30d1c4d947
Tzvetomir Stoyanov reported an issue with using macro
perf_cpu_map__for_each_cpu using private perf_cpu object.
The issue is caused by recent change that wrapped cpu in struct perf_cpu
to distinguish it from cpu indexes. We need to make struct perf_cpu
public.
Add a simple test for using the perf_cpu_map__for_each_cpu macro.
Fixes: 6d18804b96 ("perf cpumap: Give CPUs their own type")
Reported-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220215153713.31395-1-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
30 lines
848 B
C
30 lines
848 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __LIBPERF_INTERNAL_CPUMAP_H
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#define __LIBPERF_INTERNAL_CPUMAP_H
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#include <linux/refcount.h>
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#include <perf/cpumap.h>
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/**
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* A sized, reference counted, sorted array of integers representing CPU
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* numbers. This is commonly used to capture which CPUs a PMU is associated
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* with. The indices into the cpumap are frequently used as they avoid having
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* gaps if CPU numbers were used. For events associated with a pid, rather than
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* a CPU, a single dummy map with an entry of -1 is used.
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*/
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struct perf_cpu_map {
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refcount_t refcnt;
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/** Length of the map array. */
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int nr;
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/** The CPU values. */
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struct perf_cpu map[];
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};
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#ifndef MAX_NR_CPUS
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#define MAX_NR_CPUS 2048
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#endif
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int perf_cpu_map__idx(const struct perf_cpu_map *cpus, struct perf_cpu cpu);
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#endif /* __LIBPERF_INTERNAL_CPUMAP_H */
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