Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Nathan Scott | 4ce3121 | 2005-11-02 14:59:41 +1100 | [diff] [blame] | 2 | * Copyright (c) 2000-2002 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
Nathan Scott | 4ce3121 | 2005-11-02 14:59:41 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * published by the Free Software Foundation. |
| 8 | * |
Nathan Scott | 4ce3121 | 2005-11-02 14:59:41 +1100 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | * |
Nathan Scott | 4ce3121 | 2005-11-02 14:59:41 +1100 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #include "xfs.h" |
| 19 | #include "xfs_fs.h" |
Dave Chinner | 70a9883c | 2013-10-23 10:36:05 +1100 | [diff] [blame] | 20 | #include "xfs_shared.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 21 | #include "xfs_format.h" |
| 22 | #include "xfs_log_format.h" |
| 23 | #include "xfs_trans_resv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include "xfs_sb.h" |
| 25 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include "xfs_mount.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include "xfs_inode.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include "xfs_error.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 29 | #include "xfs_trans.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include "xfs_trans_priv.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 31 | #include "xfs_quota.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include "xfs_qm.h" |
| 33 | |
| 34 | STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *); |
| 35 | |
| 36 | /* |
| 37 | * Add the locked dquot to the transaction. |
| 38 | * The dquot must be locked, and it cannot be associated with any |
| 39 | * transaction. |
| 40 | */ |
| 41 | void |
| 42 | xfs_trans_dqjoin( |
| 43 | xfs_trans_t *tp, |
| 44 | xfs_dquot_t *dqp) |
| 45 | { |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 46 | ASSERT(dqp->q_transp != tp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 48 | ASSERT(dqp->q_logitem.qli_dquot == dqp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | |
| 50 | /* |
| 51 | * Get a log_item_desc to point at the new item. |
| 52 | */ |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 53 | xfs_trans_add_item(tp, &dqp->q_logitem.qli_item); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | |
| 55 | /* |
Christoph Hellwig | f3ca8738 | 2011-07-08 14:34:47 +0200 | [diff] [blame] | 56 | * Initialize d_transp so we can later determine if this dquot is |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | * associated with this transaction. |
| 58 | */ |
| 59 | dqp->q_transp = tp; |
| 60 | } |
| 61 | |
| 62 | |
| 63 | /* |
| 64 | * This is called to mark the dquot as needing |
| 65 | * to be logged when the transaction is committed. The dquot must |
| 66 | * already be associated with the given transaction. |
| 67 | * Note that it marks the entire transaction as dirty. In the ordinary |
| 68 | * case, this gets called via xfs_trans_commit, after the transaction |
| 69 | * is already dirty. However, there's nothing stop this from getting |
| 70 | * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY |
| 71 | * flag. |
| 72 | */ |
| 73 | void |
| 74 | xfs_trans_log_dquot( |
| 75 | xfs_trans_t *tp, |
| 76 | xfs_dquot_t *dqp) |
| 77 | { |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 78 | ASSERT(dqp->q_transp == tp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
| 80 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | tp->t_flags |= XFS_TRANS_DIRTY; |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 82 | dqp->q_logitem.qli_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | } |
| 84 | |
| 85 | /* |
| 86 | * Carry forward whatever is left of the quota blk reservation to |
| 87 | * the spanky new transaction |
| 88 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 89 | void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | xfs_trans_dup_dqinfo( |
| 91 | xfs_trans_t *otp, |
| 92 | xfs_trans_t *ntp) |
| 93 | { |
| 94 | xfs_dqtrx_t *oq, *nq; |
| 95 | int i,j; |
| 96 | xfs_dqtrx_t *oqa, *nqa; |
| 97 | |
| 98 | if (!otp->t_dqinfo) |
| 99 | return; |
| 100 | |
| 101 | xfs_trans_alloc_dqinfo(ntp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
| 103 | /* |
| 104 | * Because the quota blk reservation is carried forward, |
| 105 | * it is also necessary to carry forward the DQ_DIRTY flag. |
| 106 | */ |
| 107 | if(otp->t_flags & XFS_TRANS_DQ_DIRTY) |
| 108 | ntp->t_flags |= XFS_TRANS_DQ_DIRTY; |
| 109 | |
Chandra Seetharaman | 0e6436d | 2013-06-27 17:25:09 -0500 | [diff] [blame] | 110 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
| 111 | oqa = otp->t_dqinfo->dqs[j]; |
| 112 | nqa = ntp->t_dqinfo->dqs[j]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
| 114 | if (oqa[i].qt_dquot == NULL) |
| 115 | break; |
| 116 | oq = &oqa[i]; |
| 117 | nq = &nqa[i]; |
| 118 | |
| 119 | nq->qt_dquot = oq->qt_dquot; |
| 120 | nq->qt_bcount_delta = nq->qt_icount_delta = 0; |
| 121 | nq->qt_rtbcount_delta = 0; |
| 122 | |
| 123 | /* |
| 124 | * Transfer whatever is left of the reservations. |
| 125 | */ |
| 126 | nq->qt_blk_res = oq->qt_blk_res - oq->qt_blk_res_used; |
| 127 | oq->qt_blk_res = oq->qt_blk_res_used; |
| 128 | |
| 129 | nq->qt_rtblk_res = oq->qt_rtblk_res - |
| 130 | oq->qt_rtblk_res_used; |
| 131 | oq->qt_rtblk_res = oq->qt_rtblk_res_used; |
| 132 | |
| 133 | nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used; |
| 134 | oq->qt_ino_res = oq->qt_ino_res_used; |
| 135 | |
| 136 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 137 | } |
| 138 | } |
| 139 | |
| 140 | /* |
| 141 | * Wrap around mod_dquot to account for both user and group quotas. |
| 142 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 143 | void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | xfs_trans_mod_dquot_byino( |
| 145 | xfs_trans_t *tp, |
| 146 | xfs_inode_t *ip, |
| 147 | uint field, |
| 148 | long delta) |
| 149 | { |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 150 | xfs_mount_t *mp = tp->t_mountp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 151 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 152 | if (!XFS_IS_QUOTA_RUNNING(mp) || |
| 153 | !XFS_IS_QUOTA_ON(mp) || |
Chandra Seetharaman | 9cad19d | 2013-06-27 17:25:04 -0500 | [diff] [blame] | 154 | xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | return; |
| 156 | |
| 157 | if (tp->t_dqinfo == NULL) |
| 158 | xfs_trans_alloc_dqinfo(tp); |
| 159 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 160 | if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | (void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 162 | if (XFS_IS_GQUOTA_ON(mp) && ip->i_gdquot) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | (void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 164 | if (XFS_IS_PQUOTA_ON(mp) && ip->i_pdquot) |
| 165 | (void) xfs_trans_mod_dquot(tp, ip->i_pdquot, field, delta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | } |
| 167 | |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 168 | STATIC struct xfs_dqtrx * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 169 | xfs_trans_get_dqtrx( |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 170 | struct xfs_trans *tp, |
| 171 | struct xfs_dquot *dqp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | { |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 173 | int i; |
| 174 | struct xfs_dqtrx *qa; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 175 | |
Chandra Seetharaman | 0e6436d | 2013-06-27 17:25:09 -0500 | [diff] [blame] | 176 | if (XFS_QM_ISUDQ(dqp)) |
| 177 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_USR]; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 178 | else if (XFS_QM_ISGDQ(dqp)) |
Chandra Seetharaman | 0e6436d | 2013-06-27 17:25:09 -0500 | [diff] [blame] | 179 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_GRP]; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 180 | else if (XFS_QM_ISPDQ(dqp)) |
| 181 | qa = tp->t_dqinfo->dqs[XFS_QM_TRANS_PRJ]; |
| 182 | else |
| 183 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 185 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | if (qa[i].qt_dquot == NULL || |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 187 | qa[i].qt_dquot == dqp) |
| 188 | return &qa[i]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | } |
| 190 | |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 191 | return NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | /* |
| 195 | * Make the changes in the transaction structure. |
| 196 | * The moral equivalent to xfs_trans_mod_sb(). |
| 197 | * We don't touch any fields in the dquot, so we don't care |
| 198 | * if it's locked or not (most of the time it won't be). |
| 199 | */ |
| 200 | void |
| 201 | xfs_trans_mod_dquot( |
| 202 | xfs_trans_t *tp, |
| 203 | xfs_dquot_t *dqp, |
| 204 | uint field, |
| 205 | long delta) |
| 206 | { |
| 207 | xfs_dqtrx_t *qtrx; |
| 208 | |
| 209 | ASSERT(tp); |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 210 | ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | qtrx = NULL; |
| 212 | |
| 213 | if (tp->t_dqinfo == NULL) |
| 214 | xfs_trans_alloc_dqinfo(tp); |
| 215 | /* |
| 216 | * Find either the first free slot or the slot that belongs |
| 217 | * to this dquot. |
| 218 | */ |
| 219 | qtrx = xfs_trans_get_dqtrx(tp, dqp); |
| 220 | ASSERT(qtrx); |
| 221 | if (qtrx->qt_dquot == NULL) |
| 222 | qtrx->qt_dquot = dqp; |
| 223 | |
| 224 | switch (field) { |
| 225 | |
| 226 | /* |
| 227 | * regular disk blk reservation |
| 228 | */ |
