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),