * The issue here is - sometimes we don't make a blkquota | |
375 | * reservation intentionally to be fair to users | |
376 | * (when the amount is small). On the other hand, | |
377 | * delayed allocs do make reservations, but that's | |
378 | * outside of a transaction, so we have no | |
379 | * idea how much was really reserved. | |
380 | * So, here we've accumulated delayed allocation blks and | |
381 | * non-delay blks. The assumption is that the | |
382 | * delayed ones are always reserved (outside of a | |
383 | * transaction), and the others may or may not have | |
384 | * quota reservations. | |
385 | */ | |
386 | totalbdelta = qtrx->qt_bcount_delta + | |
387 | qtrx->qt_delbcnt_delta; | |
388 | totalrtbdelta = qtrx->qt_rtbcount_delta + | |
389 | qtrx->qt_delrtb_delta; | |
ea15ab3c | 390 | #ifdef DEBUG |
1da177e4 | 391 | if (totalbdelta < 0) |
1149d96a | 392 | ASSERT(be64_to_cpu(d->d_bcount) >= |
ea15ab3c | 393 | -totalbdelta); |
1da177e4 LT |
394 | |
395 | if (totalrtbdelta < 0) | |
1149d96a | 396 | ASSERT(be64_to_cpu(d->d_rtbcount) >= |
ea15ab3c | 397 | -totalrtbdelta); |
1da177e4 LT |
398 | |
399 | if (qtrx->qt_icount_delta < 0) | |
1149d96a | 400 | ASSERT(be64_to_cpu(d->d_icount) >= |
ea15ab3c | 401 | -qtrx->qt_icount_delta); |
1da177e4 LT |
402 | #endif |
403 | if (totalbdelta) | |
413d57c9 | 404 | be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta); |
1da177e4 LT |
405 | |
406 | if (qtrx->qt_icount_delta) | |
413d57c9 | 407 | be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta); |
1da177e4 LT |
408 | |
409 | if (totalrtbdelta) | |
413d57c9 | 410 | be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta); |
1da177e4 LT |
411 | |
412 | /* | |
413 | * Get any default limits in use. | |
414 | * Start/reset the timer(s) if needed. | |
415 | */ | |
416 | if (d->d_id) { | |
417 | xfs_qm_adjust_dqlimits(tp->t_mountp, d); | |
418 | xfs_qm_adjust_dqtimers(tp->t_mountp, d); | |
419 | } | |
420 | ||
421 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
422 | /* | |
423 | * add this to the list of items to get logged | |
424 | */ | |
425 | xfs_trans_log_dquot(tp, dqp); | |
426 | /* | |
427 | * Take off what's left of the original reservation. | |
428 | * In case of delayed allocations, there's no | |
429 | * reservation that a transaction structure knows of. | |
430 | */ | |
431 | if (qtrx->qt_blk_res != 0) { | |
432 | if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) { | |
433 | if (qtrx->qt_blk_res > | |
434 | qtrx->qt_blk_res_used) | |
435 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
436 | (qtrx->qt_blk_res - | |
437 | qtrx->qt_blk_res_used); | |
438 | else | |
439 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
440 | (qtrx->qt_blk_res_used - | |
441 | qtrx->qt_blk_res); | |
442 | } | |
443 | } else { | |
444 | /* | |
445 | * These blks were never reserved, either inside | |
446 | * a transaction or outside one (in a delayed | |
447 | * allocation). Also, this isn't always a | |
448 | * negative number since we sometimes | |
449 | * deliberately skip quota reservations. | |
450 | */ | |
451 | if (qtrx->qt_bcount_delta) { | |
