[PATCH 0/2] perf: perf_arch_fetch_regs_caller API change
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From: Frederic Weisbecker on 21 May 2010 04:20 Hi, I did some updates in this function, we don't need anymore to skip further the first caller now. So I think it's worth the simplification to lower the overhead in the tracing fast path. I took Paul updates for PowerPc and I did the changes on x86. But I'm clearly useless about the sparc part, I'm still confused about these window things. So all I did in this arch is to wrap the older API with the new one, always passing the skip to 1. I suspect David can be more useful than me to do a real change there :) Tell me what you think, Thanks. Frederic Weisbecker (2): x86: Unify dumpstack.h and stacktrace.h perf: Drop the skip argument from perf_arch_fetch_regs_caller arch/powerpc/include/asm/perf_event.h | 12 +++++++ arch/powerpc/kernel/misc.S | 26 --------------- arch/sparc/include/asm/perf_event.h | 4 ++ arch/sparc/kernel/helpers.S | 6 ++-- arch/x86/include/asm/perf_event.h | 9 +++++ arch/x86/include/asm/stacktrace.h | 49 ++++++++++++++++++++++++++++ arch/x86/kernel/cpu/perf_event.c | 14 -------- arch/x86/kernel/dumpstack.c | 1 - arch/x86/kernel/dumpstack.h | 56 --------------------------------- arch/x86/kernel/dumpstack_32.c | 2 - arch/x86/kernel/dumpstack_64.c | 1 - arch/x86/kernel/stacktrace.c | 7 ++-- include/linux/perf_event.h | 32 ++++-------------- include/trace/ftrace.h | 2 +- kernel/perf_event.c | 5 --- kernel/trace/trace_event_perf.c | 2 - 16 files changed, 89 insertions(+), 139 deletions(-) delete mode 100644 arch/x86/kernel/dumpstack.h -- 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/ |
