Commit | Line | Data |
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1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
1da177e4 | 13 | * |
7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write the Free Software Foundation, | |
16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a844f451 | 19 | #include "xfs_fs.h" |
70a9883c | 20 | #include "xfs_shared.h" |
a4fbe6ab | 21 | #include "xfs_format.h" |
239880ef DC |
22 | #include "xfs_log_format.h" |
23 | #include "xfs_trans_resv.h" | |
1da177e4 | 24 | #include "xfs_mount.h" |
1da177e4 | 25 | #include "xfs_inode.h" |
239880ef | 26 | #include "xfs_trans.h" |
a844f451 NS |
27 | #include "xfs_trans_priv.h" |
28 | #include "xfs_inode_item.h" | |
898621d5 | 29 | #include "xfs_trace.h" |
1da177e4 | 30 | |
f0e28280 JL |
31 | #include <linux/iversion.h> |
32 | ||
1da177e4 | 33 | /* |
898621d5 CH |
34 | * Add a locked inode to the transaction. |
35 | * | |
36 | * The inode must be locked, and it cannot be associated with any transaction. | |
ddc3415a | 37 | * If lock_flags is non-zero the inode will be unlocked on transaction commit. |
1da177e4 LT |
38 | */ |
39 | void | |
40 | xfs_trans_ijoin( | |
898621d5 | 41 | struct xfs_trans *tp, |
ddc3415a CH |
42 | struct xfs_inode *ip, |
43 | uint lock_flags) | |
1da177e4 LT |
44 | { |
45 | xfs_inode_log_item_t *iip; | |
46 | ||
579aa9ca | 47 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
48 | if (ip->i_itemp == NULL) |
49 | xfs_inode_item_init(ip, ip->i_mount); | |
50 | iip = ip->i_itemp; | |
ddc3415a | 51 | |
898621d5 | 52 | ASSERT(iip->ili_lock_flags == 0); |
ddc3415a | 53 | iip->ili_lock_flags = lock_flags; |
1da177e4 LT |
54 | |
55 | /* | |
56 | * Get a log_item_desc to point at the new item. | |
57 | */ | |
e98c414f | 58 | xfs_trans_add_item(tp, &iip->ili_item); |
1da177e4 LT |
59 | } |
60 | ||
dcd79a14 DC |
61 | /* |
62 | * Transactional inode timestamp update. Requires the inode to be locked and | |
63 | * joined to the transaction supplied. Relies on the transaction subsystem to | |
64 | * track dirty state and update/writeback the inode accordingly. | |
65 | */ | |
66 | void | |
67 | xfs_trans_ichgtime( | |
68 | struct xfs_trans *tp, | |
69 | struct xfs_inode *ip, | |
70 | int flags) | |
71 | { | |
72 | struct inode *inode = VFS_I(ip); | |
e076b0f3 | 73 | struct timespec tv; |
dcd79a14 DC |
74 | |
75 | ASSERT(tp); | |
76 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); | |
dcd79a14 | 77 | |
c2050a45 | 78 | tv = current_time(inode); |
dcd79a14 | 79 | |
3987848c | 80 | if (flags & XFS_ICHGTIME_MOD) |
dcd79a14 | 81 | inode->i_mtime = tv; |
3987848c | 82 | if (flags & XFS_ICHGTIME_CHG) |
dcd79a14 | 83 | inode->i_ctime = tv; |
dcd79a14 DC |
84 | } |
85 | ||
1da177e4 LT |
86 | /* |
87 | * This is called to mark the fields indicated in fieldmask as needing | |
88 | * to be logged when the transaction is committed. The inode must | |
89 | * already be associated with the given transaction. | |
90 | * | |
91 | * The values for fieldmask are defined in xfs_inode_item.h. We always | |
92 | * log all of the core inode if any of it has changed, and we always log | |
93 | * all of the inline data/extents/b-tree root if any of them has changed. | |
94 | */ | |
95 | void | |
96 | xfs_trans_log_inode( | |
97 | xfs_trans_t *tp, | |
98 | xfs_inode_t *ip, | |
99 | uint flags) | |
100 | { | |
c3b1b131 CH |
101 | struct inode *inode = VFS_I(ip); |
102 | ||
1da177e4 | 103 | ASSERT(ip->i_itemp != NULL); |
579aa9ca | 104 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 105 | |
c3b1b131 CH |
106 | /* |
107 | * Don't bother with i_lock for the I_DIRTY_TIME check here, as races | |
108 | * don't matter - we either will need an extra transaction in 24 hours | |
109 | * to log the timestamps, or will clear already cleared fields in the | |
110 | * worst case. | |
111 | */ | |
112 | if (inode->i_state & (I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED)) { | |
113 | spin_lock(&inode->i_lock); | |
114 | inode->i_state &= ~(I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED); | |
115 | spin_unlock(&inode->i_lock); | |
116 | } | |
117 | ||
fc0561ce DC |
118 | /* |
119 | * Record the specific change for fdatasync optimisation. This | |
120 | * allows fdatasync to skip log forces for inodes that are only | |
121 | * timestamp dirty. We do this before the change count so that | |
122 | * the core being logged in this case does not impact on fdatasync | |
123 | * behaviour. | |
124 | */ | |
125 | ip->i_itemp->ili_fsync_fields |= flags; | |
126 | ||
dc037ad7 DC |
127 | /* |
128 | * First time we log the inode in a transaction, bump the inode change | |
d17260fd JL |
129 | * counter if it is configured for this to occur. While we have the |
130 | * inode locked exclusively for metadata modification, we can usually | |
131 | * avoid setting XFS_ILOG_CORE if no one has queried the value since | |
132 | * the last time it was incremented. If we have XFS_ILOG_CORE already | |
133 | * set however, then go ahead and bump the i_version counter | |
134 | * unconditionally. | |
dc037ad7 DC |
135 | */ |
136 | if (!(ip->i_itemp->ili_item.li_desc->lid_flags & XFS_LID_DIRTY) && | |
137 | IS_I_VERSION(VFS_I(ip))) { | |
d17260fd JL |
138 | if (inode_maybe_inc_iversion(VFS_I(ip), flags & XFS_ILOG_CORE)) |
139 | flags |= XFS_ILOG_CORE; | |
dc037ad7 DC |
140 | } |
141 | ||
1da177e4 | 142 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 143 | ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
144 | |
145 | /* | |
146 | * Always OR in the bits from the ili_last_fields field. | |
147 | * This is to coordinate with the xfs_iflush() and xfs_iflush_done() | |
f5d8d5c4 | 148 | * routines in the eventual clearing of the ili_fields bits. |
1da177e4 | 149 | * See the big comment in xfs_iflush() for an explanation of |
c41564b5 | 150 | * this coordination mechanism. |
1da177e4 LT |
151 | */ |
152 | flags |= ip->i_itemp->ili_last_fields; | |
f5d8d5c4 | 153 | ip->i_itemp->ili_fields |= flags; |
1da177e4 | 154 | } |
411350df CH |
155 | |
156 | int | |
157 | xfs_trans_roll_inode( | |
158 | struct xfs_trans **tpp, | |
159 | struct xfs_inode *ip) | |
160 | { | |
161 | int error; | |
162 | ||
163 | xfs_trans_log_inode(*tpp, ip, XFS_ILOG_CORE); | |
164 | error = xfs_trans_roll(tpp); | |
165 | if (!error) | |
166 | xfs_trans_ijoin(*tpp, ip, 0); | |
167 | return error; | |
168 | } |