From 3e0091e2b6f8cd59e567f247e345a3a6ad1f6e7e Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Tue, 26 Jun 2012 23:38:39 +0200 Subject: [PATCH] perf/x86: Save a few bytes in 'struct x86_pmu' All these are basically boolean flags, use a bitfield to save a few bytes. Suggested-by: Borislav Petkov Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-vsevd5g8lhcn129n3s7trl7r@git.kernel.org Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perf_event.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h index 3f5c66904355..a15df4be151f 100644 --- a/arch/x86/kernel/cpu/perf_event.h +++ b/arch/x86/kernel/cpu/perf_event.h @@ -374,8 +374,11 @@ struct x86_pmu { /* * Intel DebugStore bits */ - int bts, pebs; - int bts_active, pebs_active, pebs_broken; + int bts :1, + bts_active :1, + pebs :1, + pebs_active :1, + pebs_broken :1; int pebs_record_size; void (*drain_pebs)(struct pt_regs *regs); struct event_constraint *pebs_constraints;