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) 2000-2005 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 | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 20 | #include "xfs_shared.h" |
Dave Chinner | 6ca1c90 | 2013-08-12 20:49:26 +1000 | [diff] [blame] | 21 | #include "xfs_format.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 22 | #include "xfs_log_format.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 23 | #include "xfs_trans_resv.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 24 | #include "xfs_bit.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include "xfs_sb.h" |
| 26 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include "xfs_mount.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include "xfs_inode.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 29 | #include "xfs_ialloc.h" |
| 30 | #include "xfs_itable.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 31 | #include "xfs_quota.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include "xfs_error.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 33 | #include "xfs_bmap.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 34 | #include "xfs_bmap_btree.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 35 | #include "xfs_trans.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | #include "xfs_trans_space.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | #include "xfs_qm.h" |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 38 | #include "xfs_trace.h" |
Dave Chinner | 33479e0 | 2012-10-08 21:56:11 +1100 | [diff] [blame] | 39 | #include "xfs_icache.h" |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 40 | #include "xfs_cksum.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 41 | #include "xfs_dinode.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
| 43 | /* |
| 44 | * The global quota manager. There is only one of these for the entire |
| 45 | * system, _not_ one per file system. XQM keeps track of the overall |
| 46 | * quota functionality, including maintaining the freelist and hash |
| 47 | * tables of dquots. |
| 48 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 49 | STATIC int xfs_qm_init_quotainos(xfs_mount_t *); |
Christoph Hellwig | ba0f32d | 2005-06-21 15:36:52 +1000 | [diff] [blame] | 50 | STATIC int xfs_qm_init_quotainfo(xfs_mount_t *); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 52 | |
| 53 | STATIC void xfs_qm_dqfree_one(struct xfs_dquot *dqp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | /* |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 55 | * We use the batch lookup interface to iterate over the dquots as it |
| 56 | * currently is the only interface into the radix tree code that allows |
| 57 | * fuzzy lookups instead of exact matches. Holding the lock over multiple |
| 58 | * operations is fine as all callers are used either during mount/umount |
| 59 | * or quotaoff. |
| 60 | */ |
| 61 | #define XFS_DQ_LOOKUP_BATCH 32 |
| 62 | |
| 63 | STATIC int |
| 64 | xfs_qm_dquot_walk( |
| 65 | struct xfs_mount *mp, |
| 66 | int type, |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 67 | int (*execute)(struct xfs_dquot *dqp, void *data), |
| 68 | void *data) |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 69 | { |
| 70 | struct xfs_quotainfo *qi = mp->m_quotainfo; |
Chandra Seetharaman | 329e087 | 2013-06-27 17:25:05 -0500 | [diff] [blame] | 71 | struct radix_tree_root *tree = xfs_dquot_tree(qi, type); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 72 | uint32_t next_index; |
| 73 | int last_error = 0; |
| 74 | int skipped; |
| 75 | int nr_found; |
| 76 | |
| 77 | restart: |
| 78 | skipped = 0; |
| 79 | next_index = 0; |
| 80 | nr_found = 0; |
| 81 | |
| 82 | while (1) { |
| 83 | struct xfs_dquot *batch[XFS_DQ_LOOKUP_BATCH]; |
| 84 | int error = 0; |
| 85 | int i; |
| 86 | |
| 87 | mutex_lock(&qi->qi_tree_lock); |
| 88 | nr_found = radix_tree_gang_lookup(tree, (void **)batch, |
| 89 | next_index, XFS_DQ_LOOKUP_BATCH); |
| 90 | if (!nr_found) { |
| 91 | mutex_unlock(&qi->qi_tree_lock); |
| 92 | break; |
| 93 | } |
| 94 | |
| 95 | for (i = 0; i < nr_found; i++) { |
| 96 | struct xfs_dquot *dqp = batch[i]; |
| 97 | |
| 98 | next_index = be32_to_cpu(dqp->q_core.d_id) + 1; |
| 99 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 100 | error = execute(batch[i], data); |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 101 | if (error == -EAGAIN) { |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 102 | skipped++; |
| 103 | continue; |
| 104 | } |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 105 | if (error && last_error != -EFSCORRUPTED) |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 106 | last_error = error; |
| 107 | } |
| 108 | |
| 109 | mutex_unlock(&qi->qi_tree_lock); |
| 110 | |
| 111 | /* bail out if the filesystem is corrupted. */ |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 112 | if (last_error == -EFSCORRUPTED) { |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 113 | skipped = 0; |
| 114 | break; |
| 115 | } |
| 116 | } |
| 117 | |
| 118 | if (skipped) { |
| 119 | delay(1); |
| 120 | goto restart; |
| 121 | } |
| 122 | |
| 123 | return last_error; |
| 124 | } |
| 125 | |
| 126 | |
| 127 | /* |
| 128 | * Purge a dquot from all tracking data structures and free it. |
| 129 | */ |
| 130 | STATIC int |
| 131 | xfs_qm_dqpurge( |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 132 | struct xfs_dquot *dqp, |
| 133 | void *data) |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 134 | { |
| 135 | struct xfs_mount *mp = dqp->q_mount; |
| 136 | struct xfs_quotainfo *qi = mp->m_quotainfo; |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 137 | |
| 138 | xfs_dqlock(dqp); |
| 139 | if ((dqp->dq_flags & XFS_DQ_FREEING) || dqp->q_nrefs != 0) { |
| 140 | xfs_dqunlock(dqp); |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 141 | return -EAGAIN; |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 142 | } |
| 143 | |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 144 | dqp->dq_flags |= XFS_DQ_FREEING; |
| 145 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 146 | xfs_dqflock(dqp); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 147 | |
| 148 | /* |
| 149 | * If we are turning this type of quotas off, we don't care |
| 150 | * about the dirty metadata sitting in this dquot. OTOH, if |
| 151 | * we're unmounting, we do care, so we flush it and wait. |
| 152 | */ |
| 153 | if (XFS_DQ_IS_DIRTY(dqp)) { |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 154 | struct xfs_buf *bp = NULL; |
| 155 | int error; |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 156 | |
| 157 | /* |
| 158 | * We don't care about getting disk errors here. We need |
| 159 | * to purge this dquot anyway, so we go ahead regardless. |
| 160 | */ |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 161 | error = xfs_qm_dqflush(dqp, &bp); |
| 162 | if (error) { |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 163 | xfs_warn(mp, "%s: dquot %p flush failed", |
| 164 | __func__, dqp); |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 165 | } else { |
| 166 | error = xfs_bwrite(bp); |
| 167 | xfs_buf_relse(bp); |
| 168 | } |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 169 | xfs_dqflock(dqp); |
| 170 | } |
| 171 | |
| 172 | ASSERT(atomic_read(&dqp->q_pincount) == 0); |
| 173 | ASSERT(XFS_FORCED_SHUTDOWN(mp) || |
| 174 | !(dqp->q_logitem.qli_item.li_flags & XFS_LI_IN_AIL)); |
| 175 | |
| 176 | xfs_dqfunlock(dqp); |
| 177 | xfs_dqunlock(dqp); |
| 178 | |
Chandra Seetharaman | 329e087 | 2013-06-27 17:25:05 -0500 | [diff] [blame] | 179 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 180 | be32_to_cpu(dqp->q_core.d_id)); |
| 181 | qi->qi_dquots--; |
| 182 | |
| 183 | /* |
| 184 | * We move dquots to the freelist as soon as their reference count |
| 185 | * hits zero, so it really should be on the freelist here. |
| 186 | */ |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 187 | ASSERT(!list_empty(&dqp->q_lru)); |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 188 | list_lru_del(&qi->qi_lru, &dqp->q_lru); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 189 | XFS_STATS_DEC(xs_qm_dquot_unused); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 190 | |
| 191 | xfs_qm_dqdestroy(dqp); |
Jie Liu | df8052e | 2013-11-26 21:38:49 +0800 | [diff] [blame] | 192 | return 0; |
| 193 | } |
| 194 | |
| 195 | /* |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 196 | * Purge the dquot cache. |
| 197 | */ |
| 198 | void |
| 199 | xfs_qm_dqpurge_all( |
| 200 | struct xfs_mount *mp, |
| 201 | uint flags) |
| 202 | { |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 203 | if (flags & XFS_QMOPT_UQUOTA) |
| 204 | xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_dqpurge, NULL); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 205 | if (flags & XFS_QMOPT_GQUOTA) |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 206 | xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_dqpurge, NULL); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 207 | if (flags & XFS_QMOPT_PQUOTA) |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 208 | xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_dqpurge, NULL); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 209 | } |
| 210 | |
| 211 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | * Just destroy the quotainfo structure. |
| 213 | */ |
| 214 | void |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 215 | xfs_qm_unmount( |
| 216 | struct xfs_mount *mp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | { |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 218 | if (mp->m_quotainfo) { |
Christoph Hellwig | 8112e9d | 2010-04-20 17:02:29 +1000 | [diff] [blame] | 219 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | xfs_qm_destroy_quotainfo(mp); |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 221 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | } |
| 223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 224 | /* |
| 225 | * Called from the vfsops layer. |
| 226 | */ |
Christoph Hellwig | e57481d | 2008-12-03 12:20:36 +0100 | [diff] [blame] | 227 | void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | xfs_qm_unmount_quotas( |
| 229 | xfs_mount_t *mp) |
| 230 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 231 | /* |
| 232 | * Release the dquots that root inode, et al might be holding, |
| 233 | * before we flush quotas and blow away the quotainfo structure. |
| 234 | */ |
| 235 | ASSERT(mp->m_rootip); |
| 236 | xfs_qm_dqdetach(mp->m_rootip); |
| 237 | if (mp->m_rbmip) |
| 238 | xfs_qm_dqdetach(mp->m_rbmip); |
| 239 | if (mp->m_rsumip) |
| 240 | xfs_qm_dqdetach(mp->m_rsumip); |
| 241 | |
| 242 | /* |
Christoph Hellwig | e57481d | 2008-12-03 12:20:36 +0100 | [diff] [blame] | 243 | * Release the quota inodes. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | if (mp->m_quotainfo) { |
Christoph Hellwig | e57481d | 2008-12-03 12:20:36 +0100 | [diff] [blame] | 246 | if (mp->m_quotainfo->qi_uquotaip) { |
| 247 | IRELE(mp->m_quotainfo->qi_uquotaip); |
| 248 | mp->m_quotainfo->qi_uquotaip = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | } |
Christoph Hellwig | e57481d | 2008-12-03 12:20:36 +0100 | [diff] [blame] | 250 | if (mp->m_quotainfo->qi_gquotaip) { |
| 251 | IRELE(mp->m_quotainfo->qi_gquotaip); |
| 252 | mp->m_quotainfo->qi_gquotaip = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 254 | if (mp->m_quotainfo->qi_pquotaip) { |
| 255 | IRELE(mp->m_quotainfo->qi_pquotaip); |
| 256 | mp->m_quotainfo->qi_pquotaip = NULL; |
| 257 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | } |
| 260 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 261 | STATIC int |
| 262 | xfs_qm_dqattach_one( |
| 263 | xfs_inode_t *ip, |
| 264 | xfs_dqid_t id, |
| 265 | uint type, |
| 266 | uint doalloc, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | xfs_dquot_t **IO_idqpp) |
| 268 | { |
| 269 | xfs_dquot_t *dqp; |
| 270 | int error; |
| 271 | |
Christoph Hellwig | 579aa9c | 2008-04-22 17:34:00 +1000 | [diff] [blame] | 272 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 273 | error = 0; |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 274 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | /* |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 276 | * See if we already have it in the inode itself. IO_idqpp is &i_udquot |
