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" | |
70a9883c | 20 | #include "xfs_shared.h" |
239880ef DC |
21 | #include "xfs_format.h" |
22 | #include "xfs_log_format.h" | |
23 | #include "xfs_trans_resv.h" | |
1da177e4 | 24 | #include "xfs_mount.h" |
1da177e4 | 25 | #include "xfs_inode.h" |
1da177e4 | 26 | #include "xfs_error.h" |
239880ef | 27 | #include "xfs_trans.h" |
1da177e4 | 28 | #include "xfs_trans_priv.h" |
a4fbe6ab | 29 | #include "xfs_quota.h" |
1da177e4 LT |
30 | #include "xfs_qm.h" |
31 | ||
32 | STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *); | |
33 | ||
34 | /* | |
35 | * Add the locked dquot to the transaction. | |
36 | * The dquot must be locked, and it cannot be associated with any | |
37 | * transaction. | |
38 | */ | |
39 | void | |
40 | xfs_trans_dqjoin( | |
41 | xfs_trans_t *tp, | |
42 | xfs_dquot_t *dqp) | |
43 | { | |
191f8488 | 44 | ASSERT(dqp->q_transp != tp); |
1da177e4 | 45 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
e98c414f | 46 | ASSERT(dqp->q_logitem.qli_dquot == dqp); |
1da177e4 LT |
47 | |
48 | /* | |
49 | * Get a log_item_desc to point at the new item. | |
50 | */ | |
e98c414f | 51 | xfs_trans_add_item(tp, &dqp->q_logitem.qli_item); |
1da177e4 LT |
52 | |
53 | /* | |
f3ca8738 | 54 | * Initialize d_transp so we can later determine if this dquot is |
1da177e4 LT |
55 | * associated with this transaction. |
56 | */ | |
57 | dqp->q_transp = tp; | |
58 | } | |
59 | ||
60 | ||
61 | /* | |
62 | * This is called to mark the dquot as needing | |
63 | * to be logged when the transaction is committed. The dquot must | |
64 | * already be associated with the given transaction. | |
65 | * Note that it marks the entire transaction as dirty. In the ordinary | |
66 | * case, this gets called via xfs_trans_commit, after the transaction | |
67 | * is already dirty. However, there's nothing stop this from getting | |
68 | * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY | |
69 | * flag. | |
70 | */ | |
71 | void | |
72 | xfs_trans_log_dquot( | |
73 | xfs_trans_t *tp, | |
74 | xfs_dquot_t *dqp) | |
75 | { | |
191f8488 | 76 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
77 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
78 | ||
1da177e4 | 79 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 80 | dqp->q_logitem.qli_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
81 | } |
82 | ||
83 | /* | |
84 | * Carry forward whatever is left of the quota blk reservation to | |
85 | * the spanky new transaction | |
86 | */ | |
7d095257 | 87 | void |
1da177e4 LT |
88 | xfs_trans_dup_dqinfo( |
89 | xfs_trans_t *otp, | |
90 | xfs_trans_t *ntp) | |
91 | { | |
92 | xfs_dqtrx_t *oq, *nq; | |
93 | int i,j; | |
94 | xfs_dqtrx_t *oqa, *nqa; | |
95 | ||
96 | if (!otp->t_dqinfo) | |
97 | return; | |
98 | ||
99 | xfs_trans_alloc_dqinfo(ntp); | |
1da177e4 LT |
100 | |
101 | /* | |
102 | * Because the quota blk reservation is carried forward, | |
103 | * it is also necessary to carry forward the DQ_DIRTY flag. | |
104 | */ | |
105 | if(otp->t_flags & XFS_TRANS_DQ_DIRTY) | |
106 | ntp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
107 | ||
0e6436d9 CS |
108 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
109 | oqa = otp->t_dqinfo->dqs[j]; | |
110 | nqa = ntp->t_dqinfo->dqs[j]; | |
1da177e4 LT |
111 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
112 | if (oqa[i].qt_dquot == NULL) | |
113 | break; | |
114 | oq = &oqa[i]; | |
115 | nq = &nqa[i]; | |
116 | ||
117 | nq->qt_dquot = oq->qt_dquot; | |
118 | nq->qt_bcount_delta = nq->qt_icount_delta = 0; | |
119 | nq->qt_rtbcount_delta = 0; | |
120 | ||
121 | /* | |
122 | * Transfer whatever is left of the reservations. | |
123 | */ | |
124 | nq->qt_blk_res = oq->qt_blk_res - oq->qt_blk_res_used; | |
125 | oq->qt_blk_res = oq->qt_blk_res_used; | |
126 | ||
127 | nq->qt_rtblk_res = oq->qt_rtblk_res - | |
128 | oq->qt_rtblk_res_used; | |
