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" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 20 | #include "xfs_bit.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | #include "xfs_log.h" |
Nathan Scott | a844f45 | 2005-11-02 14:38:42 +1100 | [diff] [blame] | 22 | #include "xfs_inum.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include "xfs_trans.h" |
| 24 | #include "xfs_sb.h" |
| 25 | #include "xfs_ag.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | #include "xfs_alloc.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include "xfs_quota.h" |
| 28 | #include "xfs_mount.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | #include "xfs_bmap_btree.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include "xfs_inode.h" |
| 31 | #include "xfs_bmap.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #include "xfs_rtalloc.h" |
| 33 | #include "xfs_error.h" |
| 34 | #include "xfs_itable.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include "xfs_attr.h" |
| 36 | #include "xfs_buf_item.h" |
| 37 | #include "xfs_trans_priv.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #include "xfs_qm.h" |
| 39 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 40 | static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip) |
| 41 | { |
| 42 | return container_of(lip, struct xfs_dq_logitem, qli_item); |
| 43 | } |
| 44 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | /* |
| 46 | * returns the number of iovecs needed to log the given dquot item. |
| 47 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | STATIC uint |
| 49 | xfs_qm_dquot_logitem_size( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 50 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | { |
| 52 | /* |
| 53 | * we need only two iovecs, one for the format, one for the real thing |
| 54 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 55 | return 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | /* |
| 59 | * fills in the vector of log iovecs for the given dquot log item. |
| 60 | */ |
| 61 | STATIC void |
| 62 | xfs_qm_dquot_logitem_format( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 63 | struct xfs_log_item *lip, |
| 64 | struct xfs_log_iovec *logvec) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 66 | struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
Christoph Hellwig | 4e0d5f9 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 68 | logvec->i_addr = &qlip->qli_format; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | logvec->i_len = sizeof(xfs_dq_logformat_t); |
Christoph Hellwig | 4139b3b | 2010-01-19 09:56:45 +0000 | [diff] [blame] | 70 | logvec->i_type = XLOG_REG_TYPE_QFORMAT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | logvec++; |
Christoph Hellwig | 4e0d5f9 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 72 | logvec->i_addr = &qlip->qli_dquot->q_core; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | logvec->i_len = sizeof(xfs_disk_dquot_t); |
Christoph Hellwig | 4139b3b | 2010-01-19 09:56:45 +0000 | [diff] [blame] | 74 | logvec->i_type = XLOG_REG_TYPE_DQUOT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 76 | ASSERT(2 == lip->li_desc->lid_size); |
| 77 | qlip->qli_format.qlf_size = 2; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | |
| 79 | } |
| 80 | |
| 81 | /* |
| 82 | * Increment the pin count of the given dquot. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | */ |
| 84 | STATIC void |
| 85 | xfs_qm_dquot_logitem_pin( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 86 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 88 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 89 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
Peter Leckie | d1de802 | 2008-10-30 17:05:18 +1100 | [diff] [blame] | 91 | atomic_inc(&dqp->q_pincount); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | /* |
| 95 | * Decrement the pin count of the given dquot, and wake up |
| 96 | * anyone in xfs_dqwait_unpin() if the count goes to 0. The |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 97 | * dquot must have been previously pinned with a call to |
| 98 | * xfs_qm_dquot_logitem_pin(). |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 100 | STATIC void |
| 101 | xfs_qm_dquot_logitem_unpin( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 102 | struct xfs_log_item *lip, |
Christoph Hellwig | 9412e31 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 103 | int remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 105 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 107 | ASSERT(atomic_read(&dqp->q_pincount) > 0); |