| 277 | * or &i_gdquot. This made the code look weird, but made the logic a lot |
| 278 | * simpler. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | */ |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 280 | dqp = *IO_idqpp; |
| 281 | if (dqp) { |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 282 | trace_xfs_dqattach_found(dqp); |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 283 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | /* |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 287 | * Find the dquot from somewhere. This bumps the reference count of |
| 288 | * dquot and returns it locked. This can return ENOENT if dquot didn't |
| 289 | * exist on disk and we didn't ask it to allocate; ESRCH if quotas got |
| 290 | * turned off suddenly. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | */ |
Mitsuo Hayasaka | db3e74b | 2011-11-10 01:33:10 +0000 | [diff] [blame] | 292 | error = xfs_qm_dqget(ip->i_mount, ip, id, type, |
| 293 | doalloc | XFS_QMOPT_DOWARN, &dqp); |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 294 | if (error) |
| 295 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 297 | trace_xfs_dqattach_get(dqp); |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 298 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | /* |
| 300 | * dqget may have dropped and re-acquired the ilock, but it guarantees |
| 301 | * that the dquot returned is the one that should go in the inode. |
| 302 | */ |
| 303 | *IO_idqpp = dqp; |
Christoph Hellwig | 8e9b6e7 | 2009-02-08 21:51:42 +0100 | [diff] [blame] | 304 | xfs_dqunlock(dqp); |
| 305 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | } |
| 307 | |
Christoph Hellwig | b4d05e3 | 2012-03-27 10:34:46 -0400 | [diff] [blame] | 308 | static bool |
| 309 | xfs_qm_need_dqattach( |
| 310 | struct xfs_inode *ip) |
| 311 | { |
| 312 | struct xfs_mount *mp = ip->i_mount; |
| 313 | |
| 314 | if (!XFS_IS_QUOTA_RUNNING(mp)) |
| 315 | return false; |
| 316 | if (!XFS_IS_QUOTA_ON(mp)) |
| 317 | return false; |
| 318 | if (!XFS_NOT_DQATTACHED(mp, ip)) |
| 319 | return false; |
Chandra Seetharaman | 9cad19d | 2013-06-27 17:25:04 -0500 | [diff] [blame] | 320 | if (xfs_is_quota_inode(&mp->m_sb, ip->i_ino)) |
Christoph Hellwig | b4d05e3 | 2012-03-27 10:34:46 -0400 | [diff] [blame] | 321 | return false; |
| 322 | return true; |
| 323 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | |
| 325 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 326 | * Given a locked inode, attach dquot(s) to it, taking U/G/P-QUOTAON |
| 327 | * into account. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | * If XFS_QMOPT_DQALLOC, the dquot(s) will be allocated if needed. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | * Inode may get unlocked and relocked in here, and the caller must deal with |
| 330 | * the consequences. |
| 331 | */ |
| 332 | int |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 333 | xfs_qm_dqattach_locked( |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | xfs_inode_t *ip, |
| 335 | uint flags) |
| 336 | { |
| 337 | xfs_mount_t *mp = ip->i_mount; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | int error = 0; |
| 339 | |
Christoph Hellwig | b4d05e3 | 2012-03-27 10:34:46 -0400 | [diff] [blame] | 340 | if (!xfs_qm_need_dqattach(ip)) |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 341 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 343 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 345 | if (XFS_IS_UQUOTA_ON(mp) && !ip->i_udquot) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_uid, XFS_DQ_USER, |
| 347 | flags & XFS_QMOPT_DQALLOC, |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 348 | &ip->i_udquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 349 | if (error) |
| 350 | goto done; |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 351 | ASSERT(ip->i_udquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | } |
Christoph Hellwig | 579aa9c | 2008-04-22 17:34:00 +1000 | [diff] [blame] | 353 | |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 354 | if (XFS_IS_GQUOTA_ON(mp) && !ip->i_gdquot) { |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 355 | error = xfs_qm_dqattach_one(ip, ip->i_d.di_gid, XFS_DQ_GROUP, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | flags & XFS_QMOPT_DQALLOC, |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 357 | &ip->i_gdquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | if (error) |
| 359 | goto done; |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 360 | ASSERT(ip->i_gdquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 361 | } |
| 362 | |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 363 | if (XFS_IS_PQUOTA_ON(mp) && !ip->i_pdquot) { |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 364 | error = xfs_qm_dqattach_one(ip, xfs_get_projid(ip), XFS_DQ_PROJ, |
| 365 | flags & XFS_QMOPT_DQALLOC, |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 366 | &ip->i_pdquot); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 367 | if (error) |
| 368 | goto done; |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 369 | ASSERT(ip->i_pdquot); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 370 | } |
| 371 | |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 372 | done: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | /* |
Dave Chinner | 3c3533757 | 2014-05-05 17:30:15 +1000 | [diff] [blame] | 374 | * Don't worry about the dquots that we may have attached before any |
| 375 | * error - they'll get detached later if it has not already been done. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 377 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 378 | return error; |
| 379 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 381 | int |
| 382 | xfs_qm_dqattach( |
| 383 | struct xfs_inode *ip, |
| 384 | uint flags) |
| 385 | { |
| 386 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | |
Christoph Hellwig | b4d05e3 | 2012-03-27 10:34:46 -0400 | [diff] [blame] | 388 | if (!xfs_qm_need_dqattach(ip)) |
| 389 | return 0; |
| 390 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 391 | xfs_ilock(ip, XFS_ILOCK_EXCL); |
| 392 | error = xfs_qm_dqattach_locked(ip, flags); |
| 393 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
| 394 | |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 395 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | /* |
| 399 | * Release dquots (and their references) if any. |
| 400 | * The inode should be locked EXCL except when this's called by |
| 401 | * xfs_ireclaim. |
| 402 | */ |
| 403 | void |
| 404 | xfs_qm_dqdetach( |
| 405 | xfs_inode_t *ip) |
| 406 | { |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 407 | if (!(ip->i_udquot || ip->i_gdquot || ip->i_pdquot)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | return; |
| 409 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 410 | trace_xfs_dquot_dqdetach(ip); |
| 411 | |
Chandra Seetharaman | 9cad19d | 2013-06-27 17:25:04 -0500 | [diff] [blame] | 412 | ASSERT(!xfs_is_quota_inode(&ip->i_mount->m_sb, ip->i_ino)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 413 | if (ip->i_udquot) { |
| 414 | xfs_qm_dqrele(ip->i_udquot); |
| 415 | ip->i_udquot = NULL; |
| 416 | } |
| 417 | if (ip->i_gdquot) { |
| 418 | xfs_qm_dqrele(ip->i_gdquot); |
| 419 | ip->i_gdquot = NULL; |
| 420 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 421 | if (ip->i_pdquot) { |
| 422 | xfs_qm_dqrele(ip->i_pdquot); |
| 423 | ip->i_pdquot = NULL; |
| 424 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | } |
| 426 | |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 427 | struct xfs_qm_isolate { |
| 428 | struct list_head buffers; |
| 429 | struct list_head dispose; |
| 430 | }; |
| 431 | |
| 432 | static enum lru_status |
| 433 | xfs_qm_dquot_isolate( |
| 434 | struct list_head *item, |
| 435 | spinlock_t *lru_lock, |
| 436 | void *arg) |
Dave Chinner | bf1ed38 | 2014-09-29 10:43:40 +1000 | [diff] [blame] | 437 | __releases(lru_lock) __acquires(lru_lock) |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 438 | { |
| 439 | struct xfs_dquot *dqp = container_of(item, |
| 440 | struct xfs_dquot, q_lru); |
| 441 | struct xfs_qm_isolate *isol = arg; |
| 442 | |
| 443 | if (!xfs_dqlock_nowait(dqp)) |
| 444 | goto out_miss_busy; |
| 445 | |
| 446 | /* |
| 447 | * This dquot has acquired a reference in the meantime remove it from |
| 448 | * the freelist and try again. |
| 449 | */ |
| 450 | if (dqp->q_nrefs) { |
| 451 | xfs_dqunlock(dqp); |
| 452 | XFS_STATS_INC(xs_qm_dqwants); |
| 453 | |
| 454 | trace_xfs_dqreclaim_want(dqp); |
| 455 | list_del_init(&dqp->q_lru); |
| 456 | XFS_STATS_DEC(xs_qm_dquot_unused); |
Dave Chinner | 3516341 | 2013-08-28 10:18:08 +1000 | [diff] [blame] | 457 | return LRU_REMOVED; |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 458 | } |
| 459 | |
| 460 | /* |
| 461 | * If the dquot is dirty, flush it. If it's already being flushed, just |
| 462 | * skip it so there is time for the IO to complete before we try to |
| 463 | * reclaim it again on the next LRU pass. |
| 464 | */ |
| 465 | if (!xfs_dqflock_nowait(dqp)) { |
| 466 | xfs_dqunlock(dqp); |
| 467 | goto out_miss_busy; |
| 468 | } |
| 469 | |
| 470 | if (XFS_DQ_IS_DIRTY(dqp)) { |
| 471 | struct xfs_buf *bp = NULL; |
| 472 | int error; |
| 473 | |
| 474 | trace_xfs_dqreclaim_dirty(dqp); |
| 475 | |
| 476 | /* we have to drop the LRU lock to flush the dquot */ |
| 477 | spin_unlock(lru_lock); |
| 478 | |
| 479 | error = xfs_qm_dqflush(dqp, &bp); |
| 480 | if (error) { |
| 481 | xfs_warn(dqp->q_mount, "%s: dquot %p flush failed", |
| 482 | __func__, dqp); |
| 483 | goto out_unlock_dirty; |
| 484 | } |
| 485 | |
| 486 | xfs_buf_delwri_queue(bp, &isol->buffers); |
| 487 | xfs_buf_relse(bp); |
| 488 | goto out_unlock_dirty; |
| 489 | } |
| 490 | xfs_dqfunlock(dqp); |
| 491 | |
| 492 | /* |
| 493 | * Prevent lookups now that we are past the point of no return. |
| 494 | */ |
| 495 | dqp->dq_flags |= XFS_DQ_FREEING; |
| 496 | xfs_dqunlock(dqp); |
| 497 | |
| 498 | ASSERT(dqp->q_nrefs == 0); |
| 499 | list_move_tail(&dqp->q_lru, &isol->dispose); |
| 500 | XFS_STATS_DEC(xs_qm_dquot_unused); |
| 501 | trace_xfs_dqreclaim_done(dqp); |
| 502 | XFS_STATS_INC(xs_qm_dqreclaims); |
Dave Chinner | 3516341 | 2013-08-28 10:18:08 +1000 | [diff] [blame] | 503 | return LRU_REMOVED; |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 504 | |
| 505 | out_miss_busy: |
| 506 | trace_xfs_dqreclaim_busy(dqp); |
| 507 | XFS_STATS_INC(xs_qm_dqreclaim_misses); |
Dave Chinner | 3516341 | 2013-08-28 10:18:08 +1000 | [diff] [blame] | 508 | return LRU_SKIP; |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 509 | |
| 510 | out_unlock_dirty: |
| 511 | trace_xfs_dqreclaim_busy(dqp); |
| 512 | XFS_STATS_INC(xs_qm_dqreclaim_misses); |
Dave Chinner | 3516341 | 2013-08-28 10:18:08 +1000 | [diff] [blame] | 513 | xfs_dqunlock(dqp); |
| 514 | spin_lock(lru_lock); |
| 515 | return LRU_RETRY; |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 516 | } |
| 517 | |
Andrew Morton | 2f5b56f | 2013-08-28 10:18:08 +1000 | [diff] [blame] | 518 | static unsigned long |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 519 | xfs_qm_shrink_scan( |
| 520 | struct shrinker *shrink, |
| 521 | struct shrink_control *sc) |
| 522 | { |
| 523 | struct xfs_quotainfo *qi = container_of(shrink, |
| 524 | struct xfs_quotainfo, qi_shrinker); |
| 525 | struct xfs_qm_isolate isol; |
Andrew Morton | 2f5b56f | 2013-08-28 10:18:08 +1000 | [diff] [blame] | 526 | unsigned long freed; |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 527 | int error; |
| 528 | unsigned long nr_to_scan = sc->nr_to_scan; |
| 529 | |
| 530 | if ((sc->gfp_mask & (__GFP_FS|__GFP_WAIT)) != (__GFP_FS|__GFP_WAIT)) |
| 531 | return 0; |
| 532 | |
| 533 | INIT_LIST_HEAD(&isol.buffers); |
| 534 | INIT_LIST_HEAD(&isol.dispose); |
| 535 | |
| 536 | freed = list_lru_walk_node(&qi->qi_lru, sc->nid, xfs_qm_dquot_isolate, &isol, |
| 537 | &nr_to_scan); |
| 538 | |
| 539 | error = xfs_buf_delwri_submit(&isol.buffers); |
| 540 | if (error) |
| 541 | xfs_warn(NULL, "%s: dquot reclaim failed", __func__); |
| 542 | |
| 543 | while (!list_empty(&isol.dispose)) { |
| 544 | struct xfs_dquot *dqp; |
| 545 | |
| 546 | dqp = list_first_entry(&isol.dispose, struct xfs_dquot, q_lru); |
| 547 | list_del_init(&dqp->q_lru); |
| 548 | xfs_qm_dqfree_one(dqp); |
| 549 | } |
| 550 | |
| 551 | return freed; |
| 552 | } |
| 553 | |
