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Re: [Xen-devel] [PATCH 03/11] qspinlock: Add pending bit
- To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
- From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
- Date: Tue, 24 Jun 2014 10:24:22 +0200
- Cc: Waiman Long <waiman.long@xxxxxx>, linux-arch@xxxxxxxxxxxxxxx, gleb@xxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, boris.ostrovsky@xxxxxxxxxx, scott.norton@xxxxxx, raghavendra.kt@xxxxxxxxxxxxxxxxxx, paolo.bonzini@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx, chegu_vinod@xxxxxx, david.vrabel@xxxxxxxxxx, oleg@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, paulmck@xxxxxxxxxxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx, mingo@xxxxxxxxxx
- Delivery-date: Tue, 24 Jun 2014 10:14:47 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On Tue, Jun 17, 2014 at 05:07:29PM -0400, Konrad Rzeszutek Wilk wrote:
> > We are trying to make the fastpath as simple as possible as it may be
> > inlined. The complexity of the queue spinlock is in the slowpath.
>
> Sure, but then it shouldn't be called slowpath anymore as it is not
> slow.
Its common terminology to call the inline part the fast path and the
out-of-line call on failure the slow path.
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