| 108 | if (atomic_dec_and_test(&dqp->q_pincount)) |
| 109 | wake_up(&dqp->q_pinwait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | } |
| 111 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | /* |
| 113 | * Given the logitem, this writes the corresponding dquot entry to disk |
| 114 | * asynchronously. This is called with the dquot entry securely locked; |
| 115 | * we simply get xfs_qm_dqflush() to do the work, and unlock the dquot |
| 116 | * at the end. |
| 117 | */ |
| 118 | STATIC void |
| 119 | xfs_qm_dquot_logitem_push( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 120 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 122 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
| 123 | int error; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | |
| 125 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
David Chinner | e1f49cf | 2008-08-13 16:41:43 +1000 | [diff] [blame] | 126 | ASSERT(!completion_done(&dqp->q_flush)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | |
| 128 | /* |
| 129 | * Since we were able to lock the dquot's flush lock and |
| 130 | * we found it on the AIL, the dquot must be dirty. This |
| 131 | * is because the dquot is removed from the AIL while still |
| 132 | * holding the flush lock in xfs_dqflush_done(). Thus, if |
| 133 | * we found it in the AIL and were able to obtain the flush |
| 134 | * lock without sleeping, then there must not have been |
| 135 | * anyone in the process of flushing the dquot. |
| 136 | */ |
Dave Chinner | 20026d9 | 2010-02-04 09:48:58 +1100 | [diff] [blame] | 137 | error = xfs_qm_dqflush(dqp, 0); |
David Chinner | 3c56836 | 2008-04-10 12:20:24 +1000 | [diff] [blame] | 138 | if (error) |
Dave Chinner | 5348778 | 2011-03-07 10:05:35 +1100 | [diff] [blame] | 139 | xfs_warn(dqp->q_mount, "%s: push error %d on dqp %p", |
| 140 | __func__, error, dqp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | xfs_dqunlock(dqp); |
| 142 | } |
| 143 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | STATIC xfs_lsn_t |
| 145 | xfs_qm_dquot_logitem_committed( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 146 | struct xfs_log_item *lip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 147 | xfs_lsn_t lsn) |
| 148 | { |
| 149 | /* |
| 150 | * We always re-log the entire dquot when it becomes dirty, |
| 151 | * so, the latest copy _is_ the only one that matters. |
| 152 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 153 | return lsn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | } |
| 155 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | /* |
| 157 | * This is called to wait for the given dquot to be unpinned. |
| 158 | * Most of these pin/unpin routines are plagiarized from inode code. |
| 159 | */ |
| 160 | void |
| 161 | xfs_qm_dqunpin_wait( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 162 | struct xfs_dquot *dqp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 164 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 165 | if (atomic_read(&dqp->q_pincount) == 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | return; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | |
| 168 | /* |
| 169 | * Give the log a push so we don't wait here too long. |
| 170 | */ |
Christoph Hellwig | a14a348 | 2010-01-19 09:56:46 +0000 | [diff] [blame] | 171 | xfs_log_force(dqp->q_mount, 0); |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 172 | wait_event(dqp->q_pinwait, (atomic_read(&dqp->q_pincount) == 0)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | /* |
| 176 | * This is called when IOP_TRYLOCK returns XFS_ITEM_PUSHBUF to indicate that |
| 177 | * the dquot is locked by us, but the flush lock isn't. So, here we are |
| 178 | * going to see if the relevant dquot buffer is incore, waiting on DELWRI. |
| 179 | * If so, we want to push it out to help us take this item off the AIL as soon |
| 180 | * as possible. |
| 181 | * |
Donald Douwsma | 287f3da | 2007-10-11 17:36:05 +1000 | [diff] [blame] | 182 | * We must not be holding the AIL lock at this point. Calling incore() to |
| 183 | * search the buffer cache can be a time consuming thing, and AIL lock is a |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | * spinlock. |
| 185 | */ |
Christoph Hellwig | 17b3847 | 2011-10-11 15:14:09 +0000 | [diff] [blame] | 186 | STATIC bool |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | xfs_qm_dquot_logitem_pushbuf( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 188 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 190 | struct xfs_dq_logitem *qlip = DQUOT_ITEM(lip); |
| 191 | struct xfs_dquot *dqp = qlip->qli_dquot; |
| 192 | struct xfs_buf *bp; |
Christoph Hellwig | 17b3847 | 2011-10-11 15:14:09 +0000 | [diff] [blame] | 193 | bool ret = true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
| 196 | |
| 197 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | * If flushlock isn't locked anymore, chances are that the |
| 199 | * inode flush completed and the inode was taken off the AIL. |
| 200 | * So, just get out. |
| 201 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 202 | if (completion_done(&dqp->q_flush) || |
| 203 | !(lip->li_flags & XFS_LI_IN_AIL)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 204 | xfs_dqunlock(dqp); |
Christoph Hellwig | 17b3847 | 2011-10-11 15:14:09 +0000 | [diff] [blame] | 205 | return true; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | } |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 207 | |
| 208 | bp = xfs_incore(dqp->q_mount->m_ddev_targp, qlip->qli_format.qlf_blkno, |
| 209 | dqp->q_mount->m_quotainfo->qi_dqchunklen, XBF_TRYLOCK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 210 | xfs_dqunlock(dqp); |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 211 | if (!bp) |
Christoph Hellwig | 17b3847 | 2011-10-11 15:14:09 +0000 | [diff] [blame] | 212 | return true; |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 213 | if (XFS_BUF_ISDELAYWRITE(bp)) |
| 214 | xfs_buf_delwri_promote(bp); |
Christoph Hellwig | 17b3847 | 2011-10-11 15:14:09 +0000 | [diff] [blame] | 215 | if (xfs_buf_ispinned(bp)) |
| 216 | ret = false; |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 217 | xfs_buf_relse(bp); |
Christoph Hellwig | 17b3847 | 2011-10-11 15:14:09 +0000 | [diff] [blame] | 218 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 219 | } |
| 220 | |
| 221 | /* |
| 222 | * This is called to attempt to lock the dquot associated with this |
| 223 | * dquot log item. Don't sleep on the dquot lock or the flush lock. |
| 224 | * If the flush lock is already held, indicating that the dquot has |
| 225 | * been or is in the process of being flushed, then see if we can |
| 226 | * find the dquot's buffer in the buffer cache without sleeping. If |
| 227 | * we can and it is marked delayed write, then we want to send it out. |
| 228 | * We delay doing so until the push routine, though, to avoid sleeping |
| 229 | * in any device strategy routines. |
| 230 | */ |
| 231 | STATIC uint |
| 232 | xfs_qm_dquot_logitem_trylock( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 233 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 235 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Peter Leckie | bc3048e | 2008-10-30 17:05:04 +1100 | [diff] [blame] | 237 | if (atomic_read(&dqp->q_pincount) > 0) |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 238 | return XFS_ITEM_PINNED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 240 | if (!xfs_qm_dqlock_nowait(dqp)) |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 241 | return XFS_ITEM_LOCKED; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 242 | |
David Chinner | e1f49cf | 2008-08-13 16:41:43 +1000 | [diff] [blame] | 243 | if (!xfs_dqflock_nowait(dqp)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | /* |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 245 | * dquot has already been flushed to the backing buffer, |
| 246 | * leave it locked, pushbuf routine will unlock it. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | */ |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 248 | return XFS_ITEM_PUSHBUF; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | } |
| 250 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 251 | ASSERT(lip->li_flags & XFS_LI_IN_AIL); |
Dave Chinner | d808f61 | 2010-02-02 10:13:42 +1100 | [diff] [blame] | 252 | return XFS_ITEM_SUCCESS; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 253 | } |
| 254 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 255 | /* |
| 256 | * Unlock the dquot associated with the log item. |
| 257 | * Clear the fields of the dquot and dquot log item that |
| 258 | * are specific to the current transaction. If the |
| 259 | * hold flags is set, do not unlock the dquot. |
| 260 | */ |
| 261 | STATIC void |
| 262 | xfs_qm_dquot_logitem_unlock( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 263 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 265 | struct xfs_dquot *dqp = DQUOT_ITEM(lip)->qli_dquot; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 267 | ASSERT(XFS_DQ_IS_LOCKED(dqp)); |
| 268 | |
| 269 | /* |
| 270 | * Clear the transaction pointer in the dquot |
| 271 | */ |
