Re: [PATCH v3 2/2] qspinlock, x86: Enable x86-64 to use queue spinlock

[Rik van Riel]

On 01/28/2014 01:19 PM, Waiman Long wrote:
> This patch makes the necessary changes at the x86 architecture
> specific layer to enable the use of queue spinlock for x86-64. As
> x86-32 machines are typically not multi-socket. The benefit of queue
> spinlock may not be apparent. So queue spinlock is not enabled.
>
> Currently, there is some incompatibilities between the para-virtualized
> spinlock code (which hard-codes the use of ticket spinlock) and the
> queue spinlock. Therefore, the use of queue spinlock is disabled when
> the para-virtualized spinlock is enabled.
>
> Signed-off-by: Waiman Long <Waiman.Long@xxxxxx>

Acked-by: Rik van Riel <riel@xxxxxxxxxx>

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