[tip:perf/urgent] perf, x86: Remove superfluous arguments to x86_perf_event_set_period()
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From: tip-bot for Peter Zijlstra on 10 Mar 2010 08:20 Commit-ID: 07088edb88164c2a2406cd2d9a7be19d8515214b Gitweb: http://git.kernel.org/tip/07088edb88164c2a2406cd2d9a7be19d8515214b Author: Peter Zijlstra <a.p.zijlstra(a)chello.nl> AuthorDate: Tue, 2 Mar 2010 20:16:01 +0100 Committer: Ingo Molnar <mingo(a)elte.hu> CommitDate: Wed, 10 Mar 2010 13:22:27 +0100 perf, x86: Remove superfluous arguments to x86_perf_event_set_period() The second and third argument to x86_perf_event_set_period() are superfluous since they are simple expressions of the first argument. Hence remove them. Signed-off-by: Peter Zijlstra <a.p.zijlstra(a)chello.nl> Cc: paulus(a)samba.org Cc: eranian(a)google.com Cc: robert.richter(a)amd.com Cc: fweisbec(a)gmail.com Cc: Arnaldo Carvalho de Melo <acme(a)infradead.org> LKML-Reference: <20100304140100.006500906(a)chello.nl> Signed-off-by: Ingo Molnar <mingo(a)elte.hu> --- arch/x86/kernel/cpu/perf_event.c | 15 +++++++-------- arch/x86/kernel/cpu/perf_event_intel.c | 2 +- 2 files changed, 8 insertions(+), 9 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index 585d560..fcf1788 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -170,8 +170,7 @@ static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, }; -static int x86_perf_event_set_period(struct perf_event *event, - struct hw_perf_event *hwc, int idx); +static int x86_perf_event_set_period(struct perf_event *event); /* * Generalized hw caching related hw_event table, filled @@ -835,7 +834,7 @@ void hw_perf_enable(void) if (hwc->idx == -1) { x86_assign_hw_event(event, cpuc, i); - x86_perf_event_set_period(event, hwc, hwc->idx); + x86_perf_event_set_period(event); } /* * need to mark as active because x86_pmu_disable() @@ -876,12 +875,12 @@ static DEFINE_PER_CPU(u64 [X86_PMC_IDX_MAX], pmc_prev_left); * To be called with the event disabled in hw: */ static int -x86_perf_event_set_period(struct perf_event *event, - struct hw_perf_event *hwc, int idx) +x86_perf_event_set_period(struct perf_event *event) { + struct hw_perf_event *hwc = &event->hw; s64 left = atomic64_read(&hwc->period_left); s64 period = hwc->sample_period; - int err, ret = 0; + int err, ret = 0, idx = hwc->idx; if (idx == X86_PMC_IDX_FIXED_BTS) return 0; @@ -979,7 +978,7 @@ static int x86_pmu_start(struct perf_event *event) if (hwc->idx == -1) return -EAGAIN; - x86_perf_event_set_period(event, hwc, hwc->idx); + x86_perf_event_set_period(event); x86_pmu.enable(hwc, hwc->idx); return 0; @@ -1123,7 +1122,7 @@ static int x86_pmu_handle_irq(struct pt_regs *regs) handled = 1; data.period = event->hw.last_period; - if (!x86_perf_event_set_period(event, hwc, idx)) + if (!x86_perf_event_set_period(event)) continue; if (perf_event_overflow(event, 1, &data, regs)) diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c index c582449..6dbdf91 100644 --- a/arch/x86/kernel/cpu/perf_event_intel.c +++ b/arch/x86/kernel/cpu/perf_event_intel.c @@ -699,7 +699,7 @@ static int intel_pmu_save_and_restart(struct perf_event *event) int ret; x86_perf_event_update(event, hwc, idx); - ret = x86_perf_event_set_period(event, hwc, idx); + ret = x86_perf_event_set_period(event); return ret; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |