blob: 7e4549233251e06332f40fede7007574b92b4f9a [file] [log] [blame]
Dave Chinner3ebe7d22013-06-27 16:04:53 +10001/*
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"
Dave Chinner70a9883c2013-10-23 10:36:05 +110020#include "xfs_shared.h"
Dave Chinner239880e2013-10-23 10:50:10 +110021#include "xfs_log_format.h"
22#include "xfs_trans_resv.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100023#include "xfs_bit.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100024#include "xfs_sb.h"
25#include "xfs_ag.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100026#include "xfs_mount.h"
Dave Chinner239880e2013-10-23 10:50:10 +110027#include "xfs_trans.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100028#include "xfs_trans_priv.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100029#include "xfs_error.h"
30#include "xfs_icreate_item.h"
Christoph Hellwig12343512013-12-13 11:00:43 +110031#include "xfs_log.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100032
33kmem_zone_t *xfs_icreate_zone; /* inode create item zone */
34
35static inline struct xfs_icreate_item *ICR_ITEM(struct xfs_log_item *lip)
36{
37 return container_of(lip, struct xfs_icreate_item, ic_item);
38}
39
40/*
41 * This returns the number of iovecs needed to log the given inode item.
42 *
43 * We only need one iovec for the icreate log structure.
44 */
Dave Chinner166d1362013-08-12 20:50:04 +100045STATIC void
Dave Chinner3ebe7d22013-06-27 16:04:53 +100046xfs_icreate_item_size(
Dave Chinner166d1362013-08-12 20:50:04 +100047 struct xfs_log_item *lip,
48 int *nvecs,
49 int *nbytes)
Dave Chinner3ebe7d22013-06-27 16:04:53 +100050{
Dave Chinner166d1362013-08-12 20:50:04 +100051 *nvecs += 1;
52 *nbytes += sizeof(struct xfs_icreate_log);
Dave Chinner3ebe7d22013-06-27 16:04:53 +100053}
54
55/*
56 * This is called to fill in the vector of log iovecs for the
57 * given inode create log item.
58 */
59STATIC void
60xfs_icreate_item_format(
61 struct xfs_log_item *lip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110062 struct xfs_log_vec *lv)
Dave Chinner3ebe7d22013-06-27 16:04:53 +100063{
64 struct xfs_icreate_item *icp = ICR_ITEM(lip);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110065 struct xfs_log_iovec *vecp = NULL;
Dave Chinner3ebe7d22013-06-27 16:04:53 +100066
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110067 xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_ICREATE,
Christoph Hellwig12343512013-12-13 11:00:43 +110068 &icp->ic_format,
69 sizeof(struct xfs_icreate_log));
Dave Chinner3ebe7d22013-06-27 16:04:53 +100070}
71
72
73/* Pinning has no meaning for the create item, so just return. */
74STATIC void
75xfs_icreate_item_pin(
76 struct xfs_log_item *lip)
77{
78}
79
80
81/* pinning has no meaning for the create item, so just return. */
82STATIC void
83xfs_icreate_item_unpin(
84 struct xfs_log_item *lip,
85 int remove)
86{
87}
88
89STATIC void
90xfs_icreate_item_unlock(
91 struct xfs_log_item *lip)
92{
93 struct xfs_icreate_item *icp = ICR_ITEM(lip);
94
95 if (icp->ic_item.li_flags & XFS_LI_ABORTED)
96 kmem_zone_free(xfs_icreate_zone, icp);
97 return;
98}
99
100/*
101 * Because we have ordered buffers being tracked in the AIL for the inode
102 * creation, we don't need the create item after this. Hence we can free
103 * the log item and return -1 to tell the caller we're done with the item.
104 */
105STATIC xfs_lsn_t
106xfs_icreate_item_committed(
107 struct xfs_log_item *lip,
108 xfs_lsn_t lsn)
109{
110 struct xfs_icreate_item *icp = ICR_ITEM(lip);
111
112 kmem_zone_free(xfs_icreate_zone, icp);
113 return (xfs_lsn_t)-1;
114}
115
116/* item can never get into the AIL */
117STATIC uint
118xfs_icreate_item_push(
119 struct xfs_log_item *lip,
120 struct list_head *buffer_list)
121{
122 ASSERT(0);
123 return XFS_ITEM_SUCCESS;
124}
125
126/* Ordered buffers do the dependency tracking here, so this does nothing. */
127STATIC void
128xfs_icreate_item_committing(
129 struct xfs_log_item *lip,
130 xfs_lsn_t lsn)
131{
132}
133
134/*
135 * This is the ops vector shared by all buf log items.
136 */
137static struct xfs_item_ops xfs_icreate_item_ops = {
138 .iop_size = xfs_icreate_item_size,
139 .iop_format = xfs_icreate_item_format,
140 .iop_pin = xfs_icreate_item_pin,
141 .iop_unpin = xfs_icreate_item_unpin,
142 .iop_push = xfs_icreate_item_push,
143 .iop_unlock = xfs_icreate_item_unlock,
144 .iop_committed = xfs_icreate_item_committed,
145 .iop_committing = xfs_icreate_item_committing,
146};
147
148
149/*
150 * Initialize the inode log item for a newly allocated (in-core) inode.
151 *
152 * Inode extents can only reside within an AG. Hence specify the starting
153 * block for the inode chunk by offset within an AG as well as the
154 * length of the allocated extent.
155 *
156 * This joins the item to the transaction and marks it dirty so
157 * that we don't need a separate call to do this, nor does the
158 * caller need to know anything about the icreate item.
159 */
160void
161xfs_icreate_log(
162 struct xfs_trans *tp,
163 xfs_agnumber_t agno,
164 xfs_agblock_t agbno,
165 unsigned int count,
166 unsigned int inode_size,
167 xfs_agblock_t length,
168 unsigned int generation)
169{
170 struct xfs_icreate_item *icp;
171
172 icp = kmem_zone_zalloc(xfs_icreate_zone, KM_SLEEP);
173
174 xfs_log_item_init(tp->t_mountp, &icp->ic_item, XFS_LI_ICREATE,
175 &xfs_icreate_item_ops);
176
177 icp->ic_format.icl_type = XFS_LI_ICREATE;
178 icp->ic_format.icl_size = 1; /* single vector */
179 icp->ic_format.icl_ag = cpu_to_be32(agno);
180 icp->ic_format.icl_agbno = cpu_to_be32(agbno);
181 icp->ic_format.icl_count = cpu_to_be32(count);
182 icp->ic_format.icl_isize = cpu_to_be32(inode_size);
183 icp->ic_format.icl_length = cpu_to_be32(length);
184 icp->ic_format.icl_gen = cpu_to_be32(generation);
185
186 xfs_trans_add_item(tp, &icp->ic_item);
187 tp->t_flags |= XFS_TRANS_DIRTY;
188 icp->ic_item.li_desc->lid_flags |= XFS_LID_DIRTY;
189}