2 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
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
7 * published by the Free Software Foundation.
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.
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
20 #include "xfs_shared.h"
21 #include "xfs_format.h"
22 #include "xfs_log_format.h"
23 #include "xfs_trans_resv.h"
25 #include "xfs_mount.h"
26 #include "xfs_inode.h"
27 #include "xfs_trans.h"
28 #include "xfs_trans_priv.h"
29 #include "xfs_inode_item.h"
30 #include "xfs_trace.h"
33 * Add a locked inode to the transaction.
35 * The inode must be locked, and it cannot be associated with any transaction.
36 * If lock_flags is non-zero the inode will be unlocked on transaction commit.
44 xfs_inode_log_item_t *iip;
46 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
47 if (ip->i_itemp == NULL)
48 xfs_inode_item_init(ip, ip->i_mount);
51 ASSERT(iip->ili_lock_flags == 0);
52 iip->ili_lock_flags = lock_flags;
55 * Get a log_item_desc to point at the new item.
57 xfs_trans_add_item(tp, &iip->ili_item);
61 * Transactional inode timestamp update. Requires the inode to be locked and
62 * joined to the transaction supplied. Relies on the transaction subsystem to
63 * track dirty state and update/writeback the inode accordingly.
71 struct inode *inode = VFS_I(ip);
75 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
77 tv = current_fs_time(inode->i_sb);
79 if ((flags & XFS_ICHGTIME_MOD) &&
80 !timespec_equal(&inode->i_mtime, &tv)) {
82 ip->i_d.di_mtime.t_sec = tv.tv_sec;
83 ip->i_d.di_mtime.t_nsec = tv.tv_nsec;
85 if ((flags & XFS_ICHGTIME_CHG) &&
86 !timespec_equal(&inode->i_ctime, &tv)) {
88 ip->i_d.di_ctime.t_sec = tv.tv_sec;
89 ip->i_d.di_ctime.t_nsec = tv.tv_nsec;
94 * This is called to mark the fields indicated in fieldmask as needing
95 * to be logged when the transaction is committed. The inode must
96 * already be associated with the given transaction.
98 * The values for fieldmask are defined in xfs_inode_item.h. We always
99 * log all of the core inode if any of it has changed, and we always log
100 * all of the inline data/extents/b-tree root if any of them has changed.
108 ASSERT(ip->i_itemp != NULL);
109 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
112 * First time we log the inode in a transaction, bump the inode change
113 * counter if it is configured for this to occur. We don't use
114 * inode_inc_version() because there is no need for extra locking around
115 * i_version as we already hold the inode locked exclusively for
116 * metadata modification.
118 if (!(ip->i_itemp->ili_item.li_desc->lid_flags & XFS_LID_DIRTY) &&
119 IS_I_VERSION(VFS_I(ip))) {
120 ip->i_d.di_changecount = ++VFS_I(ip)->i_version;
121 flags |= XFS_ILOG_CORE;
124 tp->t_flags |= XFS_TRANS_DIRTY;
125 ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY;
128 * Always OR in the bits from the ili_last_fields field.
129 * This is to coordinate with the xfs_iflush() and xfs_iflush_done()
130 * routines in the eventual clearing of the ili_fields bits.
131 * See the big comment in xfs_iflush() for an explanation of
132 * this coordination mechanism.
134 flags |= ip->i_itemp->ili_last_fields;
135 ip->i_itemp->ili_fields |= flags;