129 | oq->qt_rtblk_res = oq->qt_rtblk_res_used; | |
130 | ||
131 | nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used; | |
132 | oq->qt_ino_res = oq->qt_ino_res_used; | |
133 | ||
134 | } | |
1da177e4 LT |
135 | } |
136 | } | |
137 | ||
138 | /* | |
139 | * Wrap around mod_dquot to account for both user and group quotas. | |
140 | */ | |
7d095257 | 141 | void |
1da177e4 LT |
142 | xfs_trans_mod_dquot_byino( |
143 | xfs_trans_t *tp, | |
144 | xfs_inode_t *ip, | |
145 | uint field, | |
146 | long delta) | |
147 | { | |
7d095257 | 148 | xfs_mount_t *mp = tp->t_mountp; |
1da177e4 | 149 | |
7d095257 CH |
150 | if (!XFS_IS_QUOTA_RUNNING(mp) || |
151 | !XFS_IS_QUOTA_ON(mp) || | |
9cad19d2 | 152 | xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
1da177e4 LT |
153 | return; |
154 | ||
155 | if (tp->t_dqinfo == NULL) | |
156 | xfs_trans_alloc_dqinfo(tp); | |
157 | ||
c8ad20ff | 158 | if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) |
1da177e4 | 159 | (void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta); |
92f8ff73 | 160 | if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot) |
1da177e4 | 161 | (void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta); |
92f8ff73 CS |
162 | if (XFS_IS_PQUOTA_ON(mp) && ip->i_pdquot) |
163 | (void) xfs_trans_mod_dquot(tp, ip->i_pdquot, field, delta); | |
1da177e4 LT |
164 | } |
165 | ||
113a5683 | 166 | STATIC struct xfs_dqtrx * |
1da177e4 | 167 | xfs_trans_get_dqtrx( |
113a5683 CS |
168 | struct xfs_trans *tp, |
169 | struct xfs_dquot *dqp) | |
1da177e4 | 170 | { |
113a5683 CS |
171 | int i; |
172 | struct xfs_dqtrx *qa; | |
1da177e4 | 173 | |
0e6436d9 CS |
174 | if (XFS_QM_ISUDQ(dqp)) |
175 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_USR]; | |
92f8ff73 | 176 | else if (XFS_QM_ISGDQ(dqp)) |
0e6436d9 | 177 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_GRP]; |
92f8ff73 CS |
178 | else if (XFS_QM_ISPDQ(dqp)) |
179 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_PRJ]; | |
180 | else | |
181 | return NULL; | |
1da177e4 | 182 | |
191f8488 | 183 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
1da177e4 | 184 | if (qa[i].qt_dquot == NULL || |
191f8488 CH |
185 | qa[i].qt_dquot == dqp) |
186 | return &qa[i]; | |
1da177e4 LT |
187 | } |
188 | ||
191f8488 | 189 | return NULL; |
1da177e4 LT |
190 | } |
191 | ||
192 | /* | |
193 | * Make the changes in the transaction structure. | |
194 | * The moral equivalent to xfs_trans_mod_sb(). | |
195 | * We don't touch any fields in the dquot, so we don't care | |
196 | * if it's locked or not (most of the time it won't be). | |
197 | */ | |
198 | void | |
199 | xfs_trans_mod_dquot( | |
200 | xfs_trans_t *tp, | |
201 | xfs_dquot_t *dqp, | |
202 | uint field, | |
203 | long delta) | |
204 | { | |
205 | xfs_dqtrx_t *qtrx; | |
206 | ||
207 | ASSERT(tp); | |
7d095257 | 208 | ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp)); |
1da177e4 LT |
209 | qtrx = NULL; |
210 | ||
211 | if (tp->t_dqinfo == NULL) | |
212 | xfs_trans_alloc_dqinfo(tp); | |
213 | /* | |
214 | * Find either the first free slot or the slot that belongs | |
215 | * to this dquot. | |
216 | */ | |
217 | qtrx = xfs_trans_get_dqtrx(tp, dqp); | |
218 | ASSERT(qtrx); | |
219 | if (qtrx->qt_dquot == NULL) | |
220 | qtrx->qt_dquot = dqp; | |
221 | ||
222 | switch (field) { | |
223 | ||
224 | /* | |
225 | * regular disk blk reservation | |
226 | */ | |
227 | case XFS_TRANS_DQ_RES_BLKS: | |
228 | qtrx->qt_blk_res += (ulong)delta; | |
229 | break; | |
230 | ||
231 | /* | |
232 | * inode reservation | |
233 | */ | |
234 | case XFS_TRANS_DQ_RES_INOS: | |
235 | qtrx->qt_ino_res += (ulong)delta; | |
236 | break; | |
237 | ||
238 | /* | |
239 | * disk blocks used. | |
240 | */ | |
241 | case XFS_TRANS_DQ_BCOUNT: | |
242 | if (qtrx->qt_blk_res && delta > 0) { | |
243 | qtrx->qt_blk_res_used += (ulong)delta; | |
244 | ASSERT(qtrx->qt_blk_res >= qtrx->qt_blk_res_used); | |
