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Groups > linux.kernel > #1251953
| From | Andi Kleen <andi@firstfloor.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 4/4] perf, x86: Remove old MSR perf tracing code |
| Date | 2015-10-20 20:50 +0200 |
| Message-ID | <qlK8W-3Ji-21@gated-at.bofh.it> (permalink) |
| References | <qlK8V-3Ji-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Andi Kleen <ak@linux.intel.com>
Now that we have generic MSR trace points we can remove the old
hackish perf MSR read tracing code.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
arch/x86/kernel/cpu/perf_event.h | 12 +-----------
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 4ae66e3..8218659 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -14,17 +14,7 @@
#include <linux/perf_event.h>
-#if 0
-#undef wrmsrl
-#define wrmsrl(msr, val) \
-do { \
- unsigned int _msr = (msr); \
- u64 _val = (val); \
- trace_printk("wrmsrl(%x, %Lx)\n", (unsigned int)(_msr), \
- (unsigned long long)(_val)); \
- native_write_msr((_msr), (u32)(_val), (u32)(_val >> 32)); \
-} while (0)
-#endif
+/* To enable MSR tracing please use the generic trace points. */
/*
* | NHM/WSM | SNB |
--
2.4.3
--
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Adding MSR trace points, new edition Andi Kleen <andi@firstfloor.org> - 2015-10-20 20:50 +0200
[PATCH 4/4] perf, x86: Remove old MSR perf tracing code Andi Kleen <andi@firstfloor.org> - 2015-10-20 20:50 +0200
[PATCH 1/4] x86: Don't include asm/processor.h into asm/atomic.h Andi Kleen <andi@firstfloor.org> - 2015-10-20 20:50 +0200
[PATCH 3/4] x86: Add trace point for MSR accesses Andi Kleen <andi@firstfloor.org> - 2015-10-20 20:50 +0200
Re: [PATCH 3/4] x86: Add trace point for MSR accesses Steven Rostedt <rostedt@goodmis.org> - 2015-10-20 21:40 +0200
[PATCH 2/4] tracepoints: Move struct tracepoint to new tracepoint-defs.h header Andi Kleen <andi@firstfloor.org> - 2015-10-20 20:50 +0200
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