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) 2000-2003 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 | 6ca1c90 | 2013-08-12 20:49:26 +1000 | [diff] [blame] | 20 | #include "xfs_format.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 21 | #include "xfs_log_format.h" |
| 22 | #include "xfs_trans_resv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include "xfs_sb.h" |
| 24 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | #include "xfs_mount.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include "xfs_inode.h" |
Dave Chinner | a4fbe6a | 2013-10-23 10:51:50 +1100 | [diff] [blame] | 27 | #include "xfs_quota.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include "xfs_error.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 29 | #include "xfs_trans.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include "xfs_buf_item.h" |
| 31 | #include "xfs_trans_priv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include "xfs_qm.h" |
Dave Chinner | 239880e | 2013-10-23 10:50:10 +1100 | [diff] [blame] | 33 | #include "xfs_log.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 35 | static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip) |
| 36 | { |
| 37 | return container_of(lip, struct xfs_dq_logitem, qli_item); |
| 38 | } |
| 39 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | /* |
| 41 | * returns the number of iovecs needed to log the given dquot item. |
| 42 | */ |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 43 | STATIC void |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | xfs_qm_dquot_logitem_size( |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 45 | struct xfs_log_item *lip, |
| 46 | int *nvecs, |
| 47 | int *nbytes) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | { |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 49 | *nvecs += 2; |
| 50 | *nbytes += sizeof(struct xfs_dq_logformat) + |
| 51 | sizeof(struct xfs_disk_dquot); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | } |
| 53 | |
| 54 | /* |
| 55 | * fills in the vector of log iovecs for the given dquot log item. |
| 56 | */ |
| 57 | STATIC void |
| 58 | xfs_qm_dquot_logitem_format( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 59 | struct xfs_log_item *lip, |
Christoph Hellwig | 1234351 | 2013-12-13 11:00:43 +1100 | [diff] [blame^] | 60 | struct xfs_log_iovec *vecp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 62 | struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | |
Christoph Hellwig | 1234351 | 2013-12-13 11:00:43 +1100 | [diff] [blame^] | 64 | xlog_copy_iovec(&vecp, XLOG_REG_TYPE_QFORMAT, |
| 65 | &qlip->qli_format, |
| 66 | sizeof(struct xfs_dq_logformat)); |
| 67 | xlog_copy_iovec(&vecp, XLOG_REG_TYPE_DQUOT, |
| 68 | &qlip->qli_dquot->q_core, |
| 69 | sizeof(struct xfs_disk_dquot)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 71 | qlip->qli_format.qlf_size = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | } |
| 73 | |
| 74 | /* |
| 75 | * Increment the pin count of the given dquot. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | */ |
| 77 | STATIC void |
| 78 | xfs_qm_dquot_logitem_pin( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 79 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 80 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 81 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
Peter Leckie | d1de802 | 2008-10-30 17:05:18 +1100 | [diff] [blame] | 84 | atomic_inc(&dqp->q_pincount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | /* |
| 88 | * Decrement the pin count of the given dquot, and wake up |
| 89 | * anyone in xfs_dqwait_unpin() if the count goes to 0. The |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 90 | * dquot must have been previously pinned with a call to |
| 91 | * xfs_qm_dquot_logitem_pin(). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | STATIC void |
| 94 | xfs_qm_dquot_logitem_unpin( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 95 | struct xfs_log_item *lip, |
Christoph Hellwig | 9412e31 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 96 | int remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 98 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 100 | ASSERT(atomic_read(&dqp->q_pincount) > 0); |
| 101 | if (atomic_dec_and_test(&dqp->q_pincount)) |
| 102 | wake_up(&dqp->q_pinwait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | } |
| 104 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 105 | STATIC xfs_lsn_t |
| 106 | xfs_qm_dquot_logitem_committed( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 107 | struct xfs_log_item *lip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | xfs_lsn_t lsn) |
| 109 | { |
| 110 | /* |
| 111 | * We always re-log the entire dquot when it becomes dirty, |
| 112 | * so, the latest copy _is_ the only one that matters. |
| 113 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 114 | return lsn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 115 | } |
| 116 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 117 | /* |
| 118 | * This is called to wait for the given dquot to be unpinned. |
| 119 | * Most of these pin/unpin routines are plagiarized from inode code. |
| 120 | */ |
| 121 | void |
| 122 | xfs_qm_dqunpin_wait( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 123 | struct xfs_dquot *dqp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 125 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 126 | if (atomic_read(&dqp->q_pincount) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | |
| 129 | /* |
| 130 | * Give the log a push so we don't wait here too long. |
| 131 | */ |
Christoph Hellwig | a14a348 | 2010-01-19 09:56:46 +0000 | [diff] [blame] | 132 | xfs_log_force(dqp->q_mount, 0); |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 133 | wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | } |
| 135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | STATIC uint |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 137 | xfs_qm_dquot_logitem_push( |
| 138 | struct xfs_log_item *lip, |
Dave Chinner | a30b036 | 2013-09-02 20:49:36 +1000 | [diff] [blame] | 139 | struct list_head *buffer_list) __releases(&lip->li_ailp->xa_lock) |
| 140 | __acquires(&lip->li_ailp->xa_lock) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 142 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 143 | struct xfs_buf *bp = NULL; |
| 144 | uint rval = XFS_ITEM_SUCCESS; |
| 145 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 147 | if (atomic_read(&dqp->q_pincount) > 0) |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 148 | return XFS_ITEM_PINNED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
Christoph Hellwig | 800b484 | 2011-12-06 21:58:14 +0000 | [diff] [blame] | 150 | if (!xfs_dqlock_nowait(dqp)) |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 151 | return XFS_ITEM_LOCKED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 153 | /* |
| 154 | * Re-check the pincount now that we stabilized the value by |
| 155 | * taking the quota lock. |
| 156 | */ |
| 157 | if (atomic_read(&dqp->q_pincount) > 0) { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 158 | rval = XFS_ITEM_PINNED; |
| 159 | goto out_unlock; |
Christoph Hellwig | fe7257f | 2012-04-23 15:58:37 +1000 | [diff] [blame] | 160 | } |
| 161 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 162 | /* |
| 163 | * Someone else is already flushing the dquot. Nothing we can do |
| 164 | * here but wait for the flush to finish and remove the item from |
| 165 | * the AIL. |
| 166 | */ |
David Chinner | e1f49cf | 2008-08-13 16:41:43 +1000 | [diff] [blame] | 167 | if (!xfs_dqflock_nowait(dqp)) { |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 168 | rval = XFS_ITEM_FLUSHING; |
| 169 | goto out_unlock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 170 | } |
| 171 | |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 172 | spin_unlock(&lip->li_ailp->xa_lock); |
| 173 | |
| 174 | error = xfs_qm_dqflush(dqp, &bp); |
| 175 | if (error) { |
| 176 | xfs_warn(dqp->q_mount, "%s: push error %d on dqp %p", |
| 177 | __func__, error, dqp); |
| 178 | } else { |
| 179 | if (!xfs_buf_delwri_queue(bp, buffer_list)) |
| 180 | rval = XFS_ITEM_FLUSHING; |
| 181 | xfs_buf_relse(bp); |
| 182 | } |
| 183 | |
| 184 | spin_lock(&lip->li_ailp->xa_lock); |
| 185 | out_unlock: |
| 186 | xfs_dqunlock(dqp); |
| 187 | return rval; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | } |
| 189 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 190 | /* |
| 191 | * Unlock the dquot associated with the log item. |
| 192 | * Clear the fields of the dquot and dquot log item that |
| 193 | * are specific to the current transaction. If the |
| 194 | * hold flags is set, do not unlock the dquot. |
| 195 | */ |
| 196 | STATIC void |
