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_types.h"
24 #include "xfs_trans.h"
27 #include "xfs_mount.h"
28 #include "xfs_bmap_btree.h"
29 #include "xfs_alloc_btree.h"
30 #include "xfs_ialloc_btree.h"
31 #include "xfs_dinode.h"
32 #include "xfs_inode.h"
33 #include "xfs_btree.h"
34 #include "xfs_trans_priv.h"
35 #include "xfs_inode_item.h"
36 #include "xfs_trace.h"
38 #ifdef XFS_TRANS_DEBUG
40 xfs_trans_inode_broot_debug(
43 #define xfs_trans_inode_broot_debug(ip)
47 * Get an inode and join it to the transaction.
60 error
= xfs_iget(mp
, tp
, ino
, flags
, lock_flags
, ipp
);
62 xfs_trans_ijoin(tp
, *ipp
);
63 (*ipp
)->i_itemp
->ili_lock_flags
= lock_flags
;
69 * Add a locked inode to the transaction.
71 * The inode must be locked, and it cannot be associated with any transaction.
78 xfs_inode_log_item_t
*iip
;
80 ASSERT(ip
->i_transp
== NULL
);
81 ASSERT(xfs_isilocked(ip
, XFS_ILOCK_EXCL
));
82 if (ip
->i_itemp
== NULL
)
83 xfs_inode_item_init(ip
, ip
->i_mount
);
85 ASSERT(iip
->ili_lock_flags
== 0);
88 * Get a log_item_desc to point at the new item.
90 xfs_trans_add_item(tp
, &iip
->ili_item
);
92 xfs_trans_inode_broot_debug(ip
);
95 * Initialize i_transp so we can find it with xfs_inode_incore()
96 * in xfs_trans_iget() above.
102 * Add a locked inode to the transaction.
105 * Grabs a reference to the inode which will be dropped when the transaction
106 * is commited. The inode will also be unlocked at that point. The inode
107 * must be locked, and it cannot be associated with any transaction.
111 struct xfs_trans
*tp
,
112 struct xfs_inode
*ip
,
115 xfs_trans_ijoin(tp
, ip
);
117 ip
->i_itemp
->ili_lock_flags
= lock_flags
;
121 * Transactional inode timestamp update. Requires the inode to be locked and
122 * joined to the transaction supplied. Relies on the transaction subsystem to
123 * track dirty state and update/writeback the inode accordingly.
127 struct xfs_trans
*tp
,
128 struct xfs_inode
*ip
,
131 struct inode
*inode
= VFS_I(ip
);
135 ASSERT(xfs_isilocked(ip
, XFS_ILOCK_EXCL
));
136 ASSERT(ip
->i_transp
== tp
);
138 tv
= current_fs_time(inode
->i_sb
);
140 if ((flags
& XFS_ICHGTIME_MOD
) &&
141 !timespec_equal(&inode
->i_mtime
, &tv
)) {
144 if ((flags
& XFS_ICHGTIME_CHG
) &&
145 !timespec_equal(&inode
->i_ctime
, &tv
)) {
151 * This is called to mark the fields indicated in fieldmask as needing
152 * to be logged when the transaction is committed. The inode must
153 * already be associated with the given transaction.
155 * The values for fieldmask are defined in xfs_inode_item.h. We always
156 * log all of the core inode if any of it has changed, and we always log
157 * all of the inline data/extents/b-tree root if any of them has changed.
165 ASSERT(ip
->i_transp
== tp
);
166 ASSERT(ip
->i_itemp
!= NULL
);
167 ASSERT(xfs_isilocked(ip
, XFS_ILOCK_EXCL
));
169 tp
->t_flags
|= XFS_TRANS_DIRTY
;
170 ip
->i_itemp
->ili_item
.li_desc
->lid_flags
|= XFS_LID_DIRTY
;
173 * Always OR in the bits from the ili_last_fields field.
174 * This is to coordinate with the xfs_iflush() and xfs_iflush_done()
175 * routines in the eventual clearing of the ilf_fields bits.
176 * See the big comment in xfs_iflush() for an explanation of
177 * this coordination mechanism.
179 flags
|= ip
->i_itemp
->ili_last_fields
;
180 ip
->i_itemp
->ili_format
.ilf_fields
|= flags
;
183 #ifdef XFS_TRANS_DEBUG
185 * Keep track of the state of the inode btree root to make sure we
189 xfs_trans_inode_broot_debug(
192 xfs_inode_log_item_t
*iip
;
194 ASSERT(ip
->i_itemp
!= NULL
);
196 if (iip
->ili_root_size
!= 0) {
197 ASSERT(iip
->ili_orig_root
!= NULL
);
198 kmem_free(iip
->ili_orig_root
);
199 iip
->ili_root_size
= 0;
200 iip
->ili_orig_root
= NULL
;
202 if (ip
->i_d
.di_format
== XFS_DINODE_FMT_BTREE
) {
203 ASSERT((ip
->i_df
.if_broot
!= NULL
) &&
204 (ip
->i_df
.if_broot_bytes
> 0));
205 iip
->ili_root_size
= ip
->i_df
.if_broot_bytes
;
207 (char*)kmem_alloc(iip
->ili_root_size
, KM_SLEEP
);
208 memcpy(iip
->ili_orig_root
, (char*)(ip
->i_df
.if_broot
),
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