245 | } | |
246 | qtrx->qt_bcount_delta += delta; | |
247 | break; | |
248 | ||
249 | case XFS_TRANS_DQ_DELBCOUNT: | |
250 | qtrx->qt_delbcnt_delta += delta; | |
251 | break; | |
252 | ||
253 | /* | |
254 | * Inode Count | |
255 | */ | |
256 | case XFS_TRANS_DQ_ICOUNT: | |
257 | if (qtrx->qt_ino_res && delta > 0) { | |
258 | qtrx->qt_ino_res_used += (ulong)delta; | |
259 | ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used); | |
260 | } | |
261 | qtrx->qt_icount_delta += delta; | |
262 | break; | |
263 | ||
264 | /* | |
265 | * rtblk reservation | |
266 | */ | |
267 | case XFS_TRANS_DQ_RES_RTBLKS: | |
268 | qtrx->qt_rtblk_res += (ulong)delta; | |
269 | break; | |
270 | ||
271 | /* | |
272 | * rtblk count | |
273 | */ | |
274 | case XFS_TRANS_DQ_RTBCOUNT: | |
275 | if (qtrx->qt_rtblk_res && delta > 0) { | |
276 | qtrx->qt_rtblk_res_used += (ulong)delta; | |
277 | ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used); | |
278 | } | |
279 | qtrx->qt_rtbcount_delta += delta; | |
280 | break; | |
281 | ||
282 | case XFS_TRANS_DQ_DELRTBCOUNT: | |
283 | qtrx->qt_delrtb_delta += delta; | |
284 | break; | |
285 | ||
286 | default: | |
287 | ASSERT(0); | |
288 | } | |
289 | tp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
290 | } | |
291 | ||
292 | ||
293 | /* | |
b0a9dab7 DC |
294 | * Given an array of dqtrx structures, lock all the dquots associated and join |
295 | * them to the transaction, provided they have been modified. We know that the | |
10f73d27 CH |
296 | * highest number of dquots of one type - usr, grp and prj - involved in a |
297 | * transaction is 3 so we don't need to make this very generic. | |
1da177e4 LT |
298 | */ |
299 | STATIC void | |
300 | xfs_trans_dqlockedjoin( | |
301 | xfs_trans_t *tp, | |
302 | xfs_dqtrx_t *q) | |
303 | { | |
304 | ASSERT(q[0].qt_dquot != NULL); | |
305 | if (q[1].qt_dquot == NULL) { | |
306 | xfs_dqlock(q[0].qt_dquot); | |
307 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
308 | } else { | |
309 | ASSERT(XFS_QM_TRANS_MAXDQS == 2); | |
310 | xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot); | |
311 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
312 | xfs_trans_dqjoin(tp, q[1].qt_dquot); | |
313 | } | |
314 | } | |
315 | ||
316 | ||
317 | /* | |
318 | * Called by xfs_trans_commit() and similar in spirit to | |
319 | * xfs_trans_apply_sb_deltas(). | |
320 | * Go thru all the dquots belonging to this transaction and modify the | |
321 | * INCORE dquot to reflect the actual usages. | |
322 | * Unreserve just the reservations done by this transaction. | |
323 | * dquot is still left locked at exit. | |
324 | */ | |
7d095257 | 325 | void |
1da177e4 | 326 | xfs_trans_apply_dquot_deltas( |
4b6eae2e | 327 | struct xfs_trans *tp) |
1da177e4 LT |
328 | { |
329 | int i, j; | |
4b6eae2e BF |
330 | struct xfs_dquot *dqp; |
331 | struct xfs_dqtrx *qtrx, *qa; | |
332 | struct xfs_disk_dquot *d; | |
1da177e4 LT |
333 | long totalbdelta; |
334 | long totalrtbdelta; | |
335 | ||
7d095257 | 336 | if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY)) |
1da177e4 LT |
337 | return; |
338 | ||
339 | ASSERT(tp->t_dqinfo); | |
0e6436d9 CS |
340 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
341 | qa = tp->t_dqinfo->dqs[j]; | |
342 | if (qa[0].qt_dquot == NULL) | |
1da177e4 | 343 | continue; |
1da177e4 LT |
344 | |
345 | /* | |
346 | * Lock all of the dquots and join them to the transaction. | |
347 | */ | |
348 | xfs_trans_dqlockedjoin(tp, qa); | |
349 | ||
350 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { | |
351 | qtrx = &qa[i]; | |
352 | /* | |
353 | * The array of dquots is filled | |
354 | * sequentially, not sparsely. | |
355 | */ | |
356 | if ((dqp = qtrx->qt_dquot) == NULL) | |
357 | break; | |
358 | ||
359 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); | |
191f8488 | 360 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
