perf/x86/intel/lbr: Use correct index to save/restore LBR_INFO with call stack
authorAndi Kleen <ak@linux.intel.com>
Thu, 28 May 2015 04:13:17 +0000 (21:13 -0700)
committerIngo Molnar <mingo@kernel.org>
Tue, 4 Aug 2015 08:16:59 +0000 (10:16 +0200)
commite0573364b8c5b17401569ef581f1625803210f4d
treeec11a8ef0b2d59805f5fed1b574b5b29ea3ca930
parent9a92e16fd7b4ccd9aabcbc4d42a3fb5f9a3cf4a1
perf/x86/intel/lbr: Use correct index to save/restore LBR_INFO with call stack

Use the correct index to save/restore the LBR_INFO_x MSR in
callstack mode. This is more a cleanup, as even with the wrong
index the register was correctly saved/restored, and also
LBR callgraph mode in perf tools do not really need anything in
LBR_INFO. But still better to use the right index.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: acme@kernel.org
Cc: eranian@google.com
Cc: jolsa@redhat.com
Link: http://lkml.kernel.org/r/1432786398-23861-5-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/kernel/cpu/perf_event_intel_lbr.c