Andrew Morton | 2f5b56f | 2013-08-28 10:18:08 +1000 | [diff] [blame] | 554 | static unsigned long |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 555 | xfs_qm_shrink_count( |
| 556 | struct shrinker *shrink, |
| 557 | struct shrink_control *sc) |
| 558 | { |
| 559 | struct xfs_quotainfo *qi = container_of(shrink, |
| 560 | struct xfs_quotainfo, qi_shrinker); |
| 561 | |
| 562 | return list_lru_count_node(&qi->qi_lru, sc->nid); |
| 563 | } |
| 564 | |
Christoph Hellwig | a4edd1d | 2009-01-19 02:03:11 +0100 | [diff] [blame] | 565 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 566 | * This initializes all the quota information that's kept in the |
| 567 | * mount structure |
| 568 | */ |
Christoph Hellwig | ba0f32d | 2005-06-21 15:36:52 +1000 | [diff] [blame] | 569 | STATIC int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 570 | xfs_qm_init_quotainfo( |
| 571 | xfs_mount_t *mp) |
| 572 | { |
| 573 | xfs_quotainfo_t *qinf; |
| 574 | int error; |
| 575 | xfs_dquot_t *dqp; |
| 576 | |
| 577 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
| 578 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 579 | qinf = mp->m_quotainfo = kmem_zalloc(sizeof(xfs_quotainfo_t), KM_SLEEP); |
| 580 | |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 581 | error = list_lru_init(&qinf->qi_lru); |
Dave Chinner | ee4eec4 | 2014-05-15 09:23:24 +1000 | [diff] [blame] | 582 | if (error) |
| 583 | goto out_free_qinf; |
Glauber Costa | 5ca302c | 2013-08-28 10:18:18 +1000 | [diff] [blame] | 584 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 585 | /* |
| 586 | * See if quotainodes are setup, and if not, allocate them, |
| 587 | * and change the superblock accordingly. |
| 588 | */ |
Dave Chinner | ee4eec4 | 2014-05-15 09:23:24 +1000 | [diff] [blame] | 589 | error = xfs_qm_init_quotainos(mp); |
| 590 | if (error) |
| 591 | goto out_free_lru; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 592 | |
Christoph Hellwig | 9f920f1 | 2012-03-13 08:52:35 +0000 | [diff] [blame] | 593 | INIT_RADIX_TREE(&qinf->qi_uquota_tree, GFP_NOFS); |
| 594 | INIT_RADIX_TREE(&qinf->qi_gquota_tree, GFP_NOFS); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 595 | INIT_RADIX_TREE(&qinf->qi_pquota_tree, GFP_NOFS); |
Christoph Hellwig | 9f920f1 | 2012-03-13 08:52:35 +0000 | [diff] [blame] | 596 | mutex_init(&qinf->qi_tree_lock); |
| 597 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 598 | /* mutex used to serialize quotaoffs */ |
Jes Sorensen | 794ee1b | 2006-01-09 15:59:21 -0800 | [diff] [blame] | 599 | mutex_init(&qinf->qi_quotaofflock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 600 | |
| 601 | /* Precalc some constants */ |
| 602 | qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); |
Eric Sandeen | 6ea94bb | 2014-04-14 19:03:34 +1000 | [diff] [blame] | 603 | qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 604 | |
| 605 | mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD); |
| 606 | |
| 607 | /* |
| 608 | * We try to get the limits from the superuser's limits fields. |
| 609 | * This is quite hacky, but it is standard quota practice. |
Christoph Hellwig | 7ae4440 | 2011-12-06 21:58:25 +0000 | [diff] [blame] | 610 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 611 | * We look at the USR dquot with id == 0 first, but if user quotas |
| 612 | * are not enabled we goto the GRP dquot with id == 0. |
| 613 | * We don't really care to keep separate default limits for user |
| 614 | * and group quotas, at least not at this point. |
Christoph Hellwig | 7ae4440 | 2011-12-06 21:58:25 +0000 | [diff] [blame] | 615 | * |
| 616 | * Since we may not have done a quotacheck by this point, just read |
| 617 | * the dquot without attaching it to any hashtables or lists. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 618 | */ |
Christoph Hellwig | 7ae4440 | 2011-12-06 21:58:25 +0000 | [diff] [blame] | 619 | error = xfs_qm_dqread(mp, 0, |
| 620 | XFS_IS_UQUOTA_RUNNING(mp) ? XFS_DQ_USER : |
| 621 | (XFS_IS_GQUOTA_RUNNING(mp) ? XFS_DQ_GROUP : |
| 622 | XFS_DQ_PROJ), |
| 623 | XFS_QMOPT_DOWARN, &dqp); |
| 624 | if (!error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 625 | xfs_disk_dquot_t *ddqp = &dqp->q_core; |
| 626 | |
| 627 | /* |
| 628 | * The warnings and timers set the grace period given to |
| 629 | * a user or group before he or she can not perform any |
| 630 | * more writing. If it is zero, a default is used. |
| 631 | */ |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 632 | qinf->qi_btimelimit = ddqp->d_btimer ? |
| 633 | be32_to_cpu(ddqp->d_btimer) : XFS_QM_BTIMELIMIT; |
| 634 | qinf->qi_itimelimit = ddqp->d_itimer ? |
| 635 | be32_to_cpu(ddqp->d_itimer) : XFS_QM_ITIMELIMIT; |
| 636 | qinf->qi_rtbtimelimit = ddqp->d_rtbtimer ? |
| 637 | be32_to_cpu(ddqp->d_rtbtimer) : XFS_QM_RTBTIMELIMIT; |
| 638 | qinf->qi_bwarnlimit = ddqp->d_bwarns ? |
| 639 | be16_to_cpu(ddqp->d_bwarns) : XFS_QM_BWARNLIMIT; |
| 640 | qinf->qi_iwarnlimit = ddqp->d_iwarns ? |
| 641 | be16_to_cpu(ddqp->d_iwarns) : XFS_QM_IWARNLIMIT; |
| 642 | qinf->qi_rtbwarnlimit = ddqp->d_rtbwarns ? |
| 643 | be16_to_cpu(ddqp->d_rtbwarns) : XFS_QM_RTBWARNLIMIT; |
| 644 | qinf->qi_bhardlimit = be64_to_cpu(ddqp->d_blk_hardlimit); |
| 645 | qinf->qi_bsoftlimit = be64_to_cpu(ddqp->d_blk_softlimit); |
| 646 | qinf->qi_ihardlimit = be64_to_cpu(ddqp->d_ino_hardlimit); |
| 647 | qinf->qi_isoftlimit = be64_to_cpu(ddqp->d_ino_softlimit); |
| 648 | qinf->qi_rtbhardlimit = be64_to_cpu(ddqp->d_rtb_hardlimit); |
| 649 | qinf->qi_rtbsoftlimit = be64_to_cpu(ddqp->d_rtb_softlimit); |
Dave Chinner | ee4eec4 | 2014-05-15 09:23:24 +1000 | [diff] [blame] | 650 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 651 | xfs_qm_dqdestroy(dqp); |
| 652 | } else { |
| 653 | qinf->qi_btimelimit = XFS_QM_BTIMELIMIT; |
| 654 | qinf->qi_itimelimit = XFS_QM_ITIMELIMIT; |
| 655 | qinf->qi_rtbtimelimit = XFS_QM_RTBTIMELIMIT; |
| 656 | qinf->qi_bwarnlimit = XFS_QM_BWARNLIMIT; |
| 657 | qinf->qi_iwarnlimit = XFS_QM_IWARNLIMIT; |
Nathan Scott | 06d10dd | 2005-06-21 15:48:47 +1000 | [diff] [blame] | 658 | qinf->qi_rtbwarnlimit = XFS_QM_RTBWARNLIMIT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 659 | } |
| 660 | |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 661 | qinf->qi_shrinker.count_objects = xfs_qm_shrink_count; |
| 662 | qinf->qi_shrinker.scan_objects = xfs_qm_shrink_scan; |
Christoph Hellwig | f8739c3 | 2012-03-13 08:52:34 +0000 | [diff] [blame] | 663 | qinf->qi_shrinker.seeks = DEFAULT_SEEKS; |
Dave Chinner | cd56a39 | 2013-08-28 10:18:07 +1000 | [diff] [blame] | 664 | qinf->qi_shrinker.flags = SHRINKER_NUMA_AWARE; |
Christoph Hellwig | f8739c3 | 2012-03-13 08:52:34 +0000 | [diff] [blame] | 665 | register_shrinker(&qinf->qi_shrinker); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 666 | return 0; |
Dave Chinner | ee4eec4 | 2014-05-15 09:23:24 +1000 | [diff] [blame] | 667 | |
| 668 | out_free_lru: |
| 669 | list_lru_destroy(&qinf->qi_lru); |
| 670 | out_free_qinf: |
| 671 | kmem_free(qinf); |
| 672 | mp->m_quotainfo = NULL; |
| 673 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 674 | } |
| 675 | |
| 676 | |
| 677 | /* |
| 678 | * Gets called when unmounting a filesystem or when all quotas get |
| 679 | * turned off. |
| 680 | * This purges the quota inodes, destroys locks and frees itself. |
| 681 | */ |
| 682 | void |
| 683 | xfs_qm_destroy_quotainfo( |
| 684 | xfs_mount_t *mp) |
| 685 | { |
| 686 | xfs_quotainfo_t *qi; |
| 687 | |
| 688 | qi = mp->m_quotainfo; |
| 689 | ASSERT(qi != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | |
Christoph Hellwig | f8739c3 | 2012-03-13 08:52:34 +0000 | [diff] [blame] | 691 | unregister_shrinker(&qi->qi_shrinker); |
Glauber Costa | f5e1dd3 | 2013-08-28 10:18:18 +1000 | [diff] [blame] | 692 | list_lru_destroy(&qi->qi_lru); |
Christoph Hellwig | f8739c3 | 2012-03-13 08:52:34 +0000 | [diff] [blame] | 693 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 694 | if (qi->qi_uquotaip) { |
Christoph Hellwig | 26cc0021 | 2008-07-18 17:12:43 +1000 | [diff] [blame] | 695 | IRELE(qi->qi_uquotaip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 696 | qi->qi_uquotaip = NULL; /* paranoia */ |
| 697 | } |
| 698 | if (qi->qi_gquotaip) { |
Christoph Hellwig | 26cc0021 | 2008-07-18 17:12:43 +1000 | [diff] [blame] | 699 | IRELE(qi->qi_gquotaip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 700 | qi->qi_gquotaip = NULL; |
| 701 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 702 | if (qi->qi_pquotaip) { |
| 703 | IRELE(qi->qi_pquotaip); |
| 704 | qi->qi_pquotaip = NULL; |
| 705 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 706 | mutex_destroy(&qi->qi_quotaofflock); |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 707 | kmem_free(qi); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 708 | mp->m_quotainfo = NULL; |
| 709 | } |
| 710 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 711 | /* |
| 712 | * Create an inode and return with a reference already taken, but unlocked |
| 713 | * This is how we create quota inodes |
| 714 | */ |
| 715 | STATIC int |
| 716 | xfs_qm_qino_alloc( |
| 717 | xfs_mount_t *mp, |
| 718 | xfs_inode_t **ip, |
| 719 | __int64_t sbfields, |
| 720 | uint flags) |
| 721 | { |
| 722 | xfs_trans_t *tp; |
| 723 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 724 | int committed; |
| 725 | |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 726 | *ip = NULL; |
| 727 | /* |
| 728 | * With superblock that doesn't have separate pquotino, we |
| 729 | * share an inode between gquota and pquota. If the on-disk |
| 730 | * superblock has GQUOTA and the filesystem is now mounted |
| 731 | * with PQUOTA, just use sb_gquotino for sb_pquotino and |
| 732 | * vice-versa. |
| 733 | */ |
| 734 | if (!xfs_sb_version_has_pquotino(&mp->m_sb) && |
| 735 | (flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) { |
| 736 | xfs_ino_t ino = NULLFSINO; |
| 737 | |
| 738 | if ((flags & XFS_QMOPT_PQUOTA) && |
| 739 | (mp->m_sb.sb_gquotino != NULLFSINO)) { |
| 740 | ino = mp->m_sb.sb_gquotino; |
| 741 | ASSERT(mp->m_sb.sb_pquotino == NULLFSINO); |
| 742 | } else if ((flags & XFS_QMOPT_GQUOTA) && |
| 743 | (mp->m_sb.sb_pquotino != NULLFSINO)) { |
| 744 | ino = mp->m_sb.sb_pquotino; |
| 745 | ASSERT(mp->m_sb.sb_gquotino == NULLFSINO); |
| 746 | } |
| 747 | if (ino != NULLFSINO) { |
| 748 | error = xfs_iget(mp, NULL, ino, 0, 0, ip); |
| 749 | if (error) |
| 750 | return error; |
| 751 | mp->m_sb.sb_gquotino = NULLFSINO; |
| 752 | mp->m_sb.sb_pquotino = NULLFSINO; |
| 753 | } |
| 754 | } |
| 755 | |
Nathan Scott | 061f720 | 2006-01-11 15:27:50 +1100 | [diff] [blame] | 756 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE); |
Jie Liu | 3d3c8b5 | 2013-08-12 20:49:59 +1000 | [diff] [blame] | 757 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_create, |
| 758 | XFS_QM_QINOCREATE_SPACE_RES(mp), 0); |
| 759 | if (error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | xfs_trans_cancel(tp, 0); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 761 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 763 | |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 764 | if (!*ip) { |
| 765 | error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip, |
| 766 | &committed); |
| 767 | if (error) { |
| 768 | xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | |
| 769 | XFS_TRANS_ABORT); |
| 770 | return error; |
| 771 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 775 | * Make the changes in the superblock, and log those too. |
| 776 | * sbfields arg may contain fields other than *QUOTINO; |
| 777 | * VERSIONNUM for example. |
| 778 | */ |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 779 | spin_lock(&mp->m_sb_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 780 | if (flags & XFS_QMOPT_SBVERSION) { |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 781 | ASSERT(!xfs_sb_version_hasquota(&mp->m_sb)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 782 | ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 783 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS)) == |
| 784 | (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | |
| 785 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | |
| 786 | XFS_SB_QFLAGS)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 787 | |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 788 | xfs_sb_version_addquota(&mp->m_sb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | mp->m_sb.sb_uquotino = NULLFSINO; |
