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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2008-2010, 2013 Dave Chinner
* All Rights Reserved.
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_shared.h"
#include "xfs_log_format.h"
#include "xfs_trans.h"
#include "xfs_trans_priv.h"
#include "xfs_icreate_item.h"
#include "xfs_log.h"
#include "xfs_log_priv.h"
#include "xfs_log_recover.h"
kmem_zone_t *xfs_icreate_zone; /* inode create item zone */
static inline struct xfs_icreate_item *ICR_ITEM(struct xfs_log_item *lip)
{
return container_of(lip, struct xfs_icreate_item, ic_item);
}
/*
* This returns the number of iovecs needed to log the given inode item.
*
* We only need one iovec for the icreate log structure.
*/
STATIC void
xfs_icreate_item_size(
struct xfs_log_item *lip,
int *nvecs,
int *nbytes)
{
*nvecs += 1;
*nbytes += sizeof(struct xfs_icreate_log);
}
/*
* This is called to fill in the vector of log iovecs for the
* given inode create log item.
*/
STATIC void
xfs_icreate_item_format(
struct xfs_log_item *lip,
struct xfs_log_vec *lv)
{
struct xfs_icreate_item *icp = ICR_ITEM(lip);
struct xfs_log_iovec *vecp = NULL;
xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_ICREATE,
&icp->ic_format,
sizeof(struct xfs_icreate_log));
}
STATIC void
xfs_icreate_item_release(
struct xfs_log_item *lip)
{
kmem_cache_free(xfs_icreate_zone, ICR_ITEM(lip));
}
static const struct xfs_item_ops xfs_icreate_item_ops = {
.flags = XFS_ITEM_RELEASE_WHEN_COMMITTED,
.iop_size = xfs_icreate_item_size,
.iop_format = xfs_icreate_item_format,
.iop_release = xfs_icreate_item_release,
};
/*
* Initialize the inode log item for a newly allocated (in-core) inode.
*
* Inode extents can only reside within an AG. Hence specify the starting
* block for the inode chunk by offset within an AG as well as the
* length of the allocated extent.
*
* This joins the item to the transaction and marks it dirty so
* that we don't need a separate call to do this, nor does the
* caller need to know anything about the icreate item.
*/
void
xfs_icreate_log(
struct xfs_trans *tp,
xfs_agnumber_t agno,
xfs_agblock_t agbno,
unsigned int count,
unsigned int inode_size,
xfs_agblock_t length,
unsigned int generation)
{
struct xfs_icreate_item *icp;
icp = kmem_zone_zalloc(xfs_icreate_zone, 0);
xfs_log_item_init(tp->t_mountp, &icp->ic_item, XFS_LI_ICREATE,
&xfs_icreate_item_ops);
icp->ic_format.icl_type = XFS_LI_ICREATE;
icp->ic_format.icl_size = 1; /* single vector */
icp->ic_format.icl_ag = cpu_to_be32(agno);
icp->ic_format.icl_agbno = cpu_to_be32(agbno);
icp->ic_format.icl_count = cpu_to_be32(count);
icp->ic_format.icl_isize = cpu_to_be32(inode_size);
icp->ic_format.icl_length = cpu_to_be32(length);
icp->ic_format.icl_gen = cpu_to_be32(generation);
xfs_trans_add_item(tp, &icp->ic_item);
tp->t_flags |= XFS_TRANS_DIRTY;
set_bit(XFS_LI_DIRTY, &icp->ic_item.li_flags);
}
static enum xlog_recover_reorder
xlog_recover_icreate_reorder(
struct xlog_recover_item *item)
{
/*
* Inode allocation buffers must be replayed before subsequent inode
* items try to modify those buffers. ICREATE items are the logical
* equivalent of logging a newly initialized inode buffer, so recover
* these at the same time that we recover logged buffers.
*/
return XLOG_REORDER_BUFFER_LIST;
}
const struct xlog_recover_item_ops xlog_icreate_item_ops = {
.item_type = XFS_LI_ICREATE,
.reorder = xlog_recover_icreate_reorder,
};
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