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H A D | expr.c | c3bf86f1 Fri Mar 24 02:22:17 CDT 2023 Ian Rogers <irogers@google.com> perf metrics: Add has_pmem literal
Add literal so that if nvdimms aren't installed we can record fewer events. The file detection mechanism was suggested by Dan Williams <dan.j.williams@intel.com> in:
https://lore.kernel.org/linux-perf-users/641bbe1eced26_1b98bb29440@dwillia2-xfh.jf.intel.com.notmuch/
Reviewed-by: Kan Liang <kan.liang@linux.intel.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Caleb Biggers <caleb.biggers@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Edward Baker <edward.baker@intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Perry Taylor <perry.taylor@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Samantha Alt <samantha.alt@intel.com> Cc: Weilin Wang <weilin.wang@intel.com> Cc: Xing Zhengjun <zhengjun.xing@linux.intel.com> Link: https://lore.kernel.org/r/20230324072218.181880-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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