| 790 | mp->m_sb.sb_gquotino = NULLFSINO; |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 791 | mp->m_sb.sb_pquotino = NULLFSINO; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 792 | |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 793 | /* qflags will get updated fully _after_ quotacheck */ |
| 794 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | } |
| 796 | if (flags & XFS_QMOPT_UQUOTA) |
| 797 | mp->m_sb.sb_uquotino = (*ip)->i_ino; |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 798 | else if (flags & XFS_QMOPT_GQUOTA) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | mp->m_sb.sb_gquotino = (*ip)->i_ino; |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 800 | else |
| 801 | mp->m_sb.sb_pquotino = (*ip)->i_ino; |
Eric Sandeen | 3685c2a | 2007-10-11 17:42:32 +1000 | [diff] [blame] | 802 | spin_unlock(&mp->m_sb_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | xfs_mod_sb(tp, sbfields); |
| 804 | |
Eric Sandeen | 1c72bf9 | 2007-05-08 13:48:42 +1000 | [diff] [blame] | 805 | if ((error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES))) { |
Dave Chinner | 5348778 | 2011-03-07 10:05:35 +1100 | [diff] [blame] | 806 | xfs_alert(mp, "%s failed (error %d)!", __func__, error); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 807 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 808 | } |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 809 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | |
David Chinner | 5b13973 | 2008-04-10 12:20:10 +1000 | [diff] [blame] | 813 | STATIC void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | xfs_qm_reset_dqcounts( |
| 815 | xfs_mount_t *mp, |
| 816 | xfs_buf_t *bp, |
| 817 | xfs_dqid_t id, |
| 818 | uint type) |
| 819 | { |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 820 | struct xfs_dqblk *dqb; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | int j; |
| 822 | |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 823 | trace_xfs_reset_dqcounts(bp, _RET_IP_); |
| 824 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | /* |
| 826 | * Reset all counters and timers. They'll be |
| 827 | * started afresh by xfs_qm_quotacheck. |
| 828 | */ |
| 829 | #ifdef DEBUG |
| 830 | j = XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB); |
| 831 | do_div(j, sizeof(xfs_dqblk_t)); |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 832 | ASSERT(mp->m_quotainfo->qi_dqperchunk == j); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 833 | #endif |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 834 | dqb = bp->b_addr; |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 835 | for (j = 0; j < mp->m_quotainfo->qi_dqperchunk; j++) { |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 836 | struct xfs_disk_dquot *ddq; |
| 837 | |
| 838 | ddq = (struct xfs_disk_dquot *)&dqb[j]; |
| 839 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 840 | /* |
| 841 | * Do a sanity check, and if needed, repair the dqblk. Don't |
| 842 | * output any warnings because it's perfectly possible to |
Dave Chinner | 9aede1d | 2013-10-15 09:17:52 +1100 | [diff] [blame] | 843 | * find uninitialised dquot blks. See comment in xfs_dqcheck. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 844 | */ |
Dave Chinner | 9aede1d | 2013-10-15 09:17:52 +1100 | [diff] [blame] | 845 | xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR, |
| 846 | "xfs_quotacheck"); |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 847 | ddq->d_bcount = 0; |
| 848 | ddq->d_icount = 0; |
| 849 | ddq->d_rtbcount = 0; |
| 850 | ddq->d_btimer = 0; |
| 851 | ddq->d_itimer = 0; |
| 852 | ddq->d_rtbtimer = 0; |
| 853 | ddq->d_bwarns = 0; |
| 854 | ddq->d_iwarns = 0; |
| 855 | ddq->d_rtbwarns = 0; |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 856 | |
| 857 | if (xfs_sb_version_hascrc(&mp->m_sb)) { |
| 858 | xfs_update_cksum((char *)&dqb[j], |
| 859 | sizeof(struct xfs_dqblk), |
| 860 | XFS_DQUOT_CRC_OFF); |
| 861 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 862 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | } |
| 864 | |
| 865 | STATIC int |
| 866 | xfs_qm_dqiter_bufs( |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 867 | struct xfs_mount *mp, |
| 868 | xfs_dqid_t firstid, |
| 869 | xfs_fsblock_t bno, |
| 870 | xfs_filblks_t blkcnt, |
| 871 | uint flags, |
| 872 | struct list_head *buffer_list) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 873 | { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 874 | struct xfs_buf *bp; |
| 875 | int error; |
| 876 | int type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | |
| 878 | ASSERT(blkcnt > 0); |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 879 | type = flags & XFS_QMOPT_UQUOTA ? XFS_DQ_USER : |
| 880 | (flags & XFS_QMOPT_PQUOTA ? XFS_DQ_PROJ : XFS_DQ_GROUP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | error = 0; |
| 882 | |
| 883 | /* |
| 884 | * Blkcnt arg can be a very big number, and might even be |
| 885 | * larger than the log itself. So, we have to break it up into |
| 886 | * manageable-sized transactions. |
| 887 | * Note that we don't start a permanent transaction here; we might |
| 888 | * not be able to get a log reservation for the whole thing up front, |
| 889 | * and we don't really care to either, because we just discard |
| 890 | * everything if we were to crash in the middle of this loop. |
| 891 | */ |
| 892 | while (blkcnt--) { |
| 893 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
| 894 | XFS_FSB_TO_DADDR(mp, bno), |
Dave Chinner | c631919 | 2012-11-14 17:50:13 +1100 | [diff] [blame] | 895 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
Dave Chinner | 1813dd6 | 2012-11-14 17:54:40 +1100 | [diff] [blame] | 896 | &xfs_dquot_buf_ops); |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 897 | |
| 898 | /* |
| 899 | * CRC and validation errors will return a EFSCORRUPTED here. If |
| 900 | * this occurs, re-read without CRC validation so that we can |
| 901 | * repair the damage via xfs_qm_reset_dqcounts(). This process |
| 902 | * will leave a trace in the log indicating corruption has |
| 903 | * been detected. |
| 904 | */ |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 905 | if (error == -EFSCORRUPTED) { |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 906 | error = xfs_trans_read_buf(mp, NULL, mp->m_ddev_targp, |
| 907 | XFS_FSB_TO_DADDR(mp, bno), |
| 908 | mp->m_quotainfo->qi_dqchunklen, 0, &bp, |
| 909 | NULL); |
| 910 | } |
| 911 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | if (error) |
| 913 | break; |
| 914 | |
Dave Chinner | 5fd364f | 2014-08-04 12:43:26 +1000 | [diff] [blame] | 915 | /* |
| 916 | * A corrupt buffer might not have a verifier attached, so |
| 917 | * make sure we have the correct one attached before writeback |
| 918 | * occurs. |
| 919 | */ |
| 920 | bp->b_ops = &xfs_dquot_buf_ops; |
David Chinner | 5b13973 | 2008-04-10 12:20:10 +1000 | [diff] [blame] | 921 | xfs_qm_reset_dqcounts(mp, bp, firstid, type); |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 922 | xfs_buf_delwri_queue(bp, buffer_list); |
Christoph Hellwig | 61551f1 | 2011-08-23 08:28:06 +0000 | [diff] [blame] | 923 | xfs_buf_relse(bp); |
Dave Chinner | 6fcdc59 | 2013-06-03 15:28:46 +1000 | [diff] [blame] | 924 | |
| 925 | /* goto the next block. */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 926 | bno++; |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 927 | firstid += mp->m_quotainfo->qi_dqperchunk; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | } |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 929 | |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 930 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | } |
| 932 | |
| 933 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 934 | * Iterate over all allocated USR/GRP/PRJ dquots in the system, calling a |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 935 | * caller supplied function for every chunk of dquots that we find. |
| 936 | */ |
| 937 | STATIC int |
| 938 | xfs_qm_dqiterate( |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 939 | struct xfs_mount *mp, |
| 940 | struct xfs_inode *qip, |
| 941 | uint flags, |
| 942 | struct list_head *buffer_list) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 943 | { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 944 | struct xfs_bmbt_irec *map; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | int i, nmaps; /* number of map entries */ |
| 946 | int error; /* return value */ |
| 947 | xfs_fileoff_t lblkno; |
| 948 | xfs_filblks_t maxlblkcnt; |
| 949 | xfs_dqid_t firstid; |
| 950 | xfs_fsblock_t rablkno; |
| 951 | xfs_filblks_t rablkcnt; |
| 952 | |
| 953 | error = 0; |
| 954 | /* |
Nathan Scott | c41564b | 2006-03-29 08:55:14 +1000 | [diff] [blame] | 955 | * This looks racy, but we can't keep an inode lock across a |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 956 | * trans_reserve. But, this gets called during quotacheck, and that |
| 957 | * happens only at mount time which is single threaded. |
| 958 | */ |
| 959 | if (qip->i_d.di_nblocks == 0) |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 960 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 961 | |
| 962 | map = kmem_alloc(XFS_DQITER_MAP_SIZE * sizeof(*map), KM_SLEEP); |
| 963 | |
| 964 | lblkno = 0; |
Dave Chinner | 3297238 | 2012-06-08 15:44:54 +1000 | [diff] [blame] | 965 | maxlblkcnt = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 966 | do { |
Christoph Hellwig | da51d32 | 2013-12-06 12:30:14 -0800 | [diff] [blame] | 967 | uint lock_mode; |
| 968 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 969 | nmaps = XFS_DQITER_MAP_SIZE; |
| 970 | /* |
| 971 | * We aren't changing the inode itself. Just changing |
| 972 | * some of its data. No new blocks are added here, and |
| 973 | * the inode is never added to the transaction. |
| 974 | */ |
Christoph Hellwig | da51d32 | 2013-12-06 12:30:14 -0800 | [diff] [blame] | 975 | lock_mode = xfs_ilock_data_map_shared(qip); |
Dave Chinner | 5c8ed20 | 2011-09-18 20:40:45 +0000 | [diff] [blame] | 976 | error = xfs_bmapi_read(qip, lblkno, maxlblkcnt - lblkno, |
| 977 | map, &nmaps, 0); |
Christoph Hellwig | da51d32 | 2013-12-06 12:30:14 -0800 | [diff] [blame] | 978 | xfs_iunlock(qip, lock_mode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 979 | if (error) |
| 980 | break; |
| 981 | |
| 982 | ASSERT(nmaps <= XFS_DQITER_MAP_SIZE); |
| 983 | for (i = 0; i < nmaps; i++) { |
| 984 | ASSERT(map[i].br_startblock != DELAYSTARTBLOCK); |
| 985 | ASSERT(map[i].br_blockcount); |
| 986 | |
| 987 | |
| 988 | lblkno += map[i].br_blockcount; |
| 989 | |
| 990 | if (map[i].br_startblock == HOLESTARTBLOCK) |
| 991 | continue; |
| 992 | |
| 993 | firstid = (xfs_dqid_t) map[i].br_startoff * |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 994 | mp->m_quotainfo->qi_dqperchunk; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 995 | /* |
| 996 | * Do a read-ahead on the next extent. |
| 997 | */ |
| 998 | if ((i+1 < nmaps) && |
| 999 | (map[i+1].br_startblock != HOLESTARTBLOCK)) { |
| 1000 | rablkcnt = map[i+1].br_blockcount; |
| 1001 | rablkno = map[i+1].br_startblock; |
| 1002 | while (rablkcnt--) { |
Christoph Hellwig | 1a1a3e9 | 2010-10-06 18:41:18 +0000 | [diff] [blame] | 1003 | xfs_buf_readahead(mp->m_ddev_targp, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | XFS_FSB_TO_DADDR(mp, rablkno), |
Dave Chinner | c3f8fc7 | 2012-11-12 22:54:01 +1100 | [diff] [blame] | 1005 | mp->m_quotainfo->qi_dqchunklen, |
Dave Chinner | 5fd364f | 2014-08-04 12:43:26 +1000 | [diff] [blame] | 1006 | &xfs_dquot_buf_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1007 | rablkno++; |
| 1008 | } |
| 1009 | } |
| 1010 | /* |
| 1011 | * Iterate thru all the blks in the extent and |
| 1012 | * reset the counters of all the dquots inside them. |
| 1013 | */ |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1014 | error = xfs_qm_dqiter_bufs(mp, firstid, |
| 1015 | map[i].br_startblock, |
| 1016 | map[i].br_blockcount, |
| 1017 | flags, buffer_list); |
| 1018 | if (error) |
| 1019 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1021 | } while (nmaps > 0); |
| 1022 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1023 | out: |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 1024 | kmem_free(map); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1025 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
| 1028 | /* |
| 1029 | * Called by dqusage_adjust in doing a quotacheck. |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1030 | * |
