ACK: [SRU][n][PATCH 0/2] Fix deadlock during suspending md raid

[Aaron Jauregui]

On Tue, Aug 20, 2024 at 02:01:43PM -0400, Philip Cox wrote:
> BugLink: https://bugs.launchpad.net/bugs/2073695
> 
> 
> SRU Justification:
> 
> [Impact]
> There is a possible deadlock when suspending a system with a MD RAID.
> 
> This deadlock was introduced via upstream commit 
> fa2bbff7b0b4e211fec5e5686ef96350690597b5.
> 
> The deadlock was exposed while trying to fix another deadlock, so
> this patchset contains two patches.  The first fixes the fix, and
> the second fixes the new deadlock.  With these two patches, the
> deadlock has been resolved, and the existing code was cleaned up.
> 
> 
> [Fix]
> Upstream commits:
>    - 03e792eaf18ec2e93e2c623f9f1a4bdb97fe4126
>    - 611d5cbc0b35a752e657a83eebadf40d814d006b
> 
> where used to resolve the deadlocks.  The first patch cleans up
> some of the logic, and the second resolves the deadlock.
> 
> [Test Plan]
> I have tested this patch.
> 
> [Where problems could occur]
> As this code change touches the locking of the MD driver there 
> is some risk of introducing new locking issues.  As this change
> has been upstreamed for some time now, and has been back-ported
> to some of the upstreeam stable kernels, I feel that risk is
> fairly low.

Acked-by: Aaron Jauregui <aaron.jauregui at canonical.com>