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43059d5416
If we try to recover a log intent item and the operation fails due to filesystem corruption, dump the contents of the item to the log for further analysis. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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,
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.finish_cleanup = xfs_rmap_finish_one_cleanup,
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.cancel_item = xfs_rmap_update_cancel_item,
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};
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/* Is this recovered RUI ok? */
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static inline bool
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xfs_rui_validate_map(
|
|
struct xfs_mount *mp,
|
|
struct xfs_map_extent *rmap)
|
|
{
|
|
if (!xfs_sb_version_hasrmapbt(&mp->m_sb))
|
|
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, NULL, 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,
|
|
};
|