Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
7b718769 NS |
2 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
7b718769 NS |
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 | |
1da177e4 LT |
7 | * published by the Free Software Foundation. |
8 | * | |
7b718769 NS |
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. | |
1da177e4 | 13 | * |
7b718769 NS |
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 | |
1da177e4 | 17 | */ |
1da177e4 | 18 | #include "xfs.h" |
a844f451 | 19 | #include "xfs_fs.h" |
1da177e4 | 20 | #include "xfs_types.h" |
a844f451 | 21 | #include "xfs_bit.h" |
1da177e4 | 22 | #include "xfs_log.h" |
a844f451 | 23 | #include "xfs_inum.h" |
1da177e4 LT |
24 | #include "xfs_trans.h" |
25 | #include "xfs_sb.h" | |
26 | #include "xfs_ag.h" | |
1da177e4 | 27 | #include "xfs_mount.h" |
1da177e4 | 28 | #include "xfs_bmap_btree.h" |
a844f451 | 29 | #include "xfs_alloc_btree.h" |
1da177e4 | 30 | #include "xfs_ialloc_btree.h" |
1da177e4 | 31 | #include "xfs_dinode.h" |
1da177e4 | 32 | #include "xfs_inode.h" |
a844f451 | 33 | #include "xfs_btree.h" |
a844f451 NS |
34 | #include "xfs_trans_priv.h" |
35 | #include "xfs_inode_item.h" | |
898621d5 | 36 | #include "xfs_trace.h" |
1da177e4 LT |
37 | |
38 | #ifdef XFS_TRANS_DEBUG | |
39 | STATIC void | |
40 | xfs_trans_inode_broot_debug( | |
41 | xfs_inode_t *ip); | |
42 | #else | |
43 | #define xfs_trans_inode_broot_debug(ip) | |
44 | #endif | |
45 | ||
1da177e4 | 46 | /* |
aa72a5cf | 47 | * Get an inode and join it to the transaction. |
1da177e4 LT |
48 | */ |
49 | int | |
50 | xfs_trans_iget( | |
51 | xfs_mount_t *mp, | |
52 | xfs_trans_t *tp, | |
53 | xfs_ino_t ino, | |
54 | uint flags, | |
55 | uint lock_flags, | |
56 | xfs_inode_t **ipp) | |
57 | { | |
58 | int error; | |
1da177e4 | 59 | |
7b6259e7 | 60 | error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp); |
898621d5 CH |
61 | if (!error && tp) { |
62 | xfs_trans_ijoin(tp, *ipp); | |
63 | (*ipp)->i_itemp->ili_lock_flags = lock_flags; | |
64 | } | |
aa72a5cf | 65 | return error; |
1da177e4 LT |
66 | } |
67 | ||
68 | /* | |
898621d5 CH |
69 | * Add a locked inode to the transaction. |
70 | * | |
71 | * The inode must be locked, and it cannot be associated with any transaction. | |
1da177e4 LT |
72 | */ |
73 | void | |
74 | xfs_trans_ijoin( | |
898621d5 CH |
75 | struct xfs_trans *tp, |
76 | struct xfs_inode *ip) | |
1da177e4 LT |
77 | { |
78 | xfs_inode_log_item_t *iip; | |
79 | ||
80 | ASSERT(ip->i_transp == NULL); | |
579aa9ca | 81 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
82 | if (ip->i_itemp == NULL) |
83 | xfs_inode_item_init(ip, ip->i_mount); | |
84 | iip = ip->i_itemp; | |
898621d5 | 85 | ASSERT(iip->ili_lock_flags == 0); |
1da177e4 LT |
86 | |
87 | /* | |
88 | * Get a log_item_desc to point at the new item. | |
89 | */ | |
e98c414f | 90 | xfs_trans_add_item(tp, &iip->ili_item); |
1da177e4 LT |
91 | |
92 | xfs_trans_inode_broot_debug(ip); | |
93 | ||
1da177e4 LT |
94 | /* |
95 | * Initialize i_transp so we can find it with xfs_inode_incore() | |
96 | * in xfs_trans_iget() above. | |
97 | */ | |
98 | ip->i_transp = tp; | |
