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When log recovery tries to recover a transaction that had log intent items attached to it, it has to save certain parts of the transaction state (reservation, dfops chain, inodes with no automatic unlock) so that it can finish single-stepping the recovered transactions before finishing the chains. This is done with the xfs_defer_ops_capture and xfs_defer_ops_continue functions. Right now they open-code this functionality, so let's port this to the formalized resource capture structure that we introduced in the previous patch. This enables us to hold up to two inodes and two buffers during log recovery, the same way we do for regular runtime. With this patch applied, we'll be ready to support atomic extent swap which holds two inodes; and logged xattrs which holds one inode and one xattr leaf buffer. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
711 lines
19 KiB
C
711 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_format.h"
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#include "xfs_log_format.h"
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#include "xfs_trans_resv.h"
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#include "xfs_bit.h"
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#include "xfs_shared.h"
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#include "xfs_mount.h"
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#include "xfs_defer.h"
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#include "xfs_trans.h"
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#include "xfs_trans_priv.h"
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#include "xfs_rmap_item.h"
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#include "xfs_log.h"
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#include "xfs_rmap.h"
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#include "xfs_error.h"
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#include "xfs_log_priv.h"
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#include "xfs_log_recover.h"
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kmem_zone_t *xfs_rui_zone;
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kmem_zone_t *xfs_rud_zone;
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static const struct xfs_item_ops xfs_rui_item_ops;
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static inline struct xfs_rui_log_item *RUI_ITEM(struct xfs_log_item *lip)
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{
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return container_of(lip, struct xfs_rui_log_item, rui_item);
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}
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STATIC void
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xfs_rui_item_free(
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struct xfs_rui_log_item *ruip)
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{
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if (ruip->rui_format.rui_nextents > XFS_RUI_MAX_FAST_EXTENTS)
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kmem_free(ruip);
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else
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kmem_cache_free(xfs_rui_zone, ruip);
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}
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/*
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* Freeing the RUI requires that we remove it from the AIL if it has already
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* been placed there. However, the RUI may not yet have been placed in the AIL
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* when called by xfs_rui_release() from RUD processing due to the ordering of
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* committed vs unpin operations in bulk insert operations. Hence the reference
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* count to ensure only the last caller frees the RUI.
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*/
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STATIC void
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xfs_rui_release(
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struct xfs_rui_log_item *ruip)
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{
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ASSERT(atomic_read(&ruip->rui_refcount) > 0);
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if (atomic_dec_and_test(&ruip->rui_refcount)) {
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xfs_trans_ail_delete(&ruip->rui_item, SHUTDOWN_LOG_IO_ERROR);
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xfs_rui_item_free(ruip);
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}
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}
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STATIC void
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xfs_rui_item_size(
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struct xfs_log_item *lip,
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int *nvecs,
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int *nbytes)
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{
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struct xfs_rui_log_item *ruip = RUI_ITEM(lip);
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*nvecs += 1;
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*nbytes += xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents);
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}
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/*
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* This is called to fill in the vector of log iovecs for the
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* given rui log item. We use only 1 iovec, and we point that
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* at the rui_log_format structure embedded in the rui item.
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* It is at this point that we assert that all of the extent
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* slots in the rui item have been filled.
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*/
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STATIC void
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xfs_rui_item_format(
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struct xfs_log_item *lip,
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struct xfs_log_vec *lv)
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{
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struct xfs_rui_log_item *ruip = RUI_ITEM(lip);
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struct xfs_log_iovec *vecp = NULL;
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ASSERT(atomic_read(&ruip->rui_next_extent) ==
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ruip->rui_format.rui_nextents);
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ruip->rui_format.rui_type = XFS_LI_RUI;
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ruip->rui_format.rui_size = 1;
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xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUI_FORMAT, &ruip->rui_format,
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xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents));
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}
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/*
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* The unpin operation is the last place an RUI is manipulated in the log. It is
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* either inserted in the AIL or aborted in the event of a log I/O error. In
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* either case, the RUI transaction has been successfully committed to make it
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* this far. Therefore, we expect whoever committed the RUI to either construct
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* and commit the RUD or drop the RUD's reference in the event of error. Simply
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* drop the log's RUI reference now that the log is done with it.