452 | dqp->q_res_bcount += | |
453 | (xfs_qcnt_t)qtrx->qt_bcount_delta; | |
454 | } | |
455 | } | |
456 | /* | |
457 | * Adjust the RT reservation. | |
458 | */ | |
459 | if (qtrx->qt_rtblk_res != 0) { | |
06d10dd9 | 460 | if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) { |
1da177e4 LT |
461 | if (qtrx->qt_rtblk_res > |
462 | qtrx->qt_rtblk_res_used) | |
463 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
464 | (qtrx->qt_rtblk_res - | |
465 | qtrx->qt_rtblk_res_used); | |
466 | else | |
467 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
468 | (qtrx->qt_rtblk_res_used - | |
469 | qtrx->qt_rtblk_res); | |
470 | } | |
471 | } else { | |
472 | if (qtrx->qt_rtbcount_delta) | |
473 | dqp->q_res_rtbcount += | |
474 | (xfs_qcnt_t)qtrx->qt_rtbcount_delta; | |
475 | } | |
476 | ||
477 | /* | |
478 | * Adjust the inode reservation. | |
479 | */ | |
480 | if (qtrx->qt_ino_res != 0) { | |
481 | ASSERT(qtrx->qt_ino_res >= | |
482 | qtrx->qt_ino_res_used); | |
483 | if (qtrx->qt_ino_res > qtrx->qt_ino_res_used) | |
484 | dqp->q_res_icount -= (xfs_qcnt_t) | |
485 | (qtrx->qt_ino_res - | |
486 | qtrx->qt_ino_res_used); | |
487 | } else { | |
488 | if (qtrx->qt_icount_delta) | |
489 | dqp->q_res_icount += | |
490 | (xfs_qcnt_t)qtrx->qt_icount_delta; | |
491 | } | |
492 | ||
1da177e4 | 493 | ASSERT(dqp->q_res_bcount >= |
1149d96a | 494 | be64_to_cpu(dqp->q_core.d_bcount)); |
1da177e4 | 495 | ASSERT(dqp->q_res_icount >= |
1149d96a | 496 | be64_to_cpu(dqp->q_core.d_icount)); |
1da177e4 | 497 | ASSERT(dqp->q_res_rtbcount >= |
1149d96a | 498 | be64_to_cpu(dqp->q_core.d_rtbcount)); |
1da177e4 LT |
499 | } |
500 | /* | |
501 | * Do the group quotas next | |
502 | */ | |
503 | qa = tp->t_dqinfo->dqa_grpdquots; | |
504 | } | |
505 | } | |
506 | ||
507 | /* | |
508 | * Release the reservations, and adjust the dquots accordingly. | |
509 | * This is called only when the transaction is being aborted. If by | |
510 | * any chance we have done dquot modifications incore (ie. deltas) already, | |
511 | * we simply throw those away, since that's the expected behavior | |
512 | * when a transaction is curtailed without a commit. | |
513 | */ | |
7d095257 | 514 | void |
1da177e4 LT |
515 | xfs_trans_unreserve_and_mod_dquots( |
516 | xfs_trans_t *tp) | |
517 | { | |
518 | int i, j; | |
519 | xfs_dquot_t *dqp; | |
520 | xfs_dqtrx_t *qtrx, *qa; | |
521 | boolean_t locked; | |
522 | ||
523 | if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY)) | |
524 | return; | |
525 | ||
526 | qa = tp->t_dqinfo->dqa_usrdquots; | |
527 | ||
528 | for (j = 0; j < 2; j++) { | |
529 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { | |
530 | qtrx = &qa[i]; | |
531 | /* | |
532 | * We assume that the array of dquots is filled | |
533 | * sequentially, not sparsely. | |
534 | */ | |
535 | if ((dqp = qtrx->qt_dquot) == NULL) | |
536 | break; | |
537 | /* | |
538 | * Unreserve the original reservation. We don't care | |
539 | * about the number of blocks used field, or deltas. | |
540 | * Also we don't bother to zero the fields. | |
541 | */ | |
542 | locked = B_FALSE; | |
543 | if (qtrx->qt_blk_res) { | |
544 | xfs_dqlock(dqp); | |