361 | |
362 | /* | |
363 | * adjust the actual number of blocks used | |
364 | */ | |
365 | d = &dqp->q_core; | |
366 | ||
367 | /* | |
368 | * The issue here is - sometimes we don't make a blkquota | |
369 | * reservation intentionally to be fair to users | |
370 | * (when the amount is small). On the other hand, | |
371 | * delayed allocs do make reservations, but that's | |
372 | * outside of a transaction, so we have no | |
373 | * idea how much was really reserved. | |
374 | * So, here we've accumulated delayed allocation blks and | |
375 | * non-delay blks. The assumption is that the | |
376 | * delayed ones are always reserved (outside of a | |
377 | * transaction), and the others may or may not have | |
378 | * quota reservations. | |
379 | */ | |
380 | totalbdelta = qtrx->qt_bcount_delta + | |
381 | qtrx->qt_delbcnt_delta; | |
382 | totalrtbdelta = qtrx->qt_rtbcount_delta + | |
383 | qtrx->qt_delrtb_delta; | |
ea15ab3c | 384 | #ifdef DEBUG |
1da177e4 | 385 | if (totalbdelta < 0) |
1149d96a | 386 | ASSERT(be64_to_cpu(d->d_bcount) >= |
ea15ab3c | 387 | -totalbdelta); |
1da177e4 LT |
388 | |
389 | if (totalrtbdelta < 0) | |
1149d96a | 390 | ASSERT(be64_to_cpu(d->d_rtbcount) >= |
ea15ab3c | 391 | -totalrtbdelta); |
1da177e4 LT |
392 | |
393 | if (qtrx->qt_icount_delta < 0) | |
1149d96a | 394 | ASSERT(be64_to_cpu(d->d_icount) >= |
ea15ab3c | 395 | -qtrx->qt_icount_delta); |
1da177e4 LT |
396 | #endif |
397 | if (totalbdelta) | |
413d57c9 | 398 | be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta); |
1da177e4 LT |
399 | |
400 | if (qtrx->qt_icount_delta) | |
413d57c9 | 401 | be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta); |
1da177e4 LT |
402 | |
403 | if (totalrtbdelta) | |
413d57c9 | 404 | be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta); |
1da177e4 LT |
405 | |
406 | /* | |
407 | * Get any default limits in use. | |
408 | * Start/reset the timer(s) if needed. | |
409 | */ | |
410 | if (d->d_id) { | |
4b6eae2e | 411 | xfs_qm_adjust_dqlimits(tp->t_mountp, dqp); |
1da177e4 LT |
412 | xfs_qm_adjust_dqtimers(tp->t_mountp, d); |
413 | } | |
414 | ||
415 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
416 | /* | |
417 | * add this to the list of items to get logged | |
418 | */ | |
419 | xfs_trans_log_dquot(tp, dqp); | |
420 | /* | |
421 | * Take off what's left of the original reservation. | |
422 | * In case of delayed allocations, there's no | |
423 | * reservation that a transaction structure knows of. | |
424 | */ | |
425 | if (qtrx->qt_blk_res != 0) { | |
426 | if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) { | |
427 | if (qtrx->qt_blk_res > | |
428 | qtrx->qt_blk_res_used) | |
429 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
430 | (qtrx->qt_blk_res - | |
431 | qtrx->qt_blk_res_used); | |
432 | else | |
433 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
434 | (qtrx->qt_blk_res_used - | |
435 | qtrx->qt_blk_res); | |
436 | } | |
437 | } else { | |
438 | /* | |
439 | * These blks were never reserved, either inside | |
440 | * a transaction or outside one (in a delayed | |
441 | * allocation). Also, this isn't always a | |
442 | * negative number since we sometimes | |
443 | * deliberately skip quota reservations. | |
444 | */ | |
445 | if (qtrx->qt_bcount_delta) { | |
446 | dqp->q_res_bcount += | |
447 | (xfs_qcnt_t)qtrx->qt_bcount_delta; | |
448 | } | |
449 | } | |
450 | /* | |
451 | * Adjust the RT reservation. | |
452 | */ | |
453 | if (qtrx->qt_rtblk_res != 0) { | |
06d10dd9 | 454 | if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) { |
1da177e4 LT |
455 | if (qtrx->qt_rtblk_res > |
456 | qtrx->qt_rtblk_res_used) | |
457 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
458 | (qtrx->qt_rtblk_res - | |
459 | qtrx->qt_rtblk_res_used); | |
460 | else | |
461 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
462 | (qtrx->qt_rtblk_res_used - | |
463 | qtrx->qt_rtblk_res); | |
