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Date: Thu, 17 Sep 2020 17:13:41 +0200 From: Sebastian Siewior <bigeasy@...utronix.de> To: peterz@...radead.org Cc: Thomas Gleixner <tglx@...utronix.de>, LKML <linux-kernel@...r.kernel.org>, Qais Yousef <qais.yousef@....com>, Scott Wood <swood@...hat.com>, Valentin Schneider <valentin.schneider@....com>, Ingo Molnar <mingo@...nel.org>, Juri Lelli <juri.lelli@...hat.com>, Vincent Guittot <vincent.guittot@...aro.org>, Dietmar Eggemann <dietmar.eggemann@....com>, Steven Rostedt <rostedt@...dmis.org>, Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>, Daniel Bristot de Oliveira <bristot@...hat.com>, Vincent Donnefort <vincent.donnefort@....com> Subject: Re: [patch 09/10] sched/core: Add migrate_disable/enable() On 2020-09-17 16:49:37 [+0200], peterz@...radead.org wrote: > I'm aware of the duct-tape :-) But I was under the impression that we > didn't want the duct-tape, and that there was lots of issues with the > FPU code, or was that another issue? Of course it would be better not to need the duct tape. Also symmetrical locking is what you want but clearly futex is one of a kind. I'm currently not aware of any issues in the FPU code in regard to this. A few weeks ago, I was looking for this kind of usage and only futex popped up. Sebastian
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