545 | locked = B_TRUE; | |
546 | dqp->q_res_bcount -= | |
547 | (xfs_qcnt_t)qtrx->qt_blk_res; | |
548 | } | |
549 | if (qtrx->qt_ino_res) { | |
550 | if (!locked) { | |
551 | xfs_dqlock(dqp); | |
552 | locked = B_TRUE; | |
553 | } | |
554 | dqp->q_res_icount -= | |
555 | (xfs_qcnt_t)qtrx->qt_ino_res; | |
556 | } | |
557 | ||
558 | if (qtrx->qt_rtblk_res) { | |
559 | if (!locked) { | |
560 | xfs_dqlock(dqp); | |
561 | locked = B_TRUE; | |
562 | } | |
563 | dqp->q_res_rtbcount -= | |
564 | (xfs_qcnt_t)qtrx->qt_rtblk_res; | |
565 | } | |
566 | if (locked) | |
567 | xfs_dqunlock(dqp); | |
568 | ||
569 | } | |
570 | qa = tp->t_dqinfo->dqa_grpdquots; | |
571 | } | |
572 | } | |
573 | ||
a210c1aa CH |
574 | STATIC void |
575 | xfs_quota_warn( | |
576 | struct xfs_mount *mp, | |
577 | struct xfs_dquot *dqp, | |
578 | int type) | |
579 | { | |
580 | /* no warnings for project quotas - we just return ENOSPC later */ | |
581 | if (dqp->dq_flags & XFS_DQ_PROJ) | |
582 | return; | |
583 | quota_send_warning((dqp->dq_flags & XFS_DQ_USER) ? USRQUOTA : GRPQUOTA, | |
584 | be32_to_cpu(dqp->q_core.d_id), mp->m_super->s_dev, | |
585 | type); | |
586 | } | |
587 | ||
1da177e4 LT |
588 | /* |
589 | * This reserves disk blocks and inodes against a dquot. | |
590 | * Flags indicate if the dquot is to be locked here and also | |
591 | * if the blk reservation is for RT or regular blocks. | |
592 | * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check. | |
1da177e4 LT |
593 | */ |
594 | STATIC int | |
595 | xfs_trans_dqresv( | |
596 | xfs_trans_t *tp, | |
597 | xfs_mount_t *mp, | |
598 | xfs_dquot_t *dqp, | |
599 | long nblks, | |
600 | long ninos, | |
601 | uint flags) | |
602 | { | |
1da177e4 LT |
603 | xfs_qcnt_t hardlimit; |
604 | xfs_qcnt_t softlimit; | |
06d10dd9 NS |
605 | time_t timer; |
606 | xfs_qwarncnt_t warns; | |
607 | xfs_qwarncnt_t warnlimit; | |
70b54376 | 608 | xfs_qcnt_t total_count; |
1da177e4 LT |
609 | xfs_qcnt_t *resbcountp; |
610 | xfs_quotainfo_t *q = mp->m_quotainfo; | |
611 | ||
8e9b6e7f CH |
612 | |
613 | xfs_dqlock(dqp); | |
614 | ||
1da177e4 | 615 | if (flags & XFS_TRANS_DQ_RES_BLKS) { |
1149d96a | 616 | hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit); |
1da177e4 LT |
617 | if (!hardlimit) |
618 | hardlimit = q->qi_bhardlimit; | |
1149d96a | 619 | softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit); |
1da177e4 LT |
620 | if (!softlimit) |
621 | softlimit = q->qi_bsoftlimit; | |
1149d96a CH |
622 | timer = be32_to_cpu(dqp->q_core.d_btimer); |
623 | warns = be16_to_cpu(dqp->q_core.d_bwarns); | |
8a7b8a89 | 624 | warnlimit = dqp->q_mount->m_quotainfo->qi_bwarnlimit; |
1da177e4 LT |
625 | resbcountp = &dqp->q_res_bcount; |
626 | } else { | |
627 | ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS); | |
1149d96a | 628 | hardlimit = be64_to_cpu(dqp->q_core.d_rtb_hardlimit); |
1da177e4 LT |
629 | if (!hardlimit) |
630 | hardlimit = q->qi_rtbhardlimit; | |
1149d96a | 631 | softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit); |
1da177e4 LT |
632 | if (!softlimit) |
633 | softlimit = q->qi_rtbsoftlimit; | |
1149d96a CH |
