From 077dd509197e756884774b85775031d3ed57ac6d Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Tue, 25 Oct 2016 13:00:12 +1100 Subject: [PATCH] xfs: defer should abort intent items if the trans roll fails Source kernel commit: b77428b12b55437b28deae738d9ce8b2e0663b55 If the deferred ops transaction roll fails, we need to abort the intent items if we haven't already logged a done item for it, regardless of whether or not the deferred ops has had a transaction committed. Dave found this while running generic/388. Move the tracepoint to make it easier to track object lifetimes. Reported-by: Dave Chinner Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner Signed-off-by: Dave Chinner --- libxfs/xfs_defer.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/libxfs/xfs_defer.c b/libxfs/xfs_defer.c index 290a5f04e..d880d59e9 100644 --- a/libxfs/xfs_defer.c +++ b/libxfs/xfs_defer.c @@ -199,9 +199,9 @@ xfs_defer_intake_work( struct xfs_defer_pending *dfp; list_for_each_entry(dfp, &dop->dop_intake, dfp_list) { - trace_xfs_defer_intake_work(tp->t_mountp, dfp); dfp->dfp_intent = dfp->dfp_type->create_intent(tp, dfp->dfp_count); + trace_xfs_defer_intake_work(tp->t_mountp, dfp); list_sort(tp->t_mountp, &dfp->dfp_work, dfp->dfp_type->diff_items); list_for_each(li, &dfp->dfp_work) @@ -221,21 +221,14 @@ xfs_defer_trans_abort( struct xfs_defer_pending *dfp; trace_xfs_defer_trans_abort(tp->t_mountp, dop); - /* - * If the transaction was committed, drop the intent reference - * since we're bailing out of here. The other reference is - * dropped when the intent hits the AIL. If the transaction - * was not committed, the intent is freed by the intent item - * unlock handler on abort. - */ - if (!dop->dop_committed) - return; - /* Abort intent items. */ + /* Abort intent items that don't have a done item. */ list_for_each_entry(dfp, &dop->dop_pending, dfp_list) { trace_xfs_defer_pending_abort(tp->t_mountp, dfp); - if (!dfp->dfp_done) + if (dfp->dfp_intent && !dfp->dfp_done) { dfp->dfp_type->abort_intent(dfp->dfp_intent); + dfp->dfp_intent = NULL; + } } /* Shut down FS. */ -- 2.39.2