Re: [Xen-devel] [PATCH 3/4] xen/interface: don't discard pending work in FRONT/BACK_RING_ATTACH

[Roger Pau Monné]

On Thu, Dec 05, 2019 at 02:01:22PM +0000, Paul Durrant wrote:
> Currently these macros will skip over any requests/responses that are
> added to the shared ring whilst it is detached. This, in general, is not
> a desirable semantic since most frontend implementations will eventually
> block waiting for a response which would either never appear or never be
> processed.
> 
> NOTE: These macros are currently unused. BACK_RING_ATTACH(), however, will
>       be used in a subsequent patch.
> 
> Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>

Those headers come from Xen, and should be modified in Xen first and
then imported into Linux IMO.

Thanks, Roger.