| 1031 | * Given the inode, and a dquot id this updates both the incore dqout as well |
| 1032 | * as the buffer copy. This is so that once the quotacheck is done, we can |
| 1033 | * just log all the buffers, as opposed to logging numerous updates to |
| 1034 | * individual dquots. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1035 | */ |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1036 | STATIC int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1037 | xfs_qm_quotacheck_dqadjust( |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1038 | struct xfs_inode *ip, |
| 1039 | xfs_dqid_t id, |
| 1040 | uint type, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | xfs_qcnt_t nblks, |
| 1042 | xfs_qcnt_t rtblks) |
| 1043 | { |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1044 | struct xfs_mount *mp = ip->i_mount; |
| 1045 | struct xfs_dquot *dqp; |
| 1046 | int error; |
| 1047 | |
| 1048 | error = xfs_qm_dqget(mp, ip, id, type, |
| 1049 | XFS_QMOPT_DQALLOC | XFS_QMOPT_DOWARN, &dqp); |
| 1050 | if (error) { |
| 1051 | /* |
| 1052 | * Shouldn't be able to turn off quotas here. |
| 1053 | */ |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 1054 | ASSERT(error != -ESRCH); |
| 1055 | ASSERT(error != -ENOENT); |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1056 | return error; |
| 1057 | } |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 1058 | |
| 1059 | trace_xfs_dqadjust(dqp); |
| 1060 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1061 | /* |
| 1062 | * Adjust the inode count and the block count to reflect this inode's |
| 1063 | * resource usage. |
| 1064 | */ |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 1065 | be64_add_cpu(&dqp->q_core.d_icount, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | dqp->q_res_icount++; |
| 1067 | if (nblks) { |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 1068 | be64_add_cpu(&dqp->q_core.d_bcount, nblks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1069 | dqp->q_res_bcount += nblks; |
| 1070 | } |
| 1071 | if (rtblks) { |
Marcin Slusarz | 413d57c | 2008-02-13 15:03:29 -0800 | [diff] [blame] | 1072 | be64_add_cpu(&dqp->q_core.d_rtbcount, rtblks); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1073 | dqp->q_res_rtbcount += rtblks; |
| 1074 | } |
| 1075 | |
| 1076 | /* |
| 1077 | * Set default limits, adjust timers (since we changed usages) |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 1078 | * |
| 1079 | * There are no timers for the default values set in the root dquot. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | */ |
Christoph Hellwig | 191f848 | 2010-04-20 17:01:53 +1000 | [diff] [blame] | 1081 | if (dqp->q_core.d_id) { |
Brian Foster | 4b6eae2e | 2013-03-18 10:51:45 -0400 | [diff] [blame] | 1082 | xfs_qm_adjust_dqlimits(mp, dqp); |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1083 | xfs_qm_adjust_dqtimers(mp, &dqp->q_core); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1084 | } |
| 1085 | |
| 1086 | dqp->dq_flags |= XFS_DQ_DIRTY; |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1087 | xfs_qm_dqput(dqp); |
| 1088 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | STATIC int |
| 1092 | xfs_qm_get_rtblks( |
| 1093 | xfs_inode_t *ip, |
| 1094 | xfs_qcnt_t *O_rtblks) |
| 1095 | { |
| 1096 | xfs_filblks_t rtblks; /* total rt blks */ |
Mandy Kirkconnell | 4eea22f | 2006-03-14 13:29:52 +1100 | [diff] [blame] | 1097 | xfs_extnum_t idx; /* extent record index */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1098 | xfs_ifork_t *ifp; /* inode fork pointer */ |
| 1099 | xfs_extnum_t nextents; /* number of extent entries */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1100 | int error; |
| 1101 | |
| 1102 | ASSERT(XFS_IS_REALTIME_INODE(ip)); |
| 1103 | ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK); |
| 1104 | if (!(ifp->if_flags & XFS_IFEXTENTS)) { |
| 1105 | if ((error = xfs_iread_extents(NULL, ip, XFS_DATA_FORK))) |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1106 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1107 | } |
| 1108 | rtblks = 0; |
Mandy Kirkconnell | 4eea22f | 2006-03-14 13:29:52 +1100 | [diff] [blame] | 1109 | nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t); |
Christoph Hellwig | a6f64d4 | 2007-08-16 16:23:40 +1000 | [diff] [blame] | 1110 | for (idx = 0; idx < nextents; idx++) |
| 1111 | rtblks += xfs_bmbt_get_blockcount(xfs_iext_get_ext(ifp, idx)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1112 | *O_rtblks = (xfs_qcnt_t)rtblks; |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1113 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1114 | } |
| 1115 | |
| 1116 | /* |
| 1117 | * callback routine supplied to bulkstat(). Given an inumber, find its |
| 1118 | * dquots and update them to account for resources taken by that inode. |
| 1119 | */ |
| 1120 | /* ARGSUSED */ |
| 1121 | STATIC int |
| 1122 | xfs_qm_dqusage_adjust( |
| 1123 | xfs_mount_t *mp, /* mount point for filesystem */ |
| 1124 | xfs_ino_t ino, /* inode number to get data for */ |
| 1125 | void __user *buffer, /* not used */ |
| 1126 | int ubsize, /* not used */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1127 | int *ubused, /* not used */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | int *res) /* result code value */ |
| 1129 | { |
| 1130 | xfs_inode_t *ip; |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1131 | xfs_qcnt_t nblks, rtblks = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1132 | int error; |
| 1133 | |
| 1134 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
| 1135 | |
| 1136 | /* |
| 1137 | * rootino must have its resources accounted for, not so with the quota |
| 1138 | * inodes. |
| 1139 | */ |
Chandra Seetharaman | 9cad19d | 2013-06-27 17:25:04 -0500 | [diff] [blame] | 1140 | if (xfs_is_quota_inode(&mp->m_sb, ino)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1141 | *res = BULKSTAT_RV_NOTHING; |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 1142 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1143 | } |
| 1144 | |
| 1145 | /* |
| 1146 | * We don't _need_ to take the ilock EXCL. However, the xfs_qm_dqget |
| 1147 | * interface expects the inode to be exclusively locked because that's |
| 1148 | * the case in all other instances. It's OK that we do this because |
| 1149 | * quotacheck is done only at mount time. |
| 1150 | */ |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1151 | error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip); |
| 1152 | if (error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1153 | *res = BULKSTAT_RV_NOTHING; |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1154 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | } |
| 1156 | |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1157 | ASSERT(ip->i_delayed_blks == 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1158 | |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1159 | if (XFS_IS_REALTIME_INODE(ip)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1160 | /* |
| 1161 | * Walk thru the extent list and count the realtime blocks. |
| 1162 | */ |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1163 | error = xfs_qm_get_rtblks(ip, &rtblks); |
| 1164 | if (error) |
| 1165 | goto error0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1166 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1167 | |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1168 | nblks = (xfs_qcnt_t)ip->i_d.di_nblocks - rtblks; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1169 | |
| 1170 | /* |
| 1171 | * Add the (disk blocks and inode) resources occupied by this |
| 1172 | * inode to its dquots. We do this adjustment in the incore dquot, |
| 1173 | * and also copy the changes to its buffer. |
| 1174 | * We don't care about putting these changes in a transaction |
| 1175 | * envelope because if we crash in the middle of a 'quotacheck' |
| 1176 | * we have to start from the beginning anyway. |
| 1177 | * Once we're done, we'll log all the dquot bufs. |
| 1178 | * |
Nathan Scott | c41564b | 2006-03-29 08:55:14 +1000 | [diff] [blame] | 1179 | * The *QUOTA_ON checks below may look pretty racy, but quotachecks |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1180 | * and quotaoffs don't race. (Quotachecks happen at mount time only). |
| 1181 | */ |
| 1182 | if (XFS_IS_UQUOTA_ON(mp)) { |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1183 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_uid, |
| 1184 | XFS_DQ_USER, nblks, rtblks); |
| 1185 | if (error) |
| 1186 | goto error0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1187 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1188 | |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1189 | if (XFS_IS_GQUOTA_ON(mp)) { |
| 1190 | error = xfs_qm_quotacheck_dqadjust(ip, ip->i_d.di_gid, |
| 1191 | XFS_DQ_GROUP, nblks, rtblks); |
| 1192 | if (error) |
| 1193 | goto error0; |
| 1194 | } |
| 1195 | |
| 1196 | if (XFS_IS_PQUOTA_ON(mp)) { |
Arkadiusz Mi?kiewicz | 6743099 | 2010-09-26 06:10:18 +0000 | [diff] [blame] | 1197 | error = xfs_qm_quotacheck_dqadjust(ip, xfs_get_projid(ip), |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1198 | XFS_DQ_PROJ, nblks, rtblks); |
| 1199 | if (error) |
| 1200 | goto error0; |
| 1201 | } |
| 1202 | |
| 1203 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
| 1204 | IRELE(ip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1205 | *res = BULKSTAT_RV_DIDONE; |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1206 | return 0; |
Christoph Hellwig | 52fda11 | 2010-09-06 01:44:22 +0000 | [diff] [blame] | 1207 | |
| 1208 | error0: |
| 1209 | xfs_iunlock(ip, XFS_ILOCK_EXCL); |
| 1210 | IRELE(ip); |
| 1211 | *res = BULKSTAT_RV_GIVEUP; |
| 1212 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | } |
| 1214 | |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1215 | STATIC int |
| 1216 | xfs_qm_flush_one( |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1217 | struct xfs_dquot *dqp, |
| 1218 | void *data) |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1219 | { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1220 | struct list_head *buffer_list = data; |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 1221 | struct xfs_buf *bp = NULL; |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1222 | int error = 0; |
| 1223 | |
| 1224 | xfs_dqlock(dqp); |
| 1225 | if (dqp->dq_flags & XFS_DQ_FREEING) |
| 1226 | goto out_unlock; |
| 1227 | if (!XFS_DQ_IS_DIRTY(dqp)) |
| 1228 | goto out_unlock; |
| 1229 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1230 | xfs_dqflock(dqp); |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 1231 | error = xfs_qm_dqflush(dqp, &bp); |
| 1232 | if (error) |
| 1233 | goto out_unlock; |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1234 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1235 | xfs_buf_delwri_queue(bp, buffer_list); |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 1236 | xfs_buf_relse(bp); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1237 | out_unlock: |
| 1238 | xfs_dqunlock(dqp); |
| 1239 | return error; |
| 1240 | } |
| 1241 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1242 | /* |
| 1243 | * Walk thru all the filesystem inodes and construct a consistent view |
| 1244 | * of the disk quota world. If the quotacheck fails, disable quotas. |
| 1245 | */ |
Jie Liu | eb866bb | 2014-07-24 20:49:57 +1000 | [diff] [blame] | 1246 | STATIC int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1247 | xfs_qm_quotacheck( |
| 1248 | xfs_mount_t *mp) |
| 1249 | { |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1250 | int done, count, error, error2; |
| 1251 | xfs_ino_t lastino; |
| 1252 | size_t structsz; |
| 1253 | uint flags; |
| 1254 | LIST_HEAD (buffer_list); |
| 1255 | struct xfs_inode *uip = mp->m_quotainfo->qi_uquotaip; |
| 1256 | struct xfs_inode *gip = mp->m_quotainfo->qi_gquotaip; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1257 | struct xfs_inode *pip = mp->m_quotainfo->qi_pquotaip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | |
| 1259 | count = INT_MAX; |
| 1260 | structsz = 1; |
| 1261 | lastino = 0; |
| 1262 | flags = 0; |
| 1263 | |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1264 | ASSERT(uip || gip || pip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1265 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