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*/
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STATIC void
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xfs_rui_item_unpin(
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struct xfs_log_item *lip,
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int remove)
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{
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struct xfs_rui_log_item *ruip = RUI_ITEM(lip);
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xfs_rui_release(ruip);
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}
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/*
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* The RUI has been either committed or aborted if the transaction has been
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* cancelled. If the transaction was cancelled, an RUD isn't going to be
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* constructed and thus we free the RUI here directly.
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*/
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STATIC void
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xfs_rui_item_release(
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struct xfs_log_item *lip)
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{
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xfs_rui_release(RUI_ITEM(lip));
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}
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/*
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* Allocate and initialize an rui item with the given number of extents.
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*/
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STATIC struct xfs_rui_log_item *
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xfs_rui_init(
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struct xfs_mount *mp,
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uint nextents)
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{
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struct xfs_rui_log_item *ruip;
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ASSERT(nextents > 0);
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if (nextents > XFS_RUI_MAX_FAST_EXTENTS)
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ruip = kmem_zalloc(xfs_rui_log_item_sizeof(nextents), 0);
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else
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ruip = kmem_cache_zalloc(xfs_rui_zone,
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GFP_KERNEL | __GFP_NOFAIL);
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xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops);
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ruip->rui_format.rui_nextents = nextents;
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ruip->rui_format.rui_id = (uintptr_t)(void *)ruip;
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atomic_set(&ruip->rui_next_extent, 0);
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atomic_set(&ruip->rui_refcount, 2);
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return ruip;
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}
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/*
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* Copy an RUI format buffer from the given buf, and into the destination
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* RUI format structure. The RUI/RUD items were designed not to need any
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* special alignment handling.
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*/
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STATIC int
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xfs_rui_copy_format(
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struct xfs_log_iovec *buf,
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struct xfs_rui_log_format *dst_rui_fmt)
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{
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struct xfs_rui_log_format *src_rui_fmt;
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uint len;
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src_rui_fmt = buf->i_addr;
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len = xfs_rui_log_format_sizeof(src_rui_fmt->rui_nextents);
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if (buf->i_len != len) {
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XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL);
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return -EFSCORRUPTED;
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}
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memcpy(dst_rui_fmt, src_rui_fmt, len);
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return 0;
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}
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static inline struct xfs_rud_log_item *RUD_ITEM(struct xfs_log_item *lip)
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{
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return container_of(lip, struct xfs_rud_log_item, rud_item);
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}
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STATIC void
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xfs_rud_item_size(
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struct xfs_log_item *lip,
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int *nvecs,
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int *nbytes)
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{
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*nvecs += 1;
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*nbytes += sizeof(struct xfs_rud_log_format);
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}
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/*
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* This is called to fill in the vector of log iovecs for the
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* given rud log item. We use only 1 iovec, and we point that
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* at the rud_log_format structure embedded in the rud item.
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* It is at this point that we assert that all of the extent
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* slots in the rud item have been filled.
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*/
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STATIC void
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xfs_rud_item_format(
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struct xfs_log_item *lip,
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struct xfs_log_vec *lv)
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{
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struct xfs_rud_log_item *rudp = RUD_ITEM(lip);
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struct xfs_log_iovec *vecp = NULL;
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rudp->rud_format.rud_type = XFS_LI_RUD;
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rudp->rud_format.rud_size = 1;
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xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUD_FORMAT, &rudp->rud_format,
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sizeof(struct xfs_rud_log_format));
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}
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/*
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* The RUD is either committed or aborted if the transaction is cancelled. If
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* the transaction is cancelled, drop our reference to the RUI and free the
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* RUD.
