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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 LT |
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 | 35 | #include "xfs_attr.h" |
239880ef | 36 | #include "xfs_trans.h" |
1da177e4 LT |
37 | #include "xfs_buf_item.h" |
38 | #include "xfs_trans_priv.h" | |
1da177e4 LT |
39 | #include "xfs_qm.h" |
40 | ||
41 | STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *); | |
42 | ||
43 | /* | |
44 | * Add the locked dquot to the transaction. | |
45 | * The dquot must be locked, and it cannot be associated with any | |
46 | * transaction. | |
47 | */ | |
48 | void | |
49 | xfs_trans_dqjoin( | |
50 | xfs_trans_t *tp, | |
51 | xfs_dquot_t *dqp) | |
52 | { | |
191f8488 | 53 | ASSERT(dqp->q_transp != tp); |
1da177e4 | 54 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
e98c414f | 55 | ASSERT(dqp->q_logitem.qli_dquot == dqp); |
1da177e4 LT |
56 | |
57 | /* | |
58 | * Get a log_item_desc to point at the new item. | |
59 | */ | |
e98c414f | 60 | xfs_trans_add_item(tp, &dqp->q_logitem.qli_item); |
1da177e4 LT |
61 | |
62 | /* | |
f3ca8738 | 63 | * Initialize d_transp so we can later determine if this dquot is |
1da177e4 LT |
64 | * associated with this transaction. |
65 | */ | |
66 | dqp->q_transp = tp; | |
67 | } | |
68 | ||
69 | ||
70 | /* | |
71 | * This is called to mark the dquot as needing | |
72 | * to be logged when the transaction is committed. The dquot must | |
73 | * already be associated with the given transaction. | |
74 | * Note that it marks the entire transaction as dirty. In the ordinary | |
75 | * case, this gets called via xfs_trans_commit, after the transaction | |
76 | * is already dirty. However, there's nothing stop this from getting | |
77 | * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY | |
78 | * flag. | |
79 | */ | |
80 | void | |
81 | xfs_trans_log_dquot( | |
82 | xfs_trans_t *tp, | |
83 | xfs_dquot_t *dqp) | |
84 | { | |
191f8488 | 85 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
86 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
87 | ||
1da177e4 | 88 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 89 | dqp->q_logitem.qli_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
90 | } |
91 | ||
92 | /* | |
93 | * Carry forward whatever is left of the quota blk reservation to | |
94 | * the spanky new transaction | |
95 | */ | |
7d095257 | 96 | void |
1da177e4 LT |
97 | xfs_trans_dup_dqinfo( |
98 | xfs_trans_t *otp, | |
99 | xfs_trans_t *ntp) | |
100 | { | |
101 | xfs_dqtrx_t *oq, *nq; | |
102 | int i,j; | |
103 | xfs_dqtrx_t *oqa, *nqa; | |
104 | ||
105 | if (!otp->t_dqinfo) | |
106 | return; | |
107 | ||
108 | xfs_trans_alloc_dqinfo(ntp); | |
1da177e4 LT |
109 | |
110 | /* | |
111 | * Because the quota blk reservation is carried forward, | |
112 | * it is also necessary to carry forward the DQ_DIRTY flag. | |
113 | */ | |
114 | if(otp->t_flags & XFS_TRANS_DQ_DIRTY) | |
115 | ntp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
116 | ||
0e6436d9 CS |
117 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
