Commit | Line | Data |
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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 LT |
27 | #include "xfs_dir2.h" |
28 | #include "xfs_dmapi.h" | |
29 | #include "xfs_mount.h" | |
1da177e4 | 30 | #include "xfs_bmap_btree.h" |
a844f451 | 31 | #include "xfs_alloc_btree.h" |
1da177e4 | 32 | #include "xfs_ialloc_btree.h" |
1da177e4 | 33 | #include "xfs_dir2_sf.h" |
a844f451 | 34 | #include "xfs_attr_sf.h" |
1da177e4 | 35 | #include "xfs_dinode.h" |
1da177e4 | 36 | #include "xfs_inode.h" |
a844f451 NS |
37 | #include "xfs_btree.h" |
38 | #include "xfs_ialloc.h" | |
39 | #include "xfs_trans_priv.h" | |
40 | #include "xfs_inode_item.h" | |
1da177e4 LT |
41 | |
42 | #ifdef XFS_TRANS_DEBUG | |
43 | STATIC void | |
44 | xfs_trans_inode_broot_debug( | |
45 | xfs_inode_t *ip); | |
46 | #else | |
47 | #define xfs_trans_inode_broot_debug(ip) | |
48 | #endif | |
49 | ||
50 | ||
51 | /* | |
aa72a5cf | 52 | * Get an inode and join it to the transaction. |
1da177e4 LT |
53 | */ |
54 | int | |
55 | xfs_trans_iget( | |
56 | xfs_mount_t *mp, | |
57 | xfs_trans_t *tp, | |
58 | xfs_ino_t ino, | |
59 | uint flags, | |
60 | uint lock_flags, | |
61 | xfs_inode_t **ipp) | |
62 | { | |
63 | int error; | |
1da177e4 | 64 | |
aa72a5cf CH |
65 | error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp, 0); |
66 | if (!error && tp) | |
67 | xfs_trans_ijoin(tp, *ipp, lock_flags); | |
68 | return error; | |
1da177e4 LT |
69 | } |
70 | ||
71 | /* | |
72 | * Add the locked inode to the transaction. | |
73 | * The inode must be locked, and it cannot be associated with any | |
74 | * transaction. The caller must specify the locks already held | |
75 | * on the inode. | |
76 | */ | |
77 | void | |
78 | xfs_trans_ijoin( | |
79 | xfs_trans_t *tp, | |
80 | xfs_inode_t *ip, | |
81 | uint lock_flags) | |
82 | { | |
83 | xfs_inode_log_item_t *iip; | |
84 | ||
85 | ASSERT(ip->i_transp == NULL); | |
579aa9ca | 86 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
87 | ASSERT(lock_flags & XFS_ILOCK_EXCL); |
88 | if (ip->i_itemp == NULL) | |
89 | xfs_inode_item_init(ip, ip->i_mount); | |
90 | iip = ip->i_itemp; | |
91 | ASSERT(iip->ili_flags == 0); | |
1da177e4 LT |
92 | |
93 | /* | |
94 | * Get a log_item_desc to point at the new item. | |
95 | */ | |
96 | (void) xfs_trans_add_item(tp, (xfs_log_item_t*)(iip)); | |
97 | ||
98 | xfs_trans_inode_broot_debug(ip); | |
99 | ||
100 | /* | |
101 | * If the IO lock is already held, mark that in the inode log item. | |
102 | */ | |
103 | if (lock_flags & XFS_IOLOCK_EXCL) { | |
104 | iip->ili_flags |= XFS_ILI_IOLOCKED_EXCL; | |
105 | } else if (lock_flags & XFS_IOLOCK_SHARED) { | |
106 | iip->ili_flags |= XFS_ILI_IOLOCKED_SHARED; | |
107 | } | |
108 | ||
109 | /* | |
110 | * Initialize i_transp so we can find it with xfs_inode_incore() | |
111 | * in xfs_trans_iget() above. | |
112 | */ | |
113 | ip->i_transp = tp; | |
114 | } | |
115 | ||
116 | ||
117 | ||
118 | /* | |
119 | * Mark the inode as not needing to be unlocked when the inode item's | |
120 | * IOP_UNLOCK() routine is called. The inode must already be locked | |
