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authorFrederic Weisbecker <fweisbec@gmail.com>2013-08-02 20:29:56 +0400
committerIngo Molnar <mingo@kernel.org>2013-08-16 19:55:33 +0400
commitc2e7fcf53c3cb02b4ada1c66a9bc8a4d97d58aba (patch)
tree84cfdcc6d8f29883e7a7d93e2d6028bffa15ff85 /init
parent6f1d657668ac3041b65265d3653d7e9172a0d603 (diff)
downloadlinux-c2e7fcf53c3cb02b4ada1c66a9bc8a4d97d58aba.tar.xz
nohz: Include local CPU in full dynticks global kick
tick_nohz_full_kick_all() is useful to notify all full dynticks CPUs that there is a system state change to checkout before re-evaluating the need for the tick. Unfortunately this is implemented using smp_call_function_many() that ignores the local CPU. This CPU also needs to re-evaluate the tick. on_each_cpu_mask() is not useful either because we don't want to re-evaluate the tick state in place but asynchronously from an IPI to avoid messing up with any random locking scenario. So lets call tick_nohz_full_kick() from tick_nohz_full_kick_all() so that the usual irq work takes care of it. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Kevin Hilman <khilman@linaro.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1375460996-16329-4-git-send-email-fweisbec@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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