| 229 | case XFS_TRANS_DQ_RES_BLKS: |
| 230 | qtrx->qt_blk_res += (ulong)delta; |
| 231 | break; |
| 232 | |
| 233 | /* |
| 234 | * inode reservation |
| 235 | */ |
| 236 | case XFS_TRANS_DQ_RES_INOS: |
| 237 | qtrx->qt_ino_res += (ulong)delta; |
| 238 | break; |
| 239 | |
| 240 | /* |
| 241 | * disk blocks used. |
| 242 | */ |
| 243 | case XFS_TRANS_DQ_BCOUNT: |
| 244 | if (qtrx->qt_blk_res && delta > 0) { |
| 245 | qtrx->qt_blk_res_used += (ulong)delta; |
| 246 | ASSERT(qtrx->qt_blk_res >= qtrx->qt_blk_res_used); |
| 247 | } |
| 248 | qtrx->qt_bcount_delta += delta; |
| 249 | break; |
| 250 | |
| 251 | case XFS_TRANS_DQ_DELBCOUNT: |
| 252 | qtrx->qt_delbcnt_delta += delta; |
| 253 | break; |
| 254 | |
| 255 | /* |
| 256 | * Inode Count |
| 257 | */ |
| 258 | case XFS_TRANS_DQ_ICOUNT: |
| 259 | if (qtrx->qt_ino_res && delta > 0) { |
| 260 | qtrx->qt_ino_res_used += (ulong)delta; |
| 261 | ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used); |
| 262 | } |
| 263 | qtrx->qt_icount_delta += delta; |
| 264 | break; |
| 265 | |
| 266 | /* |
| 267 | * rtblk reservation |
| 268 | */ |
| 269 | case XFS_TRANS_DQ_RES_RTBLKS: |
| 270 | qtrx->qt_rtblk_res += (ulong)delta; |
| 271 | break; |
| 272 | |
| 273 | /* |
| 274 | * rtblk count |
| 275 | */ |
| 276 | case XFS_TRANS_DQ_RTBCOUNT: |
| 277 | if (qtrx->qt_rtblk_res && delta > 0) { |
| 278 | qtrx->qt_rtblk_res_used += (ulong)delta; |
| 279 | ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used); |
| 280 | } |
| 281 | qtrx->qt_rtbcount_delta += delta; |
| 282 | break; |
| 283 | |
| 284 | case XFS_TRANS_DQ_DELRTBCOUNT: |
| 285 | qtrx->qt_delrtb_delta += delta; |
| 286 | break; |
| 287 | |
| 288 | default: |
| 289 | ASSERT(0); |
| 290 | } |
| 291 | tp->t_flags |= XFS_TRANS_DQ_DIRTY; |
| 292 | } |
| 293 | |
| 294 | |
| 295 | /* |
Dave Chinner | b0a9dab | 2013-07-10 07:04:01 +1000 | [diff] [blame] | 296 | * Given an array of dqtrx structures, lock all the dquots associated and join |
| 297 | * them to the transaction, provided they have been modified. We know that the |
| 298 | * highest number of dquots of one type - usr, grp OR prj - involved in a |
| 299 | * transaction is 2 so we don't need to make this very generic. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | */ |
| 301 | STATIC void |
| 302 | xfs_trans_dqlockedjoin( |
| 303 | xfs_trans_t *tp, |
| 304 | xfs_dqtrx_t *q) |
| 305 | { |
| 306 | ASSERT(q[0].qt_dquot != NULL); |
| 307 | if (q[1].qt_dquot == NULL) { |
| 308 | xfs_dqlock(q[0].qt_dquot); |
| 309 | xfs_trans_dqjoin(tp, q[0].qt_dquot); |
| 310 | } else { |
| 311 | ASSERT(XFS_QM_TRANS_MAXDQS == 2); |
| 312 | xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot); |
| 313 | xfs_trans_dqjoin(tp, q[0].qt_dquot); |
| 314 | xfs_trans_dqjoin(tp, q[1].qt_dquot); |
| 315 | } |
| 316 | } |
| 317 | |
| 318 | |
| 319 | /* |
| 320 | * Called by xfs_trans_commit() and similar in spirit to |
| 321 | * xfs_trans_apply_sb_deltas(). |
| 322 | * Go thru all the dquots belonging to this transaction and modify the |
| 323 | * INCORE dquot to reflect the actual usages. |
| 324 | * Unreserve just the reservations done by this transaction. |
| 325 | * dquot is still left locked at exit. |
| 326 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 327 | void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | xfs_trans_apply_dquot_deltas( |
Brian Foster | 4b6eae2e | 2013-03-18 10:51:45 -0400 | [diff] [blame] | 329 | struct xfs_trans *tp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 330 | { |
| 331 | int i, j; |
Brian Foster | 4b6eae2e | 2013-03-18 10:51:45 -0400 | [diff] [blame] | 332 | struct xfs_dquot *dqp; |
| 333 | struct xfs_dqtrx *qtrx, *qa; |
| 334 | struct xfs_disk_dquot *d; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | long totalbdelta; |
| 336 | long totalrtbdelta; |
| 337 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 338 | if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | return; |
| 340 | |
| 341 | ASSERT(tp->t_dqinfo); |
Chandra Seetharaman | 0e6436d | 2013-06-27 17:25:09 -0500 | [diff] [blame] | 342 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
| 343 | qa = tp->t_dqinfo->dqs[j]; |
| 344 | if (qa[0].qt_dquot == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 345 | continue; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | |
| 347 | /* |
| 348 | * Lock all of the dquots and join them to the transaction. |
| 349 | */ |
| 350 | xfs_trans_dqlockedjoin(tp, qa); |
| 351 | |
| 352 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
| 353 | qtrx = &qa[i]; |
| 354 | /* |
| 355 | * The array of dquots is filled |
| 356 | * sequentially, not sparsely. |
| 357 | */ |
| 358 | if ((dqp = qtrx->qt_dquot) == NULL) |
| 359 | break; |
| 360 | |
| 361 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 362 | ASSERT(dqp->q_transp == tp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 363 | |
| 364 | /* |
| 365 | * adjust the actual number of blocks used |
| 366 | */ |
| 367 | d = &dqp->q_core; |
| 368 | |
| 369 | /* |
| 370 | * The issue here is - sometimes we don't make a blkquota |
| 371 | * reservation intentionally to be fair to users |
| 372 | * (when the amount is small). On the other hand, |
| 373 | * delayed allocs do make reservations, but that's |
| 374 | * outside of a transaction, so we have no |
| 375 | * idea how much was really reserved. |
| 376 | * So, here we've accumulated delayed allocation blks and |
| 377 | * non-delay blks. The assumption is that the |
| 378 | * delayed ones are always reserved (outside of a |
| 379 | * transaction), and the others may or may not have |
| 380 | * quota reservations. |
| 381 | */ |
| 382 | totalbdelta = qtrx->qt_bcount_delta + |
| 383 | qtrx->qt_delbcnt_delta; |
| 384 | totalrtbdelta = qtrx->qt_rtbcount_delta + |
| 385 | qtrx->qt_delrtb_delta; |
Christoph Hellwig | ea15ab3 | 2011-07-13 13:43:50 +0200 | [diff] [blame] | 386 | #ifdef DEBUG |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | if (totalbdelta < 0) |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 388 | ASSERT(be64_to_cpu(d->d_bcount) >= |
Christoph Hellwig | ea15ab3 | 2011-07-13 13:43:50 +0200 | [diff] [blame] | 389 | -totalbdelta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | |
| 391 | if (totalrtbdelta < 0) |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 392 | ASSERT(be64_to_cpu(d->d_rtbcount) >= |
Christoph Hellwig | ea15ab3 | 2011-07-13 13:43:50 +0200 | [diff] [blame] | 393 | -totalrtbdelta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | |
| 395 | if (qtrx->qt_icount_delta < 0) |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 396 | ASSERT(be64_to_cpu(d->d_icount) >= |
Christoph Hellwig | ea15ab3 | 2011-07-13 13:43:50 +0200 | [diff] [blame] | 397 | -qtrx->qt_icount_delta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | #endif |
| 399 | if (totalbdelta) |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 400 | be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 401 | |
| 402 | if (qtrx->qt_icount_delta) |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 403 | be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | |
| 405 | if (totalrtbdelta) |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 406 | be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | |
| 408 | /* |
| 409 | * Get any default limits in use. |
| 410 | * Start/reset the timer(s) if needed. |
| 411 | */ |
| 412 | if (d->d_id) { |
Brian Foster | 4b6eae2e | 2013-03-18 10:51:45 -0400 | [diff] [blame] | 413 | xfs_qm_adjust_dqlimits(tp->t_mountp, dqp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | xfs_qm_adjust_dqtimers(tp->t_mountp, d); |
| 415 | } |
| 416 | |
| 417 | dqp->dq_flags |= XFS_DQ_DIRTY; |
| 418 | /* |
| 419 | * add this to the list of items to get logged |
| 420 | */ |
| 421 | xfs_trans_log_dquot(tp, dqp); |
| 422 | /* |
| 423 | * Take off what's left of the original reservation. |
| 424 | * In case of delayed allocations, there's no |
| 425 | * reservation that a transaction structure knows of. |
| 426 | */ |
| 427 | if (qtrx->qt_blk_res != 0) { |
| 428 | if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) { |
| 429 | if (qtrx->qt_blk_res > |
| 430 | qtrx->qt_blk_res_used) |
| 431 | dqp->q_res_bcount -= (xfs_qcnt_t) |
| 432 | (qtrx->qt_blk_res - |
| 433 | qtrx->qt_blk_res_used); |
| 434 | else |
| 435 | dqp->q_res_bcount -= (xfs_qcnt_t) |
| 436 | (qtrx->qt_blk_res_used - |
| 437 | qtrx->qt_blk_res); |
| 438 | } |
| 439 | } else { |
| 440 | /* |
| 441 | * These blks were never reserved, either inside |
| 442 | * a transaction or outside one (in a delayed |
| 443 | * allocation). Also, this isn't always a |
| 444 | * negative number since we sometimes |
| 445 | * deliberately skip quota reservations. |
| 446 | */ |
| 447 | if (qtrx->qt_bcount_delta) { |
| 448 | dqp->q_res_bcount += |
| 449 | (xfs_qcnt_t)qtrx->qt_bcount_delta; |
| 450 | } |
| 451 | } |
| 452 | /* |
| 453 | * Adjust the RT reservation. |
| 454 | */ |
| 455 | if (qtrx->qt_rtblk_res != 0) { |
Nathan Scott | 06d10dd | 2005-06-21 15:48:47 +1000 | [diff] [blame] | 456 | if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 457 | if (qtrx->qt_rtblk_res > |
| 458 | qtrx->qt_rtblk_res_used) |
| 459 | dqp->q_res_rtbcount -= (xfs_qcnt_t) |
| 460 | (qtrx->qt_rtblk_res - |
| 461 | qtrx->qt_rtblk_res_used); |
| 462 | else |
| 463 | dqp->q_res_rtbcount -= (xfs_qcnt_t) |
| 464 | (qtrx->qt_rtblk_res_used - |
| 465 | qtrx->qt_rtblk_res); |
| 466 | } |
| 467 | } else { |
| 468 | if (qtrx->qt_rtbcount_delta) |
| 469 | dqp->q_res_rtbcount += |
| 470 | (xfs_qcnt_t)qtrx->qt_rtbcount_delta; |
