1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
4 | * All Rights Reserved. |
5 | */ |
6 | #include "xfs.h" |
7 | #include "xfs_fs.h" |
8 | #include "xfs_shared.h" |
9 | #include "xfs_format.h" |
10 | #include "xfs_log_format.h" |
11 | #include "xfs_trans_resv.h" |
12 | #include "xfs_mount.h" |
13 | #include "xfs_inode.h" |
14 | #include "xfs_trans.h" |
15 | #include "xfs_trans_priv.h" |
16 | #include "xfs_inode_item.h" |
17 | |
18 | #include <linux/iversion.h> |
19 | |
20 | /* |
21 | * Add a locked inode to the transaction. |
22 | * |
23 | * The inode must be locked, and it cannot be associated with any transaction. |
24 | * If lock_flags is non-zero the inode will be unlocked on transaction commit. |
25 | */ |
26 | void |
27 | xfs_trans_ijoin( |
28 | struct xfs_trans *tp, |
29 | struct xfs_inode *ip, |
30 | uint lock_flags) |
31 | { |
32 | struct xfs_inode_log_item *iip; |
33 | |
34 | xfs_assert_ilocked(ip, XFS_ILOCK_EXCL); |
35 | if (ip->i_itemp == NULL) |
36 | xfs_inode_item_init(ip, ip->i_mount); |
37 | iip = ip->i_itemp; |
38 | |
39 | ASSERT(iip->ili_lock_flags == 0); |
40 | iip->ili_lock_flags = lock_flags; |
41 | ASSERT(!xfs_iflags_test(ip, XFS_ISTALE)); |
42 | |
43 | /* Reset the per-tx dirty context and add the item to the tx. */ |
44 | iip->ili_dirty_flags = 0; |
45 | xfs_trans_add_item(tp, &iip->ili_item); |
46 | } |
47 | |
48 | /* |
49 | * Transactional inode timestamp update. Requires the inode to be locked and |
50 | * joined to the transaction supplied. Relies on the transaction subsystem to |
51 | * track dirty state and update/writeback the inode accordingly. |
52 | */ |
53 | void |
54 | xfs_trans_ichgtime( |
55 | struct xfs_trans *tp, |
56 | struct xfs_inode *ip, |
57 | int flags) |
58 | { |
59 | struct inode *inode = VFS_I(ip); |
60 | struct timespec64 tv; |
61 | |
62 | ASSERT(tp); |
63 | xfs_assert_ilocked(ip, XFS_ILOCK_EXCL); |
64 | |
65 | tv = current_time(inode); |
66 | |
67 | if (flags & XFS_ICHGTIME_MOD) |
68 | inode_set_mtime_to_ts(inode, ts: tv); |
69 | if (flags & XFS_ICHGTIME_CHG) |
70 | inode_set_ctime_to_ts(inode, ts: tv); |
71 | if (flags & XFS_ICHGTIME_CREATE) |
72 | ip->i_crtime = tv; |
73 | } |
74 | |
75 | /* |
76 | * This is called to mark the fields indicated in fieldmask as needing to be |
77 | * logged when the transaction is committed. The inode must already be |
78 | * associated with the given transaction. All we do here is record where the |
79 | * inode was dirtied and mark the transaction and inode log item dirty; |
80 | * everything else is done in the ->precommit log item operation after the |
81 | * changes in the transaction have been completed. |
82 | */ |
83 | void |
84 | xfs_trans_log_inode( |
85 | struct xfs_trans *tp, |
86 | struct xfs_inode *ip, |
87 | uint flags) |
88 | { |
89 | struct xfs_inode_log_item *iip = ip->i_itemp; |
90 | struct inode *inode = VFS_I(ip); |
91 | |
92 | ASSERT(iip); |
93 | xfs_assert_ilocked(ip, XFS_ILOCK_EXCL); |
94 | ASSERT(!xfs_iflags_test(ip, XFS_ISTALE)); |
95 | |
96 | tp->t_flags |= XFS_TRANS_DIRTY; |
97 | |
98 | /* |
99 | * First time we log the inode in a transaction, bump the inode change |
100 | * counter if it is configured for this to occur. While we have the |
101 | * inode locked exclusively for metadata modification, we can usually |
102 | * avoid setting XFS_ILOG_CORE if no one has queried the value since |
103 | * the last time it was incremented. If we have XFS_ILOG_CORE already |
104 | * set however, then go ahead and bump the i_version counter |
105 | * unconditionally. |
106 | */ |
107 | if (!test_and_set_bit(XFS_LI_DIRTY, &iip->ili_item.li_flags)) { |
108 | if (IS_I_VERSION(inode) && |
109 | inode_maybe_inc_iversion(inode, force: flags & XFS_ILOG_CORE)) |
110 | flags |= XFS_ILOG_IVERSION; |
111 | } |
112 | |
113 | iip->ili_dirty_flags |= flags; |
114 | } |
115 | |
116 | int |
117 | xfs_trans_roll_inode( |
118 | struct xfs_trans **tpp, |
119 | struct xfs_inode *ip) |
120 | { |
121 | int error; |
122 | |
123 | xfs_trans_log_inode(tp: *tpp, ip, XFS_ILOG_CORE); |
124 | error = xfs_trans_roll(tpp); |
125 | if (!error) |
126 | xfs_trans_ijoin(tp: *tpp, ip, lock_flags: 0); |
127 | return error; |
128 | } |
129 | |