Commit f4d5e64c authored by Thomas Richter's avatar Thomas Richter Committed by Heiko Carstens
Browse files

s390/cpum_sf: Rework call to sf_disable() 



Setup_pmc_cpu() function body consists of one single switch
statement with two cases PMC_INIT and PMC_RELEASE.
In both of these cases sf_disable() is invoked to turn off the
CPU Measurement sampling facility.
Move sf_disable() out of the switch statement.
No functional change.

Signed-off-by: default avatarThomas Richter <tmricht@linux.ibm.com>
Reviewed-by: default avatarHendrik Brueckner <brueckner@linux.ibm.com>
Reviewed-by: default avatarSumanth Korikkar <sumanthk@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 666300da

arch/s390/kernel/perf_cpum_sf.c

+1 −2
Original line number Diff line number Diff line
@@ -559,16 +559,15 @@ static void setup_pmc_cpu(void *flags) 
{

	struct cpu_hw_sf *cpuhw = this_cpu_ptr(&cpu_hw_sf);



	sf_disable();

	switch (*((int *)flags)) {

	case PMC_INIT:

		memset(cpuhw, 0, sizeof(*cpuhw));

		qsi(&cpuhw->qsi);

		cpuhw->flags |= PMU_F_RESERVED;

		sf_disable();

		break;

	case PMC_RELEASE:

		cpuhw->flags &= ~PMU_F_RESERVED;

		sf_disable();

		deallocate_buffers(cpuhw);

		break;

	}