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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Nathan Scott7b718762005-11-02 14:58:39 +11002 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
3 * All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Nathan Scott7b718762005-11-02 14:58:39 +11005 * 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 Torvalds1da177e2005-04-16 15:20:36 -07007 * published by the Free Software Foundation.
8 *
Nathan Scott7b718762005-11-02 14:58:39 +11009 * 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 Torvalds1da177e2005-04-16 15:20:36 -070013 *
Nathan Scott7b718762005-11-02 14:58:39 +110014 * 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 Torvalds1da177e2005-04-16 15:20:36 -070017 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070018#include "xfs.h"
Nathan Scotta844f452005-11-02 14:38:42 +110019#include "xfs_fs.h"
Dave Chinner70a98832013-10-23 10:36:05 +110020#include "xfs_shared.h"
Dave Chinnera4fbe6a2013-10-23 10:51:50 +110021#include "xfs_format.h"
Dave Chinner239880e2013-10-23 10:50:10 +110022#include "xfs_log_format.h"
23#include "xfs_trans_resv.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070024#include "xfs_mount.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include "xfs_inode.h"
Dave Chinner239880e2013-10-23 10:50:10 +110026#include "xfs_trans.h"
Nathan Scotta844f452005-11-02 14:38:42 +110027#include "xfs_trans_priv.h"
28#include "xfs_inode_item.h"
Christoph Hellwig898621d2010-06-24 11:36:58 +100029#include "xfs_trace.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030
Linus Torvalds1da177e2005-04-16 15:20:36 -070031/*
Christoph Hellwig898621d2010-06-24 11:36:58 +100032 * Add a locked inode to the transaction.
33 *
34 * The inode must be locked, and it cannot be associated with any transaction.
Christoph Hellwigddc34152011-09-19 15:00:54 +000035 * If lock_flags is non-zero the inode will be unlocked on transaction commit.
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 */
37void
38xfs_trans_ijoin(
Christoph Hellwig898621d2010-06-24 11:36:58 +100039 struct xfs_trans *tp,
Christoph Hellwigddc34152011-09-19 15:00:54 +000040 struct xfs_inode *ip,
41 uint lock_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -070042{
43 xfs_inode_log_item_t *iip;
44
Christoph Hellwig579aa9c2008-04-22 17:34:00 +100045 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 if (ip->i_itemp == NULL)
47 xfs_inode_item_init(ip, ip->i_mount);
48 iip = ip->i_itemp;
Christoph Hellwigddc34152011-09-19 15:00:54 +000049
Christoph Hellwig898621d2010-06-24 11:36:58 +100050 ASSERT(iip->ili_lock_flags == 0);
Christoph Hellwigddc34152011-09-19 15:00:54 +000051 iip->ili_lock_flags = lock_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
53 /*
54 * Get a log_item_desc to point at the new item.
55 */
Christoph Hellwige98c4142010-06-23 18:11:15 +100056 xfs_trans_add_item(tp, &iip->ili_item);
Linus Torvalds1da177e2005-04-16 15:20:36 -070057}
58
Linus Torvalds1da177e2005-04-16 15:20:36 -070059/*
Dave Chinnerdcd79a12010-09-28 12:27:25 +100060 * Transactional inode timestamp update. Requires the inode to be locked and
61 * joined to the transaction supplied. Relies on the transaction subsystem to
62 * track dirty state and update/writeback the inode accordingly.
63 */
64void
65xfs_trans_ichgtime(
66 struct xfs_trans *tp,
67 struct xfs_inode *ip,
68 int flags)
69{
70 struct inode *inode = VFS_I(ip);
Dave Chinnere076b0f2014-10-02 09:18:13 +100071 struct timespec tv;
Dave Chinnerdcd79a12010-09-28 12:27:25 +100072
73 ASSERT(tp);
74 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
Dave Chinnerdcd79a12010-09-28 12:27:25 +100075
76 tv = current_fs_time(inode->i_sb);
77
Dave Chinner39878482016-02-09 16:54:58 +110078 if (flags & XFS_ICHGTIME_MOD)
Dave Chinnerdcd79a12010-09-28 12:27:25 +100079 inode->i_mtime = tv;
Dave Chinner39878482016-02-09 16:54:58 +110080 if (flags & XFS_ICHGTIME_CHG)
Dave Chinnerdcd79a12010-09-28 12:27:25 +100081 inode->i_ctime = tv;
Dave Chinnerdcd79a12010-09-28 12:27:25 +100082}
83
84/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070085 * This is called to mark the fields indicated in fieldmask as needing
86 * to be logged when the transaction is committed. The inode must
87 * already be associated with the given transaction.
88 *
89 * The values for fieldmask are defined in xfs_inode_item.h. We always
90 * log all of the core inode if any of it has changed, and we always log
91 * all of the inline data/extents/b-tree root if any of them has changed.
92 */
93void
94xfs_trans_log_inode(
95 xfs_trans_t *tp,
96 xfs_inode_t *ip,
97 uint flags)
98{
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 ASSERT(ip->i_itemp != NULL);
Christoph Hellwig579aa9c2008-04-22 17:34:00 +1000100 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101
Dave Chinnerdc037ad2013-06-27 16:04:59 +1000102 /*
Dave Chinnerfc0561c2015-11-03 13:14:59 +1100103 * Record the specific change for fdatasync optimisation. This
104 * allows fdatasync to skip log forces for inodes that are only
105 * timestamp dirty. We do this before the change count so that
106 * the core being logged in this case does not impact on fdatasync
107 * behaviour.
108 */
109 ip->i_itemp->ili_fsync_fields |= flags;
110
111 /*
Dave Chinnerdc037ad2013-06-27 16:04:59 +1000112 * First time we log the inode in a transaction, bump the inode change
Dave Chinner2fe8c1c2013-11-01 15:27:17 +1100113 * 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.
Dave Chinnerdc037ad2013-06-27 16:04:59 +1000117 */
118 if (!(ip->i_itemp->ili_item.li_desc->lid_flags & XFS_LID_DIRTY) &&
119 IS_I_VERSION(VFS_I(ip))) {
Dave Chinner83e06f22016-02-09 16:54:58 +1100120 VFS_I(ip)->i_version++;
Dave Chinnerdc037ad2013-06-27 16:04:59 +1000121 flags |= XFS_ILOG_CORE;
122 }
123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 tp->t_flags |= XFS_TRANS_DIRTY;
Christoph Hellwige98c4142010-06-23 18:11:15 +1000125 ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
127 /*
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()
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000130 * routines in the eventual clearing of the ili_fields bits.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 * See the big comment in xfs_iflush() for an explanation of
Nathan Scottc41564b2006-03-29 08:55:14 +1000132 * this coordination mechanism.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 */
134 flags |= ip->i_itemp->ili_last_fields;
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000135 ip->i_itemp->ili_fields |= flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136}