464 | } | |
465 | } else { | |
466 | if (qtrx->qt_rtbcount_delta) | |
467 | dqp->q_res_rtbcount += | |
468 | (xfs_qcnt_t)qtrx->qt_rtbcount_delta; | |
469 | } | |
470 | ||
471 | /* | |
472 | * Adjust the inode reservation. | |
473 | */ | |
474 | if (qtrx->qt_ino_res != 0) { | |
475 | ASSERT(qtrx->qt_ino_res >= | |
476 | qtrx->qt_ino_res_used); | |
477 | if (qtrx->qt_ino_res > qtrx->qt_ino_res_used) | |
478 | dqp->q_res_icount -= (xfs_qcnt_t) | |
479 | (qtrx->qt_ino_res - | |
480 | qtrx->qt_ino_res_used); | |
481 | } else { | |
482 | if (qtrx->qt_icount_delta) | |
483 | dqp->q_res_icount += | |
484 | (xfs_qcnt_t)qtrx->qt_icount_delta; | |
485 | } | |
486 | ||
1da177e4 | 487 | ASSERT(dqp->q_res_bcount >= |
1149d96a | 488 | be64_to_cpu(dqp->q_core.d_bcount)); |
1da177e4 | 489 | ASSERT(dqp->q_res_icount >= |
1149d96a | 490 | be64_to_cpu(dqp->q_core.d_icount)); |
1da177e4 | 491 | ASSERT(dqp->q_res_rtbcount >= |
1149d96a | 492 | be64_to_cpu(dqp->q_core.d_rtbcount)); |
1da177e4 | 493 | } |
1da177e4 LT |
494 | } |
495 | } | |
496 | ||
497 | /* | |
498 | * Release the reservations, and adjust the dquots accordingly. | |
499 | * This is called only when the transaction is being aborted. If by | |
500 | * any chance we have done dquot modifications incore (ie. deltas) already, | |
501 | * we simply throw those away, since that's the expected behavior | |
502 | * when a transaction is curtailed without a commit. | |
503 | */ | |
7d095257 | 504 | void |
1da177e4 LT |
505 | xfs_trans_unreserve_and_mod_dquots( |
506 | xfs_trans_t *tp) | |
507 | { | |
508 | int i, j; | |
509 | xfs_dquot_t *dqp; | |
510 | xfs_dqtrx_t *qtrx, *qa; | |
667a9291 | 511 | bool locked; |
1da177e4 LT |
512 | |
513 | if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY)) | |
514 | return; | |
515 | ||
0e6436d9 CS |
516 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
517 | qa = tp->t_dqinfo->dqs[j]; | |
1da177e4 | 518 | |
1da177e4 LT |
519 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
520 | qtrx = &qa[i]; | |
521 | /* | |
522 | * We assume that the array of dquots is filled | |
523 | * sequentially, not sparsely. | |
524 | */ | |
525 | if ((dqp = qtrx->qt_dquot) == NULL) | |
526 | break; | |
527 | /* | |
528 | * Unreserve the original reservation. We don't care | |
529 | * about the number of blocks used field, or deltas. | |
530 | * Also we don't bother to zero the fields. | |
531 | */ | |
667a9291 | 532 | locked = false; |
1da177e4 LT |
533 | if (qtrx->qt_blk_res) { |
534 | xfs_dqlock(dqp); | |
667a9291 | 535 | locked = true; |
1da177e4 LT |
536 | dqp->q_res_bcount -= |
537 | (xfs_qcnt_t)qtrx->qt_blk_res; | |
538 | } | |
539 | if (qtrx->qt_ino_res) { | |
540 | if (!locked) { | |
541 | xfs_dqlock(dqp); | |
667a9291 | 542 | locked = true; |
1da177e4 LT |
543 | } |
544 | dqp->q_res_icount -= | |
545 | (xfs_qcnt_t)qtrx->qt_ino_res; | |
546 | } | |
547 | ||
548 | if (qtrx->qt_rtblk_res) { | |
549 | if (!locked) { | |
550 | xfs_dqlock(dqp); | |
667a9291 | 551 | locked = true; |
1da177e4 LT |
552 | } |
553 | dqp->q_res_rtbcount -= | |
554 | (xfs_qcnt_t)qtrx->qt_rtblk_res; | |
555 | } | |
556 | if (locked) | |
557 | xfs_dqunlock(dqp); | |
558 | ||
559 | } | |
1da177e4 LT |
560 | } |
561 | } | |
562 | ||
a210c1aa CH |
563 | STATIC void |
564 | xfs_quota_warn( | |
565 | struct xfs_mount *mp, | |
566 | struct xfs_dquot *dqp, | |
567 | int type) | |
568 | { | |
569 | /* no warnings for project quotas - we just return ENOSPC later */ | |
570 | if (dqp->dq_flags & XFS_DQ_PROJ) | |
571 | return; | |
431f1974 EB |
572 | quota_send_warning(make_kqid(&init_user_ns, |
573 | (dqp->dq_flags & XFS_DQ_USER) ? | |
574 | USRQUOTA : GRPQUOTA, | |
575 | be32_to_cpu(dqp->q_core.d_id)), | |
576 | mp->m_super->s_dev, type); | |
a210c1aa CH |
577 | } |
578 | ||
1da177e4 LT |
579 | /* |
580 | * This reserves disk blocks and inodes against a dquot. | |
