[dm-devel] [PATCH v5.10] dm: fix mempool NULL pointer race when completing IO

[Greg Kroah-Hartman]

On Thu, Apr 21, 2022 at 02:08:30PM -0400, Mikulas Patocka wrote:
> Hi

Not really needed in a changelog text :)

> This is backport of patches d208b89401e0 ("dm: fix mempool NULL pointer
> race when completing IO") and 9f6dc6337610 ("dm: interlock pending dm_io
> and dm_wait_for_bios_completion") for the kernel 5.10.

Can you just make these 2 different patches?

> 
> The bugs fixed by these patches can cause random crashing when reloading
> dm table, so it is eligible for stable backport.
> 
> This patch is different from the upstream patches because the code
> diverged significantly.
> 

This change is _VERY_ different.  I would need acks from the maintainers
of this code before I could accept this, along with a much more detailed
description of why the original commits will not work here as well.

Same for the other backports.

thanks,

greg k-h