634 | timer = be32_to_cpu(dqp->q_core.d_rtbtimer); |
635 | warns = be16_to_cpu(dqp->q_core.d_rtbwarns); | |
8a7b8a89 | 636 | warnlimit = dqp->q_mount->m_quotainfo->qi_rtbwarnlimit; |
1da177e4 LT |
637 | resbcountp = &dqp->q_res_rtbcount; |
638 | } | |
1da177e4 LT |
639 | |
640 | if ((flags & XFS_QMOPT_FORCE_RES) == 0 && | |
641 | dqp->q_core.d_id && | |
e6d29426 KO |
642 | ((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) || |
643 | (XFS_IS_OQUOTA_ENFORCED(dqp->q_mount) && | |
644 | (XFS_QM_ISPDQ(dqp) || XFS_QM_ISGDQ(dqp))))) { | |
1da177e4 LT |
645 | if (nblks > 0) { |
646 | /* | |
647 | * dquot is locked already. See if we'd go over the | |
648 | * hardlimit or exceed the timelimit if we allocate | |
649 | * nblks. | |
650 | */ | |
70b54376 MH |
651 | total_count = *resbcountp + nblks; |
652 | if (hardlimit && total_count > hardlimit) { | |
a210c1aa | 653 | xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN); |
1da177e4 | 654 | goto error_return; |
a210c1aa | 655 | } |
70b54376 | 656 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
657 | if ((timer != 0 && get_seconds() > timer) || |
658 | (warns != 0 && warns >= warnlimit)) { | |
659 | xfs_quota_warn(mp, dqp, | |
660 | QUOTA_NL_BSOFTLONGWARN); | |
661 | goto error_return; | |
662 | } | |
663 | ||
664 | xfs_quota_warn(mp, dqp, QUOTA_NL_BSOFTWARN); | |
665 | } | |
1da177e4 LT |
666 | } |
667 | if (ninos > 0) { | |
70b54376 | 668 | total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos; |
1149d96a CH |
669 | timer = be32_to_cpu(dqp->q_core.d_itimer); |
670 | warns = be16_to_cpu(dqp->q_core.d_iwarns); | |
8a7b8a89 | 671 | warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit; |
1149d96a | 672 | hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit); |
1da177e4 LT |
673 | if (!hardlimit) |
674 | hardlimit = q->qi_ihardlimit; | |
1149d96a | 675 | softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit); |
1da177e4 LT |
676 | if (!softlimit) |
677 | softlimit = q->qi_isoftlimit; | |
4d1f88d7 | 678 | |
70b54376 | 679 | if (hardlimit && total_count > hardlimit) { |
a210c1aa | 680 | xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN); |
1da177e4 | 681 | goto error_return; |
a210c1aa | 682 | } |
70b54376 | 683 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
684 | if ((timer != 0 && get_seconds() > timer) || |
685 | (warns != 0 && warns >= warnlimit)) { | |
686 | xfs_quota_warn(mp, dqp, | |
687 | QUOTA_NL_ISOFTLONGWARN); | |
688 | goto error_return; | |
689 | } | |
690 | xfs_quota_warn(mp, dqp, QUOTA_NL_ISOFTWARN); | |
691 | } | |
1da177e4 LT |
692 | } |
693 | } | |
694 | ||
695 | /* | |
696 | * Change the reservation, but not the actual usage. | |
697 | * Note that q_res_bcount = q_core.d_bcount + resv | |
698 | */ | |
699 | (*resbcountp) += (xfs_qcnt_t)nblks; | |
700 | if (ninos != 0) | |
701 | dqp->q_res_icount += (xfs_qcnt_t)ninos; | |
702 | ||
703 | /* | |
704 | * note the reservation amt in the trans struct too, | |
705 | * so that the transaction knows how much was reserved by | |
706 | * it against this particular dquot. | |
707 | * We don't do this when we are reserving for a delayed allocation, | |
