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;