ACK: [SRU][M][PATCH 0/1] arm64 atomic issues cause disk corruption

[Manuel Diewald]

On Fri, Nov 03, 2023 at 09:10:00AM +0100, Roxana Nicolescu wrote:
> BugLink: https://bugs.launchpad.net/bugs/2042573
> 
> SRU Justification:
> 
> [Impact]
> The mantic kernel introduced a regression in atomic operations on arm64
> which causes all kinds of problems including file system corruptions,
> since commit "locking/atomic: scripts: restructure fallback
> ifdeffery".
> 
> An example report of people encountering this in UTM with a arm64
> generic kernel: https://github.com/utmapp/UTM/issues/4840
> 
> [Fix]
> Cherry-pick commit "locking/atomic: scripts: fix fallback ifdeffery"
> from linux-stable v6.5.6
> 
> [Test Plan]
> Boot test on an arm64 vm.
> 
> [Where problems could occur]
> Since this is touching atomic operations, this has a wide impact on the
> kernel.
> 
> Mark Rutland (1):
>   locking/atomic: scripts: fix fallback ifdeffery
> 
>  include/linux/atomic/atomic-arch-fallback.h | 10 +---------
>  scripts/atomic/gen-atomic-fallback.sh       |  2 +-
>  2 files changed, 2 insertions(+), 10 deletions(-)
> 
> -- 
> 2.34.1
> 
> 
> -- 
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Acked-by: Manuel Diewald <manuel.diewald at canonical.com>