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(parent: 9b69173) | patch
md/raid5-cache: use ring add to prevent overflow
authorJackieLiu <liuyun01@kylinos.cn>
Mon, 28 Nov 2016 08:19:19 +0000 (16:19 +0800)
committerShaohua Li <shli@fb.com>
Tue, 29 Nov 2016 22:46:21 +0000 (14:46 -0800)
commitfc833c2a2f4129c42efdaed64b9eb6e9ae5fdcee
tree8a69cc0d3019d18a17473314cffd5a6602eb5643tree | snapshot (tar.gz zip)
parent9b69173e5c6000b2c6fafc5085dcd7b173f073c8commit | diff
md/raid5-cache: use ring add to prevent overflow

'write_pos' must be protected with 'r5l_ring_add', or it may overflow

Signed-off-by: JackieLiu <liuyun01@kylinos.cn>
Reviewed-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Shaohua Li <shli@fb.com>
drivers/md/raid5-cache.c diff | blob | blame | history