708 | * because we don't have the luxury of a transaction envelope then. | |
709 | */ | |
710 | if (tp) { | |
711 | ASSERT(tp->t_dqinfo); | |
712 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
713 | if (nblks != 0) | |
714 | xfs_trans_mod_dquot(tp, dqp, | |
715 | flags & XFS_QMOPT_RESBLK_MASK, | |
716 | nblks); | |
717 | if (ninos != 0) | |
718 | xfs_trans_mod_dquot(tp, dqp, | |
719 | XFS_TRANS_DQ_RES_INOS, | |
720 | ninos); | |
721 | } | |
1149d96a CH |
722 | ASSERT(dqp->q_res_bcount >= be64_to_cpu(dqp->q_core.d_bcount)); |
723 | ASSERT(dqp->q_res_rtbcount >= be64_to_cpu(dqp->q_core.d_rtbcount)); | |
724 | ASSERT(dqp->q_res_icount >= be64_to_cpu(dqp->q_core.d_icount)); | |
1da177e4 | 725 | |
4d1f88d7 CH |
726 | xfs_dqunlock(dqp); |
727 | return 0; | |
728 | ||
1da177e4 | 729 | error_return: |
8e9b6e7f | 730 | xfs_dqunlock(dqp); |
4d1f88d7 CH |
731 | if (flags & XFS_QMOPT_ENOSPC) |
732 | return ENOSPC; | |
733 | return EDQUOT; | |
1da177e4 LT |
734 | } |
735 | ||
736 | ||
737 | /* | |
9a2a7de2 | 738 | * Given dquot(s), make disk block and/or inode reservations against them. |
1da177e4 | 739 | * The fact that this does the reservation against both the usr and |
9a2a7de2 | 740 | * grp/prj quotas is important, because this follows a both-or-nothing |
1da177e4 LT |
741 | * approach. |
742 | * | |
8e9b6e7f | 743 | * flags = XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown. |
9a2a7de2 | 744 | * XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT. Used by pquota. |
1da177e4 LT |
745 | * XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks |
746 | * XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks | |
747 | * dquots are unlocked on return, if they were not locked by caller. | |
748 | */ | |
749 | int | |
750 | xfs_trans_reserve_quota_bydquots( | |
751 | xfs_trans_t *tp, | |
752 | xfs_mount_t *mp, | |
753 | xfs_dquot_t *udqp, | |
754 | xfs_dquot_t *gdqp, | |
755 | long nblks, | |
756 | long ninos, | |
757 | uint flags) | |
758 | { | |
9a2a7de2 | 759 | int resvd = 0, error; |
1da177e4 | 760 | |
7d095257 | 761 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 | 762 | return 0; |
1da177e4 LT |
763 | |
764 | if (tp && tp->t_dqinfo == NULL) | |
765 | xfs_trans_alloc_dqinfo(tp); | |
766 | ||
767 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
1da177e4 LT |
768 | |
769 | if (udqp) { | |
9a2a7de2 NS |
770 | error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, |
771 | (flags & ~XFS_QMOPT_ENOSPC)); | |
772 | if (error) | |
773 | return error; | |
1da177e4 LT |
774 | resvd = 1; |
775 | } | |
776 | ||
777 | if (gdqp) { | |
9a2a7de2 NS |
778 | error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags); |
779 | if (error) { | |
1da177e4 LT |
780 | /* |
781 | * can't do it, so backout previous reservation | |
782 | */ | |
783 | if (resvd) { | |
784 | flags |= XFS_QMOPT_FORCE_RES; | |
785 | xfs_trans_dqresv(tp, mp, udqp, | |
786 | -nblks, -ninos, flags); | |
787 | } | |
9a2a7de2 | 788 | return error; |
1da177e4 LT |
789 | } |
790 | } | |
791 | ||
792 | /* | |
c41564b5 | 793 | * Didn't change anything critical, so, no need to log |
1da177e4 | 794 | */ |