118 | oqa = otp->t_dqinfo->dqs[j]; | |
119 | nqa = ntp->t_dqinfo->dqs[j]; | |
1da177e4 LT |
120 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
121 | if (oqa[i].qt_dquot == NULL) | |
122 | break; | |
123 | oq = &oqa[i]; | |
124 | nq = &nqa[i]; | |
125 | ||
126 | nq->qt_dquot = oq->qt_dquot; | |
127 | nq->qt_bcount_delta = nq->qt_icount_delta = 0; | |
128 | nq->qt_rtbcount_delta = 0; | |
129 | ||
130 | /* | |
131 | * Transfer whatever is left of the reservations. | |
132 | */ | |
133 | nq->qt_blk_res = oq->qt_blk_res - oq->qt_blk_res_used; | |
134 | oq->qt_blk_res = oq->qt_blk_res_used; | |
135 | ||
136 | nq->qt_rtblk_res = oq->qt_rtblk_res - | |
137 | oq->qt_rtblk_res_used; | |
138 | oq->qt_rtblk_res = oq->qt_rtblk_res_used; | |
139 | ||
140 | nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used; | |
141 | oq->qt_ino_res = oq->qt_ino_res_used; | |
142 | ||
143 | } | |
1da177e4 LT |
144 | } |
145 | } | |
146 | ||
147 | /* | |
148 | * Wrap around mod_dquot to account for both user and group quotas. | |
149 | */ | |
7d095257 | 150 | void |
1da177e4 LT |
151 | xfs_trans_mod_dquot_byino( |
152 | xfs_trans_t *tp, | |
153 | xfs_inode_t *ip, | |
154 | uint field, | |
155 | long delta) | |
156 | { | |
7d095257 | 157 | xfs_mount_t *mp = tp->t_mountp; |
1da177e4 | 158 | |
7d095257 CH |
159 | if (!XFS_IS_QUOTA_RUNNING(mp) || |
160 | !XFS_IS_QUOTA_ON(mp) || | |
9cad19d2 | 161 | xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
1da177e4 LT |
162 | return; |
163 | ||
164 | if (tp->t_dqinfo == NULL) | |
165 | xfs_trans_alloc_dqinfo(tp); | |
166 | ||
c8ad20ff | 167 | if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) |
1da177e4 | 168 | (void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta); |
92f8ff73 | 169 | if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot) |
1da177e4 | 170 | (void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta); |
92f8ff73 CS |
171 | if (XFS_IS_PQUOTA_ON(mp) && ip->i_pdquot) |
172 | (void) xfs_trans_mod_dquot(tp, ip->i_pdquot, field, delta); | |
1da177e4 LT |
173 | } |
174 | ||
113a5683 | 175 | STATIC struct xfs_dqtrx * |
1da177e4 | 176 | xfs_trans_get_dqtrx( |
113a5683 CS |
177 | struct xfs_trans *tp, |
178 | struct xfs_dquot *dqp) | |
1da177e4 | 179 | { |
113a5683 CS |
180 | int i; |
181 | struct xfs_dqtrx *qa; | |
1da177e4 | 182 | |
0e6436d9 CS |
183 | if (XFS_QM_ISUDQ(dqp)) |
184 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_USR]; | |
92f8ff73 | 185 | else if (XFS_QM_ISGDQ(dqp)) |
0e6436d9 | 186 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_GRP]; |
92f8ff73 CS |
187 | else if (XFS_QM_ISPDQ(dqp)) |
188 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_PRJ]; | |
189 | else | |
190 | return NULL; | |
1da177e4 | 191 | |
191f8488 | 192 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
1da177e4 | 193 | if (qa[i].qt_dquot == NULL || |
191f8488 CH |
194 | qa[i].qt_dquot == dqp) |
195 | return &qa[i]; | |
1da177e4 LT |
196 | } |
197 | ||
191f8488 | 198 | return NULL; |
1da177e4 LT |
199 | } |
200 | ||
201 | /* | |
202 | * Make the changes in the transaction structure. | |