| 471 | } |
| 472 | |
| 473 | /* |
| 474 | * Adjust the inode reservation. |
| 475 | */ |
| 476 | if (qtrx->qt_ino_res != 0) { |
| 477 | ASSERT(qtrx->qt_ino_res >= |
| 478 | qtrx->qt_ino_res_used); |
| 479 | if (qtrx->qt_ino_res > qtrx->qt_ino_res_used) |
| 480 | dqp->q_res_icount -= (xfs_qcnt_t) |
| 481 | (qtrx->qt_ino_res - |
| 482 | qtrx->qt_ino_res_used); |
| 483 | } else { |
| 484 | if (qtrx->qt_icount_delta) |
| 485 | dqp->q_res_icount += |
| 486 | (xfs_qcnt_t)qtrx->qt_icount_delta; |
| 487 | } |
| 488 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 489 | ASSERT(dqp->q_res_bcount >= |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 490 | be64_to_cpu(dqp->q_core.d_bcount)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 491 | ASSERT(dqp->q_res_icount >= |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 492 | be64_to_cpu(dqp->q_core.d_icount)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 493 | ASSERT(dqp->q_res_rtbcount >= |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 494 | be64_to_cpu(dqp->q_core.d_rtbcount)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 495 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | } |
| 497 | } |
| 498 | |
| 499 | /* |
| 500 | * Release the reservations, and adjust the dquots accordingly. |
| 501 | * This is called only when the transaction is being aborted. If by |
| 502 | * any chance we have done dquot modifications incore (ie. deltas) already, |
| 503 | * we simply throw those away, since that's the expected behavior |
| 504 | * when a transaction is curtailed without a commit. |
| 505 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 506 | void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 507 | xfs_trans_unreserve_and_mod_dquots( |
| 508 | xfs_trans_t *tp) |
| 509 | { |
| 510 | int i, j; |
| 511 | xfs_dquot_t *dqp; |
| 512 | xfs_dqtrx_t *qtrx, *qa; |
Thiago Farina | 667a929 | 2012-11-12 21:32:59 -0200 | [diff] [blame] | 513 | bool locked; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 514 | |
| 515 | if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY)) |
| 516 | return; |
| 517 | |
Chandra Seetharaman | 0e6436d | 2013-06-27 17:25:09 -0500 | [diff] [blame] | 518 | for (j = 0; j < XFS_QM_TRANS_DQTYPES; j++) { |
| 519 | qa = tp->t_dqinfo->dqs[j]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) { |
| 522 | qtrx = &qa[i]; |
| 523 | /* |
| 524 | * We assume that the array of dquots is filled |
| 525 | * sequentially, not sparsely. |
| 526 | */ |
| 527 | if ((dqp = qtrx->qt_dquot) == NULL) |
| 528 | break; |
| 529 | /* |
| 530 | * Unreserve the original reservation. We don't care |
| 531 | * about the number of blocks used field, or deltas. |
| 532 | * Also we don't bother to zero the fields. |
| 533 | */ |
Thiago Farina | 667a929 | 2012-11-12 21:32:59 -0200 | [diff] [blame] | 534 | locked = false; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | if (qtrx->qt_blk_res) { |
| 536 | xfs_dqlock(dqp); |
Thiago Farina | 667a929 | 2012-11-12 21:32:59 -0200 | [diff] [blame] | 537 | locked = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | dqp->q_res_bcount -= |
| 539 | (xfs_qcnt_t)qtrx->qt_blk_res; |
| 540 | } |
| 541 | if (qtrx->qt_ino_res) { |
| 542 | if (!locked) { |
| 543 | xfs_dqlock(dqp); |
Thiago Farina | 667a929 | 2012-11-12 21:32:59 -0200 | [diff] [blame] | 544 | locked = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 545 | } |
| 546 | dqp->q_res_icount -= |
| 547 | (xfs_qcnt_t)qtrx->qt_ino_res; |
| 548 | } |
| 549 | |
| 550 | if (qtrx->qt_rtblk_res) { |
| 551 | if (!locked) { |
| 552 | xfs_dqlock(dqp); |
Thiago Farina | 667a929 | 2012-11-12 21:32:59 -0200 | [diff] [blame] | 553 | locked = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 554 | } |
| 555 | dqp->q_res_rtbcount -= |
| 556 | (xfs_qcnt_t)qtrx->qt_rtblk_res; |
| 557 | } |
| 558 | if (locked) |
| 559 | xfs_dqunlock(dqp); |
| 560 | |
| 561 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 562 | } |
| 563 | } |
| 564 | |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 565 | STATIC void |
| 566 | xfs_quota_warn( |
| 567 | struct xfs_mount *mp, |
| 568 | struct xfs_dquot *dqp, |
| 569 | int type) |
| 570 | { |
| 571 | /* no warnings for project quotas - we just return ENOSPC later */ |
| 572 | if (dqp->dq_flags & XFS_DQ_PROJ) |
| 573 | return; |
Eric W. Biederman | 431f197 | 2012-09-16 02:32:43 -0700 | [diff] [blame] | 574 | quota_send_warning(make_kqid(&init_user_ns, |
| 575 | (dqp->dq_flags & XFS_DQ_USER) ? |
| 576 | USRQUOTA : GRPQUOTA, |
| 577 | be32_to_cpu(dqp->q_core.d_id)), |
| 578 | mp->m_super->s_dev, type); |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 579 | } |
| 580 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | /* |
| 582 | * This reserves disk blocks and inodes against a dquot. |
