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authorPeter Zijlstra <peterz@infradead.org>2009-04-01 18:40:15 +0200
committerIngo Molnar <mingo@elte.hu>2009-07-10 10:43:29 +0200
commita1ba4d8ba9f06a397e97cbd67a93ee306860b40a (patch)
treef0e0f92a2c0763f8ec162c2b0e2abc389075b207 /net/decnet
parentsched: Documentation/sched-rt-group: Fix style issues & bump version (diff)
downloadlinux-a1ba4d8ba9f06a397e97cbd67a93ee306860b40a.tar.xz
linux-a1ba4d8ba9f06a397e97cbd67a93ee306860b40a.zip
sched_rt: Fix overload bug on rt group scheduling
Fixes an easily triggerable BUG() when setting process affinities. Make sure to count the number of migratable tasks in the same place: the root rt_rq. Otherwise the number doesn't make sense and we'll hit the BUG in set_cpus_allowed_rt(). Also, make sure we only count tasks, not groups (this is probably already taken care of by the fact that rt_se->nr_cpus_allowed will be 0 for groups, but be more explicit) Tested-by: Thomas Gleixner <tglx@linutronix.de> CC: stable@kernel.org Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Gregory Haskins <ghaskins@novell.com> LKML-Reference: <1247067476.9777.57.camel@twins> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net/decnet')
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