2 * Copyright (c) 2008-2010, 2013 Dave Chinner
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"
23 #include "xfs_trans.h"
26 #include "xfs_mount.h"
27 #include "xfs_trans_priv.h"
28 #include "xfs_error.h"
29 #include "xfs_icreate_item.h"
31 kmem_zone_t
*xfs_icreate_zone
; /* inode create item zone */
33 static inline struct xfs_icreate_item
*ICR_ITEM(struct xfs_log_item
*lip
)
35 return container_of(lip
, struct xfs_icreate_item
, ic_item
);
39 * This returns the number of iovecs needed to log the given inode item.
41 * We only need one iovec for the icreate log structure.
44 xfs_icreate_item_size(
45 struct xfs_log_item
*lip
)
51 * This is called to fill in the vector of log iovecs for the
52 * given inode create log item.
55 xfs_icreate_item_format(
56 struct xfs_log_item
*lip
,
57 struct xfs_log_iovec
*log_vector
)
59 struct xfs_icreate_item
*icp
= ICR_ITEM(lip
);
61 log_vector
->i_addr
= (xfs_caddr_t
)&icp
->ic_format
;
62 log_vector
->i_len
= sizeof(struct xfs_icreate_log
);
63 log_vector
->i_type
= XLOG_REG_TYPE_ICREATE
;
67 /* Pinning has no meaning for the create item, so just return. */
70 struct xfs_log_item
*lip
)
75 /* pinning has no meaning for the create item, so just return. */
77 xfs_icreate_item_unpin(
78 struct xfs_log_item
*lip
,
84 xfs_icreate_item_unlock(
85 struct xfs_log_item
*lip
)
87 struct xfs_icreate_item
*icp
= ICR_ITEM(lip
);
89 if (icp
->ic_item
.li_flags
& XFS_LI_ABORTED
)
90 kmem_zone_free(xfs_icreate_zone
, icp
);
95 * Because we have ordered buffers being tracked in the AIL for the inode
96 * creation, we don't need the create item after this. Hence we can free
97 * the log item and return -1 to tell the caller we're done with the item.
100 xfs_icreate_item_committed(
101 struct xfs_log_item
*lip
,
104 struct xfs_icreate_item
*icp
= ICR_ITEM(lip
);
106 kmem_zone_free(xfs_icreate_zone
, icp
);
107 return (xfs_lsn_t
)-1;
110 /* item can never get into the AIL */
112 xfs_icreate_item_push(
113 struct xfs_log_item
*lip
,
114 struct list_head
*buffer_list
)
117 return XFS_ITEM_SUCCESS
;
120 /* Ordered buffers do the dependency tracking here, so this does nothing. */
122 xfs_icreate_item_committing(
123 struct xfs_log_item
*lip
,
129 * This is the ops vector shared by all buf log items.
131 static struct xfs_item_ops xfs_icreate_item_ops
= {
132 .iop_size
= xfs_icreate_item_size
,
133 .iop_format
= xfs_icreate_item_format
,
134 .iop_pin
= xfs_icreate_item_pin
,
135 .iop_unpin
= xfs_icreate_item_unpin
,
136 .iop_push
= xfs_icreate_item_push
,
137 .iop_unlock
= xfs_icreate_item_unlock
,
138 .iop_committed
= xfs_icreate_item_committed
,
139 .iop_committing
= xfs_icreate_item_committing
,
144 * Initialize the inode log item for a newly allocated (in-core) inode.
146 * Inode extents can only reside within an AG. Hence specify the starting
147 * block for the inode chunk by offset within an AG as well as the
148 * length of the allocated extent.
150 * This joins the item to the transaction and marks it dirty so
151 * that we don't need a separate call to do this, nor does the
152 * caller need to know anything about the icreate item.
156 struct xfs_trans
*tp
,
160 unsigned int inode_size
,
161 xfs_agblock_t length
,
162 unsigned int generation
)
164 struct xfs_icreate_item
*icp
;
166 icp
= kmem_zone_zalloc(xfs_icreate_zone
, KM_SLEEP
);
168 xfs_log_item_init(tp
->t_mountp
, &icp
->ic_item
, XFS_LI_ICREATE
,
169 &xfs_icreate_item_ops
);
171 icp
->ic_format
.icl_type
= XFS_LI_ICREATE
;
172 icp
->ic_format
.icl_size
= 1; /* single vector */
173 icp
->ic_format
.icl_ag
= cpu_to_be32(agno
);
174 icp
->ic_format
.icl_agbno
= cpu_to_be32(agbno
);
175 icp
->ic_format
.icl_count
= cpu_to_be32(count
);
176 icp
->ic_format
.icl_isize
= cpu_to_be32(inode_size
);
177 icp
->ic_format
.icl_length
= cpu_to_be32(length
);
178 icp
->ic_format
.icl_gen
= cpu_to_be32(generation
);
180 xfs_trans_add_item(tp
, &icp
->ic_item
);
181 tp
->t_flags
|= XFS_TRANS_DIRTY
;
182 icp
->ic_item
.li_desc
->lid_flags
|= XFS_LID_DIRTY
;