[PATCH 01/26] xen-blkfront: don't disable cache flushes when they fail

[Hannes Reinecke]

On 6/17/24 08:04, Christoph Hellwig wrote:
> blkfront always had a robust negotiation protocol for detecting a write
> cache.  Stop simply disabling cache flushes in the block layer as the
> flags handling is moving to the atomic queue limits API that needs
> user context to freeze the queue for that.  Instead handle the case
> of the feature flags cleared inside of blkfront.  This removes old
> debug code to check for such a mismatch which was previously impossible
> to hit, including the check for passthrough requests that blkfront
> never used to start with.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>   drivers/block/xen-blkfront.c | 44 +++++++++++++++++++-----------------
>   1 file changed, 23 insertions(+), 21 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare at suse.de>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare at suse.de                                +49 911 74053 688
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