| 272 | dqp->q_transp = NULL; |
| 273 | |
| 274 | /* |
| 275 | * dquots are never 'held' from getting unlocked at the end of |
| 276 | * a transaction. Their locking and unlocking is hidden inside the |
| 277 | * transaction layer, within trans_commit. Hence, no LI_HOLD flag |
| 278 | * for the logitem. |
| 279 | */ |
| 280 | xfs_dqunlock(dqp); |
| 281 | } |
| 282 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 283 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 284 | * this needs to stamp an lsn into the dquot, I think. |
| 285 | * rpc's that look at user dquot's would then have to |
| 286 | * push on the dependency recorded in the dquot |
| 287 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 288 | STATIC void |
| 289 | xfs_qm_dquot_logitem_committing( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 290 | struct xfs_log_item *lip, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | xfs_lsn_t lsn) |
| 292 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | } |
| 294 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | /* |
| 296 | * This is the ops vector for dquots |
| 297 | */ |
Christoph Hellwig | 272e42b | 2011-10-28 09:54:24 +0000 | [diff] [blame^] | 298 | static const struct xfs_item_ops xfs_dquot_item_ops = { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 299 | .iop_size = xfs_qm_dquot_logitem_size, |
| 300 | .iop_format = xfs_qm_dquot_logitem_format, |
| 301 | .iop_pin = xfs_qm_dquot_logitem_pin, |
| 302 | .iop_unpin = xfs_qm_dquot_logitem_unpin, |
| 303 | .iop_trylock = xfs_qm_dquot_logitem_trylock, |
| 304 | .iop_unlock = xfs_qm_dquot_logitem_unlock, |
| 305 | .iop_committed = xfs_qm_dquot_logitem_committed, |
| 306 | .iop_push = xfs_qm_dquot_logitem_push, |
| 307 | .iop_pushbuf = xfs_qm_dquot_logitem_pushbuf, |
| 308 | .iop_committing = xfs_qm_dquot_logitem_committing |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 309 | }; |
| 310 | |
| 311 | /* |
| 312 | * Initialize the dquot log item for a newly allocated dquot. |
| 313 | * The dquot isn't locked at this point, but it isn't on any of the lists |
| 314 | * either, so we don't care. |
| 315 | */ |
| 316 | void |
| 317 | xfs_qm_dquot_logitem_init( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 318 | struct xfs_dquot *dqp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 319 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 320 | struct xfs_dq_logitem *lp = &dqp->q_logitem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 321 | |
Dave Chinner | 43f5efc | 2010-03-23 10:10:00 +1100 | [diff] [blame] | 322 | xfs_log_item_init(dqp->q_mount, &lp->qli_item, XFS_LI_DQUOT, |
| 323 | &xfs_dquot_item_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 324 | lp->qli_dquot = dqp; |
| 325 | lp->qli_format.qlf_type = XFS_LI_DQUOT; |
Christoph Hellwig | 1149d96 | 2005-11-02 15:01:12 +1100 | [diff] [blame] | 326 | 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] | 327 | lp->qli_format.qlf_blkno = dqp->q_blkno; |
| 328 | lp->qli_format.qlf_len = 1; |
| 329 | /* |
| 330 | * This is just the offset of this dquot within its buffer |
| 331 | * (which is currently 1 FSB and probably won't change). |
| 332 | * Hence 32 bits for this offset should be just fine. |
| 333 | * Alternatively, we can store (bufoffset / sizeof(xfs_dqblk_t)) |
| 334 | * here, and recompute it at recovery time. |
| 335 | */ |
| 336 | lp->qli_format.qlf_boffset = (__uint32_t)dqp->q_bufoffset; |
| 337 | } |
| 338 | |
| 339 | /*------------------ QUOTAOFF LOG ITEMS -------------------*/ |
| 340 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 341 | static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip) |
| 342 | { |
| 343 | return container_of(lip, struct xfs_qoff_logitem, qql_item); |
| 344 | } |
| 345 | |
| 346 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | /* |
| 348 | * This returns the number of iovecs needed to log the given quotaoff item. |
| 349 | * We only need 1 iovec for an quotaoff item. It just logs the |
| 350 | * quotaoff_log_format structure. |
| 351 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | STATIC uint |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 353 | xfs_qm_qoff_logitem_size( |
| 354 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 356 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | /* |
| 360 | * This is called to fill in the vector of log iovecs for the |
| 361 | * given quotaoff log item. We use only 1 iovec, and we point that |
| 362 | * at the quotaoff_log_format structure embedded in the quotaoff item. |
| 363 | * It is at this point that we assert that all of the extent |