| 1266 | |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 1267 | xfs_notice(mp, "Quotacheck needed: Please wait."); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1268 | |
| 1269 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1270 | * First we go thru all the dquots on disk, USR and GRP/PRJ, and reset |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1271 | * their counters to zero. We need a clean slate. |
| 1272 | * We don't log our changes till later. |
| 1273 | */ |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 1274 | if (uip) { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1275 | error = xfs_qm_dqiterate(mp, uip, XFS_QMOPT_UQUOTA, |
| 1276 | &buffer_list); |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 1277 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1278 | goto error_return; |
| 1279 | flags |= XFS_UQUOTA_CHKD; |
| 1280 | } |
| 1281 | |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 1282 | if (gip) { |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1283 | error = xfs_qm_dqiterate(mp, gip, XFS_QMOPT_GQUOTA, |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1284 | &buffer_list); |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 1285 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1286 | goto error_return; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1287 | flags |= XFS_GQUOTA_CHKD; |
| 1288 | } |
| 1289 | |
| 1290 | if (pip) { |
| 1291 | error = xfs_qm_dqiterate(mp, pip, XFS_QMOPT_PQUOTA, |
| 1292 | &buffer_list); |
| 1293 | if (error) |
| 1294 | goto error_return; |
| 1295 | flags |= XFS_PQUOTA_CHKD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1296 | } |
| 1297 | |
| 1298 | do { |
| 1299 | /* |
| 1300 | * Iterate thru all the inodes in the file system, |
| 1301 | * adjusting the corresponding dquot counters in core. |
| 1302 | */ |
Christoph Hellwig | 7dce11d | 2010-06-23 18:11:11 +1000 | [diff] [blame] | 1303 | error = xfs_bulkstat(mp, &lastino, &count, |
| 1304 | xfs_qm_dqusage_adjust, |
| 1305 | structsz, NULL, &done); |
| 1306 | if (error) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1307 | break; |
| 1308 | |
Christoph Hellwig | 7dce11d | 2010-06-23 18:11:11 +1000 | [diff] [blame] | 1309 | } while (!done); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1310 | |
| 1311 | /* |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1312 | * We've made all the changes that we need to make incore. Flush them |
| 1313 | * down to disk buffers if everything was updated successfully. |
David Chinner | 4b8879d | 2008-04-10 12:20:17 +1000 | [diff] [blame] | 1314 | */ |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1315 | if (XFS_IS_UQUOTA_ON(mp)) { |
| 1316 | error = xfs_qm_dquot_walk(mp, XFS_DQ_USER, xfs_qm_flush_one, |
| 1317 | &buffer_list); |
| 1318 | } |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1319 | if (XFS_IS_GQUOTA_ON(mp)) { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1320 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_GROUP, xfs_qm_flush_one, |
| 1321 | &buffer_list); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1322 | if (!error) |
| 1323 | error = error2; |
| 1324 | } |
| 1325 | if (XFS_IS_PQUOTA_ON(mp)) { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1326 | error2 = xfs_qm_dquot_walk(mp, XFS_DQ_PROJ, xfs_qm_flush_one, |
| 1327 | &buffer_list); |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1328 | if (!error) |
| 1329 | error = error2; |
| 1330 | } |
David Chinner | 4b8879d | 2008-04-10 12:20:17 +1000 | [diff] [blame] | 1331 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1332 | error2 = xfs_buf_delwri_submit(&buffer_list); |
| 1333 | if (!error) |
| 1334 | error = error2; |
| 1335 | |
David Chinner | 4b8879d | 2008-04-10 12:20:17 +1000 | [diff] [blame] | 1336 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1337 | * We can get this error if we couldn't do a dquot allocation inside |
| 1338 | * xfs_qm_dqusage_adjust (via bulkstat). We don't care about the |
| 1339 | * dirty dquots that might be cached, we just want to get rid of them |
| 1340 | * and turn quotaoff. The dquots won't be attached to any of the inodes |
| 1341 | * at this point (because we intentionally didn't in dqget_noattach). |
| 1342 | */ |
| 1343 | if (error) { |
Christoph Hellwig | 8112e9d | 2010-04-20 17:02:29 +1000 | [diff] [blame] | 1344 | xfs_qm_dqpurge_all(mp, XFS_QMOPT_QUOTALL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1345 | goto error_return; |
| 1346 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1347 | |
| 1348 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1349 | * If one type of quotas is off, then it will lose its |
| 1350 | * quotachecked status, since we won't be doing accounting for |
| 1351 | * that type anymore. |
| 1352 | */ |
Chandra Seetharaman | 4177af3 | 2012-01-23 17:31:43 +0000 | [diff] [blame] | 1353 | mp->m_qflags &= ~XFS_ALL_QUOTA_CHKD; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1354 | mp->m_qflags |= flags; |
| 1355 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1356 | error_return: |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 1357 | while (!list_empty(&buffer_list)) { |
| 1358 | struct xfs_buf *bp = |
| 1359 | list_first_entry(&buffer_list, struct xfs_buf, b_list); |
| 1360 | list_del_init(&bp->b_list); |
| 1361 | xfs_buf_relse(bp); |
| 1362 | } |
| 1363 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1364 | if (error) { |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 1365 | xfs_warn(mp, |
| 1366 | "Quotacheck: Unsuccessful (Error %d): Disabling quotas.", |
| 1367 | error); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1368 | /* |
| 1369 | * We must turn off quotas. |
| 1370 | */ |
| 1371 | ASSERT(mp->m_quotainfo != NULL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1372 | xfs_qm_destroy_quotainfo(mp); |
David Chinner | 31d5577 | 2008-04-10 12:20:38 +1000 | [diff] [blame] | 1373 | if (xfs_mount_reset_sbqflags(mp)) { |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 1374 | xfs_warn(mp, |
| 1375 | "Quotacheck: Failed to reset quota flags."); |
David Chinner | 31d5577 | 2008-04-10 12:20:38 +1000 | [diff] [blame] | 1376 | } |
Dave Chinner | 0b932cc | 2011-03-07 10:08:35 +1100 | [diff] [blame] | 1377 | } else |
| 1378 | xfs_notice(mp, "Quotacheck: Done."); |
Eric Sandeen | d99831f | 2014-06-22 15:03:54 +1000 | [diff] [blame] | 1379 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1380 | } |
| 1381 | |
| 1382 | /* |
Jie Liu | eb866bb | 2014-07-24 20:49:57 +1000 | [diff] [blame] | 1383 | * This is called from xfs_mountfs to start quotas and initialize all |
| 1384 | * necessary data structures like quotainfo. This is also responsible for |
| 1385 | * running a quotacheck as necessary. We are guaranteed that the superblock |
| 1386 | * is consistently read in at this point. |
| 1387 | * |
| 1388 | * If we fail here, the mount will continue with quota turned off. We don't |
| 1389 | * need to inidicate success or failure at all. |
| 1390 | */ |
| 1391 | void |
| 1392 | xfs_qm_mount_quotas( |
| 1393 | struct xfs_mount *mp) |
| 1394 | { |
| 1395 | int error = 0; |
| 1396 | uint sbf; |
| 1397 | |
| 1398 | /* |
| 1399 | * If quotas on realtime volumes is not supported, we disable |
| 1400 | * quotas immediately. |
| 1401 | */ |
| 1402 | if (mp->m_sb.sb_rextents) { |
| 1403 | xfs_notice(mp, "Cannot turn on quotas for realtime filesystem"); |
| 1404 | mp->m_qflags = 0; |
| 1405 | goto write_changes; |
| 1406 | } |
| 1407 | |
| 1408 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
| 1409 | |
| 1410 | /* |
| 1411 | * Allocate the quotainfo structure inside the mount struct, and |
| 1412 | * create quotainode(s), and change/rev superblock if necessary. |
| 1413 | */ |
| 1414 | error = xfs_qm_init_quotainfo(mp); |
| 1415 | if (error) { |
| 1416 | /* |
| 1417 | * We must turn off quotas. |
| 1418 | */ |
| 1419 | ASSERT(mp->m_quotainfo == NULL); |
| 1420 | mp->m_qflags = 0; |
| 1421 | goto write_changes; |
| 1422 | } |
| 1423 | /* |
| 1424 | * If any of the quotas are not consistent, do a quotacheck. |
| 1425 | */ |
| 1426 | if (XFS_QM_NEED_QUOTACHECK(mp)) { |
| 1427 | error = xfs_qm_quotacheck(mp); |
| 1428 | if (error) { |
| 1429 | /* Quotacheck failed and disabled quotas. */ |
| 1430 | return; |
| 1431 | } |
| 1432 | } |
| 1433 | /* |
| 1434 | * If one type of quotas is off, then it will lose its |
| 1435 | * quotachecked status, since we won't be doing accounting for |
| 1436 | * that type anymore. |
| 1437 | */ |
| 1438 | if (!XFS_IS_UQUOTA_ON(mp)) |
| 1439 | mp->m_qflags &= ~XFS_UQUOTA_CHKD; |
| 1440 | if (!XFS_IS_GQUOTA_ON(mp)) |
| 1441 | mp->m_qflags &= ~XFS_GQUOTA_CHKD; |
| 1442 | if (!XFS_IS_PQUOTA_ON(mp)) |
| 1443 | mp->m_qflags &= ~XFS_PQUOTA_CHKD; |
| 1444 | |
| 1445 | write_changes: |
| 1446 | /* |
| 1447 | * We actually don't have to acquire the m_sb_lock at all. |
| 1448 | * This can only be called from mount, and that's single threaded. XXX |
| 1449 | */ |
| 1450 | spin_lock(&mp->m_sb_lock); |
| 1451 | sbf = mp->m_sb.sb_qflags; |
| 1452 | mp->m_sb.sb_qflags = mp->m_qflags & XFS_MOUNT_QUOTA_ALL; |
| 1453 | spin_unlock(&mp->m_sb_lock); |
| 1454 | |
| 1455 | if (sbf != (mp->m_qflags & XFS_MOUNT_QUOTA_ALL)) { |
| 1456 | if (xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS)) { |
| 1457 | /* |
| 1458 | * We could only have been turning quotas off. |
| 1459 | * We aren't in very good shape actually because |
| 1460 | * the incore structures are convinced that quotas are |
| 1461 | * off, but the on disk superblock doesn't know that ! |
| 1462 | */ |
| 1463 | ASSERT(!(XFS_IS_QUOTA_RUNNING(mp))); |
| 1464 | xfs_alert(mp, "%s: Superblock update failed!", |
| 1465 | __func__); |
| 1466 | } |
| 1467 | } |
| 1468 | |
| 1469 | if (error) { |
| 1470 | xfs_warn(mp, "Failed to initialize disk quotas."); |
| 1471 | return; |
| 1472 | } |
| 1473 | } |
| 1474 | |
| 1475 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1476 | * This is called after the superblock has been read in and we're ready to |
| 1477 | * iget the quota inodes. |
| 1478 | */ |
| 1479 | STATIC int |
| 1480 | xfs_qm_init_quotainos( |
| 1481 | xfs_mount_t *mp) |
| 1482 | { |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1483 | struct xfs_inode *uip = NULL; |
| 1484 | struct xfs_inode *gip = NULL; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1485 | struct xfs_inode *pip = NULL; |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1486 | int error; |
| 1487 | __int64_t sbflags = 0; |
| 1488 | uint flags = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1489 | |
| 1490 | ASSERT(mp->m_quotainfo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1491 | |
| 1492 | /* |
| 1493 | * Get the uquota and gquota inodes |
| 1494 | */ |
Eric Sandeen | 6211870 | 2008-03-06 13:44:28 +1100 | [diff] [blame] | 1495 | if (xfs_sb_version_hasquota(&mp->m_sb)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1496 | if (XFS_IS_UQUOTA_ON(mp) && |
| 1497 | mp->m_sb.sb_uquotino != NULLFSINO) { |
| 1498 | ASSERT(mp->m_sb.sb_uquotino > 0); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1499 | error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, |
| 1500 | 0, 0, &uip); |
| 1501 | if (error) |
Eric Sandeen | b474c7a | 2014-06-22 15:04:54 +1000 | [diff] [blame] | 1502 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1503 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1504 | if (XFS_IS_GQUOTA_ON(mp) && |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1505 | mp->m_sb.sb_gquotino != NULLFSINO) { |
| 1506 | ASSERT(mp->m_sb.sb_gquotino > 0); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1507 | error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, |
| 1508 | 0, 0, &gip); |
| 1509 | if (error) |
| 1510 | goto error_rele; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1511 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1512 | if (XFS_IS_PQUOTA_ON(mp) && |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 1513 | mp->m_sb.sb_pquotino != NULLFSINO) { |
| 1514 | ASSERT(mp->m_sb.sb_pquotino > 0); |
| 1515 | error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1516 | 0, 0, &pip); |
| 1517 | if (error) |
| 1518 | goto error_rele; |
| 1519 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1520 | } else { |
| 1521 | flags |= XFS_QMOPT_SBVERSION; |
| 1522 | sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 1523 | XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | |
