Hi Shaohua,
Given it's related to md, can you please take this thru your tree?
Thanks,
-liubo
On Wed, Sep 27, 2017 at 04:13:17PM -0600, Liu Bo wrote:
> MD's rdev_set_badblocks() expects that badblocks_set() returns 1 if
> badblocks are disabled, otherwise, rdev_set_badblocks() will record
> superblock changes and return success in that case and md will fail to
> report an IO error which it should.
>
> This bug has existed since badblocks were introduced in commit
> 9e0e252a048b ("badblocks: Add core badblock management code").
>
> Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx>
> ---
> block/badblocks.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/block/badblocks.c b/block/badblocks.c
> index 43c7116..91f7bcf 100644
> --- a/block/badblocks.c
> +++ b/block/badblocks.c
> @@ -178,7 +178,7 @@ int badblocks_set(struct badblocks *bb, sector_t s, int sectors,
>
> if (bb->shift < 0)
> /* badblocks are disabled */
> - return 0;
> + return 1;
>
> if (bb->shift) {
> /* round the start down, and the end up */
> --
> 2.9.4
>