203 | * The moral equivalent to xfs_trans_mod_sb(). | |
204 | * We don't touch any fields in the dquot, so we don't care | |
205 | * if it's locked or not (most of the time it won't be). | |
206 | */ | |
207 | void | |
208 | xfs_trans_mod_dquot( | |
209 | xfs_trans_t *tp, | |
210 | xfs_dquot_t *dqp, | |
211 | uint field, | |
212 | long delta) | |
213 | { | |
214 | xfs_dqtrx_t *qtrx; | |
215 | ||
216 | ASSERT(tp); | |
7d095257 | 217 | ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp)); |
1da177e4 LT |
218 | qtrx = NULL; |
219 | ||
220 | if (tp->t_dqinfo == NULL) | |
221 | xfs_trans_alloc_dqinfo(tp); | |
222 | /* | |
223 | * Find either the first free slot or the slot that belongs | |
224 | * to this dquot. | |
225 | */ | |
226 | qtrx = xfs_trans_get_dqtrx(tp, dqp); | |
227 | ASSERT(qtrx); | |
228 | if (qtrx->qt_dquot == NULL) | |
229 | qtrx->qt_dquot = dqp; | |
230 | ||
231 | switch (field) { | |
232 | ||
233 | /* | |
234 | * regular disk blk reservation | |
235 | */ | |
236 | case XFS_TRANS_DQ_RES_BLKS: | |
237 | qtrx->qt_blk_res += (ulong)delta; | |
238 | break; | |
239 | ||
240 | /* | |
241 | * inode reservation | |
242 | */ | |
243 | case XFS_TRANS_DQ_RES_INOS: | |
244 | qtrx->qt_ino_res += (ulong)delta; | |
245 | break; | |
246 | ||
247 | /* | |
248 | * disk blocks used. | |
249 | */ | |
250 | case XFS_TRANS_DQ_BCOUNT: | |
251 | if (qtrx->qt_blk_res && delta > 0) { | |
252 | qtrx->qt_blk_res_used += (ulong)delta; | |
253 | ASSERT(qtrx->qt_blk_res >= qtrx->qt_blk_res_used); | |
254 | } | |
255 | qtrx->qt_bcount_delta += delta; | |
256 | break; | |
257 | ||
258 | case XFS_TRANS_DQ_DELBCOUNT: | |
259 | qtrx->qt_delbcnt_delta += delta; | |
260 | break; | |
261 | ||
262 | /* | |
263 | * Inode Count | |
264 | */ | |
265 | case XFS_TRANS_DQ_ICOUNT: | |
266 | if (qtrx->qt_ino_res && delta > 0) { | |
267 | qtrx->qt_ino_res_used += (ulong)delta; | |
268 | ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used); | |
269 | } | |
270 | qtrx->qt_icount_delta += delta; | |
271 | break; | |
272 | ||
273 | /* | |
274 | * rtblk reservation | |
275 | */ | |
276 | case XFS_TRANS_DQ_RES_RTBLKS: | |
277 | qtrx->qt_rtblk_res += (ulong)delta; | |
278 | break; | |
279 | ||
280 | /* | |
281 | * rtblk count | |
282 | */ | |
283 | case XFS_TRANS_DQ_RTBCOUNT: | |
284 | if (qtrx->qt_rtblk_res && delta > 0) { | |
285 | qtrx->qt_rtblk_res_used += (ulong)delta; | |
286 | ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used); | |
287 | } | |
288 | qtrx->qt_rtbcount_delta += delta; | |
289 | break; | |
290 | ||
291 | case XFS_TRANS_DQ_DELRTBCOUNT: | |
292 | qtrx->qt_delrtb_delta += delta; | |
293 | break; | |
294 | ||
295 | default: | |
296 | ASSERT(0); | |
297 | } | |
298 | tp->t_flags |= XFS_TRANS_DQ_DIRTY; | |
299 | } | |
300 | ||
301 | ||
302 | /* | |
b0a9dab7 DC |
303 | * Given an array of dqtrx structures, lock all the dquots associated and join |
304 | * them to the transaction, provided they have been modified. We know that the | |
305 | * highest number of dquots of one type - usr, grp OR prj - involved in a | |