| 583 | * Flags indicate if the dquot is to be locked here and also |
| 584 | * if the blk reservation is for RT or regular blocks. |
| 585 | * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 586 | */ |
| 587 | STATIC int |
| 588 | xfs_trans_dqresv( |
| 589 | xfs_trans_t *tp, |
| 590 | xfs_mount_t *mp, |
| 591 | xfs_dquot_t *dqp, |
| 592 | long nblks, |
| 593 | long ninos, |
| 594 | uint flags) |
| 595 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 596 | xfs_qcnt_t hardlimit; |
| 597 | xfs_qcnt_t softlimit; |
Nathan Scott | 06d10dd | 2005-06-21 15:48:47 +1000 | [diff] [blame] | 598 | time_t timer; |
| 599 | xfs_qwarncnt_t warns; |
| 600 | xfs_qwarncnt_t warnlimit; |
Mitsuo Hayasaka | 70b5437 | 2012-02-06 12:51:05 +0000 | [diff] [blame] | 601 | xfs_qcnt_t total_count; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | xfs_qcnt_t *resbcountp; |
| 603 | xfs_quotainfo_t *q = mp->m_quotainfo; |
| 604 | |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 605 | |
| 606 | xfs_dqlock(dqp); |
| 607 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 608 | if (flags & XFS_TRANS_DQ_RES_BLKS) { |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 609 | hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 610 | if (!hardlimit) |
| 611 | hardlimit = q->qi_bhardlimit; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 612 | softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 613 | if (!softlimit) |
| 614 | softlimit = q->qi_bsoftlimit; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 615 | timer = be32_to_cpu(dqp->q_core.d_btimer); |
| 616 | warns = be16_to_cpu(dqp->q_core.d_bwarns); |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 617 | warnlimit = dqp->q_mount->m_quotainfo->qi_bwarnlimit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | resbcountp = &dqp->q_res_bcount; |
| 619 | } else { |
| 620 | ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS); |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 621 | hardlimit = be64_to_cpu(dqp->q_core.d_rtb_hardlimit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 622 | if (!hardlimit) |
| 623 | hardlimit = q->qi_rtbhardlimit; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 624 | softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | if (!softlimit) |
| 626 | softlimit = q->qi_rtbsoftlimit; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 627 | timer = be32_to_cpu(dqp->q_core.d_rtbtimer); |
| 628 | warns = be16_to_cpu(dqp->q_core.d_rtbwarns); |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 629 | warnlimit = dqp->q_mount->m_quotainfo->qi_rtbwarnlimit; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 630 | resbcountp = &dqp->q_res_rtbcount; |
| 631 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 632 | |
| 633 | if ((flags & XFS_QMOPT_FORCE_RES) == 0 && |
| 634 | dqp->q_core.d_id && |
Kouta Ooizumi | e6d2942 | 2007-05-08 13:49:33 +1000 | [diff] [blame] | 635 | ((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) || |
Chandra Seetharaman | 83e782e | 2013-06-27 17:25:10 -0500 | [diff] [blame] | 636 | (XFS_IS_GQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISGDQ(dqp)) || |
| 637 | (XFS_IS_PQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISPDQ(dqp)))) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | if (nblks > 0) { |
| 639 | /* |
| 640 | * dquot is locked already. See if we'd go over the |
| 641 | * hardlimit or exceed the timelimit if we allocate |
| 642 | * nblks. |
| 643 | */ |
Mitsuo Hayasaka | 70b5437 | 2012-02-06 12:51:05 +0000 | [diff] [blame] | 644 | total_count = *resbcountp + nblks; |
| 645 | if (hardlimit && total_count > hardlimit) { |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 646 | xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 647 | goto error_return; |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 648 | } |
Mitsuo Hayasaka | 70b5437 | 2012-02-06 12:51:05 +0000 | [diff] [blame] | 649 | if (softlimit && total_count > softlimit) { |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 650 | if ((timer != 0 && get_seconds() > timer) || |
| 651 | (warns != 0 && warns >= warnlimit)) { |
| 652 | xfs_quota_warn(mp, dqp, |
| 653 | QUOTA_NL_BSOFTLONGWARN); |
| 654 | goto error_return; |
| 655 | } |
| 656 | |
| 657 | xfs_quota_warn(mp, dqp, QUOTA_NL_BSOFTWARN); |
| 658 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | } |
| 660 | if (ninos > 0) { |
Mitsuo Hayasaka | 70b5437 | 2012-02-06 12:51:05 +0000 | [diff] [blame] | 661 | total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 662 | timer = be32_to_cpu(dqp->q_core.d_itimer); |
| 663 | warns = be16_to_cpu(dqp->q_core.d_iwarns); |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 664 | warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 665 | hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 666 | if (!hardlimit) |
