perf/x86/intel/lbr: Add static_branch for LBR INFO flags

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Using static_branch to replace the LBR INFO flags to optimize the LBR
INFO parsing.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lkml.kernel.org/r/1641315077-96661-2-git-send-email-peterz@infradead.org

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Peter Zijlstra (Intel) 2022-01-04 08:51:17 -08:00 • committed by Peter Zijlstra

parent 1ac7fd8159

commit 6b19788ddc

1 changed files with 34 additions and 17 deletions

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arch/x86/events/intel/lbr.c

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