Re: [PATCH 2/2] md: Move alloc/free acct bioset in to personality

On 12/9/21 1:55 PM, Xiao Ni wrote:

Now it alloc acct bioset in md_run and only raid0/raid5 need acct
bioset. For example, it doesn't create acct bioset when creating
raid1. Then reshape from raid1 to raid0/raid5, it will access acct
bioset after reshaping. It can panic because of NULL pointer
reference.

Thanks, I think the previous commit didn't think of the reshape scenario.
Could you paste the relevant info into commit header?

We can move alloc/free jobs to personality. pers->run alloc acct
bioset and pers->clean free it.

In the reshape case,  the caller of pers->run is level_store, so.

Acked-by: Guoqing Jiang <redacted>

Thanks,
Guoqing