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*/
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STATIC void
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xfs_rud_item_release(
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struct xfs_log_item *lip)
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{
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struct xfs_rud_log_item *rudp = RUD_ITEM(lip);
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xfs_rui_release(rudp->rud_ruip);
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kmem_cache_free(xfs_rud_zone, rudp);
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}
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static const struct xfs_item_ops xfs_rud_item_ops = {
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.flags = XFS_ITEM_RELEASE_WHEN_COMMITTED,
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.iop_size = xfs_rud_item_size,
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.iop_format = xfs_rud_item_format,
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.iop_release = xfs_rud_item_release,
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};
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static struct xfs_rud_log_item *
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xfs_trans_get_rud(
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struct xfs_trans *tp,
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struct xfs_rui_log_item *ruip)
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{
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struct xfs_rud_log_item *rudp;
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rudp = kmem_cache_zalloc(xfs_rud_zone, GFP_KERNEL | __GFP_NOFAIL);
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xfs_log_item_init(tp->t_mountp, &rudp->rud_item, XFS_LI_RUD,
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&xfs_rud_item_ops);
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rudp->rud_ruip = ruip;
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rudp->rud_format.rud_rui_id = ruip->rui_format.rui_id;
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xfs_trans_add_item(tp, &rudp->rud_item);
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return rudp;
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}
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/* Set the map extent flags for this reverse mapping. */
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static void
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xfs_trans_set_rmap_flags(
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struct xfs_map_extent *rmap,
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enum xfs_rmap_intent_type type,
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int whichfork,
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xfs_exntst_t state)
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{
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rmap->me_flags = 0;
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if (state == XFS_EXT_UNWRITTEN)
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rmap->me_flags |= XFS_RMAP_EXTENT_UNWRITTEN;
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if (whichfork == XFS_ATTR_FORK)
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rmap->me_flags |= XFS_RMAP_EXTENT_ATTR_FORK;
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switch (type) {
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case XFS_RMAP_MAP:
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rmap->me_flags |= XFS_RMAP_EXTENT_MAP;
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break;
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case XFS_RMAP_MAP_SHARED:
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rmap->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED;
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break;
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case XFS_RMAP_UNMAP:
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rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP;
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break;
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case XFS_RMAP_UNMAP_SHARED:
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rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED;
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break;
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case XFS_RMAP_CONVERT:
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rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT;
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break;
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case XFS_RMAP_CONVERT_SHARED:
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rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED;
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break;
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case XFS_RMAP_ALLOC:
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rmap->me_flags |= XFS_RMAP_EXTENT_ALLOC;
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break;
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case XFS_RMAP_FREE:
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rmap->me_flags |= XFS_RMAP_EXTENT_FREE;
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break;
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default:
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ASSERT(0);
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}
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}
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/*
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* Finish an rmap update and log it to the RUD. Note that the transaction is
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* marked dirty regardless of whether the rmap update succeeds or fails to
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* support the RUI/RUD lifecycle rules.
