diff options
Diffstat (limited to 'fs/xfs/xfs_icreate_item.c')
-rw-r--r-- | fs/xfs/xfs_icreate_item.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/fs/xfs/xfs_icreate_item.c b/fs/xfs/xfs_icreate_item.c new file mode 100644 index 000000000000..7716a4e7375e --- /dev/null +++ b/fs/xfs/xfs_icreate_item.c | |||
@@ -0,0 +1,195 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2008-2010, 2013 Dave Chinner | ||
3 | * All Rights Reserved. | ||
4 | * | ||
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. | ||
8 | * | ||
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. | ||
13 | * | ||
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 | ||
17 | */ | ||
18 | #include "xfs.h" | ||
19 | #include "xfs_fs.h" | ||
20 | #include "xfs_types.h" | ||
21 | #include "xfs_bit.h" | ||
22 | #include "xfs_log.h" | ||
23 | #include "xfs_inum.h" | ||
24 | #include "xfs_trans.h" | ||
25 | #include "xfs_buf_item.h" | ||
26 | #include "xfs_sb.h" | ||
27 | #include "xfs_ag.h" | ||
28 | #include "xfs_dir2.h" | ||
29 | #include "xfs_mount.h" | ||
30 | #include "xfs_trans_priv.h" | ||
31 | #include "xfs_bmap_btree.h" | ||
32 | #include "xfs_alloc_btree.h" | ||
33 | #include "xfs_ialloc_btree.h" | ||
34 | #include "xfs_attr_sf.h" | ||
35 | #include "xfs_dinode.h" | ||
36 | #include "xfs_inode.h" | ||
37 | #include "xfs_inode_item.h" | ||
38 | #include "xfs_btree.h" | ||
39 | #include "xfs_ialloc.h" | ||
40 | #include "xfs_error.h" | ||
41 | #include "xfs_icreate_item.h" | ||
42 | |||
43 | kmem_zone_t *xfs_icreate_zone; /* inode create item zone */ | ||
44 | |||
45 | static inline struct xfs_icreate_item *ICR_ITEM(struct xfs_log_item *lip) | ||
46 | { | ||
47 | return container_of(lip, struct xfs_icreate_item, ic_item); | ||
48 | } | ||
49 | |||
50 | /* | ||
51 | * This returns the number of iovecs needed to log the given inode item. | ||
52 | * | ||
53 | * We only need one iovec for the icreate log structure. | ||
54 | */ | ||
55 | STATIC uint | ||
56 | xfs_icreate_item_size( | ||
57 | struct xfs_log_item *lip) | ||
58 | { | ||
59 | return 1; | ||
60 | } | ||
61 | |||
62 | /* | ||
63 | * This is called to fill in the vector of log iovecs for the | ||
64 | * given inode create log item. | ||
65 | */ | ||
66 | STATIC void | ||
67 | xfs_icreate_item_format( | ||
68 | struct xfs_log_item *lip, | ||
69 | struct xfs_log_iovec *log_vector) | ||
70 | { | ||
71 | struct xfs_icreate_item *icp = ICR_ITEM(lip); | ||
72 | |||
73 | log_vector->i_addr = (xfs_caddr_t)&icp->ic_format; | ||
74 | log_vector->i_len = sizeof(struct xfs_icreate_log); | ||
75 | log_vector->i_type = XLOG_REG_TYPE_ICREATE; | ||
76 | } | ||
77 | |||
78 | |||
79 | /* Pinning has no meaning for the create item, so just return. */ | ||
80 | STATIC void | ||
81 | xfs_icreate_item_pin( | ||
82 | struct xfs_log_item *lip) | ||
83 | { | ||
84 | } | ||
85 | |||
86 | |||
87 | /* pinning has no meaning for the create item, so just return. */ | ||
88 | STATIC void | ||
89 | xfs_icreate_item_unpin( | ||
90 | struct xfs_log_item *lip, | ||
91 | int remove) | ||
92 | { | ||
93 | } | ||
94 | |||
95 | STATIC void | ||
96 | xfs_icreate_item_unlock( | ||
97 | struct xfs_log_item *lip) | ||
98 | { | ||
99 | struct xfs_icreate_item *icp = ICR_ITEM(lip); | ||
100 | |||
101 | if (icp->ic_item.li_flags & XFS_LI_ABORTED) | ||
102 | kmem_zone_free(xfs_icreate_zone, icp); | ||
103 | return; | ||
104 | } | ||
105 | |||
106 | /* | ||
