The xfstests btrfs/072 reports uncorrectable read errors in dmesg,
because scrub forgets to use commit_root for parity scrub routine
and scrub attempts to scrub those extents items whose contents are
not fully on disk.

To fix it, we just add the @search_commit_root flag back.

Signed-off-by: Gui Hecheng <[email protected]>
Signed-off-by: Qu Wenruo <[email protected]>
---
 fs/btrfs/scrub.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index f2bb13a..aa8ff75 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -3065,6 +3065,8 @@ static noinline_for_stack int scrub_stripe(struct 
scrub_ctx *sctx,
        path->search_commit_root = 1;
        path->skip_locking = 1;
 
+       ppath->search_commit_root = 1;
+       ppath->skip_locking = 1;
        /*
         * trigger the readahead for extent tree csum tree and wait for
         * completion. During readahead, the scrub is officially paused
-- 
1.8.1.4

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