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*/
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static int
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xfs_trans_log_finish_rmap_update(
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struct xfs_trans *tp,
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struct xfs_rud_log_item *rudp,
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enum xfs_rmap_intent_type type,
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uint64_t owner,
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int whichfork,
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xfs_fileoff_t startoff,
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xfs_fsblock_t startblock,
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xfs_filblks_t blockcount,
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xfs_exntst_t state,
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struct xfs_btree_cur **pcur)
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{
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int error;
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error = xfs_rmap_finish_one(tp, type, owner, whichfork, startoff,
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startblock, blockcount, state, pcur);
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/*
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* Mark the transaction dirty, even on error. This ensures the
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* transaction is aborted, which:
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*
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* 1.) releases the RUI and frees the RUD
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* 2.) shuts down the filesystem
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*/
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tp->t_flags |= XFS_TRANS_DIRTY;
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set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags);
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return error;
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}
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/* Sort rmap intents by AG. */
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static int
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xfs_rmap_update_diff_items(
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void *priv,
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const struct list_head *a,
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const struct list_head *b)
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{
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struct xfs_mount *mp = priv;
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struct xfs_rmap_intent *ra;
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struct xfs_rmap_intent *rb;
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ra = container_of(a, struct xfs_rmap_intent, ri_list);
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rb = container_of(b, struct xfs_rmap_intent, ri_list);
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return XFS_FSB_TO_AGNO(mp, ra->ri_bmap.br_startblock) -
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XFS_FSB_TO_AGNO(mp, rb->ri_bmap.br_startblock);
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}
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/* Log rmap updates in the intent item. */
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STATIC void
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xfs_rmap_update_log_item(
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struct xfs_trans *tp,
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struct xfs_rui_log_item *ruip,
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struct xfs_rmap_intent *rmap)
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{
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uint next_extent;
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struct xfs_map_extent *map;
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tp->t_flags |= XFS_TRANS_DIRTY;
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set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags);
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/*
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* atomic_inc_return gives us the value after the increment;
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* we want to use it as an array index so we need to subtract 1 from
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* it.
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*/
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next_extent = atomic_inc_return(&ruip->rui_next_extent) - 1;
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ASSERT(next_extent < ruip->rui_format.rui_nextents);
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map = &ruip->rui_format.rui_extents[next_extent];
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map->me_owner = rmap->ri_owner;
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map->me_startblock = rmap->ri_bmap.br_startblock;
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map->me_startoff = rmap->ri_bmap.br_startoff;
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map->me_len = rmap->ri_bmap.br_blockcount;
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xfs_trans_set_rmap_flags(map, rmap->ri_type, rmap->ri_whichfork,
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rmap->ri_bmap.br_state);
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}
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static struct xfs_log_item *
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xfs_rmap_update_create_intent(
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struct xfs_trans *tp,
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struct list_head *items,
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unsigned int count,
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bool sort)
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{
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struct xfs_mount *mp = tp->t_mountp;
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struct xfs_rui_log_item *ruip = xfs_rui_init(mp, count);
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struct xfs_rmap_intent *rmap;
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ASSERT(count > 0);
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xfs_trans_add_item(tp, &ruip->rui_item);
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if (sort)
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list_sort(mp, items, xfs_rmap_update_diff_items);