121 | * and associated with the given transaction. | |
122 | */ | |
123 | /*ARGSUSED*/ | |
124 | void | |
125 | xfs_trans_ihold( | |
126 | xfs_trans_t *tp, | |
127 | xfs_inode_t *ip) | |
128 | { | |
129 | ASSERT(ip->i_transp == tp); | |
130 | ASSERT(ip->i_itemp != NULL); | |
579aa9ca | 131 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
132 | |
133 | ip->i_itemp->ili_flags |= XFS_ILI_HOLD; | |
134 | } | |
135 | ||
1da177e4 LT |
136 | |
137 | /* | |
138 | * This is called to mark the fields indicated in fieldmask as needing | |
139 | * to be logged when the transaction is committed. The inode must | |
140 | * already be associated with the given transaction. | |
141 | * | |
142 | * The values for fieldmask are defined in xfs_inode_item.h. We always | |
143 | * log all of the core inode if any of it has changed, and we always log | |
144 | * all of the inline data/extents/b-tree root if any of them has changed. | |
145 | */ | |
146 | void | |
147 | xfs_trans_log_inode( | |
148 | xfs_trans_t *tp, | |
149 | xfs_inode_t *ip, | |
150 | uint flags) | |
151 | { | |
152 | xfs_log_item_desc_t *lidp; | |
153 | ||
154 | ASSERT(ip->i_transp == tp); | |
155 | ASSERT(ip->i_itemp != NULL); | |
579aa9ca | 156 | ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL)); |
1da177e4 LT |
157 | |
158 | lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(ip->i_itemp)); | |
159 | ASSERT(lidp != NULL); | |
160 | ||
161 | tp->t_flags |= XFS_TRANS_DIRTY; | |
162 | lidp->lid_flags |= XFS_LID_DIRTY; | |
163 | ||
164 | /* | |
165 | * Always OR in the bits from the ili_last_fields field. | |
166 | * This is to coordinate with the xfs_iflush() and xfs_iflush_done() | |
167 | * routines in the eventual clearing of the ilf_fields bits. | |
168 | * See the big comment in xfs_iflush() for an explanation of | |
c41564b5 | 169 | * this coordination mechanism. |
1da177e4 LT |
170 | */ |
171 | flags |= ip->i_itemp->ili_last_fields; | |
172 | ip->i_itemp->ili_format.ilf_fields |= flags; | |
173 | } | |
174 | ||
175 | #ifdef XFS_TRANS_DEBUG | |
176 | /* | |
177 | * Keep track of the state of the inode btree root to make sure we | |
178 | * log it properly. | |
179 | */ | |
180 | STATIC void | |
181 | xfs_trans_inode_broot_debug( | |
182 | xfs_inode_t *ip) | |
183 | { | |
184 | xfs_inode_log_item_t *iip; | |
185 | ||
186 | ASSERT(ip->i_itemp != NULL); | |
187 | iip = ip->i_itemp; | |
188 | if (iip->ili_root_size != 0) { | |
189 | ASSERT(iip->ili_orig_root != NULL); | |
f0e2d93c | 190 | kmem_free(iip->ili_orig_root); |
1da177e4 LT |
191 | iip->ili_root_size = 0; |
192 | iip->ili_orig_root = NULL; | |
193 | } | |
194 | if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE) { | |
195 | ASSERT((ip->i_df.if_broot != NULL) && | |
196 | (ip->i_df.if_broot_bytes > 0)); | |
197 | iip->ili_root_size = ip->i_df.if_broot_bytes; | |
198 | iip->ili_orig_root = | |
199 | (char*)kmem_alloc(iip->ili_root_size, KM_SLEEP); | |
200 | memcpy(iip->ili_orig_root, (char*)(ip->i_df.if_broot), | |
201 | iip->ili_root_size); | |
202 | } | |
203 | } | |
204 | #endif |