| 197 | xfs_qm_dquot_logitem_unlock( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 198 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 200 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 202 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
| 203 | |
| 204 | /* |
| 205 | * Clear the transaction pointer in the dquot |
| 206 | */ |
| 207 | dqp->q_transp = NULL; |
| 208 | |
| 209 | /* |
| 210 | * dquots are never 'held' from getting unlocked at the end of |
| 211 | * a transaction. Their locking and unlocking is hidden inside the |
| 212 | * transaction layer, within trans_commit. Hence, no LI_HOLD flag |
| 213 | * for the logitem. |
| 214 | */ |
| 215 | xfs_dqunlock(dqp); |
| 216 | } |
| 217 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 218 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | * this needs to stamp an lsn into the dquot, I think. |
| 220 | * rpc's that look at user dquot's would then have to |
| 221 | * push on the dependency recorded in the dquot |
| 222 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | STATIC void |
| 224 | xfs_qm_dquot_logitem_committing( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 225 | struct xfs_log_item *lip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | xfs_lsn_t lsn) |
| 227 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 228 | } |
| 229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | /* |
| 231 | * This is the ops vector for dquots |
| 232 | */ |
Christoph Hellwig | 272e42b | 2011-10-28 09:54:24 +0000 | [diff] [blame] | 233 | static const struct xfs_item_ops xfs_dquot_item_ops = { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 234 | .iop_size = xfs_qm_dquot_logitem_size, |
| 235 | .iop_format = xfs_qm_dquot_logitem_format, |
| 236 | .iop_pin = xfs_qm_dquot_logitem_pin, |
| 237 | .iop_unpin = xfs_qm_dquot_logitem_unpin, |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 238 | .iop_unlock = xfs_qm_dquot_logitem_unlock, |
| 239 | .iop_committed = xfs_qm_dquot_logitem_committed, |
| 240 | .iop_push = xfs_qm_dquot_logitem_push, |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 241 | .iop_committing = xfs_qm_dquot_logitem_committing |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | }; |
| 243 | |
| 244 | /* |
| 245 | * Initialize the dquot log item for a newly allocated dquot. |
| 246 | * The dquot isn't locked at this point, but it isn't on any of the lists |
| 247 | * either, so we don't care. |
| 248 | */ |
| 249 | void |
| 250 | xfs_qm_dquot_logitem_init( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 251 | struct xfs_dquot *dqp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 253 | struct xfs_dq_logitem *lp = &dqp->q_logitem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Dave Chinner | 43f5efc | 2010-03-23 10:10:00 +1100 | [diff] [blame] | 255 | xfs_log_item_init(dqp->q_mount, &lp->qli_item, XFS_LI_DQUOT, |
| 256 | &xfs_dquot_item_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | lp->qli_dquot = dqp; |
| 258 | lp->qli_format.qlf_type = XFS_LI_DQUOT; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 259 | lp->qli_format.qlf_id = be32_to_cpu(dqp->q_core.d_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | lp->qli_format.qlf_blkno = dqp->q_blkno; |
| 261 | lp->qli_format.qlf_len = 1; |
| 262 | /* |
| 263 | * This is just the offset of this dquot within its buffer |
| 264 | * (which is currently 1 FSB and probably won't change). |
| 265 | * Hence 32 bits for this offset should be just fine. |
| 266 | * Alternatively, we can store (bufoffset / sizeof(xfs_dqblk_t)) |
| 267 | * here, and recompute it at recovery time. |
| 268 | */ |
| 269 | lp->qli_format.qlf_boffset = (__uint32_t)dqp->q_bufoffset; |
| 270 | } |
| 271 | |
| 272 | /*------------------ QUOTAOFF LOG ITEMS -------------------*/ |
| 273 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 274 | static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip) |
| 275 | { |
| 276 | return container_of(lip, struct xfs_qoff_logitem, qql_item); |
| 277 | } |
| 278 | |
| 279 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 280 | /* |
| 281 | * This returns the number of iovecs needed to log the given quotaoff item. |
| 282 | * We only need 1 iovec for an quotaoff item. It just logs the |
| 283 | * quotaoff_log_format structure. |
| 284 | */ |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 285 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 286 | xfs_qm_qoff_logitem_size( |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 287 | struct xfs_log_item *lip, |
