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| author | Wei Fang <fangwei1@huawei.com> | 2016-03-21 19:18:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-02 21:19:48 -0700 |
| commit | 49b2fe4b020776640268a5d75c5eca712fcc7b01 (patch) | |
| tree | 45545c59625e31ec302a230f599aec6140c8fdfe /tools/perf/scripts/python/bin | |
| parent | 28320756e78b3e8f1520bc1c34b23a3df452569e (diff) | |
md:raid1: fix a dead loop when read from a WriteMostly disk
commit 816b0acf3deb6d6be5d0519b286fdd4bafade905 upstream.
If first_bad == this_sector when we get the WriteMostly disk
in read_balance(), valid disk will be returned with zero
max_sectors. It'll lead to a dead loop in make_request(), and
OOM will happen because of endless allocation of struct bio.
Since we can't get data from this disk in this case, so
continue for another disk.
Signed-off-by: Wei Fang <fangwei1@huawei.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/bin')
0 files changed, 0 insertions, 0 deletions