diff options
author | David S. Miller <davem@davemloft.net> | 2010-04-06 20:38:52 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2010-04-13 01:37:07 -0400 |
commit | daecbf58a509bc27c112647e825df763c3e3b0f4 (patch) | |
tree | 871f5dd9e18ff2f4c4ff88a004527a5b0e974f51 /arch/sparc/kernel | |
parent | f8e8a8e8cba3359df2a16c17d59eedb08adf3b43 (diff) |
sparc64: Use a seperate counter for timer interrupts and NMI checks, like x86.
This keeps us from having to use kstat_irqs_cpu() from the NMI handler,
the former of which is a profiled function.
Instead we use a currently empty slot in the cpu_data
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel')
-rw-r--r-- | arch/sparc/kernel/nmi.c | 3 | ||||
-rw-r--r-- | arch/sparc/kernel/time_64.c | 1 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index b287b62c7ea3..75a3d1a25356 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c | |||
@@ -92,7 +92,6 @@ static void die_nmi(const char *str, struct pt_regs *regs, int do_panic) | |||
92 | notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) | 92 | notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) |
93 | { | 93 | { |
94 | unsigned int sum, touched = 0; | 94 | unsigned int sum, touched = 0; |
95 | int cpu = smp_processor_id(); | ||
96 | 95 | ||
97 | clear_softint(1 << irq); | 96 | clear_softint(1 << irq); |
98 | 97 | ||
@@ -106,7 +105,7 @@ notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) | |||
106 | else | 105 | else |
107 | pcr_ops->write(PCR_PIC_PRIV); | 106 | pcr_ops->write(PCR_PIC_PRIV); |
108 | 107 | ||
109 | sum = kstat_irqs_cpu(0, cpu); | 108 | sum = local_cpu_data().irq0_irqs; |
110 | if (__get_cpu_var(nmi_touch)) { | 109 | if (__get_cpu_var(nmi_touch)) { |
111 | __get_cpu_var(nmi_touch) = 0; | 110 | __get_cpu_var(nmi_touch) = 0; |
112 | touched = 1; | 111 | touched = 1; |
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c index 67e165102885..f25858e442ab 100644 --- a/arch/sparc/kernel/time_64.c +++ b/arch/sparc/kernel/time_64.c | |||
@@ -728,6 +728,7 @@ void timer_interrupt(int irq, struct pt_regs *regs) | |||
728 | 728 | ||
729 | irq_enter(); | 729 | irq_enter(); |
730 | 730 | ||
731 | local_cpu_data().irq0_irqs++; | ||
731 | kstat_incr_irqs_this_cpu(0, irq_to_desc(0)); | 732 | kstat_incr_irqs_this_cpu(0, irq_to_desc(0)); |
732 | 733 | ||
733 | if (unlikely(!evt->event_handler)) { | 734 | if (unlikely(!evt->event_handler)) { |