581 | * Flags indicate if the dquot is to be locked here and also | |
582 | * if the blk reservation is for RT or regular blocks. | |
583 | * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check. | |
1da177e4 LT |
584 | */ |
585 | STATIC int | |
586 | xfs_trans_dqresv( | |
587 | xfs_trans_t *tp, | |
588 | xfs_mount_t *mp, | |
589 | xfs_dquot_t *dqp, | |
590 | long nblks, | |
591 | long ninos, | |
592 | uint flags) | |
593 | { | |
1da177e4 LT |
594 | xfs_qcnt_t hardlimit; |
595 | xfs_qcnt_t softlimit; | |
06d10dd9 NS |
596 | time_t timer; |
597 | xfs_qwarncnt_t warns; | |
598 | xfs_qwarncnt_t warnlimit; | |
70b54376 | 599 | xfs_qcnt_t total_count; |
1da177e4 LT |
600 | xfs_qcnt_t *resbcountp; |
601 | xfs_quotainfo_t *q = mp->m_quotainfo; | |
602 | ||
8e9b6e7f CH |
603 | |
604 | xfs_dqlock(dqp); | |
605 | ||
1da177e4 | 606 | if (flags & XFS_TRANS_DQ_RES_BLKS) { |
1149d96a | 607 | hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit); |
1da177e4 LT |
608 | if (!hardlimit) |
609 | hardlimit = q->qi_bhardlimit; | |
1149d96a | 610 | softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit); |
1da177e4 LT |
611 | if (!softlimit) |
612 | softlimit = q->qi_bsoftlimit; | |
1149d96a CH |
613 | timer = be32_to_cpu(dqp->q_core.d_btimer); |
614 | warns = be16_to_cpu(dqp->q_core.d_bwarns); | |
8a7b8a89 | 615 | warnlimit = dqp->q_mount->m_quotainfo->qi_bwarnlimit; |
1da177e4 LT |
616 | resbcountp = &dqp->q_res_bcount; |
617 | } else { | |
618 | ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS); | |
1149d96a | 619 | hardlimit = be64_to_cpu(dqp->q_core.d_rtb_hardlimit); |
1da177e4 LT |
620 | if (!hardlimit) |
621 | hardlimit = q->qi_rtbhardlimit; | |
1149d96a | 622 | softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit); |
1da177e4 LT |
623 | if (!softlimit) |
624 | softlimit = q->qi_rtbsoftlimit; | |
1149d96a CH |
625 | timer = be32_to_cpu(dqp->q_core.d_rtbtimer); |
626 | warns = be16_to_cpu(dqp->q_core.d_rtbwarns); | |
8a7b8a89 | 627 | warnlimit = dqp->q_mount->m_quotainfo->qi_rtbwarnlimit; |
1da177e4 LT |
628 | resbcountp = &dqp->q_res_rtbcount; |
629 | } | |
1da177e4 LT |
630 | |
631 | if ((flags & XFS_QMOPT_FORCE_RES) == 0 && | |
632 | dqp->q_core.d_id && | |
e6d29426 | 633 | ((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) || |
83e782e1 CS |
634 | (XFS_IS_GQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISGDQ(dqp)) || |
635 | (XFS_IS_PQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISPDQ(dqp)))) { | |
1da177e4 LT |
636 | if (nblks > 0) { |
637 | /* | |
638 | * dquot is locked already. See if we'd go over the | |
639 | * hardlimit or exceed the timelimit if we allocate | |
640 | * nblks. | |
641 | */ | |
70b54376 MH |
642 | total_count = *resbcountp + nblks; |
643 | if (hardlimit && total_count > hardlimit) { | |
a210c1aa | 644 | xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN); |
1da177e4 | 645 | goto error_return; |
a210c1aa | 646 | } |
70b54376 | 647 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
648 | if ((timer != 0 && get_seconds() > timer) || |
649 | (warns != 0 && warns >= warnlimit)) { | |
650 | xfs_quota_warn(mp, dqp, | |
651 | QUOTA_NL_BSOFTLONGWARN); | |
652 | goto error_return; | |
653 | } | |
654 | ||
655 | xfs_quota_warn(mp, dqp, QUOTA_NL_BSOFTWARN); | |
656 | } | |
1da177e4 LT |
657 | } |
658 | if (ninos > 0) { | |
70b54376 | 659 | total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos; |
1149d96a CH |
660 | timer = be32_to_cpu(dqp->q_core.d_itimer); |
661 | warns = be16_to_cpu(dqp->q_core.d_iwarns); | |
8a7b8a89 | 662 | warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit; |
1149d96a | 663 | hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit); |
1da177e4 LT |
664 | if (!hardlimit) |
665 | hardlimit = q->qi_ihardlimit; | |
1149d96a | 666 | softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit); |
1da177e4 LT |
667 | if (!softlimit) |
668 | softlimit = q->qi_isoftlimit; | |
