Hi Nick,
On Sun, Oct 16, 2016 at 9:00 PM, Nicholas Piggin wrote:
> On Sat, 15 Oct 2016 03:42:42 -0700
> Joel Fernandes wrote:
>
>> The purge_lock spinlock causes high latencies with non RT kernel. This has
>> been
>> reported multiple times on lkml [1] [2] and affects applications like audio.
>
On Sat, 15 Oct 2016 03:42:42 -0700
Joel Fernandes wrote:
> The purge_lock spinlock causes high latencies with non RT kernel. This has
> been
> reported multiple times on lkml [1] [2] and affects applications like audio.
>
> In this patch, I replace the spinlock with an atomic refcount so that
>
The purge_lock spinlock causes high latencies with non RT kernel. This has been
reported multiple times on lkml [1] [2] and affects applications like audio.
In this patch, I replace the spinlock with an atomic refcount so that
preemption is kept turned on during purge. This Ok to do since [3] buil
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