Re: [PATCH v3] ceph: don't let check_caps skip sending responses for revoke msgs

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On Wed, Jun 28, 2023 at 10:36 PM <xiubli@xxxxxxxxxx> wrote:
>
> From: Xiubo Li <xiubli@xxxxxxxxxx>
>
> If a client sends out a cap update dropping caps with the prior 'seq'
> just before an incoming cap revoke request, then the client may drop
> the revoke because it believes it's already released the requested
> capabilities.
>
> This causes the MDS to wait indefinitely for the client to respond
> to the revoke. It's therefore always a good idea to ack the cap
> revoke request with the bumped up 'seq'.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Link: https://tracker.ceph.com/issues/61782
> Signed-off-by: Xiubo Li <xiubli@xxxxxxxxxx>
> Reviewed-by: Milind Changire <mchangir@xxxxxxxxxx>
> Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>

Reviewed-by: Patrick Donnelly <pdonnell@xxxxxxxxxx>

-- 
Patrick Donnelly, Ph.D.
He / Him / His
Red Hat Partner Engineer
IBM, Inc.
GPG: 19F28A586F808C2402351B93C3301A3E258DD79D





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