| 1524 | XFS_SB_QFLAGS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1525 | } |
| 1526 | |
| 1527 | /* |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1528 | * Create the three inodes, if they don't exist already. The changes |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1529 | * made above will get added to a transaction and logged in one of |
| 1530 | * the qino_alloc calls below. If the device is readonly, |
| 1531 | * temporarily switch to read-write to do this. |
| 1532 | */ |
| 1533 | if (XFS_IS_UQUOTA_ON(mp) && uip == NULL) { |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1534 | error = xfs_qm_qino_alloc(mp, &uip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1535 | sbflags | XFS_SB_UQUOTINO, |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1536 | flags | XFS_QMOPT_UQUOTA); |
| 1537 | if (error) |
| 1538 | goto error_rele; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1539 | |
| 1540 | flags &= ~XFS_QMOPT_SBVERSION; |
| 1541 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1542 | if (XFS_IS_GQUOTA_ON(mp) && gip == NULL) { |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1543 | error = xfs_qm_qino_alloc(mp, &gip, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1544 | sbflags | XFS_SB_GQUOTINO, |
| 1545 | flags | XFS_QMOPT_GQUOTA); |
| 1546 | if (error) |
| 1547 | goto error_rele; |
| 1548 | |
| 1549 | flags &= ~XFS_QMOPT_SBVERSION; |
| 1550 | } |
| 1551 | if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) { |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1552 | error = xfs_qm_qino_alloc(mp, &pip, |
Chandra Seetharaman | d892d58 | 2013-07-19 17:36:02 -0500 | [diff] [blame] | 1553 | sbflags | XFS_SB_PQUOTINO, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1554 | flags | XFS_QMOPT_PQUOTA); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1555 | if (error) |
| 1556 | goto error_rele; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1557 | } |
| 1558 | |
Christoph Hellwig | 8a7b8a8 | 2010-04-20 17:01:30 +1000 | [diff] [blame] | 1559 | mp->m_quotainfo->qi_uquotaip = uip; |
| 1560 | mp->m_quotainfo->qi_gquotaip = gip; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1561 | mp->m_quotainfo->qi_pquotaip = pip; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1562 | |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1563 | return 0; |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1564 | |
| 1565 | error_rele: |
| 1566 | if (uip) |
| 1567 | IRELE(uip); |
| 1568 | if (gip) |
| 1569 | IRELE(gip); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1570 | if (pip) |
| 1571 | IRELE(pip); |
Eric Sandeen | b474c7a | 2014-06-22 15:04:54 +1000 | [diff] [blame] | 1572 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1573 | } |
| 1574 | |
Christoph Hellwig | 92b2e5b | 2012-02-01 13:57:20 +0000 | [diff] [blame] | 1575 | STATIC void |
| 1576 | xfs_qm_dqfree_one( |
| 1577 | struct xfs_dquot *dqp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1578 | { |
Christoph Hellwig | 92b2e5b | 2012-02-01 13:57:20 +0000 | [diff] [blame] | 1579 | struct xfs_mount *mp = dqp->q_mount; |
| 1580 | struct xfs_quotainfo *qi = mp->m_quotainfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1581 | |
Christoph Hellwig | 9f920f1 | 2012-03-13 08:52:35 +0000 | [diff] [blame] | 1582 | mutex_lock(&qi->qi_tree_lock); |
Chandra Seetharaman | 329e087 | 2013-06-27 17:25:05 -0500 | [diff] [blame] | 1583 | radix_tree_delete(xfs_dquot_tree(qi, dqp->q_core.d_flags), |
Christoph Hellwig | 9f920f1 | 2012-03-13 08:52:35 +0000 | [diff] [blame] | 1584 | be32_to_cpu(dqp->q_core.d_id)); |
Christoph Hellwig | bf72de3 | 2011-12-06 21:58:19 +0000 | [diff] [blame] | 1585 | |
Christoph Hellwig | 92b2e5b | 2012-02-01 13:57:20 +0000 | [diff] [blame] | 1586 | qi->qi_dquots--; |
Christoph Hellwig | b84a3a9 | 2012-03-14 11:53:34 -0500 | [diff] [blame] | 1587 | mutex_unlock(&qi->qi_tree_lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1588 | |
Christoph Hellwig | 92b2e5b | 2012-02-01 13:57:20 +0000 | [diff] [blame] | 1589 | xfs_qm_dqdestroy(dqp); |
| 1590 | } |
Christoph Hellwig | be7ffc3 | 2011-12-06 21:58:17 +0000 | [diff] [blame] | 1591 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1592 | /* |
| 1593 | * Start a transaction and write the incore superblock changes to |
| 1594 | * disk. flags parameter indicates which fields have changed. |
| 1595 | */ |
| 1596 | int |
| 1597 | xfs_qm_write_sb_changes( |
| 1598 | xfs_mount_t *mp, |
| 1599 | __int64_t flags) |
| 1600 | { |
| 1601 | xfs_trans_t *tp; |
| 1602 | int error; |
| 1603 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1604 | tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE); |
Jie Liu | 3d3c8b5 | 2013-08-12 20:49:59 +1000 | [diff] [blame] | 1605 | error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_sbchange, 0, 0); |
Jeff Liu | f910a8c | 2013-01-28 21:26:34 +0800 | [diff] [blame] | 1606 | if (error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1607 | xfs_trans_cancel(tp, 0); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1608 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1609 | } |
| 1610 | |
| 1611 | xfs_mod_sb(tp, flags); |
David Chinner | e5720ee | 2008-04-10 12:21:18 +1000 | [diff] [blame] | 1612 | error = xfs_trans_commit(tp, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1613 | |
David Chinner | e5720ee | 2008-04-10 12:21:18 +1000 | [diff] [blame] | 1614 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1615 | } |
| 1616 | |
| 1617 | |
| 1618 | /* --------------- utility functions for vnodeops ---------------- */ |
| 1619 | |
| 1620 | |
| 1621 | /* |
Christoph Hellwig | 6c77b0e | 2010-10-06 18:41:17 +0000 | [diff] [blame] | 1622 | * Given an inode, a uid, gid and prid make sure that we have |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1623 | * allocated relevant dquot(s) on disk, and that we won't exceed inode |
| 1624 | * quotas by creating this file. |
| 1625 | * This also attaches dquot(s) to the given inode after locking it, |
| 1626 | * and returns the dquots corresponding to the uid and/or gid. |
| 1627 | * |
| 1628 | * in : inode (unlocked) |
| 1629 | * out : udquot, gdquot with references taken and unlocked |
| 1630 | */ |
| 1631 | int |
| 1632 | xfs_qm_vop_dqalloc( |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1633 | struct xfs_inode *ip, |
Dwight Engen | 7aab1b2 | 2013-08-15 14:08:01 -0400 | [diff] [blame] | 1634 | xfs_dqid_t uid, |
| 1635 | xfs_dqid_t gid, |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1636 | prid_t prid, |
| 1637 | uint flags, |
| 1638 | struct xfs_dquot **O_udqpp, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1639 | struct xfs_dquot **O_gdqpp, |
| 1640 | struct xfs_dquot **O_pdqpp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1641 | { |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1642 | struct xfs_mount *mp = ip->i_mount; |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1643 | struct xfs_dquot *uq = NULL; |
| 1644 | struct xfs_dquot *gq = NULL; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1645 | struct xfs_dquot *pq = NULL; |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1646 | int error; |
| 1647 | uint lockflags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1648 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1649 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1650 | return 0; |
| 1651 | |
| 1652 | lockflags = XFS_ILOCK_EXCL; |
| 1653 | xfs_ilock(ip, lockflags); |
| 1654 | |
Christoph Hellwig | bd186aa | 2007-08-30 17:21:12 +1000 | [diff] [blame] | 1655 | if ((flags & XFS_QMOPT_INHERIT) && XFS_INHERIT_GID(ip)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1656 | gid = ip->i_d.di_gid; |
| 1657 | |
| 1658 | /* |
| 1659 | * Attach the dquot(s) to this inode, doing a dquot allocation |
| 1660 | * if necessary. The dquot(s) will not be locked. |
| 1661 | */ |
| 1662 | if (XFS_NOT_DQATTACHED(mp, ip)) { |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1663 | error = xfs_qm_dqattach_locked(ip, XFS_QMOPT_DQALLOC); |
| 1664 | if (error) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1665 | xfs_iunlock(ip, lockflags); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1666 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1667 | } |
| 1668 | } |
| 1669 | |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1670 | if ((flags & XFS_QMOPT_UQUOTA) && XFS_IS_UQUOTA_ON(mp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1671 | if (ip->i_d.di_uid != uid) { |
| 1672 | /* |
| 1673 | * What we need is the dquot that has this uid, and |
| 1674 | * if we send the inode to dqget, the uid of the inode |
| 1675 | * takes priority over what's sent in the uid argument. |
| 1676 | * We must unlock inode here before calling dqget if |
| 1677 | * we're not sending the inode, because otherwise |
| 1678 | * we'll deadlock by doing trans_reserve while |
| 1679 | * holding ilock. |
| 1680 | */ |
| 1681 | xfs_iunlock(ip, lockflags); |
Dwight Engen | 7aab1b2 | 2013-08-15 14:08:01 -0400 | [diff] [blame] | 1682 | error = xfs_qm_dqget(mp, NULL, uid, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1683 | XFS_DQ_USER, |
| 1684 | XFS_QMOPT_DQALLOC | |
| 1685 | XFS_QMOPT_DOWARN, |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1686 | &uq); |
| 1687 | if (error) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 1688 | ASSERT(error != -ENOENT); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1689 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1690 | } |
| 1691 | /* |
| 1692 | * Get the ilock in the right order. |
| 1693 | */ |
| 1694 | xfs_dqunlock(uq); |
| 1695 | lockflags = XFS_ILOCK_SHARED; |
| 1696 | xfs_ilock(ip, lockflags); |
| 1697 | } else { |
| 1698 | /* |
| 1699 | * Take an extra reference, because we'll return |
| 1700 | * this to caller |
| 1701 | */ |
| 1702 | ASSERT(ip->i_udquot); |
Christoph Hellwig | 78e5589 | 2011-12-06 21:58:22 +0000 | [diff] [blame] | 1703 | uq = xfs_qm_dqhold(ip->i_udquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1704 | } |
| 1705 | } |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1706 | if ((flags & XFS_QMOPT_GQUOTA) && XFS_IS_GQUOTA_ON(mp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1707 | if (ip->i_d.di_gid != gid) { |
| 1708 | xfs_iunlock(ip, lockflags); |
Dwight Engen | 7aab1b2 | 2013-08-15 14:08:01 -0400 | [diff] [blame] | 1709 | error = xfs_qm_dqget(mp, NULL, gid, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1710 | XFS_DQ_GROUP, |
| 1711 | XFS_QMOPT_DQALLOC | |
| 1712 | XFS_QMOPT_DOWARN, |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1713 | &gq); |
| 1714 | if (error) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 1715 | ASSERT(error != -ENOENT); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1716 | goto error_rele; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | } |
| 1718 | xfs_dqunlock(gq); |
| 1719 | lockflags = XFS_ILOCK_SHARED; |
| 1720 | xfs_ilock(ip, lockflags); |
| 1721 | } else { |
| 1722 | ASSERT(ip->i_gdquot); |
Christoph Hellwig | 78e5589 | 2011-12-06 21:58:22 +0000 | [diff] [blame] | 1723 | gq = xfs_qm_dqhold(ip->i_gdquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1724 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1725 | } |
| 1726 | if ((flags & XFS_QMOPT_PQUOTA) && XFS_IS_PQUOTA_ON(mp)) { |
Arkadiusz Mi?kiewicz | 6743099 | 2010-09-26 06:10:18 +0000 | [diff] [blame] | 1727 | if (xfs_get_projid(ip) != prid) { |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1728 | xfs_iunlock(ip, lockflags); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1729 | error = xfs_qm_dqget(mp, NULL, (xfs_dqid_t)prid, |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1730 | XFS_DQ_PROJ, |
| 1731 | XFS_QMOPT_DQALLOC | |
| 1732 | XFS_QMOPT_DOWARN, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1733 | &pq); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1734 | if (error) { |
Dave Chinner | 2451337 | 2014-06-25 14:58:08 +1000 | [diff] [blame] | 1735 | ASSERT(error != -ENOENT); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1736 | goto error_rele; |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1737 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1738 | xfs_dqunlock(pq); |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1739 | lockflags = XFS_ILOCK_SHARED; |
| 1740 | xfs_ilock(ip, lockflags); |
| 1741 | } else { |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1742 | ASSERT(ip->i_pdquot); |