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list_for_each_entry(rmap, items, ri_list)
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xfs_rmap_update_log_item(tp, ruip, rmap);
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return &ruip->rui_item;
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}
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/* Get an RUD so we can process all the deferred rmap updates. */
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static struct xfs_log_item *
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xfs_rmap_update_create_done(
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struct xfs_trans *tp,
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struct xfs_log_item *intent,
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unsigned int count)
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{
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return &xfs_trans_get_rud(tp, RUI_ITEM(intent))->rud_item;
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}
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/* Process a deferred rmap update. */
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STATIC int
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xfs_rmap_update_finish_item(
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struct xfs_trans *tp,
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struct xfs_log_item *done,
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struct list_head *item,
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struct xfs_btree_cur **state)
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{
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struct xfs_rmap_intent *rmap;
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int error;
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rmap = container_of(item, struct xfs_rmap_intent, ri_list);
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error = xfs_trans_log_finish_rmap_update(tp, RUD_ITEM(done),
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rmap->ri_type, rmap->ri_owner, rmap->ri_whichfork,
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rmap->ri_bmap.br_startoff, rmap->ri_bmap.br_startblock,
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rmap->ri_bmap.br_blockcount, rmap->ri_bmap.br_state,
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state);
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kmem_free(rmap);
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return error;
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}
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/* Abort all pending RUIs. */
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STATIC void
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xfs_rmap_update_abort_intent(
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struct xfs_log_item *intent)
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{
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xfs_rui_release(RUI_ITEM(intent));
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}
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/* Cancel a deferred rmap update. */
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STATIC void
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xfs_rmap_update_cancel_item(
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struct list_head *item)
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{
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struct xfs_rmap_intent *rmap;
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rmap = container_of(item, struct xfs_rmap_intent, ri_list);
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kmem_free(rmap);
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}
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const struct xfs_defer_op_type xfs_rmap_update_defer_type = {
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.max_items = XFS_RUI_MAX_FAST_EXTENTS,
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.create_intent = xfs_rmap_update_create_intent,
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.abort_intent = xfs_rmap_update_abort_intent,
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.create_done = xfs_rmap_update_create_done,
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.finish_item = xfs_rmap_update_finish_item,
|
|
.finish_cleanup = xfs_rmap_finish_one_cleanup,
|
|
.cancel_item = xfs_rmap_update_cancel_item,
|
|
};
|
|
|
|
/* Is this recovered RUI ok? */
|
|
static inline bool
|
|
xfs_rui_validate_map(
|
|
struct xfs_mount *mp,
|
|
struct xfs_map_extent *rmap)
|
|
{
|
|
if (!xfs_has_rmapbt(mp))
|
|
return false;
|
|
|
|
if (rmap->me_flags & ~XFS_RMAP_EXTENT_FLAGS)
|
|
return false;
|
|
|
|
switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) {
|
|
case XFS_RMAP_EXTENT_MAP:
|
|
case XFS_RMAP_EXTENT_MAP_SHARED:
|
|
case XFS_RMAP_EXTENT_UNMAP:
|
|
case XFS_RMAP_EXTENT_UNMAP_SHARED:
|
|
case XFS_RMAP_EXTENT_CONVERT:
|
|
case XFS_RMAP_EXTENT_CONVERT_SHARED:
|
|
case XFS_RMAP_EXTENT_ALLOC:
|
|
case XFS_RMAP_EXTENT_FREE:
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
if (!XFS_RMAP_NON_INODE_OWNER(rmap->me_owner) &&
|
|
!xfs_verify_ino(mp, rmap->me_owner))
|
|
return false;
|
|
|
|
if (!xfs_verify_fileext(mp, rmap->me_startoff, rmap->me_len))
|
|
return false;
|
|
|
|
return xfs_verify_fsbext(mp, rmap->me_startblock, rmap->me_len);
|
|
}
|
|
|
|
/*
|
|
* Process an rmap update intent item that was recovered from the log.
|
|
* We need to update the rmapbt.
|
|
*/
|
|
STATIC int
|
|
xfs_rui_item_recover(
|
|
struct xfs_log_item *lip,
|
|
struct list_head *capture_list)
|
|
{
|
|
struct xfs_rui_log_item *ruip = RUI_ITEM(lip);
|
|
struct xfs_map_extent *rmap;
|
|
struct xfs_rud_log_item *rudp;
|
|
struct xfs_trans *tp;
|
|
struct xfs_btree_cur *rcur = NULL;
|
|
struct xfs_mount *mp = lip->li_mountp;
|
|
enum xfs_rmap_intent_type type;
|
|
xfs_exntst_t state;
|
|
int i;
|
|
int whichfork;
|
|
int error = 0;
|
|
|
|
/*
|
|
* First check the validity of the extents described by the
|
|
* RUI. If any are bad, then assume that all are bad and
|
|
* just toss the RUI.
|
|
*/
|
|
for (i = 0; i < ruip->rui_format.rui_nextents; i++) {
|
|
if (!xfs_rui_validate_map(mp,
|
|
&ruip->rui_format.rui_extents[i])) {
|
|
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
|
|
&ruip->rui_format,
|
|
sizeof(ruip->rui_format));
|
|
return -EFSCORRUPTED;
|
|
}
|
|
}
|
|
|
|
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate,
|
|
mp->m_rmap_maxlevels, 0, XFS_TRANS_RESERVE, &tp);
|
|
if (error)
|
|
return error;
|
|
rudp = xfs_trans_get_rud(tp, ruip);
|
|
|
|
for (i = 0; i < ruip->rui_format.rui_nextents; i++) {
|
|
rmap = &ruip->rui_format.rui_extents[i];
|
|
state = (rmap->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ?
