Re: [Xen-devel] [PATCH 0/9] qspinlock stuff -v15
From: Peter Zijlstra <peterz@infradead.org>
Date: 2015-03-19 18:32:37
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kvm, linux-arch, lkml
On Thu, Mar 19, 2015 at 06:01:34PM +0000, David Vrabel wrote:
This seems work for me, but I've not got time to give it a more thorough testing. You can fold this into your series.
Thanks!
There doesn't seem to be a way to disable QUEUE_SPINLOCKS when supported by the arch, is this intentional? If so, the existing ticketlock code could go.
Yeah, its left as a rudiment such that if we find issues with the qspinlock code we can 'revert' with a trivial patch. If no issues show up we can rip out all the old code in a subsequent release.