99 | } | |
100 | ||
1da177e4 | 101 | /* |
898621d5 CH |
102 | * Add a locked inode to the transaction. |
103 | * | |
104 | * | |
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. | |
1da177e4 | 108 | */ |
1da177e4 | 109 | void |
898621d5 CH |
110 | xfs_trans_ijoin_ref( |
111 | struct xfs_trans *tp, | |
112 | struct xfs_inode *ip, | |
113 | uint lock_flags) | |
1da177e4 | 114 | { |
898621d5 CH |
115 | xfs_trans_ijoin(tp, ip); |
116 | IHOLD(ip); | |
117 | ip->i_itemp->ili_lock_flags = lock_flags; | |
1da177e4 LT |
118 | } |
119 | ||
dcd79a14 DC |
120 | /* |
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. | |
124 | */ | |
125 | void | |
126 | xfs_trans_ichgtime( | |
127 | struct xfs_trans *tp, | |
128 | struct xfs_inode *ip, | |
129 | int flags) | |
130 | { | |
131 | struct inode *inode = VFS_I(ip); | |
132 | timespec_t tv; | |
133 | ||
134 | ASSERT(tp); | |
135 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); | |
136 | ASSERT(ip->i_transp == tp); | |
137 | ||
138 | tv = current_fs_time(inode->i_sb); | |
139 | ||
140 | if ((flags & XFS_ICHGTIME_MOD) && | |
141 | !timespec_equal(&inode->i_mtime, &tv)) { | |
142 | inode->i_mtime = tv; | |
143 | } | |
144 | if ((flags & XFS_ICHGTIME_CHG) && | |
145 | !timespec_equal(&inode->i_ctime, &tv)) { | |
146 | inode->i_ctime = tv; | |
147 | } | |
148 | } | |
149 | ||
1da177e4 LT |
150 | /* |
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. | |
154 | * | |
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. | |
158 | */ | |
159 | void | |
160 | xfs_trans_log_inode( | |
161 | xfs_trans_t *tp, | |
162 | xfs_inode_t *ip, | |
163 | uint flags) | |
164 | { | |
1da177e4 LT |
165 | ASSERT(ip->i_transp == tp); |
166 | ASSERT(ip->i_itemp != NULL); | |
579aa9ca | 167 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 | 168 | |
1da177e4 | 169 | tp->t_flags |= XFS_TRANS_DIRTY; |
e98c414f | 170 | ip->i_itemp->ili_item.li_desc->lid_flags |= XFS_LID_DIRTY; |
1da177e4 LT |
171 | |
172 | /* | |
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 | |
c41564b5 | 177 | * this coordination mechanism. |
1da177e4 LT |
178 | */ |
179 | flags |= ip->i_itemp->ili_last_fields; | |
180 | ip->i_itemp->ili_format.ilf_fields |= flags; | |
181 | } | |
182 | ||
183 | #ifdef XFS_TRANS_DEBUG | |
184 | /* | |
185 | * Keep track of the state of the inode btree root to make sure we | |
186 | * log it properly. | |
187 | */ | |
188 | STATIC void | |
189 | xfs_trans_inode_broot_debug( | |
190 | xfs_inode_t *ip) | |
191 | { | |
192 | xfs_inode_log_item_t *iip; | |
193 | ||
194 | ASSERT(ip->i_itemp != NULL); | |
195 | iip = ip->i_itemp; | |
196 | if (iip->ili_root_size != 0) { | |
197 | ASSERT(iip->ili_orig_root != NULL); | |
f0e2d93c | 198 | kmem_free(iip->ili_orig_root); |
1da177e4 LT |
199 | iip->ili_root_size = 0; |
200 | iip->ili_orig_root = NULL; | |
201 | } | |
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; | |
206 | iip->ili_orig_root = | |
207 | (char*)kmem_alloc(iip->ili_root_size, KM_SLEEP); | |
208 | memcpy(iip->ili_orig_root, (char*)(ip->i_df.if_broot), | |
209 | iip->ili_root_size); | |
210 | } | |
211 | } | |
212 | #endif |