On Thu, Aug 20, 2020 at 6:21 AM Yufen Yu <yuyufen@xxxxxxxxxx> wrote:
>
> Commit 3b5408b98e4d ("md/raid5: support config stripe_size by sysfs
> entry") make stripe_size as a configurable value. It just requires
> stripe_size as multiple of 4KB.
>
> In fact, we should make sure stripe_size as power of two. Otherwise,
> stripe_shift which is the result of ilog2 can not represent the real
> stripe_size. Then, stripe_hash() and stripe_hash_locks_hash() may
> get unexpected value.
>
> Fixes: 3b5408b98e4d ("md/raid5: support config stripe_size by sysfs entry")
> Signed-off-by: Yufen Yu <yuyufen@xxxxxxxxxx>
Applied to md-fixes. Thanks!