107 | * Because we have ordered buffers being tracked in the AIL for the inode | ||
108 | * creation, we don't need the create item after this. Hence we can free | ||
109 | * the log item and return -1 to tell the caller we're done with the item. | ||
110 | */ | ||
111 | STATIC xfs_lsn_t | ||
112 | xfs_icreate_item_committed( | ||
113 | struct xfs_log_item *lip, | ||
114 | xfs_lsn_t lsn) | ||
115 | { | ||
116 | struct xfs_icreate_item *icp = ICR_ITEM(lip); | ||
117 | |||
118 | kmem_zone_free(xfs_icreate_zone, icp); | ||
119 | return (xfs_lsn_t)-1; | ||
120 | } | ||
121 | |||
122 | /* item can never get into the AIL */ | ||
123 | STATIC uint | ||
124 | xfs_icreate_item_push( | ||
125 | struct xfs_log_item *lip, | ||
126 | struct list_head *buffer_list) | ||
127 | { | ||
128 | ASSERT(0); | ||
129 | return XFS_ITEM_SUCCESS; | ||
130 | } | ||
131 | |||
132 | /* Ordered buffers do the dependency tracking here, so this does nothing. */ | ||
133 | STATIC void | ||
134 | xfs_icreate_item_committing( | ||
135 | struct xfs_log_item *lip, | ||
136 | xfs_lsn_t lsn) | ||
137 | { | ||
138 | } | ||
139 | |||
140 | /* | ||
141 | * This is the ops vector shared by all buf log items. | ||
142 | */ | ||
143 | static struct xfs_item_ops xfs_icreate_item_ops = { | ||
144 | .iop_size = xfs_icreate_item_size, | ||
145 | .iop_format = xfs_icreate_item_format, | ||
146 | .iop_pin = xfs_icreate_item_pin, | ||
147 | .iop_unpin = xfs_icreate_item_unpin, | ||
148 | .iop_push = xfs_icreate_item_push, | ||
149 | .iop_unlock = xfs_icreate_item_unlock, | ||
150 | .iop_committed = xfs_icreate_item_committed, | ||
151 | .iop_committing = xfs_icreate_item_committing, | ||
152 | }; | ||
153 | |||
154 | |||
155 | /* | ||
156 | * Initialize the inode log item for a newly allocated (in-core) inode. | ||
157 | * | ||
158 | * Inode extents can only reside within an AG. Hence specify the starting | ||
159 | * block for the inode chunk by offset within an AG as well as the | ||
160 | * length of the allocated extent. | ||
161 | * | ||
162 | * This joins the item to the transaction and marks it dirty so | ||
163 | * that we don't need a separate call to do this, nor does the | ||
164 | * caller need to know anything about the icreate item. | ||
165 | */ | ||
166 | void | ||
167 | xfs_icreate_log( | ||
168 | struct xfs_trans *tp, | ||
169 | xfs_agnumber_t agno, | ||
170 | xfs_agblock_t agbno, | ||
171 | unsigned int count, | ||
172 | unsigned int inode_size, | ||
173 | xfs_agblock_t length, | ||
174 | unsigned int generation) | ||
175 | { | ||
176 | struct xfs_icreate_item *icp; | ||
177 | |||
178 | icp = kmem_zone_zalloc(xfs_icreate_zone, KM_SLEEP); | ||
179 | |||
180 | xfs_log_item_init(tp->t_mountp, &icp->ic_item, XFS_LI_ICREATE, | ||
181 | &xfs_icreate_item_ops); | ||
182 | |||
183 | icp->ic_format.icl_type = XFS_LI_ICREATE; | ||
184 | icp->ic_format.icl_size = 1; /* single vector */ | ||
185 | icp->ic_format.icl_ag = cpu_to_be32(agno); | ||
186 | icp->ic_format.icl_agbno = cpu_to_be32(agbno); | ||
187 | icp->ic_format.icl_count = cpu_to_be32(count); | ||
188 | icp->ic_format.icl_isize = cpu_to_be32(inode_size); | ||
189 | icp->ic_format.icl_length = cpu_to_be32(length); | ||
190 | icp->ic_format.icl_gen = cpu_to_be32(generation); | ||
191 | |||
192 | xfs_trans_add_item(tp, &icp->ic_item); | ||
193 | tp->t_flags |= XFS_TRANS_DIRTY; | ||
194 | icp->ic_item.li_desc->lid_flags |= XFS_LID_DIRTY; | ||
195 | } | ||