| 288 | int *nvecs, |
| 289 | int *nbytes) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | { |
Dave Chinner | 166d136 | 2013-08-12 20:50:04 +1000 | [diff] [blame] | 291 | *nvecs += 1; |
| 292 | *nbytes += sizeof(struct xfs_qoff_logitem); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | } |
| 294 | |
| 295 | /* |
| 296 | * This is called to fill in the vector of log iovecs for the |
| 297 | * given quotaoff log item. We use only 1 iovec, and we point that |
| 298 | * at the quotaoff_log_format structure embedded in the quotaoff item. |
| 299 | * It is at this point that we assert that all of the extent |
| 300 | * slots in the quotaoff item have been filled. |
| 301 | */ |
| 302 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 303 | xfs_qm_qoff_logitem_format( |
| 304 | struct xfs_log_item *lip, |
Christoph Hellwig | 1234351 | 2013-12-13 11:00:43 +1100 | [diff] [blame^] | 305 | struct xfs_log_iovec *vecp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 306 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 307 | struct xfs_qoff_logitem *qflip = QOFF_ITEM(lip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 309 | ASSERT(qflip->qql_format.qf_type == XFS_LI_QUOTAOFF); |
| 310 | |
Christoph Hellwig | 1234351 | 2013-12-13 11:00:43 +1100 | [diff] [blame^] | 311 | xlog_copy_iovec(&vecp, XLOG_REG_TYPE_QUOTAOFF, |
| 312 | &qflip->qql_format, |
| 313 | sizeof(struct xfs_qoff_logitem)); |
| 314 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 315 | qflip->qql_format.qf_size = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | } |
| 317 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 318 | /* |
| 319 | * Pinning has no meaning for an quotaoff item, so just return. |
| 320 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 322 | xfs_qm_qoff_logitem_pin( |
| 323 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | } |
| 326 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 327 | /* |
| 328 | * Since pinning has no meaning for an quotaoff item, unpinning does |
| 329 | * not either. |
| 330 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 331 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 332 | xfs_qm_qoff_logitem_unpin( |
| 333 | struct xfs_log_item *lip, |
| 334 | int remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 336 | } |
| 337 | |
| 338 | /* |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 339 | * There isn't much you can do to push a quotaoff item. It is simply |
| 340 | * stuck waiting for the log to be flushed to disk. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | STATIC uint |
Christoph Hellwig | 43ff212 | 2012-04-23 15:58:39 +1000 | [diff] [blame] | 343 | xfs_qm_qoff_logitem_push( |
| 344 | struct xfs_log_item *lip, |
| 345 | struct list_head *buffer_list) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | { |
| 347 | return XFS_ITEM_LOCKED; |
| 348 | } |
| 349 | |
| 350 | /* |
| 351 | * Quotaoff items have no locking or pushing, so return failure |
| 352 | * so that the caller doesn't bother with us. |
| 353 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 355 | xfs_qm_qoff_logitem_unlock( |
| 356 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | /* |
| 361 | * The quotaoff-start-item is logged only once and cannot be moved in the log, |
| 362 | * so simply return the lsn at which it's been logged. |
| 363 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | STATIC xfs_lsn_t |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 365 | xfs_qm_qoff_logitem_committed( |
| 366 | struct xfs_log_item *lip, |
| 367 | xfs_lsn_t lsn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 368 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 369 | return lsn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | } |
| 371 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | STATIC xfs_lsn_t |
| 373 | xfs_qm_qoffend_logitem_committed( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 374 | struct xfs_log_item *lip, |
| 375 | xfs_lsn_t lsn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 377 | struct xfs_qoff_logitem *qfe = QOFF_ITEM(lip); |
| 378 | struct xfs_qoff_logitem *qfs = qfe->qql_start_lip; |
| 379 | struct xfs_ail *ailp = qfs->qql_item.li_ailp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | /* |
| 382 | * Delete the qoff-start logitem from the AIL. |
