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xfs: use internal dfops during [b|c]ui recovery

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bmap and refcount intent processing associates a dfops from the
caller with a local transaction to collect all deferred items for
post-processing. Use the internal dfops in both of these functions
and move the deferred items to the parent dfops before the
transaction commits.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Brian Foster 2018-07-24 13:43:13 -07:00 committed by Darrick J. Wong
parent 9c6bb0cf7b
commit 91ef75b657
3 changed files with 30 additions and 27 deletions
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21
fs/xfs/xfs_bmap_item.c
View File

@ -441,7 +441,12 @@ xfs_bui_recover(
XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK), 0, 0, &tp);
if (error)
return error;
tp->t_dfops = dfops;
/*
* Recovery stashes all deferred ops during intent processing and
* finishes them on completion. Transfer current dfops state to this
* transaction and transfer the result back before we return.
*/
xfs_defer_move(tp->t_dfops, dfops);
budp = xfs_trans_get_bud(tp, buip);
/* Grab the inode. */
@ -470,7 +475,7 @@ xfs_bui_recover(
xfs_trans_ijoin(tp, ip, 0);
count = bmap->me_len;
error = xfs_trans_log_finish_bmap_update(tp, budp, dfops, type,
error = xfs_trans_log_finish_bmap_update(tp, budp, tp->t_dfops, type,
ip, whichfork, bmap->me_startoff,
bmap->me_startblock, &count, state);
if (error)
@ -482,18 +487,14 @@ xfs_bui_recover(
irec.br_blockcount = count;
irec.br_startoff = bmap->me_startoff;
irec.br_state = state;
error = xfs_bmap_unmap_extent(tp->t_mountp, dfops, ip, &irec);
error = xfs_bmap_unmap_extent(tp->t_mountp, tp->t_dfops, ip,
&irec);
if (error)
goto err_inode;
}
set_bit(XFS_BUI_RECOVERED, &buip->bui_flags);
/*
* Recovery finishes all deferred ops once intent processing is
* complete. Reset the trans reference because commit expects a finished
* dfops or none at all.
*/
tp->t_dfops = NULL;
xfs_defer_move(dfops, tp->t_dfops);
error = xfs_trans_commit(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
IRELE(ip);
@ -501,7 +502,7 @@ xfs_bui_recover(
return error;
err_inode:
tp->t_dfops = NULL;
xfs_defer_move(dfops, tp->t_dfops);
xfs_trans_cancel(tp);
if (ip) {
xfs_iunlock(ip, XFS_ILOCK_EXCL);

6
fs/xfs/xfs_log_recover.c
View File

@ -4854,10 +4854,10 @@ xlog_finish_defer_ops(
0, XFS_TRANS_RESERVE, &tp);
if (error)
return error;
/* dfops is already populated so assign it manually */
tp->t_dfops = dfops;
/* transfer all collected dfops to this transaction */
xfs_defer_move(tp->t_dfops, dfops);
error = xfs_defer_finish(&tp, dfops);
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_cancel;

30
fs/xfs/xfs_refcount_item.c
View File

@ -452,7 +452,12 @@ xfs_cui_recover(
mp->m_refc_maxlevels * 2, 0, XFS_TRANS_RESERVE, &tp);
if (error)
return error;
tp->t_dfops = dfops;
/*
* Recovery stashes all deferred ops during intent processing and
* finishes them on completion. Transfer current dfops state to this
* transaction and transfer the result back before we return.
*/
xfs_defer_move(tp->t_dfops, dfops);
cudp = xfs_trans_get_cud(tp, cuip);
for (i = 0; i < cuip->cui_format.cui_nextents; i++) {
@ -474,8 +479,8 @@ xfs_cui_recover(
new_len = refc->pe_len;
} else
error = xfs_trans_log_finish_refcount_update(tp, cudp,
dfops, type, refc->pe_startblock, refc->pe_len,
&new_fsb, &new_len, &rcur);
tp->t_dfops, type, refc->pe_startblock,
refc->pe_len, &new_fsb, &new_len, &rcur);
if (error)
goto abort_error;
@ -486,21 +491,23 @@ xfs_cui_recover(
switch (type) {
case XFS_REFCOUNT_INCREASE:
error = xfs_refcount_increase_extent(
tp->t_mountp, dfops, &irec);
tp->t_mountp, tp->t_dfops,
&irec);
break;
case XFS_REFCOUNT_DECREASE:
error = xfs_refcount_decrease_extent(
tp->t_mountp, dfops, &irec);
tp->t_mountp, tp->t_dfops,
&irec);
break;
case XFS_REFCOUNT_ALLOC_COW:
error = xfs_refcount_alloc_cow_extent(
tp->t_mountp, dfops,
tp->t_mountp, tp->t_dfops,
irec.br_startblock,
irec.br_blockcount);
break;
case XFS_REFCOUNT_FREE_COW:
error = xfs_refcount_free_cow_extent(
tp->t_mountp, dfops,
tp->t_mountp, tp->t_dfops,
irec.br_startblock,
irec.br_blockcount);
break;
@ -515,18 +522,13 @@ xfs_cui_recover(
xfs_refcount_finish_one_cleanup(tp, rcur, error);
set_bit(XFS_CUI_RECOVERED, &cuip->cui_flags);
/*
* Recovery finishes all deferred ops once intent processing is
* complete. Reset the trans reference because commit expects a finished
* dfops or none at all.
*/
tp->t_dfops = NULL;
xfs_defer_move(dfops, tp->t_dfops);
error = xfs_trans_commit(tp);
return error;
abort_error:
xfs_refcount_finish_one_cleanup(tp, rcur, error);
tp->t_dfops = NULL;
xfs_defer_move(dfops, tp->t_dfops);
xfs_trans_cancel(tp);
return error;
}