|
|
XFS_EXT_UNWRITTEN : XFS_EXT_NORM;
|
|
whichfork = (rmap->me_flags & XFS_RMAP_EXTENT_ATTR_FORK) ?
|
|
XFS_ATTR_FORK : XFS_DATA_FORK;
|
|
switch (rmap->me_flags & XFS_RMAP_EXTENT_TYPE_MASK) {
|
|
case XFS_RMAP_EXTENT_MAP:
|
|
type = XFS_RMAP_MAP;
|
|
break;
|
|
case XFS_RMAP_EXTENT_MAP_SHARED:
|
|
type = XFS_RMAP_MAP_SHARED;
|
|
break;
|
|
case XFS_RMAP_EXTENT_UNMAP:
|
|
type = XFS_RMAP_UNMAP;
|
|
break;
|
|
case XFS_RMAP_EXTENT_UNMAP_SHARED:
|
|
type = XFS_RMAP_UNMAP_SHARED;
|
|
break;
|
|
case XFS_RMAP_EXTENT_CONVERT:
|
|
type = XFS_RMAP_CONVERT;
|
|
break;
|
|
case XFS_RMAP_EXTENT_CONVERT_SHARED:
|
|
type = XFS_RMAP_CONVERT_SHARED;
|
|
break;
|
|
case XFS_RMAP_EXTENT_ALLOC:
|
|
type = XFS_RMAP_ALLOC;
|
|
break;
|
|
case XFS_RMAP_EXTENT_FREE:
|
|
type = XFS_RMAP_FREE;
|
|
break;
|
|
default:
|
|
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL);
|
|
error = -EFSCORRUPTED;
|
|
goto abort_error;
|
|
}
|
|
error = xfs_trans_log_finish_rmap_update(tp, rudp, type,
|
|
rmap->me_owner, whichfork,
|
|
rmap->me_startoff, rmap->me_startblock,
|
|
rmap->me_len, state, &rcur);
|
|
if (error == -EFSCORRUPTED)
|
|
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
|
|
rmap, sizeof(*rmap));
|
|
if (error)
|
|
goto abort_error;
|
|
|
|
}
|
|
|
|
xfs_rmap_finish_one_cleanup(tp, rcur, error);
|
|
return xfs_defer_ops_capture_and_commit(tp, capture_list);
|
|
|
|
abort_error:
|
|
xfs_rmap_finish_one_cleanup(tp, rcur, error);
|
|
xfs_trans_cancel(tp);
|
|
return error;
|
|
}
|
|
|
|
STATIC bool
|
|
xfs_rui_item_match(
|
|
struct xfs_log_item *lip,
|
|
uint64_t intent_id)
|
|
{
|
|
return RUI_ITEM(lip)->rui_format.rui_id == intent_id;
|
|
}
|
|
|
|
/* Relog an intent item to push the log tail forward. */
|
|
static struct xfs_log_item *
|
|
xfs_rui_item_relog(
|
|
struct xfs_log_item *intent,
|
|
struct xfs_trans *tp)
|
|
{
|
|
struct xfs_rud_log_item *rudp;
|
|
struct xfs_rui_log_item *ruip;
|
|
struct xfs_map_extent *extp;
|
|
unsigned int count;
|
|
|
|
count = RUI_ITEM(intent)->rui_format.rui_nextents;
|
|
extp = RUI_ITEM(intent)->rui_format.rui_extents;
|
|
|
|
tp->t_flags |= XFS_TRANS_DIRTY;
|
|
rudp = xfs_trans_get_rud(tp, RUI_ITEM(intent));
|
|
set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags);
|
|
|
|
ruip = xfs_rui_init(tp->t_mountp, count);
|
|
memcpy(ruip->rui_format.rui_extents, extp, count * sizeof(*extp));
|
|
atomic_set(&ruip->rui_next_extent, count);
|
|
xfs_trans_add_item(tp, &ruip->rui_item);
|
|
set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags);
|
|
return &ruip->rui_item;
|
|
}
|
|
|
|
static const struct xfs_item_ops xfs_rui_item_ops = {
|
|
.iop_size = xfs_rui_item_size,
|
|
.iop_format = xfs_rui_item_format,
|
|
.iop_unpin = xfs_rui_item_unpin,
|
|
.iop_release = xfs_rui_item_release,
|
|
.iop_recover = xfs_rui_item_recover,
|
|
.iop_match = xfs_rui_item_match,
|
|
.iop_relog = xfs_rui_item_relog,
|
|
};
|
|
|
|
/*
|
|
* This routine is called to create an in-core extent rmap update
|
|
* item from the rui format structure which was logged on disk.
