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btrfs: fix raid56 scrub failed in xfstests btrfs/072

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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 <guihc.fnst@cn.fujitsu.com>
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Gui Hecheng 2015-01-09 09:39:40 +08:00 committed by Chris Mason
parent a53f4f8e9c
commit 063c54dccd
1 changed files with 2 additions and 0 deletions
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2
fs/btrfs/scrub.c
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@ -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