4d1f88d7 | 669 | |
70b54376 | 670 | if (hardlimit && total_count > hardlimit) { |
a210c1aa | 671 | xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN); |
1da177e4 | 672 | goto error_return; |
a210c1aa | 673 | } |
70b54376 | 674 | if (softlimit && total_count > softlimit) { |
a210c1aa CH |
675 | if ((timer != 0 && get_seconds() > timer) || |
676 | (warns != 0 && warns >= warnlimit)) { | |
677 | xfs_quota_warn(mp, dqp, | |
678 | QUOTA_NL_ISOFTLONGWARN); | |
679 | goto error_return; | |
680 | } | |
681 | xfs_quota_warn(mp, dqp, QUOTA_NL_ISOFTWARN); | |
682 | } | |
1da177e4 LT |
683 | } |
684 | } | |
685 | ||
686 | /* | |
687 | * Change the reservation, but not the actual usage. | |
688 | * Note that q_res_bcount = q_core.d_bcount + resv | |
689 | */ | |
690 | (*resbcountp) += (xfs_qcnt_t)nblks; | |
691 | if (ninos != 0) | |
692 | dqp->q_res_icount += (xfs_qcnt_t)ninos; | |
693 | ||
694 | /* | |
695 | * note the reservation amt in the trans struct too, | |
696 | * so that the transaction knows how much was reserved by | |
697 | * it against this particular dquot. | |
698 | * We don't do this when we are reserving for a delayed allocation, | |
699 | * because we don't have the luxury of a transaction envelope then. | |
700 | */ | |
701 | if (tp) { | |
702 | ASSERT(tp->t_dqinfo); | |
703 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
704 | if (nblks != 0) | |
705 | xfs_trans_mod_dquot(tp, dqp, | |
706 | flags & XFS_QMOPT_RESBLK_MASK, | |
707 | nblks); | |
708 | if (ninos != 0) | |
709 | xfs_trans_mod_dquot(tp, dqp, | |
710 | XFS_TRANS_DQ_RES_INOS, | |
711 | ninos); | |
712 | } | |
1149d96a CH |
713 | ASSERT(dqp->q_res_bcount >= be64_to_cpu(dqp->q_core.d_bcount)); |
714 | ASSERT(dqp->q_res_rtbcount >= be64_to_cpu(dqp->q_core.d_rtbcount)); | |
715 | ASSERT(dqp->q_res_icount >= be64_to_cpu(dqp->q_core.d_icount)); | |
1da177e4 | 716 | |
4d1f88d7 CH |
717 | xfs_dqunlock(dqp); |
718 | return 0; | |
719 | ||
1da177e4 | 720 | error_return: |
8e9b6e7f | 721 | xfs_dqunlock(dqp); |
4d1f88d7 | 722 | if (flags & XFS_QMOPT_ENOSPC) |
2451337d DC |
723 | return -ENOSPC; |
724 | return -EDQUOT; | |
1da177e4 LT |
725 | } |
726 | ||
727 | ||
728 | /* | |
9a2a7de2 | 729 | * Given dquot(s), make disk block and/or inode reservations against them. |
92f8ff73 CS |
730 | * The fact that this does the reservation against user, group and |
731 | * project quotas is important, because this follows a all-or-nothing | |
1da177e4 LT |
732 | * approach. |
733 | * | |
8e9b6e7f | 734 | * flags = XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown. |
9a2a7de2 | 735 | * XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT. Used by pquota. |
1da177e4 LT |
736 | * XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks |
737 | * XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks | |
738 | * dquots are unlocked on return, if they were not locked by caller. | |
739 | */ | |
740 | int | |
741 | xfs_trans_reserve_quota_bydquots( | |
113a5683 CS |
742 | struct xfs_trans *tp, |
743 | struct xfs_mount *mp, | |
744 | struct xfs_dquot *udqp, | |
745 | struct xfs_dquot *gdqp, | |
92f8ff73 | 746 | struct xfs_dquot *pdqp, |
113a5683 CS |
747 | long nblks, |
748 | long ninos, | |
749 | uint flags) | |
1da177e4 | 750 | { |
113a5683 | 751 | int error; |
1da177e4 | 752 | |
7d095257 | 753 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 | 754 | return 0; |
1da177e4 LT |
755 | |
756 | if (tp && tp->t_dqinfo == NULL) | |
757 | xfs_trans_alloc_dqinfo(tp); | |
758 | ||
759 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
1da177e4 LT |
760 | |
761 | if (udqp) { | |
9a2a7de2 NS |
762 | error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, |
763 | (flags & ~XFS_QMOPT_ENOSPC)); | |
764 | if (error) | |
765 | return error; | |
1da177e4 LT |
766 | } |
767 | ||
768 | if (gdqp) { | |
9a2a7de2 | 769 | error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags); |