|
|
* It allocates an in-core rui, copies the extents from the format
|
|
* structure into it, and adds the rui to the AIL with the given
|
|
* LSN.
|
|
*/
|
|
STATIC int
|
|
xlog_recover_rui_commit_pass2(
|
|
struct xlog *log,
|
|
struct list_head *buffer_list,
|
|
struct xlog_recover_item *item,
|
|
xfs_lsn_t lsn)
|
|
{
|
|
int error;
|
|
struct xfs_mount *mp = log->l_mp;
|
|
struct xfs_rui_log_item *ruip;
|
|
struct xfs_rui_log_format *rui_formatp;
|
|
|
|
rui_formatp = item->ri_buf[0].i_addr;
|
|
|
|
ruip = xfs_rui_init(mp, rui_formatp->rui_nextents);
|
|
error = xfs_rui_copy_format(&item->ri_buf[0], &ruip->rui_format);
|
|
if (error) {
|
|
xfs_rui_item_free(ruip);
|
|
return error;
|
|
}
|
|
atomic_set(&ruip->rui_next_extent, rui_formatp->rui_nextents);
|
|
/*
|
|
* Insert the intent into the AIL directly and drop one reference so
|
|
* that finishing or canceling the work will drop the other.
|
|
*/
|
|
xfs_trans_ail_insert(log->l_ailp, &ruip->rui_item, lsn);
|
|
xfs_rui_release(ruip);
|
|
return 0;
|
|
}
|
|
|
|
const struct xlog_recover_item_ops xlog_rui_item_ops = {
|
|
.item_type = XFS_LI_RUI,
|
|
.commit_pass2 = xlog_recover_rui_commit_pass2,
|
|
};
|
|
|
|
/*
|
|
* This routine is called when an RUD format structure is found in a committed
|
|
* transaction in the log. Its purpose is to cancel the corresponding RUI if it
|
|
* was still in the log. To do this it searches the AIL for the RUI with an id
|
|
* equal to that in the RUD format structure. If we find it we drop the RUD
|
|
* reference, which removes the RUI from the AIL and frees it.
|
|
*/
|
|
STATIC int
|
|
xlog_recover_rud_commit_pass2(
|
|
struct xlog *log,
|
|
struct list_head *buffer_list,
|
|
struct xlog_recover_item *item,
|
|
xfs_lsn_t lsn)
|
|
{
|
|
struct xfs_rud_log_format *rud_formatp;
|
|
|
|
rud_formatp = item->ri_buf[0].i_addr;
|
|
ASSERT(item->ri_buf[0].i_len == sizeof(struct xfs_rud_log_format));
|
|
|
|
xlog_recover_release_intent(log, XFS_LI_RUI, rud_formatp->rud_rui_id);
|
|
return 0;
|
|
}
|
|
|
|
const struct xlog_recover_item_ops xlog_rud_item_ops = {
|
|
.item_type = XFS_LI_RUD,
|
|
.commit_pass2 = xlog_recover_rud_commit_pass2,
|
|
};
|