9a2a7de2 | 795 | return 0; |
1da177e4 LT |
796 | } |
797 | ||
798 | ||
799 | /* | |
800 | * Lock the dquot and change the reservation if we can. | |
801 | * This doesn't change the actual usage, just the reservation. | |
802 | * The inode sent in is locked. | |
1da177e4 | 803 | */ |
7d095257 | 804 | int |
1da177e4 | 805 | xfs_trans_reserve_quota_nblks( |
7d095257 CH |
806 | struct xfs_trans *tp, |
807 | struct xfs_inode *ip, | |
808 | long nblks, | |
809 | long ninos, | |
810 | uint flags) | |
1da177e4 | 811 | { |
7d095257 | 812 | struct xfs_mount *mp = ip->i_mount; |
1da177e4 | 813 | |
7d095257 | 814 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 NS |
815 | return 0; |
816 | if (XFS_IS_PQUOTA_ON(mp)) | |
817 | flags |= XFS_QMOPT_ENOSPC; | |
1da177e4 LT |
818 | |
819 | ASSERT(ip->i_ino != mp->m_sb.sb_uquotino); | |
820 | ASSERT(ip->i_ino != mp->m_sb.sb_gquotino); | |
821 | ||
579aa9ca | 822 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
9a2a7de2 NS |
823 | ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == |
824 | XFS_TRANS_DQ_RES_RTBLKS || | |
825 | (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == | |
826 | XFS_TRANS_DQ_RES_BLKS); | |
1da177e4 LT |
827 | |
828 | /* | |
829 | * Reserve nblks against these dquots, with trans as the mediator. | |
830 | */ | |
7d095257 CH |
831 | return xfs_trans_reserve_quota_bydquots(tp, mp, |
832 | ip->i_udquot, ip->i_gdquot, | |
833 | nblks, ninos, flags); | |
1da177e4 LT |
834 | } |
835 | ||
836 | /* | |
837 | * This routine is called to allocate a quotaoff log item. | |
838 | */ | |
839 | xfs_qoff_logitem_t * | |
840 | xfs_trans_get_qoff_item( | |
841 | xfs_trans_t *tp, | |
842 | xfs_qoff_logitem_t *startqoff, | |
843 | uint flags) | |
844 | { | |
845 | xfs_qoff_logitem_t *q; | |
846 | ||
847 | ASSERT(tp != NULL); | |
848 | ||
849 | q = xfs_qm_qoff_logitem_init(tp->t_mountp, startqoff, flags); | |
850 | ASSERT(q != NULL); | |
851 | ||
852 | /* | |
853 | * Get a log_item_desc to point at the new item. | |
854 | */ | |
e98c414f CH |
855 | xfs_trans_add_item(tp, &q->qql_item); |
856 | return q; | |
1da177e4 LT |
857 | } |
858 | ||
859 | ||
860 | /* | |
861 | * This is called to mark the quotaoff logitem as needing | |
862 | * to be logged when the transaction is committed. The logitem must | |
863 | * already be associated with the given transaction. | |
864 | */ | |
865 | void | |
866 | xfs_trans_log_quotaoff_item( | |
867 | xfs_trans_t *tp, | |
868 | xfs_qoff_logitem_t *qlp) | |
869 | { | |
1da177e4 | 870 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 871 | qlp->qql_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
872 | } |
873 | ||
874 | STATIC void | |
875 | xfs_trans_alloc_dqinfo( | |
876 | xfs_trans_t *tp) | |
877 | { | |
7d095257 | 878 | tp->t_dqinfo = kmem_zone_zalloc(xfs_Gqm->qm_dqtrxzone, KM_SLEEP); |
1da177e4 LT |
879 | } |
880 | ||
7d095257 | 881 | void |
1da177e4 LT |
882 | xfs_trans_free_dqinfo( |
883 | xfs_trans_t *tp) | |
884 | { | |
885 | if (!tp->t_dqinfo) | |
886 | return; | |
7d095257 CH |
887 | kmem_zone_free(xfs_Gqm->qm_dqtrxzone, tp->t_dqinfo); |
888 | tp->t_dqinfo = NULL; | |
1da177e4 | 889 | } |