| 364 | * slots in the quotaoff item have been filled. |
| 365 | */ |
| 366 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 367 | xfs_qm_qoff_logitem_format( |
| 368 | struct xfs_log_item *lip, |
| 369 | struct xfs_log_iovec *log_vector) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 371 | struct xfs_qoff_logitem *qflip = QOFF_ITEM(lip); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 372 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 373 | ASSERT(qflip->qql_format.qf_type == XFS_LI_QUOTAOFF); |
| 374 | |
Christoph Hellwig | 4e0d5f9 | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 375 | log_vector->i_addr = &qflip->qql_format; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | log_vector->i_len = sizeof(xfs_qoff_logitem_t); |
Christoph Hellwig | 4139b3b | 2010-01-19 09:56:45 +0000 | [diff] [blame] | 377 | log_vector->i_type = XLOG_REG_TYPE_QUOTAOFF; |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 378 | qflip->qql_format.qf_size = 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 379 | } |
| 380 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | /* |
| 382 | * Pinning has no meaning for an quotaoff item, so just return. |
| 383 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 385 | xfs_qm_qoff_logitem_pin( |
| 386 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | } |
| 389 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 390 | /* |
| 391 | * Since pinning has no meaning for an quotaoff item, unpinning does |
| 392 | * not either. |
| 393 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 395 | xfs_qm_qoff_logitem_unpin( |
| 396 | struct xfs_log_item *lip, |
| 397 | int remove) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 398 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 399 | } |
| 400 | |
| 401 | /* |
| 402 | * Quotaoff items have no locking, so just return success. |
| 403 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 404 | STATIC uint |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 405 | xfs_qm_qoff_logitem_trylock( |
| 406 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 407 | { |
| 408 | return XFS_ITEM_LOCKED; |
| 409 | } |
| 410 | |
| 411 | /* |
| 412 | * Quotaoff items have no locking or pushing, so return failure |
| 413 | * so that the caller doesn't bother with us. |
| 414 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 415 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 416 | xfs_qm_qoff_logitem_unlock( |
| 417 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 418 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | } |
| 420 | |
| 421 | /* |
| 422 | * The quotaoff-start-item is logged only once and cannot be moved in the log, |
| 423 | * so simply return the lsn at which it's been logged. |
| 424 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 425 | STATIC xfs_lsn_t |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 426 | xfs_qm_qoff_logitem_committed( |
| 427 | struct xfs_log_item *lip, |
| 428 | xfs_lsn_t lsn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 429 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 430 | return lsn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 431 | } |
| 432 | |
| 433 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | * There isn't much you can do to push on an quotaoff item. It is simply |
| 435 | * stuck waiting for the log to be flushed to disk. |
| 436 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 437 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 438 | xfs_qm_qoff_logitem_push( |
| 439 | struct xfs_log_item *lip) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 440 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 444 | STATIC xfs_lsn_t |
| 445 | xfs_qm_qoffend_logitem_committed( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 446 | struct xfs_log_item *lip, |
| 447 | xfs_lsn_t lsn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 448 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 449 | struct xfs_qoff_logitem *qfe = QOFF_ITEM(lip); |
| 450 | struct xfs_qoff_logitem *qfs = qfe->qql_start_lip; |
| 451 | struct xfs_ail *ailp = qfs->qql_item.li_ailp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 453 | /* |
| 454 | * Delete the qoff-start logitem from the AIL. |
David Chinner | 783a2f6 | 2008-10-30 17:39:58 +1100 | [diff] [blame] | 455 | * xfs_trans_ail_delete() drops the AIL lock. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 456 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 457 | spin_lock(&ailp->xa_lock); |
