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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-02-26 16:38:58 -0800
committerIngo Molnar <mingo@elte.hu>2010-02-27 09:53:53 +0100
commit71da81324c83ef65bb196c7f874ac1c6996d8287 (patch)
treeb470c5769ad88d2e2af8fe25cc84e7df85fb3d7c /MAINTAINERS
parent0b1c87278a8c7e394022ec184a0b44a3886b6fde (diff)
downloadop-kernel-dev-71da81324c83ef65bb196c7f874ac1c6996d8287.zip
op-kernel-dev-71da81324c83ef65bb196c7f874ac1c6996d8287.tar.gz
rcu: Fix accelerated GPs for last non-dynticked CPU
This patch disables irqs across the call to rcu_needs_cpu(). It also enforces a hold-off period so that the idle loop doesn't softirq itself to death when there are lots of RCU callbacks in flight on the last non-dynticked CPU. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <1267231138-27856-3-git-send-email-paulmck@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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