306 | * transaction is 2 so we don't need to make this very generic. | |
1da177e4 LT |
307 | */ |
308 | STATIC void | |
309 | xfs_trans_dqlockedjoin( | |
310 | xfs_trans_t *tp, | |
311 | xfs_dqtrx_t *q) | |
312 | { | |
313 | ASSERT(q[0].qt_dquot != NULL); | |
314 | if (q[1].qt_dquot == NULL) { | |
315 | xfs_dqlock(q[0].qt_dquot); | |
316 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
317 | } else { | |
318 | ASSERT(XFS_QM_TRANS_MAXDQS == 2); | |
319 | xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot); | |
320 | xfs_trans_dqjoin(tp, q[0].qt_dquot); | |
321 | xfs_trans_dqjoin(tp, q[1].qt_dquot); | |
322 | } | |
323 | } | |
324 | ||
325 | ||
326 | /* | |
327 | * Called by xfs_trans_commit() and similar in spirit to | |
328 | * xfs_trans_apply_sb_deltas(). | |
329 | * Go thru all the dquots belonging to this transaction and modify the | |
330 | * INCORE dquot to reflect the actual usages. | |
331 | * Unreserve just the reservations done by this transaction. | |
332 | * dquot is still left locked at exit. | |
333 | */ | |
7d095257 | 334 | void |
1da177e4 | 335 | xfs_trans_apply_dquot_deltas( |
4b6eae2e | 336 | struct xfs_trans *tp) |
1da177e4 LT |
337 | { |
338 | int i, j; | |
4b6eae2e BF |
339 | struct xfs_dquot *dqp; |
340 | struct xfs_dqtrx *qtrx, *qa; | |
341 | struct xfs_disk_dquot *d; | |
1da177e4 LT |
342 | long totalbdelta; |
343 | long totalrtbdelta; | |
344 | ||
7d095257 | 345 | if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY)) |
1da177e4 LT |
346 | return; |
347 | ||
348 | ASSERT(tp->t_dqinfo); | |
0e6436d9 CS |
349 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
350 | qa = tp->t_dqinfo->dqs[j]; | |
351 | if (qa[0].qt_dquot == NULL) | |
1da177e4 | 352 | continue; |
1da177e4 LT |
353 | |
354 | /* | |
355 | * Lock all of the dquots and join them to the transaction. | |
356 | */ | |
357 | xfs_trans_dqlockedjoin(tp, qa); | |
358 | ||
359 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { | |
360 | qtrx = &qa[i]; | |
361 | /* | |
362 | * The array of dquots is filled | |
363 | * sequentially, not sparsely. | |
364 | */ | |
365 | if ((dqp = qtrx->qt_dquot) == NULL) | |
366 | break; | |
367 | ||
368 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); | |
191f8488 | 369 | ASSERT(dqp->q_transp == tp); |
1da177e4 LT |
370 | |
371 | /* | |
372 | * adjust the actual number of blocks used | |
373 | */ | |
374 | d = &dqp->q_core; | |
375 | ||
376 | /* | |
377 | * The issue here is - sometimes we don't make a blkquota | |
378 | * reservation intentionally to be fair to users | |
379 | * (when the amount is small). On the other hand, | |
380 | * delayed allocs do make reservations, but that's | |
381 | * outside of a transaction, so we have no | |
382 | * idea how much was really reserved. | |
383 | * So, here we've accumulated delayed allocation blks and | |
384 | * non-delay blks. The assumption is that the | |
385 | * delayed ones are always reserved (outside of a | |
386 | * transaction), and the others may or may not have | |
387 | * quota reservations. | |
388 | */ | |
