- To: Andrea Arcangeli <aarcange@xxxxxxxxxx>
- Subject: Re: [PATCH 07/39] autonuma: introduce kthread_bind_node()
- From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
- Date: Tue, 27 Mar 2012 17:45:35 +0200
- Cc: linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, Hillf Danton <dhillf@xxxxxxxxx>, Dan Smith <danms@xxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxx>, Paul Turner <pjt@xxxxxxxxxx>, Suresh Siddha <suresh.b.siddha@xxxxxxxxx>, Mike Galbraith <efault@xxxxxx>, "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>, Lai Jiangshan <laijs@xxxxxxxxxxxxxx>, Bharata B Rao <bharata.rao@xxxxxxxxx>, Lee Schermerhorn <Lee.Schermerhorn@xxxxxx>, Rik van Riel <riel@xxxxxxxxxx>, Johannes Weiner <hannes@xxxxxxxxxxx>
- Delivered-to: linux-mm-outgoing@xxxxxxxxx
- Delivered-to: int-list-linux-mm@xxxxxxxxx
- Delivered-to: linux-mm@xxxxxxxxx
- In-reply-to: <20120327152209.GL5906@redhat.com>
On Tue, 2012-03-27 at 17:22 +0200, Andrea Arcangeli wrote:
> I don't see what's wrong with more than 1 CPU in the hard bind
> cpumask.
Because its currently broken, but we're trying to restore its pure
semantic so that we can use it in more places again, like
debug_smp_processor_id(). Testing a single process flag is _much_
cheaper than testing ->cpus_allowed.
Adding more broken isn't an option.
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