| 667 | hardlimit = q->qi_ihardlimit; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 668 | softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 669 | if (!softlimit) |
| 670 | softlimit = q->qi_isoftlimit; |
Christoph Hellwig | 4d1f88d | 2010-01-13 22:05:49 +0000 | [diff] [blame] | 671 | |
Mitsuo Hayasaka | 70b5437 | 2012-02-06 12:51:05 +0000 | [diff] [blame] | 672 | if (hardlimit && total_count > hardlimit) { |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 673 | xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | goto error_return; |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 675 | } |
Mitsuo Hayasaka | 70b5437 | 2012-02-06 12:51:05 +0000 | [diff] [blame] | 676 | if (softlimit && total_count > softlimit) { |
Christoph Hellwig | a210c1a | 2010-01-17 22:36:19 +0000 | [diff] [blame] | 677 | if ((timer != 0 && get_seconds() > timer) || |
| 678 | (warns != 0 && warns >= warnlimit)) { |
| 679 | xfs_quota_warn(mp, dqp, |
| 680 | QUOTA_NL_ISOFTLONGWARN); |
| 681 | goto error_return; |
| 682 | } |
| 683 | xfs_quota_warn(mp, dqp, QUOTA_NL_ISOFTWARN); |
| 684 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | } |
| 686 | } |
| 687 | |
| 688 | /* |
| 689 | * Change the reservation, but not the actual usage. |
| 690 | * Note that q_res_bcount = q_core.d_bcount + resv |
| 691 | */ |
| 692 | (*resbcountp) += (xfs_qcnt_t)nblks; |
| 693 | if (ninos != 0) |
| 694 | dqp->q_res_icount += (xfs_qcnt_t)ninos; |
| 695 | |
| 696 | /* |
| 697 | * note the reservation amt in the trans struct too, |
| 698 | * so that the transaction knows how much was reserved by |
| 699 | * it against this particular dquot. |
| 700 | * We don't do this when we are reserving for a delayed allocation, |
| 701 | * because we don't have the luxury of a transaction envelope then. |
| 702 | */ |
| 703 | if (tp) { |
| 704 | ASSERT(tp->t_dqinfo); |
| 705 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); |
| 706 | if (nblks != 0) |
| 707 | xfs_trans_mod_dquot(tp, dqp, |
| 708 | flags & XFS_QMOPT_RESBLK_MASK, |
| 709 | nblks); |
| 710 | if (ninos != 0) |
| 711 | xfs_trans_mod_dquot(tp, dqp, |
| 712 | XFS_TRANS_DQ_RES_INOS, |
| 713 | ninos); |
| 714 | } |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 715 | ASSERT(dqp->q_res_bcount >= be64_to_cpu(dqp->q_core.d_bcount)); |
| 716 | ASSERT(dqp->q_res_rtbcount >= be64_to_cpu(dqp->q_core.d_rtbcount)); |
| 717 | ASSERT(dqp->q_res_icount >= be64_to_cpu(dqp->q_core.d_icount)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 718 | |
Christoph Hellwig | 4d1f88d | 2010-01-13 22:05:49 +0000 | [diff] [blame] | 719 | xfs_dqunlock(dqp); |
| 720 | return 0; |
| 721 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 722 | error_return: |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 723 | xfs_dqunlock(dqp); |
Christoph Hellwig | 4d1f88d | 2010-01-13 22:05:49 +0000 | [diff] [blame] | 724 | if (flags & XFS_QMOPT_ENOSPC) |
| 725 | return ENOSPC; |
| 726 | return EDQUOT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | } |
| 728 | |
| 729 | |
| 730 | /* |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 731 | * Given dquot(s), make disk block and/or inode reservations against them. |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 732 | * The fact that this does the reservation against user, group and |
| 733 | * project quotas is important, because this follows a all-or-nothing |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 734 | * approach. |
| 735 | * |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 736 | * flags = XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown. |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 737 | * XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT. Used by pquota. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | * XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks |
| 739 | * XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks |
| 740 | * dquots are unlocked on return, if they were not locked by caller. |
| 741 | */ |
| 742 | int |
| 743 | xfs_trans_reserve_quota_bydquots( |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 744 | struct xfs_trans *tp, |
| 745 | struct xfs_mount *mp, |
| 746 | struct xfs_dquot *udqp, |
| 747 | struct xfs_dquot *gdqp, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 748 | struct xfs_dquot *pdqp, |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 749 | long nblks, |
| 750 | long ninos, |
| 751 | uint flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 752 | { |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 753 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 754 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 755 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 756 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 757 | |