389 | totalbdelta = qtrx->qt_bcount_delta + | |
390 | qtrx->qt_delbcnt_delta; | |
391 | totalrtbdelta = qtrx->qt_rtbcount_delta + | |
392 | qtrx->qt_delrtb_delta; | |
ea15ab3c | 393 | #ifdef DEBUG |
1da177e4 | 394 | if (totalbdelta < 0) |
1149d96a | 395 | ASSERT(be64_to_cpu(d->d_bcount) >= |
ea15ab3c | 396 | -totalbdelta); |
1da177e4 LT |
397 | |
398 | if (totalrtbdelta < 0) | |
1149d96a | 399 | ASSERT(be64_to_cpu(d->d_rtbcount) >= |
ea15ab3c | 400 | -totalrtbdelta); |
1da177e4 LT |
401 | |
402 | if (qtrx->qt_icount_delta < 0) | |
1149d96a | 403 | ASSERT(be64_to_cpu(d->d_icount) >= |
ea15ab3c | 404 | -qtrx->qt_icount_delta); |
1da177e4 LT |
405 | #endif |
406 | if (totalbdelta) | |
413d57c9 | 407 | be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta); |
1da177e4 LT |
408 | |
409 | if (qtrx->qt_icount_delta) | |
413d57c9 | 410 | be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta); |
1da177e4 LT |
411 | |
412 | if (totalrtbdelta) | |
413d57c9 | 413 | be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta); |
1da177e4 LT |
414 | |
415 | /* | |
416 | * Get any default limits in use. | |
417 | * Start/reset the timer(s) if needed. | |
418 | */ | |
419 | if (d->d_id) { | |
4b6eae2e | 420 | xfs_qm_adjust_dqlimits(tp->t_mountp, dqp); |
1da177e4 LT |
421 | xfs_qm_adjust_dqtimers(tp->t_mountp, d); |
422 | } | |
423 | ||
424 | dqp->dq_flags |= XFS_DQ_DIRTY; | |
425 | /* | |
426 | * add this to the list of items to get logged | |
427 | */ | |
428 | xfs_trans_log_dquot(tp, dqp); | |
429 | /* | |
430 | * Take off what's left of the original reservation. | |
431 | * In case of delayed allocations, there's no | |
432 | * reservation that a transaction structure knows of. | |
433 | */ | |
434 | if (qtrx->qt_blk_res != 0) { | |
435 | if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) { | |
436 | if (qtrx->qt_blk_res > | |
437 | qtrx->qt_blk_res_used) | |
438 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
439 | (qtrx->qt_blk_res - | |
440 | qtrx->qt_blk_res_used); | |
441 | else | |
442 | dqp->q_res_bcount -= (xfs_qcnt_t) | |
443 | (qtrx->qt_blk_res_used - | |
444 | qtrx->qt_blk_res); | |
445 | } | |
446 | } else { | |
447 | /* | |
448 | * These blks were never reserved, either inside | |
449 | * a transaction or outside one (in a delayed | |
450 | * allocation). Also, this isn't always a | |
451 | * negative number since we sometimes | |
452 | * deliberately skip quota reservations. | |
453 | */ | |
454 | if (qtrx->qt_bcount_delta) { | |
455 | dqp->q_res_bcount += | |
456 | (xfs_qcnt_t)qtrx->qt_bcount_delta; | |
457 | } | |
458 | } | |
459 | /* | |
460 | * Adjust the RT reservation. | |
461 | */ | |
462 | if (qtrx->qt_rtblk_res != 0) { | |
06d10dd9 | 463 | if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) { |
1da177e4 LT |
464 | if (qtrx->qt_rtblk_res > |
465 | qtrx->qt_rtblk_res_used) | |
466 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
467 | (qtrx->qt_rtblk_res - | |
468 | qtrx->qt_rtblk_res_used); | |
469 | else | |
470 | dqp->q_res_rtbcount -= (xfs_qcnt_t) | |
471 | (qtrx->qt_rtblk_res_used - | |
