diff options
| author | Robert Richter <robert.richter@amd.com> | 2010-03-17 12:49:10 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-03-17 13:06:58 +0100 |
| commit | b27ea29c6267889be255f2217fa7a6106e6a8b04 (patch) | |
| tree | 60ae76246aa5a3f64ab3ffd7c846f0aa13ba774a /arch/x86/kernel/cpu/perf_event.c | |
| parent | 3b0d516463f8deb897a55cb81e9dbbe58a2490ed (diff) | |
| download | blackbird-op-linux-b27ea29c6267889be255f2217fa7a6106e6a8b04.tar.gz blackbird-op-linux-b27ea29c6267889be255f2217fa7a6106e6a8b04.zip | |
perf/core, x86: Reduce number of CONFIG_X86_LOCAL_APIC macros
The function reserve_pmc_hardware() and release_pmc_hardware()
were hard to read. This patch improves readability of the code by
removing most of the CONFIG_X86_LOCAL_APIC macros.
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1268826553-19518-2-git-send-email-robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/cpu/perf_event.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perf_event.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 5dacf63f913e..793e63f6c420 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -313,9 +313,10 @@ again: static atomic_t active_events; static DEFINE_MUTEX(pmc_reserve_mutex); +#ifdef CONFIG_X86_LOCAL_APIC + static bool reserve_pmc_hardware(void) { -#ifdef CONFIG_X86_LOCAL_APIC int i; if (nmi_watchdog == NMI_LOCAL_APIC) @@ -330,11 +331,9 @@ static bool reserve_pmc_hardware(void) if (!reserve_evntsel_nmi(x86_pmu.eventsel + i)) goto eventsel_fail; } -#endif return true; -#ifdef CONFIG_X86_LOCAL_APIC eventsel_fail: for (i--; i >= 0; i--) release_evntsel_nmi(x86_pmu.eventsel + i); @@ -349,12 +348,10 @@ perfctr_fail: enable_lapic_nmi_watchdog(); return false; -#endif } static void release_pmc_hardware(void) { -#ifdef CONFIG_X86_LOCAL_APIC int i; for (i = 0; i < x86_pmu.num_events; i++) { @@ -364,9 +361,15 @@ static void release_pmc_hardware(void) if (nmi_watchdog == NMI_LOCAL_APIC) enable_lapic_nmi_watchdog(); -#endif } +#else + +static bool reserve_pmc_hardware(void) { return true; } +static void release_pmc_hardware(void) {} + +#endif + static int reserve_ds_buffers(void); static void release_ds_buffers(void); |
