Re: [Xen-devel] [PATCH v11 01/34] ARM: vGIC: avoid rank lock when reading priority

[Julien Grall <julien.grall@xxxxxxx>]

On 06/14/2017 12:22 PM, Andre Przywara wrote:
> As for the readability argument of "ACCESS_ONCE(*ptr) = foo;":
> I agree, but was wondering why we don't have Linux' READ_ONCE/WRITE_ONCE
> pairs in the first place. I see that the implementation of them is
> nicely merged into one macro, but maybe we should have wrappers to
> improve readability? Not sure that's something for this patch, though.
> So can we postpone this for the rework? This will be touched anyway
> because it's dealing with a rank.
I think nobody looked at importing WRITE_ONCE/READ_ONCE on Xen. Feel 
free to send a patch :).
Anyway, I am happy to postpone for the rework.

Cheers,

--
Julien Grall

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