| 1743 | pq = xfs_qm_dqhold(ip->i_pdquot); |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1744 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1745 | } |
| 1746 | if (uq) |
Christoph Hellwig | 0b1b213 | 2009-12-14 23:14:59 +0000 | [diff] [blame] | 1747 | trace_xfs_dquot_dqalloc(ip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1748 | |
| 1749 | xfs_iunlock(ip, lockflags); |
| 1750 | if (O_udqpp) |
| 1751 | *O_udqpp = uq; |
| 1752 | else if (uq) |
| 1753 | xfs_qm_dqrele(uq); |
| 1754 | if (O_gdqpp) |
| 1755 | *O_gdqpp = gq; |
| 1756 | else if (gq) |
| 1757 | xfs_qm_dqrele(gq); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1758 | if (O_pdqpp) |
| 1759 | *O_pdqpp = pq; |
| 1760 | else if (pq) |
| 1761 | xfs_qm_dqrele(pq); |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1762 | return 0; |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1763 | |
| 1764 | error_rele: |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1765 | if (gq) |
| 1766 | xfs_qm_dqrele(gq); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1767 | if (uq) |
| 1768 | xfs_qm_dqrele(uq); |
| 1769 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1770 | } |
| 1771 | |
| 1772 | /* |
| 1773 | * Actually transfer ownership, and do dquot modifications. |
| 1774 | * These were already reserved. |
| 1775 | */ |
| 1776 | xfs_dquot_t * |
| 1777 | xfs_qm_vop_chown( |
| 1778 | xfs_trans_t *tp, |
| 1779 | xfs_inode_t *ip, |
| 1780 | xfs_dquot_t **IO_olddq, |
| 1781 | xfs_dquot_t *newdq) |
| 1782 | { |
| 1783 | xfs_dquot_t *prevdq; |
Nathan Scott | 06d10dd | 2005-06-21 15:48:47 +1000 | [diff] [blame] | 1784 | uint bfield = XFS_IS_REALTIME_INODE(ip) ? |
| 1785 | XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT; |
| 1786 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1787 | |
Christoph Hellwig | 579aa9c | 2008-04-22 17:34:00 +1000 | [diff] [blame] | 1788 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1789 | ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount)); |
| 1790 | |
| 1791 | /* old dquot */ |
| 1792 | prevdq = *IO_olddq; |
| 1793 | ASSERT(prevdq); |
| 1794 | ASSERT(prevdq != newdq); |
| 1795 | |
Nathan Scott | 06d10dd | 2005-06-21 15:48:47 +1000 | [diff] [blame] | 1796 | xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks)); |
| 1797 | xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1798 | |
| 1799 | /* the sparkling new dquot */ |
Nathan Scott | 06d10dd | 2005-06-21 15:48:47 +1000 | [diff] [blame] | 1800 | xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks); |
| 1801 | xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1802 | |
| 1803 | /* |
Christoph Hellwig | 78e5589 | 2011-12-06 21:58:22 +0000 | [diff] [blame] | 1804 | * Take an extra reference, because the inode is going to keep |
| 1805 | * this dquot pointer even after the trans_commit. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1806 | */ |
Christoph Hellwig | 78e5589 | 2011-12-06 21:58:22 +0000 | [diff] [blame] | 1807 | *IO_olddq = xfs_qm_dqhold(newdq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1808 | |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1809 | return prevdq; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1810 | } |
| 1811 | |
| 1812 | /* |
Nathan Scott | c8ad20f | 2005-06-21 15:38:48 +1000 | [diff] [blame] | 1813 | * Quota reservations for setattr(AT_UID|AT_GID|AT_PROJID). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1814 | */ |
| 1815 | int |
| 1816 | xfs_qm_vop_chown_reserve( |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1817 | struct xfs_trans *tp, |
| 1818 | struct xfs_inode *ip, |
| 1819 | struct xfs_dquot *udqp, |
| 1820 | struct xfs_dquot *gdqp, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1821 | struct xfs_dquot *pdqp, |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1822 | uint flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1823 | { |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1824 | struct xfs_mount *mp = ip->i_mount; |
| 1825 | uint delblks, blkflags, prjflags = 0; |
| 1826 | struct xfs_dquot *udq_unres = NULL; |
| 1827 | struct xfs_dquot *gdq_unres = NULL; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1828 | struct xfs_dquot *pdq_unres = NULL; |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1829 | struct xfs_dquot *udq_delblks = NULL; |
| 1830 | struct xfs_dquot *gdq_delblks = NULL; |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1831 | struct xfs_dquot *pdq_delblks = NULL; |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1832 | int error; |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1833 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1834 | |
Christoph Hellwig | 579aa9c | 2008-04-22 17:34:00 +1000 | [diff] [blame] | 1835 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1836 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
| 1837 | |
| 1838 | delblks = ip->i_delayed_blks; |
Nathan Scott | 06d10dd | 2005-06-21 15:48:47 +1000 | [diff] [blame] | 1839 | blkflags = XFS_IS_REALTIME_INODE(ip) ? |
| 1840 | XFS_QMOPT_RES_RTBLKS : XFS_QMOPT_RES_REGBLKS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1841 | |
| 1842 | if (XFS_IS_UQUOTA_ON(mp) && udqp && |
Dwight Engen | 7aab1b2 | 2013-08-15 14:08:01 -0400 | [diff] [blame] | 1843 | ip->i_d.di_uid != be32_to_cpu(udqp->q_core.d_id)) { |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1844 | udq_delblks = udqp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1845 | /* |
| 1846 | * If there are delayed allocation blocks, then we have to |
| 1847 | * unreserve those from the old dquot, and add them to the |
| 1848 | * new dquot. |
| 1849 | */ |
| 1850 | if (delblks) { |
| 1851 | ASSERT(ip->i_udquot); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1852 | udq_unres = ip->i_udquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1853 | } |
| 1854 | } |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1855 | if (XFS_IS_GQUOTA_ON(ip->i_mount) && gdqp && |
| 1856 | ip->i_d.di_gid != be32_to_cpu(gdqp->q_core.d_id)) { |
| 1857 | gdq_delblks = gdqp; |
| 1858 | if (delblks) { |
| 1859 | ASSERT(ip->i_gdquot); |
| 1860 | gdq_unres = ip->i_gdquot; |
| 1861 | } |
| 1862 | } |
Nathan Scott | 9a2a7de | 2006-03-31 13:04:49 +1000 | [diff] [blame] | 1863 | |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1864 | if (XFS_IS_PQUOTA_ON(ip->i_mount) && pdqp && |
| 1865 | xfs_get_projid(ip) != be32_to_cpu(pdqp->q_core.d_id)) { |
| 1866 | prjflags = XFS_QMOPT_ENOSPC; |
| 1867 | pdq_delblks = pdqp; |
| 1868 | if (delblks) { |
| 1869 | ASSERT(ip->i_pdquot); |
| 1870 | pdq_unres = ip->i_pdquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1871 | } |
| 1872 | } |
| 1873 | |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1874 | error = xfs_trans_reserve_quota_bydquots(tp, ip->i_mount, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1875 | udq_delblks, gdq_delblks, pdq_delblks, |
| 1876 | ip->i_d.di_nblocks, 1, |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1877 | flags | blkflags | prjflags); |
| 1878 | if (error) |
| 1879 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1880 | |
| 1881 | /* |
| 1882 | * Do the delayed blks reservations/unreservations now. Since, these |
| 1883 | * are done without the help of a transaction, if a reservation fails |
| 1884 | * its previous reservations won't be automatically undone by trans |
| 1885 | * code. So, we have to do it manually here. |
| 1886 | */ |
| 1887 | if (delblks) { |
| 1888 | /* |
| 1889 | * Do the reservations first. Unreservation can't fail. |
| 1890 | */ |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1891 | ASSERT(udq_delblks || gdq_delblks || pdq_delblks); |
| 1892 | ASSERT(udq_unres || gdq_unres || pdq_unres); |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1893 | error = xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1894 | udq_delblks, gdq_delblks, pdq_delblks, |
| 1895 | (xfs_qcnt_t)delblks, 0, |
Chandra Seetharaman | 113a568 | 2013-06-27 17:25:07 -0500 | [diff] [blame] | 1896 | flags | blkflags | prjflags); |
| 1897 | if (error) |
| 1898 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1899 | xfs_trans_reserve_quota_bydquots(NULL, ip->i_mount, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1900 | udq_unres, gdq_unres, pdq_unres, |
| 1901 | -((xfs_qcnt_t)delblks), 0, blkflags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1902 | } |
| 1903 | |
Eric Sandeen | d99831f | 2014-06-22 15:03:54 +1000 | [diff] [blame] | 1904 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1905 | } |
| 1906 | |
| 1907 | int |
| 1908 | xfs_qm_vop_rename_dqattach( |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1909 | struct xfs_inode **i_tab) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1910 | { |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1911 | struct xfs_mount *mp = i_tab[0]->i_mount; |
| 1912 | int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1913 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1914 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1915 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1916 | |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1917 | for (i = 0; (i < 4 && i_tab[i]); i++) { |
| 1918 | struct xfs_inode *ip = i_tab[i]; |
| 1919 | int error; |
| 1920 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1921 | /* |
| 1922 | * Watch out for duplicate entries in the table. |
| 1923 | */ |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1924 | if (i == 0 || ip != i_tab[i-1]) { |
| 1925 | if (XFS_NOT_DQATTACHED(mp, ip)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1926 | error = xfs_qm_dqattach(ip, 0); |
| 1927 | if (error) |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1928 | return error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1929 | } |
| 1930 | } |
| 1931 | } |
Jesper Juhl | 014c254 | 2006-01-15 02:37:08 +0100 | [diff] [blame] | 1932 | return 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1933 | } |
| 1934 | |
| 1935 | void |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1936 | xfs_qm_vop_create_dqattach( |
| 1937 | struct xfs_trans *tp, |
| 1938 | struct xfs_inode *ip, |
| 1939 | struct xfs_dquot *udqp, |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1940 | struct xfs_dquot *gdqp, |
| 1941 | struct xfs_dquot *pdqp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1942 | { |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1943 | struct xfs_mount *mp = tp->t_mountp; |
| 1944 | |
| 1945 | if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1946 | return; |
| 1947 | |
Christoph Hellwig | 579aa9c | 2008-04-22 17:34:00 +1000 | [diff] [blame] | 1948 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
Christoph Hellwig | 7d09525 | 2009-06-08 15:33:32 +0200 | [diff] [blame] | 1949 | ASSERT(XFS_IS_QUOTA_RUNNING(mp)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1950 | |
Jie Liu | 37eb970 | 2013-11-26 21:38:54 +0800 | [diff] [blame] | 1951 | if (udqp && XFS_IS_UQUOTA_ON(mp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1952 | ASSERT(ip->i_udquot == NULL); |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 1953 | ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id)); |
Christoph Hellwig | 78e5589 | 2011-12-06 21:58:22 +0000 | [diff] [blame] | 1954 | |
| 1955 | ip->i_udquot = xfs_qm_dqhold(udqp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1956 | xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1); |
| 1957 | } |
Jie Liu | 37eb970 | 2013-11-26 21:38:54 +0800 | [diff] [blame] | 1958 | if (gdqp && XFS_IS_GQUOTA_ON(mp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1959 | ASSERT(ip->i_gdquot == NULL); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1960 | ASSERT(ip->i_d.di_gid == be32_to_cpu(gdqp->q_core.d_id)); |
Christoph Hellwig | 78e5589 | 2011-12-06 21:58:22 +0000 | [diff] [blame] | 1961 | ip->i_gdquot = xfs_qm_dqhold(gdqp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1962 | xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1); |
| 1963 | } |
Jie Liu | 37eb970 | 2013-11-26 21:38:54 +0800 | [diff] [blame] | 1964 | if (pdqp && XFS_IS_PQUOTA_ON(mp)) { |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1965 | ASSERT(ip->i_pdquot == NULL); |
Chandra Seetharaman | 92f8ff7 | 2013-07-11 00:00:40 -0500 | [diff] [blame] | 1966 | ASSERT(xfs_get_projid(ip) == be32_to_cpu(pdqp->q_core.d_id)); |
| 1967 | |
| 1968 | ip->i_pdquot = xfs_qm_dqhold(pdqp); |
| 1969 | xfs_trans_mod_dquot(tp, pdqp, XFS_TRANS_DQ_ICOUNT, 1); |
| 1970 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | } |
| 1972 | |