472 | qtrx->qt_rtblk_res); | |
473 | } | |
474 | } else { | |
475 | if (qtrx->qt_rtbcount_delta) | |
476 | dqp->q_res_rtbcount += | |
477 | (xfs_qcnt_t)qtrx->qt_rtbcount_delta; | |
478 | } | |
479 | ||
480 | /* | |
481 | * Adjust the inode reservation. | |
482 | */ | |
483 | if (qtrx->qt_ino_res != 0) { | |
484 | ASSERT(qtrx->qt_ino_res >= | |
485 | qtrx->qt_ino_res_used); | |
486 | if (qtrx->qt_ino_res > qtrx->qt_ino_res_used) | |
487 | dqp->q_res_icount -= (xfs_qcnt_t) | |
488 | (qtrx->qt_ino_res - | |
489 | qtrx->qt_ino_res_used); | |
490 | } else { | |
491 | if (qtrx->qt_icount_delta) | |
492 | dqp->q_res_icount += | |
493 | (xfs_qcnt_t)qtrx->qt_icount_delta; | |
494 | } | |
495 | ||
1da177e4 | 496 | ASSERT(dqp->q_res_bcount >= |
1149d96a | 497 | be64_to_cpu(dqp->q_core.d_bcount)); |
1da177e4 | 498 | ASSERT(dqp->q_res_icount >= |
1149d96a | 499 | be64_to_cpu(dqp->q_core.d_icount)); |
1da177e4 | 500 | ASSERT(dqp->q_res_rtbcount >= |
1149d96a | 501 | be64_to_cpu(dqp->q_core.d_rtbcount)); |
1da177e4 | 502 | } |
1da177e4 LT |
503 | } |
504 | } | |
505 | ||
506 | /* | |
507 | * Release the reservations, and adjust the dquots accordingly. | |
508 | * This is called only when the transaction is being aborted. If by | |
509 | * any chance we have done dquot modifications incore (ie. deltas) already, | |
510 | * we simply throw those away, since that's the expected behavior | |
511 | * when a transaction is curtailed without a commit. | |
512 | */ | |
7d095257 | 513 | void |
1da177e4 LT |
514 | xfs_trans_unreserve_and_mod_dquots( |
515 | xfs_trans_t *tp) | |
516 | { | |
517 | int i, j; | |
518 | xfs_dquot_t *dqp; | |
519 | xfs_dqtrx_t *qtrx, *qa; | |
667a9291 | 520 | bool locked; |
1da177e4 LT |
521 | |
522 | if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY)) | |
523 | return; | |
524 | ||
0e6436d9 CS |
525 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
526 | qa = tp->t_dqinfo->dqs[j]; | |
1da177e4 | 527 | |
1da177e4 LT |
528 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
529 | qtrx = &qa[i]; | |
530 | /* | |
531 | * We assume that the array of dquots is filled | |
532 | * sequentially, not sparsely. | |
533 | */ | |
534 | if ((dqp = qtrx->qt_dquot) == NULL) | |
535 | break; | |
536 | /* | |
537 | * Unreserve the original reservation. We don't care | |
538 | * about the number of blocks used field, or deltas. | |
539 | * Also we don't bother to zero the fields. | |
540 | */ | |
667a9291 | 541 | locked = false; |
1da177e4 LT |
542 | if (qtrx->qt_blk_res) { |
543 | xfs_dqlock(dqp); | |
667a9291 | 544 | locked = true; |
1da177e4 LT |
545 | dqp->q_res_bcount -= |
546 | (xfs_qcnt_t)qtrx->qt_blk_res; | |
547 | } | |
548 | if (qtrx->qt_ino_res) { | |
549 | if (!locked) { | |
550 | xfs_dqlock(dqp); | |
667a9291 | 551 | locked = true; |
1da177e4 LT |
552 | } |
553 | dqp->q_res_icount -= | |
554 | (xfs_qcnt_t)qtrx->qt_ino_res; | |
555 | } | |
556 | ||
557 | if (qtrx->qt_rtblk_res) { | |
558 | if (!locked) { | |
559 | xfs_dqlock(dqp); | |
667a9291 | 560 | locked = true; |
1da177e4 LT |
561 | } |