David Chinner | 783a2f6 | 2008-10-30 17:39:58 +1100 | [diff] [blame] | 458 | xfs_trans_ail_delete(ailp, (xfs_log_item_t *)qfs); |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 459 | |
Denys Vlasenko | f0e2d93 | 2008-05-19 16:31:57 +1000 | [diff] [blame] | 460 | kmem_free(qfs); |
| 461 | kmem_free(qfe); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 462 | return (xfs_lsn_t)-1; |
| 463 | } |
| 464 | |
| 465 | /* |
| 466 | * XXX rcc - don't know quite what to do with this. I think we can |
| 467 | * just ignore it. The only time that isn't the case is if we allow |
| 468 | * the client to somehow see that quotas have been turned off in which |
| 469 | * we can't allow that to get back until the quotaoff hits the disk. |
| 470 | * So how would that happen? Also, do we need different routines for |
| 471 | * quotaoff start and quotaoff end? I suspect the answer is yes but |
| 472 | * to be sure, I need to look at the recovery code and see how quota off |
| 473 | * recovery is handled (do we roll forward or back or do something else). |
| 474 | * If we roll forwards or backwards, then we need two separate routines, |
| 475 | * one that does nothing and one that stamps in the lsn that matters |
| 476 | * (truly makes the quotaoff irrevocable). If we do something else, |
| 477 | * then maybe we don't need two. |
| 478 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 479 | STATIC void |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 480 | xfs_qm_qoff_logitem_committing( |
| 481 | struct xfs_log_item *lip, |
| 482 | xfs_lsn_t commit_lsn) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 483 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 484 | } |
| 485 | |
Christoph Hellwig | 272e42b | 2011-10-28 09:54:24 +0000 | [diff] [blame^] | 486 | static const struct xfs_item_ops xfs_qm_qoffend_logitem_ops = { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 487 | .iop_size = xfs_qm_qoff_logitem_size, |
| 488 | .iop_format = xfs_qm_qoff_logitem_format, |
| 489 | .iop_pin = xfs_qm_qoff_logitem_pin, |
| 490 | .iop_unpin = xfs_qm_qoff_logitem_unpin, |
| 491 | .iop_trylock = xfs_qm_qoff_logitem_trylock, |
| 492 | .iop_unlock = xfs_qm_qoff_logitem_unlock, |
| 493 | .iop_committed = xfs_qm_qoffend_logitem_committed, |
| 494 | .iop_push = xfs_qm_qoff_logitem_push, |
| 495 | .iop_committing = xfs_qm_qoff_logitem_committing |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 496 | }; |
| 497 | |
| 498 | /* |
| 499 | * This is the ops vector shared by all quotaoff-start log items. |
| 500 | */ |
Christoph Hellwig | 272e42b | 2011-10-28 09:54:24 +0000 | [diff] [blame^] | 501 | static const struct xfs_item_ops xfs_qm_qoff_logitem_ops = { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 502 | .iop_size = xfs_qm_qoff_logitem_size, |
| 503 | .iop_format = xfs_qm_qoff_logitem_format, |
| 504 | .iop_pin = xfs_qm_qoff_logitem_pin, |
| 505 | .iop_unpin = xfs_qm_qoff_logitem_unpin, |
| 506 | .iop_trylock = xfs_qm_qoff_logitem_trylock, |
| 507 | .iop_unlock = xfs_qm_qoff_logitem_unlock, |
| 508 | .iop_committed = xfs_qm_qoff_logitem_committed, |
| 509 | .iop_push = xfs_qm_qoff_logitem_push, |
| 510 | .iop_committing = xfs_qm_qoff_logitem_committing |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 511 | }; |
| 512 | |
| 513 | /* |
| 514 | * Allocate and initialize an quotaoff item of the correct quota type(s). |
| 515 | */ |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 516 | struct xfs_qoff_logitem * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 517 | xfs_qm_qoff_logitem_init( |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 518 | struct xfs_mount *mp, |
| 519 | struct xfs_qoff_logitem *start, |
| 520 | uint flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 521 | { |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 522 | struct xfs_qoff_logitem *qf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 523 | |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 524 | qf = kmem_zalloc(sizeof(struct xfs_qoff_logitem), KM_SLEEP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | |
Dave Chinner | 43f5efc | 2010-03-23 10:10:00 +1100 | [diff] [blame] | 526 | xfs_log_item_init(mp, &qf->qql_item, XFS_LI_QUOTAOFF, start ? |
| 527 | &xfs_qm_qoffend_logitem_ops : &xfs_qm_qoff_logitem_ops); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 528 | qf->qql_item.li_mountp = mp; |
| 529 | qf->qql_format.qf_type = XFS_LI_QUOTAOFF; |
| 530 | qf->qql_format.qf_flags = flags; |
| 531 | qf->qql_start_lip = start; |
Christoph Hellwig | 7bfa31d | 2010-06-23 18:11:15 +1000 | [diff] [blame] | 532 | return qf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 533 | } |