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0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 | 2 | /* |
7b718769 NS |
3 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. | |
1da177e4 | 5 | */ |
1da177e4 | 6 | #include "xfs.h" |
a844f451 | 7 | #include "xfs_fs.h" |
70a9883c | 8 | #include "xfs_shared.h" |
a4fbe6ab | 9 | #include "xfs_format.h" |
239880ef | 10 | #include "xfs_log_format.h" |
1da177e4 | 11 | #include "xfs_inode.h" |
239880ef | 12 | #include "xfs_trans.h" |
a844f451 NS |
13 | #include "xfs_trans_priv.h" |
14 | #include "xfs_inode_item.h" | |
1da177e4 | 15 | |
f0e28280 JL |
16 | #include <linux/iversion.h> |
17 | ||
1da177e4 | 18 | /* |
898621d5 CH |
19 | * Add a locked inode to the transaction. |
20 | * | |
21 | * The inode must be locked, and it cannot be associated with any transaction. | |
ddc3415a | 22 | * If lock_flags is non-zero the inode will be unlocked on transaction commit. |
1da177e4 LT |
23 | */ |
24 | void | |
25 | xfs_trans_ijoin( | |
898621d5 | 26 | struct xfs_trans *tp, |
ddc3415a CH |
27 | struct xfs_inode *ip, |
28 | uint lock_flags) | |
1da177e4 | 29 | { |
fd9cbe51 | 30 | struct xfs_inode_log_item *iip; |
1da177e4 | 31 | |
579aa9ca | 32 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
33 | if (ip->i_itemp == NULL) |
34 | xfs_inode_item_init(ip, ip->i_mount); | |
35 | iip = ip->i_itemp; | |
ddc3415a | 36 | |
898621d5 | 37 | ASSERT(iip->ili_lock_flags == 0); |
ddc3415a | 38 | iip->ili_lock_flags = lock_flags; |
1da177e4 LT |
39 | |
40 | /* | |
41 | * Get a log_item_desc to point at the new item. | |
42 | */ | |
e98c414f | 43 | xfs_trans_add_item(tp, &iip->ili_item); |
1da177e4 LT |
44 | } |
45 | ||
dcd79a14 DC |
46 | /* |
47 | * Transactional inode timestamp update. Requires the inode to be locked and | |
48 | * joined to the transaction supplied. Relies on the transaction subsystem to | |
49 | * track dirty state and update/writeback the inode accordingly. | |
50 | */ | |
51 | void | |
52 | xfs_trans_ichgtime( | |
53 | struct xfs_trans *tp, | |
54 | struct xfs_inode *ip, | |
55 | int flags) | |
56 | { | |
57 | struct inode *inode = VFS_I(ip); | |
8d2d878d | 58 | struct timespec64 tv; |
dcd79a14 DC |
59 | |
60 | ASSERT(tp); | |
61 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); | |
dcd79a14 | 62 | |
c2050a45 | 63 | tv = current_time(inode); |
dcd79a14 | 64 | |
3987848c | 65 | if (flags & XFS_ICHGTIME_MOD) |
dcd79a14 | 66 | inode->i_mtime = tv; |
3987848c | 67 | if (flags & XFS_ICHGTIME_CHG) |
dcd79a14 | 68 | inode->i_ctime = tv; |
8d2d878d CH |
69 | if (flags & XFS_ICHGTIME_CREATE) |
70 | ip->i_d.di_crtime = tv; | |
dcd79a14 DC |
71 | } |
72 | ||
1da177e4 LT |
73 | /* |
74 | * This is called to mark the fields indicated in fieldmask as needing | |
75 | * to be logged when the transaction is committed. The inode must | |
76 | * already be associated with the given transaction. | |
77 | * | |
78 | * The values for fieldmask are defined in xfs_inode_item.h. We always | |
79 | * log all of the core inode if any of it has changed, and we always log | |
80 | * all of the inline data/extents/b-tree root if any of them has changed. | |
81 | */ | |
82 | void | |
83 | xfs_trans_log_inode( | |
84 | xfs_trans_t *tp, | |
85 | xfs_inode_t *ip, | |
86 | uint flags) | |
87 | { | |
c3b1b131 CH |
88 | struct inode *inode = VFS_I(ip); |
89 | ||
1da177e4 | 90 | ASSERT(ip->i_itemp != NULL); |
579aa9ca | 91 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 92 | |
c3b1b131 CH |
93 | /* |
94 | * Don't bother with i_lock for the I_DIRTY_TIME check here, as races | |
95 | * don't matter - we either will need an extra transaction in 24 hours | |
96 | * to log the timestamps, or will clear already cleared fields in the | |
97 | * worst case. | |
98 | */ | |
99 | if (inode->i_state & (I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED)) { | |
100 | spin_lock(&inode->i_lock); | |
101 | inode->i_state &= ~(I_DIRTY_TIME | I_DIRTY_TIME_EXPIRED); | |
102 | spin_unlock(&inode->i_lock); | |
103 | } | |
104 | ||
fc0561ce DC |
105 | /* |
106 | * Record the specific change for fdatasync optimisation. This | |
107 | * allows fdatasync to skip log forces for inodes that are only | |
108 | * timestamp dirty. We do this before the change count so that | |
109 | * the core being logged in this case does not impact on fdatasync | |
110 | * behaviour. | |
111 | */ | |
112 | ip->i_itemp->ili_fsync_fields |= flags; | |
113 | ||
dc037ad7 DC |
114 | /* |
115 | * First time we log the inode in a transaction, bump the inode change | |
d17260fd JL |
116 | * counter if it is configured for this to occur. While we have the |
117 | * inode locked exclusively for metadata modification, we can usually | |
118 | * avoid setting XFS_ILOG_CORE if no one has queried the value since | |
119 | * the last time it was incremented. If we have XFS_ILOG_CORE already | |
120 | * set however, then go ahead and bump the i_version counter | |
121 | * unconditionally. | |
dc037ad7 | 122 | */ |
e6631f85 | 123 | if (!test_and_set_bit(XFS_LI_DIRTY, &ip->i_itemp->ili_item.li_flags) && |
dc037ad7 | 124 | IS_I_VERSION(VFS_I(ip))) { |
d17260fd JL |
125 | if (inode_maybe_inc_iversion(VFS_I(ip), flags & XFS_ILOG_CORE)) |
126 | flags |= XFS_ILOG_CORE; | |
dc037ad7 DC |
127 | } |
128 | ||
1da177e4 | 129 | tp->t_flags |= XFS_TRANS_DIRTY; |
1da177e4 LT |
130 | |
131 | /* | |
132 | * Always OR in the bits from the ili_last_fields field. | |
133 | * This is to coordinate with the xfs_iflush() and xfs_iflush_done() | |
f5d8d5c4 | 134 | * routines in the eventual clearing of the ili_fields bits. |
1da177e4 | 135 | * See the big comment in xfs_iflush() for an explanation of |
c41564b5 | 136 | * this coordination mechanism. |
1da177e4 LT |
137 | */ |
138 | flags |= ip->i_itemp->ili_last_fields; | |
f5d8d5c4 | 139 | ip->i_itemp->ili_fields |= flags; |
1da177e4 | 140 | } |
411350df CH |
141 | |
142 | int | |
143 | xfs_trans_roll_inode( | |
144 | struct xfs_trans **tpp, | |
145 | struct xfs_inode *ip) | |
146 | { | |
147 | int error; | |
148 | ||
149 | xfs_trans_log_inode(*tpp, ip, XFS_ILOG_CORE); | |
150 | error = xfs_trans_roll(tpp); | |
151 | if (!error) | |
152 | xfs_trans_ijoin(*tpp, ip, 0); | |
153 | return error; | |
154 | } |