562 | dqp->q_res_rtbcount -= | |
563 | (xfs_qcnt_t)qtrx->qt_rtblk_res; | |
564 | } | |
565 | if (locked) | |
566 | xfs_dqunlock(dqp); | |
567 | ||
568 | } | |
1da177e4 LT |
569 | } |
570 | } | |
571 | ||
a210c1aa CH |
572 | STATIC void |
573 | xfs_quota_warn( | |
574 | struct xfs_mount *mp, | |
575 | struct xfs_dquot *dqp, | |
576 | int type) | |
577 | { | |
578 | /* no warnings for project quotas - we just return ENOSPC later */ | |
579 | if (dqp->dq_flags & XFS_DQ_PROJ) | |
580 | return; | |
431f1974 EB |
581 | quota_send_warning(make_kqid(&init_user_ns, |
582 | (dqp->dq_flags & XFS_DQ_USER) ? | |
583 | USRQUOTA : GRPQUOTA, | |
584 | be32_to_cpu(dqp->q_core.d_id)), | |
585 | mp->m_super->s_dev, type); | |
a210c1aa CH |
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 | 642 | ((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) || |
83e782e1 CS |
643 | (XFS_IS_GQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISGDQ(dqp)) || |
644 | (XFS_IS_PQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISPDQ(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. |
92f8ff73 CS |
739 | * The fact that this does the reservation against user, group and |
740 | * project quotas is important, because this follows a all-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( | |
113a5683 CS |
751 | struct xfs_trans *tp, |
752 | struct xfs_mount *mp, | |
753 | struct xfs_dquot *udqp, | |
754 | struct xfs_dquot *gdqp, | |
92f8ff73 | 755 | struct xfs_dquot *pdqp, |
113a5683 CS |
756 | long nblks, |
757 | long ninos, | |
758 | uint flags) | |
1da177e4 | 759 | { |
113a5683 | 760 | int error; |
1da177e4 | 761 | |
7d095257 | 762 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 | 763 | return 0; |
1da177e4 LT |
764 | |
765 | if (tp && tp->t_dqinfo == NULL) | |
766 | xfs_trans_alloc_dqinfo(tp); | |
767 | ||
768 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); | |
1da177e4 LT |
769 | |
770 | if (udqp) { | |
9a2a7de2 NS |
771 | error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, |
772 | (flags & ~XFS_QMOPT_ENOSPC)); | |
773 | if (error) | |
774 | return error; | |
1da177e4 LT |
775 | } |
776 | ||
777 | if (gdqp) { | |
9a2a7de2 | 778 | error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags); |
113a5683 CS |
779 | if (error) |
780 | goto unwind_usr; | |
1da177e4 LT |
781 | } |
782 | ||
92f8ff73 CS |
783 | if (pdqp) { |
784 | error = xfs_trans_dqresv(tp, mp, pdqp, nblks, ninos, flags); | |
785 | if (error) | |
786 | goto unwind_grp; | |
787 | } | |
788 | ||
1da177e4 | 789 | /* |
c41564b5 | 790 | * Didn't change anything critical, so, no need to log |
1da177e4 | 791 | */ |
9a2a7de2 | 792 | return 0; |
113a5683 | 793 | |
92f8ff73 CS |
794 | unwind_grp: |
795 | flags |= XFS_QMOPT_FORCE_RES; | |
796 | if (gdqp) | |
797 | xfs_trans_dqresv(tp, mp, gdqp, -nblks, -ninos, flags); | |
113a5683 CS |
798 | unwind_usr: |
799 | flags |= XFS_QMOPT_FORCE_RES; | |
800 | if (udqp) | |
801 | xfs_trans_dqresv(tp, mp, udqp, -nblks, -ninos, flags); | |
802 | return error; | |
1da177e4 LT |
803 | } |
804 | ||
805 | ||
806 | /* | |