113a5683 CS |
770 | if (error) |
771 | goto unwind_usr; | |
1da177e4 LT |
772 | } |
773 | ||
92f8ff73 CS |
774 | if (pdqp) { |
775 | error = xfs_trans_dqresv(tp, mp, pdqp, nblks, ninos, flags); | |
776 | if (error) | |
777 | goto unwind_grp; | |
778 | } | |
779 | ||
1da177e4 | 780 | /* |
c41564b5 | 781 | * Didn't change anything critical, so, no need to log |
1da177e4 | 782 | */ |
9a2a7de2 | 783 | return 0; |
113a5683 | 784 | |
92f8ff73 CS |
785 | unwind_grp: |
786 | flags |= XFS_QMOPT_FORCE_RES; | |
787 | if (gdqp) | |
788 | xfs_trans_dqresv(tp, mp, gdqp, -nblks, -ninos, flags); | |
113a5683 CS |
789 | unwind_usr: |
790 | flags |= XFS_QMOPT_FORCE_RES; | |
791 | if (udqp) | |
792 | xfs_trans_dqresv(tp, mp, udqp, -nblks, -ninos, flags); | |
793 | return error; | |
1da177e4 LT |
794 | } |
795 | ||
796 | ||
797 | /* | |
798 | * Lock the dquot and change the reservation if we can. | |
799 | * This doesn't change the actual usage, just the reservation. | |
800 | * The inode sent in is locked. | |
1da177e4 | 801 | */ |
7d095257 | 802 | int |
1da177e4 | 803 | xfs_trans_reserve_quota_nblks( |
7d095257 CH |
804 | struct xfs_trans *tp, |
805 | struct xfs_inode *ip, | |
806 | long nblks, | |
807 | long ninos, | |
808 | uint flags) | |
1da177e4 | 809 | { |
7d095257 | 810 | struct xfs_mount *mp = ip->i_mount; |
1da177e4 | 811 | |
7d095257 | 812 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 NS |
813 | return 0; |
814 | if (XFS_IS_PQUOTA_ON(mp)) | |
815 | flags |= XFS_QMOPT_ENOSPC; | |
1da177e4 | 816 | |
9cad19d2 | 817 | ASSERT(!xfs_is_quota_inode(&mp->m_sb, ip->i_ino)); |
1da177e4 | 818 | |
579aa9ca | 819 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
9a2a7de2 NS |
820 | ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == |
821 | XFS_TRANS_DQ_RES_RTBLKS || | |
822 | (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == | |
823 | XFS_TRANS_DQ_RES_BLKS); | |
1da177e4 LT |
824 | |
825 | /* | |
826 | * Reserve nblks against these dquots, with trans as the mediator. | |
827 | */ | |
7d095257 CH |
828 | return xfs_trans_reserve_quota_bydquots(tp, mp, |
829 | ip->i_udquot, ip->i_gdquot, | |
92f8ff73 | 830 | ip->i_pdquot, |
7d095257 | 831 | nblks, ninos, flags); |
1da177e4 LT |
832 | } |
833 | ||
834 | /* | |
835 | * This routine is called to allocate a quotaoff log item. | |
836 | */ | |
837 | xfs_qoff_logitem_t * | |
838 | xfs_trans_get_qoff_item( | |
839 | xfs_trans_t *tp, | |
840 | xfs_qoff_logitem_t *startqoff, | |
841 | uint flags) | |
842 | { | |
843 | xfs_qoff_logitem_t *q; | |
844 | ||
845 | ASSERT(tp != NULL); | |
846 | ||
847 | q = xfs_qm_qoff_logitem_init(tp->t_mountp, startqoff, flags); | |
848 | ASSERT(q != NULL); | |
849 | ||
850 | /* | |
851 | * Get a log_item_desc to point at the new item. | |
852 | */ | |
e98c414f CH |
853 | xfs_trans_add_item(tp, &q->qql_item); |
854 | return q; | |
1da177e4 LT |
855 | } |
856 | ||
857 | ||
858 | /* | |
859 | * This is called to mark the quotaoff logitem as needing | |
860 | * to be logged when the transaction is committed. The logitem must | |
861 | * already be associated with the given transaction. | |
862 | */ | |
863 | void | |
864 | xfs_trans_log_quotaoff_item( | |
865 | xfs_trans_t *tp, | |
866 | xfs_qoff_logitem_t *qlp) | |
867 | { | |
1da177e4 | 868 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 869 | qlp->qql_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
870 | } |
871 | ||
872 | STATIC void | |
873 | xfs_trans_alloc_dqinfo( | |
874 | xfs_trans_t *tp) | |
875 | { | |
a05931ce | 876 | tp->t_dqinfo = kmem_zone_zalloc(xfs_qm_dqtrxzone, KM_SLEEP); |
1da177e4 LT |
877 | } |
878 | ||
7d095257 | 879 | void |
1da177e4 LT |
880 | xfs_trans_free_dqinfo( |
881 | xfs_trans_t *tp) | |
882 | { | |
883 | if (!tp->t_dqinfo) | |
884 | return; | |
a05931ce | 885 | kmem_zone_free(xfs_qm_dqtrxzone, tp->t_dqinfo); |
7d095257 | 886 | tp->t_dqinfo = NULL; |
1da177e4 | 887 | } |