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Groups > linux.kernel > #1184732
| From | Eric Dumazet <eric.dumazet@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 3/3] sched/preempt: fix cond_resched_lock() and cond_resched_softirq() |
| Date | 2015-07-15 14:20 +0200 |
| Message-ID | <pMtPj-7dE-1@gated-at.bofh.it> (permalink) |
| References | <pMrDR-3RV-33@gated-at.bofh.it> <pMrDS-3RV-53@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, 2015-07-15 at 12:52 +0300, Konstantin Khlebnikov wrote: > These functions check should_resched() before unlocking spinlock/bh-enable: > preempt_count always non-zero => should_resched() always returns false. > cond_resched_lock() worked iff spin_needbreak is set. Interesting, this definitely used to work (linux-3.11) Any idea of which commit broke things ? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v2 1/3] drivers/xen/preempt: use need_resched() instead of should_resched() Konstantin Khlebnikov <khlebnikov@yandex-team.ru> - 2015-07-15 12:00 +0200
[PATCH v2 2/3] KVM: PPC: Book3S HV: Use need_resched() instead of should_resched() Konstantin Khlebnikov <khlebnikov@yandex-team.ru> - 2015-07-15 12:00 +0200
[PATCH v2 3/3] sched/preempt: fix cond_resched_lock() and cond_resched_softirq() Konstantin Khlebnikov <khlebnikov@yandex-team.ru> - 2015-07-15 12:00 +0200
Re: [PATCH v2 3/3] sched/preempt: fix cond_resched_lock() and cond_resched_softirq() Eric Dumazet <eric.dumazet@gmail.com> - 2015-07-15 14:20 +0200
Re: [PATCH v2 3/3] sched/preempt: fix cond_resched_lock() and cond_resched_softirq() Konstantin Khlebnikov <khlebnikov@yandex-team.ru> - 2015-07-15 15:00 +0200
Re: [PATCH v2 3/3] sched/preempt: fix cond_resched_lock() and cond_resched_softirq() Peter Zijlstra <peterz@infradead.org> - 2015-07-15 15:40 +0200
Re: [Xen-devel] [PATCH v2 1/3] drivers/xen/preempt: use need_resched() instead of should_resched() David Vrabel <david.vrabel@citrix.com> - 2015-07-20 15:50 +0200
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