David Chinner | 783a2f6 | 2008-10-30 17:39:58 +1100 | [diff] [blame] | 383 | * xfs_trans_ail_delete() drops the AIL lock. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 385 | spin_lock(&ailp->xa_lock); |
Dave Chinner | 04913fd | 2012-04-23 15:58:41 +1000 | [diff] [blame] | 386 | xfs_trans_ail_delete(ailp, &qfs->qql_item, SHUTDOWN_LOG_IO_ERROR); |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 387 | |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 388 | kmem_free(qfs); |
| 389 | kmem_free(qfe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | return (xfs_lsn_t)-1; |
| 391 | } |
| 392 | |
| 393 | /* |
| 394 | * XXX rcc - don't know quite what to do with this. I think we can |
| 395 | * just ignore it. The only time that isn't the case is if we allow |
| 396 | * the client to somehow see that quotas have been turned off in which |
| 397 | * we can't allow that to get back until the quotaoff hits the disk. |
| 398 | * So how would that happen? Also, do we need different routines for |
| 399 | * quotaoff start and quotaoff end? I suspect the answer is yes but |
| 400 | * to be sure, I need to look at the recovery code and see how quota off |
| 401 | * recovery is handled (do we roll forward or back or do something else). |
| 402 | * If we roll forwards or backwards, then we need two separate routines, |
| 403 | * one that does nothing and one that stamps in the lsn that matters |
| 404 | * (truly makes the quotaoff irrevocable). If we do something else, |
| 405 | * then maybe we don't need two. |
| 406 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 408 | xfs_qm_qoff_logitem_committing( |
| 409 | struct xfs_log_item *lip, |
| 410 | xfs_lsn_t commit_lsn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 412 | } |
| 413 | |
Christoph Hellwig | 272e42b | 2011-10-28 09:54:24 +0000 | [diff] [blame] | 414 | static const struct xfs_item_ops xfs_qm_qoffend_logitem_ops = { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 415 | .iop_size = xfs_qm_qoff_logitem_size, |
| 416 | .iop_format = xfs_qm_qoff_logitem_format, |
| 417 | .iop_pin = xfs_qm_qoff_logitem_pin, |
| 418 | .iop_unpin = xfs_qm_qoff_logitem_unpin, |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 419 | .iop_unlock = xfs_qm_qoff_logitem_unlock, |
| 420 | .iop_committed = xfs_qm_qoffend_logitem_committed, |
| 421 | .iop_push = xfs_qm_qoff_logitem_push, |
| 422 | .iop_committing = xfs_qm_qoff_logitem_committing |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 423 | }; |
| 424 | |
| 425 | /* |
| 426 | * This is the ops vector shared by all quotaoff-start log items. |
| 427 | */ |
Christoph Hellwig | 272e42b | 2011-10-28 09:54:24 +0000 | [diff] [blame] | 428 | static const struct xfs_item_ops xfs_qm_qoff_logitem_ops = { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 429 | .iop_size = xfs_qm_qoff_logitem_size, |
| 430 | .iop_format = xfs_qm_qoff_logitem_format, |
| 431 | .iop_pin = xfs_qm_qoff_logitem_pin, |
| 432 | .iop_unpin = xfs_qm_qoff_logitem_unpin, |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 433 | .iop_unlock = xfs_qm_qoff_logitem_unlock, |
| 434 | .iop_committed = xfs_qm_qoff_logitem_committed, |
| 435 | .iop_push = xfs_qm_qoff_logitem_push, |
| 436 | .iop_committing = xfs_qm_qoff_logitem_committing |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | }; |
| 438 | |
| 439 | /* |
| 440 | * Allocate and initialize an quotaoff item of the correct quota type(s). |
| 441 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 442 | struct xfs_qoff_logitem * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 443 | xfs_qm_qoff_logitem_init( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 444 | struct xfs_mount *mp, |
| 445 | struct xfs_qoff_logitem *start, |
| 446 | uint flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 447 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 448 | struct xfs_qoff_logitem *qf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 450 | qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 451 | |
Dave Chinner | 43f5efc | 2010-03-23 10:10:00 +1100 | [diff] [blame] | 452 | xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ? |
| 453 | &xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 454 | qf->qql_item.li_mountp = mp; |
| 455 | qf->qql_format.qf_type = XFS_LI_QUOTAOFF; |
| 456 | qf->qql_format.qf_flags = flags; |
| 457 | qf->qql_start_lip = start; |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 458 | return qf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 459 | } |