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Subject[PATCH 6/9] metag: perf: use hard_processor_id() to get thread
Date
Use hard_processor_id() to get the current thread number rather than
get_cpu() and the hardware thread mapping. There was no matching
put_cpu(), and in any case this should be slightly more efficient.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
---
arch/metag/kernel/perf/perf_event.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/metag/kernel/perf/perf_event.c b/arch/metag/kernel/perf/perf_event.c
index 6210126..54fde35 100644
--- a/arch/metag/kernel/perf/perf_event.c
+++ b/arch/metag/kernel/perf/perf_event.c
@@ -22,9 +22,9 @@
#include <linux/slab.h>

#include <asm/core_reg.h>
-#include <asm/hwthread.h>
#include <asm/io.h>
#include <asm/irq.h>
+#include <asm/processor.h>

#include "perf_event.h"

@@ -651,7 +651,7 @@ static void metag_pmu_enable_counter(struct hw_perf_event *event, int idx)
}

tmp = ((config & 0xf) << 28) |
- ((1 << 24) << cpu_2_hwthread_id[get_cpu()]);
+ ((1 << 24) << hard_processor_id());
if (metag_pmu->max_period)
/*
* Cores supporting overflow interrupts may have had the counter
--
1.8.1.2



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