blob: d45ca72af6fbcbc6bb0d97a91b6467a930ace4a2 [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"
Christoph Hellwig4fb6e8a2014-11-28 14:25:04 +110021#include "xfs_format.h"
Dave Chinner239880e2013-10-23 10:50:10 +110022#include "xfs_log_format.h"
23#include "xfs_trans_resv.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100024#include "xfs_bit.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100025#include "xfs_mount.h"
Dave Chinner239880e2013-10-23 10:50:10 +110026#include "xfs_trans.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100027#include "xfs_trans_priv.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100028#include "xfs_error.h"
29#include "xfs_icreate_item.h"
Christoph Hellwig12343512013-12-13 11:00:43 +110030#include "xfs_log.h"
Dave Chinner3ebe7d22013-06-27 16:04:53 +100031
32kmem_zone_t *xfs_icreate_zone; /* inode create item zone */
33
34static inline struct xfs_icreate_item *ICR_ITEM(struct xfs_log_item *lip)
35{
36 return container_of(lip, struct xfs_icreate_item, ic_item);
37}
38
39/*
40 * This returns the number of iovecs needed to log the given inode item.
41 *
42 * We only need one iovec for the icreate log structure.
43 */
Dave Chinner166d1362013-08-12 20:50:04 +100044STATIC void
Dave Chinner3ebe7d22013-06-27 16:04:53 +100045xfs_icreate_item_size(
Dave Chinner166d1362013-08-12 20:50:04 +100046 struct xfs_log_item *lip,
47 int *nvecs,
48 int *nbytes)
Dave Chinner3ebe7d22013-06-27 16:04:53 +100049{
Dave Chinner166d1362013-08-12 20:50:04 +100050 *nvecs += 1;
51 *nbytes += sizeof(struct xfs_icreate_log);
Dave Chinner3ebe7d22013-06-27 16:04:53 +100052}
53
54/*
55 * This is called to fill in the vector of log iovecs for the
56 * given inode create log item.
57 */
58STATIC void
59xfs_icreate_item_format(
60 struct xfs_log_item *lip,
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110061 struct xfs_log_vec *lv)
Dave Chinner3ebe7d22013-06-27 16:04:53 +100062{
63 struct xfs_icreate_item *icp = ICR_ITEM(lip);
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110064 struct xfs_log_iovec *vecp = NULL;
Dave Chinner3ebe7d22013-06-27 16:04:53 +100065
Christoph Hellwigbde7cff2013-12-13 11:34:02 +110066 xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_ICREATE,
Christoph Hellwig12343512013-12-13 11:00:43 +110067 &icp->ic_format,
68 sizeof(struct xfs_icreate_log));
Dave Chinner3ebe7d22013-06-27 16:04:53 +100069}
70
71
72/* Pinning has no meaning for the create item, so just return. */
73STATIC void
74xfs_icreate_item_pin(
75 struct xfs_log_item *lip)
76{
77}
78
79
80/* pinning has no meaning for the create item, so just return. */
81STATIC void
82xfs_icreate_item_unpin(
83 struct xfs_log_item *lip,
84 int remove)
85{
86}
87
88STATIC void
89xfs_icreate_item_unlock(
90 struct xfs_log_item *lip)
91{
92 struct xfs_icreate_item *icp = ICR_ITEM(lip);
93
94 if (icp->ic_item.li_flags & XFS_LI_ABORTED)
95 kmem_zone_free(xfs_icreate_zone, icp);
96 return;
97}
98
99/*
100 * Because we have ordered buffers being tracked in the AIL for the inode
101 * creation, we don't need the create item after this. Hence we can free
102 * the log item and return -1 to tell the caller we're done with the item.
103 */
104STATIC xfs_lsn_t
105xfs_icreate_item_committed(
106 struct xfs_log_item *lip,
107 xfs_lsn_t lsn)
108{
109 struct xfs_icreate_item *icp = ICR_ITEM(lip);
110
111 kmem_zone_free(xfs_icreate_zone, icp);
112 return (xfs_lsn_t)-1;
113}
114
115/* item can never get into the AIL */
116STATIC uint
117xfs_icreate_item_push(
118 struct xfs_log_item *lip,
119 struct list_head *buffer_list)
120{
121 ASSERT(0);
122 return XFS_ITEM_SUCCESS;
123}
124
125/* Ordered buffers do the dependency tracking here, so this does nothing. */
126STATIC void
127xfs_icreate_item_committing(
128 struct xfs_log_item *lip,
129 xfs_lsn_t lsn)
130{
131}
132
133/*
134 * This is the ops vector shared by all buf log items.
135 */
136static struct xfs_item_ops xfs_icreate_item_ops = {
137 .iop_size = xfs_icreate_item_size,
138 .iop_format = xfs_icreate_item_format,
139 .iop_pin = xfs_icreate_item_pin,
140 .iop_unpin = xfs_icreate_item_unpin,
141 .iop_push = xfs_icreate_item_push,
142 .iop_unlock = xfs_icreate_item_unlock,
143 .iop_committed = xfs_icreate_item_committed,
144 .iop_committing = xfs_icreate_item_committing,
145};
146
147
148/*
149 * Initialize the inode log item for a newly allocated (in-core) inode.
150 *
151 * Inode extents can only reside within an AG. Hence specify the starting
152 * block for the inode chunk by offset within an AG as well as the
153 * length of the allocated extent.
154 *
155 * This joins the item to the transaction and marks it dirty so
156 * that we don't need a separate call to do this, nor does the
157 * caller need to know anything about the icreate item.
158 */
159void
160xfs_icreate_log(
161 struct xfs_trans *tp,
162 xfs_agnumber_t agno,
163 xfs_agblock_t agbno,
164 unsigned int count,
165 unsigned int inode_size,
166 xfs_agblock_t length,
167 unsigned int generation)
168{
169 struct xfs_icreate_item *icp;
170
171 icp = kmem_zone_zalloc(xfs_icreate_zone, KM_SLEEP);
172
173 xfs_log_item_init(tp->t_mountp, &icp->ic_item, XFS_LI_ICREATE,
174 &xfs_icreate_item_ops);
175
176 icp->ic_format.icl_type = XFS_LI_ICREATE;
177 icp->ic_format.icl_size = 1; /* single vector */
178 icp->ic_format.icl_ag = cpu_to_be32(agno);
179 icp->ic_format.icl_agbno = cpu_to_be32(agbno);
180 icp->ic_format.icl_count = cpu_to_be32(count);
181 icp->ic_format.icl_isize = cpu_to_be32(inode_size);
182 icp->ic_format.icl_length = cpu_to_be32(length);
183 icp->ic_format.icl_gen = cpu_to_be32(generation);
184
185 xfs_trans_add_item(tp, &icp->ic_item);
186 tp->t_flags |= XFS_TRANS_DIRTY;
187 icp->ic_item.li_desc->lid_flags |= XFS_LID_DIRTY;
188}