| 758 | if (tp && tp->t_dqinfo == NULL) |
| 759 | xfs_trans_alloc_dqinfo(tp); |
| 760 | |
| 761 | ASSERT(flags & XFS_QMOPT_RESBLK_MASK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | |
| 763 | if (udqp) { |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 764 | error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos, |
| 765 | (flags & ~XFS_QMOPT_ENOSPC)); |
| 766 | if (error) |
| 767 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 768 | } |
| 769 | |
| 770 | if (gdqp) { |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 771 | error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 772 | if (error) |
| 773 | goto unwind_usr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 774 | } |
| 775 | |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 776 | if (pdqp) { |
| 777 | error = xfs_trans_dqresv(tp, mp, pdqp, nblks, ninos, flags); |
| 778 | if (error) |
| 779 | goto unwind_grp; |
| 780 | } |
| 781 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | /* |
Nathan Scott | c41564b | 2006-03-29 08:55:14 +1000 | [diff] [blame] | 783 | * Didn't change anything critical, so, no need to log |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 784 | */ |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 785 | return 0; |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 786 | |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 787 | unwind_grp: |
| 788 | flags |= XFS_QMOPT_FORCE_RES; |
| 789 | if (gdqp) |
| 790 | xfs_trans_dqresv(tp, mp, gdqp, -nblks, -ninos, flags); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 791 | unwind_usr: |
| 792 | flags |= XFS_QMOPT_FORCE_RES; |
| 793 | if (udqp) |
| 794 | xfs_trans_dqresv(tp, mp, udqp, -nblks, -ninos, flags); |
| 795 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 804 | int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | xfs_trans_reserve_quota_nblks( |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 806 | struct xfs_trans *tp, |
| 807 | struct xfs_inode *ip, |
| 808 | long nblks, |
| 809 | long ninos, |
| 810 | uint flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | { |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 812 | struct xfs_mount *mp = ip->i_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 813 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 814 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 815 | return 0; |
| 816 | if (XFS_IS_PQUOTA_ON(mp)) |
| 817 | flags |= XFS_QMOPT_ENOSPC; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 818 | |
Chandra Seetharaman | 9cad19d | 2013-06-27 17:25:04 -0500 | [diff] [blame] | 819 | ASSERT(!xfs_is_quota_inode(&mp->m_sb, ip->i_ino)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 820 | |
Christoph Hellwig | 579aa9c | 2008-04-22 17:34:00 +1000 | [diff] [blame] | 821 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 822 | ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == |
| 823 | XFS_TRANS_DQ_RES_RTBLKS || |
| 824 | (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) == |
| 825 | XFS_TRANS_DQ_RES_BLKS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 826 | |
| 827 | /* |
| 828 | * Reserve nblks against these dquots, with trans as the mediator. |
| 829 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 830 | return xfs_trans_reserve_quota_bydquots(tp, mp, |
| 831 | ip->i_udquot, ip->i_gdquot, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 832 | ip->i_pdquot, |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 833 | nblks, ninos, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 855 | xfs_trans_add_item(tp, &q->qql_item); |
| 856 | return q; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 870 | tp->t_flags |= XFS_TRANS_DIRTY; |
Christoph Hellwig | e98c414 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 871 | qlp->qql_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | } |
| 873 | |
| 874 | STATIC void |
| 875 | xfs_trans_alloc_dqinfo( |
| 876 | xfs_trans_t *tp) |
| 877 | { |
Christoph Hellwig | a05931c | 2012-03-13 08:52:37 +0000 | [diff] [blame] | 878 | tp->t_dqinfo = kmem_zone_zalloc(xfs_qm_dqtrxzone, KM_SLEEP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 879 | } |
| 880 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 881 | void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 882 | xfs_trans_free_dqinfo( |
| 883 | xfs_trans_t *tp) |
| 884 | { |
| 885 | if (!tp->t_dqinfo) |
| 886 | return; |
Christoph Hellwig | a05931c | 2012-03-13 08:52:37 +0000 | [diff] [blame] | 887 | kmem_zone_free(xfs_qm_dqtrxzone, tp->t_dqinfo); |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 888 | tp->t_dqinfo = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | } |