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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"
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#include "xfs_types.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#include "xfs_log.h"
22#include "xfs_trans.h"
23#include "xfs_sb.h"
24#include "xfs_ag.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070025#include "xfs_mount.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#include "xfs_bmap_btree.h"
Nathan Scotta844f452005-11-02 14:38:42 +110027#include "xfs_alloc_btree.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include "xfs_ialloc_btree.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include "xfs_dinode.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include "xfs_inode.h"
Nathan Scotta844f452005-11-02 14:38:42 +110031#include "xfs_btree.h"
Nathan Scotta844f452005-11-02 14:38:42 +110032#include "xfs_trans_priv.h"
33#include "xfs_inode_item.h"
Christoph Hellwig898621d2010-06-24 11:36:58 +100034#include "xfs_trace.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
Linus Torvalds1da177e2005-04-16 15:20:36 -070036/*
Christoph Hellwig898621d2010-06-24 11:36:58 +100037 * Add a locked inode to the transaction.
38 *
39 * The inode must be locked, and it cannot be associated with any transaction.
Christoph Hellwigddc34152011-09-19 15:00:54 +000040 * If lock_flags is non-zero the inode will be unlocked on transaction commit.
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 */
42void
43xfs_trans_ijoin(
Christoph Hellwig898621d2010-06-24 11:36:58 +100044 struct xfs_trans *tp,
Christoph Hellwigddc34152011-09-19 15:00:54 +000045 struct xfs_inode *ip,
46 uint lock_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -070047{
48 xfs_inode_log_item_t *iip;
49
Christoph Hellwig579aa9c2008-04-22 17:34:00 +100050 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
Linus Torvalds1da177e2005-04-16 15:20:36 -070051 if (ip->i_itemp == NULL)
52 xfs_inode_item_init(ip, ip->i_mount);
53 iip = ip->i_itemp;
Christoph Hellwigddc34152011-09-19 15:00:54 +000054
Christoph Hellwig898621d2010-06-24 11:36:58 +100055 ASSERT(iip->ili_lock_flags == 0);
Christoph Hellwigddc34152011-09-19 15:00:54 +000056 iip->ili_lock_flags = lock_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
58 /*
59 * Get a log_item_desc to point at the new item.
60 */
Christoph Hellwige98c4142010-06-23 18:11:15 +100061 xfs_trans_add_item(tp, &iip->ili_item);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062}
63
Linus Torvalds1da177e2005-04-16 15:20:36 -070064/*
Dave Chinnerdcd79a12010-09-28 12:27:25 +100065 * Transactional inode timestamp update. Requires the inode to be locked and
66 * joined to the transaction supplied. Relies on the transaction subsystem to
67 * track dirty state and update/writeback the inode accordingly.
68 */
69void
70xfs_trans_ichgtime(
71 struct xfs_trans *tp,
72 struct xfs_inode *ip,
73 int flags)
74{
75 struct inode *inode = VFS_I(ip);
76 timespec_t tv;
77
78 ASSERT(tp);
79 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
Dave Chinnerdcd79a12010-09-28 12:27:25 +100080
81 tv = current_fs_time(inode->i_sb);
82
83 if ((flags & XFS_ICHGTIME_MOD) &&
84 !timespec_equal(&inode->i_mtime, &tv)) {
85 inode->i_mtime = tv;
Christoph Hellwig8a9c9982012-02-29 09:53:52 +000086 ip->i_d.di_mtime.t_sec = tv.tv_sec;
87 ip->i_d.di_mtime.t_nsec = tv.tv_nsec;
Dave Chinnerdcd79a12010-09-28 12:27:25 +100088 }
89 if ((flags & XFS_ICHGTIME_CHG) &&
90 !timespec_equal(&inode->i_ctime, &tv)) {
91 inode->i_ctime = tv;
Christoph Hellwig8a9c9982012-02-29 09:53:52 +000092 ip->i_d.di_ctime.t_sec = tv.tv_sec;
93 ip->i_d.di_ctime.t_nsec = tv.tv_nsec;
Dave Chinnerdcd79a12010-09-28 12:27:25 +100094 }
95}
96
97/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070098 * This is called to mark the fields indicated in fieldmask as needing
99 * to be logged when the transaction is committed. The inode must
100 * already be associated with the given transaction.
101 *
102 * The values for fieldmask are defined in xfs_inode_item.h. We always
103 * log all of the core inode if any of it has changed, and we always log
104 * all of the inline data/extents/b-tree root if any of them has changed.
105 */
106void
107xfs_trans_log_inode(
108 xfs_trans_t *tp,
109 xfs_inode_t *ip,
110 uint flags)
111{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 ASSERT(ip->i_itemp != NULL);
Christoph Hellwig579aa9c2008-04-22 17:34:00 +1000113 ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 tp->t_flags |= XFS_TRANS_DIRTY;
Christoph Hellwige98c4142010-06-23 18:11:15 +1000116 ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
118 /*
119 * Always OR in the bits from the ili_last_fields field.
120 * This is to coordinate with the xfs_iflush() and xfs_iflush_done()
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000121 * routines in the eventual clearing of the ili_fields bits.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122 * See the big comment in xfs_iflush() for an explanation of
Nathan Scottc41564b2006-03-29 08:55:14 +1000123 * this coordination mechanism.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 */
125 flags |= ip->i_itemp->ili_last_fields;
Christoph Hellwigf5d8d5c2012-02-29 09:53:54 +0000126 ip->i_itemp->ili_fields |= flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127}