Messages in this thread | | | Date | Mon, 2 May 2016 12:43:05 +0200 | From | Heiko Carstens <> | Subject | Re: [PATCH v2] s390/cpum_cf: Remove superfluous SMP function call |
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On Mon, May 02, 2016 at 10:59:32AM +0200, Anna-Maria Gleixner wrote: > Since commit 3b9d6da67e11 ("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: Martin Schwidefsky <schwidefsky@de.ibm.com> > Cc: Heiko Carstens <heiko.carstens@de.ibm.com> > Cc: linux-s390@vger.kernel.org > Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> > --- > Changes in v2: > - Adapt referenced commit in commit message > > arch/s390/kernel/perf_cpum_cf.c | 9 ++++++--- > 1 file changed, 6 insertions(+), 3 deletions(-)
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Martin, can you pick this patch up?
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