s390/cpum_cf: Remove superfluous SMP function call

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Since commit 3b9d6da67e ("cpu/hotplug: Fix rollback during error-out
in __cpu_disable()") it is ensured that callbacks of CPU_ONLINE and
CPU_DOWN_PREPARE are processed on the hotplugged CPU. Due to this SMP
function calls are no longer required.

Replace smp_call_function_single() with a direct call of
setup_pmc_cpu(). To keep the calling convention, interrupts are
explicitly disabled around the call.

Cc: linux-s390@vger.kernel.org
Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Anna-Maria Gleixner 2016-05-02 10:59:32 +02:00 • committed by Martin Schwidefsky

parent 7072276e6c

commit 5bc7353901

1 changed files with 6 additions and 3 deletions

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arch/s390/kernel/perf_cpum_cf.c

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