[PATCH 33/48] MIPS: Replace __get_cpu_var uses in FPU emulator.

From: Christoph Lameter
Date: Fri Feb 14 2014 - 15:26:20 EST



From: David Daney <david.daney@xxxxxxxxxx>

The use of __this_cpu_inc() requires a fundamental integer type, so
change the type of all the counters to unsigned long, which is the
same width they were before, but not wrapped in local_t.

Signed-off-by: David Daney <david.daney@xxxxxxxxxx>
Signed-off-by: Christoph Lameter <cl@xxxxxxxxx>
---
arch/mips/include/asm/fpu_emulator.h | 14 +++++++-------
arch/mips/math-emu/cp1emu.c | 6 +++---
2 files changed, 10 insertions(+), 10 deletions(-)

Index: linux/arch/mips/include/asm/fpu_emulator.h
===================================================================
--- linux.orig/arch/mips/include/asm/fpu_emulator.h 2014-02-03 13:25:55.311884622 -0600
+++ linux/arch/mips/include/asm/fpu_emulator.h 2014-02-03 13:25:55.311884622 -0600
@@ -30,12 +30,12 @@
#ifdef CONFIG_DEBUG_FS

struct mips_fpu_emulator_stats {
- local_t emulated;
- local_t loads;
- local_t stores;
- local_t cp1ops;
- local_t cp1xops;
- local_t errors;
+ unsigned long emulated;
+ unsigned long loads;
+ unsigned long stores;
+ unsigned long cp1ops;
+ unsigned long cp1xops;
+ unsigned long errors;
};

DECLARE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
@@ -43,7 +43,7 @@
#define MIPS_FPU_EMU_INC_STATS(M) \
do { \
preempt_disable(); \
- __local_inc(&__get_cpu_var(fpuemustats).M); \
+ __this_cpu_inc(fpuemustats.M); \
preempt_enable(); \
} while (0)

Index: linux/arch/mips/math-emu/cp1emu.c
===================================================================
--- linux.orig/arch/mips/math-emu/cp1emu.c 2014-02-03 13:25:55.311884622 -0600
+++ linux/arch/mips/math-emu/cp1emu.c 2014-02-03 13:25:55.311884622 -0600
@@ -2140,13 +2140,13 @@
static int fpuemu_stat_get(void *data, u64 *val)
{
int cpu;
- unsigned long sum = 0;
+ u64 sum = 0;
for_each_online_cpu(cpu) {
struct mips_fpu_emulator_stats *ps;
- local_t *pv;
+ unsigned long *pv;
ps = &per_cpu(fpuemustats, cpu);
pv = (void *)ps + (unsigned long)data;
- sum += local_read(pv);
+ sum += *pv;
}
*val = sum;
return 0;

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