Re: [PATCH] sched: Remove PREEMPT_NEED_RESCHED from generic code

2013-12-08 Thread Benjamin Herrenschmidt
On Thu, 2013-11-28 at 14:26 +0100, Peter Zijlstra wrote: > Subject: sched: Remove PREEMPT_NEED_RESCHED from generic code > > While hunting a preemption issue with Alexander, Ben noticed that the > currently generic PREEMPT_NEED_RESCHED stuff is horribly broken for > load-store architectures. Hi P

Re: [PATCH] sched: Remove PREEMPT_NEED_RESCHED from generic code

2013-11-28 Thread Alexander Graf
On 11/28/2013 02:26 PM, Peter Zijlstra wrote: Subject: sched: Remove PREEMPT_NEED_RESCHED from generic code While hunting a preemption issue with Alexander, Ben noticed that the currently generic PREEMPT_NEED_RESCHED stuff is horribly broken for load-store architectures. We currently rely on th

[PATCH] sched: Remove PREEMPT_NEED_RESCHED from generic code

2013-11-28 Thread Peter Zijlstra
Subject: sched: Remove PREEMPT_NEED_RESCHED from generic code While hunting a preemption issue with Alexander, Ben noticed that the currently generic PREEMPT_NEED_RESCHED stuff is horribly broken for load-store architectures. We currently rely on the IPI to fold TIF_NEED_RESCHED into PREEMPT_NEE