807 | * Lock the dquot and change the reservation if we can. | |
808 | * This doesn't change the actual usage, just the reservation. | |
809 | * The inode sent in is locked. | |
1da177e4 | 810 | */ |
7d095257 | 811 | int |
1da177e4 | 812 | xfs_trans_reserve_quota_nblks( |
7d095257 CH |
813 | struct xfs_trans *tp, |
814 | struct xfs_inode *ip, | |
815 | long nblks, | |
816 | long ninos, | |
817 | uint flags) | |
1da177e4 | 818 | { |
7d095257 | 819 | struct xfs_mount *mp = ip->i_mount; |
1da177e4 | 820 | |
7d095257 | 821 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
9a2a7de2 NS |
822 | return 0; |
823 | if (XFS_IS_PQUOTA_ON(mp)) | |
824 | flags |= XFS_QMOPT_ENOSPC; | |
1da177e4 | 825 | |
9cad19d2 | 826 | ASSERT(!xfs_is_quota_inode(&mp->m_sb, ip->i_ino)); |
1da177e4 | 827 | |
579aa9ca | 828 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
9a2a7de2 NS |
829 | ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == |
830 | XFS_TRANS_DQ_RES_RTBLKS || | |
831 | (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == | |
832 | XFS_TRANS_DQ_RES_BLKS); | |
1da177e4 LT |
833 | |
834 | /* | |
835 | * Reserve nblks against these dquots, with trans as the mediator. | |
836 | */ | |
7d095257 CH |
837 | return xfs_trans_reserve_quota_bydquots(tp, mp, |
838 | ip->i_udquot, ip->i_gdquot, | |
92f8ff73 | 839 | ip->i_pdquot, |
7d095257 | 840 | nblks, ninos, flags); |
1da177e4 LT |
841 | } |
842 | ||
843 | /* | |
844 | * This routine is called to allocate a quotaoff log item. | |
845 | */ | |
846 | xfs_qoff_logitem_t * | |
847 | xfs_trans_get_qoff_item( | |
848 | xfs_trans_t *tp, | |
849 | xfs_qoff_logitem_t *startqoff, | |
850 | uint flags) | |
851 | { | |
852 | xfs_qoff_logitem_t *q; | |
853 | ||
854 | ASSERT(tp != NULL); | |
855 | ||
856 | q = xfs_qm_qoff_logitem_init(tp->t_mountp, startqoff, flags); | |
857 | ASSERT(q != NULL); | |
858 | ||
859 | /* | |
860 | * Get a log_item_desc to point at the new item. | |
861 | */ | |
e98c414f CH |
862 | xfs_trans_add_item(tp, &q->qql_item); |
863 | return q; | |
1da177e4 LT |
864 | } |
865 | ||
866 | ||
867 | /* | |
868 | * This is called to mark the quotaoff logitem as needing | |
869 | * to be logged when the transaction is committed. The logitem must | |
870 | * already be associated with the given transaction. | |
871 | */ | |
872 | void | |
873 | xfs_trans_log_quotaoff_item( | |
874 | xfs_trans_t *tp, | |
875 | xfs_qoff_logitem_t *qlp) | |
876 | { | |
1da177e4 | 877 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 878 | qlp->qql_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
879 | } |
880 | ||
881 | STATIC void | |
882 | xfs_trans_alloc_dqinfo( | |
883 | xfs_trans_t *tp) | |
884 | { | |
a05931ce | 885 | tp->t_dqinfo = kmem_zone_zalloc(xfs_qm_dqtrxzone, KM_SLEEP); |
1da177e4 LT |
886 | } |
887 | ||
7d095257 | 888 | void |
1da177e4 LT |
889 | xfs_trans_free_dqinfo( |
890 | xfs_trans_t *tp) | |
891 | { | |
892 | if (!tp->t_dqinfo) | |
893 | return; | |
a05931ce | 894 | kmem_zone_free(xfs_qm_dqtrxzone, tp->t_dqinfo); |
7d095257 | 895 | tp->t_dqinfo = NULL; |
1da177e4 | 896 | } |