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libperf cpumap: Add for_each_cpu() that skips the "any CPU" case
When iterating CPUs in a CPU map it is often desirable to skip the "any CPU" (aka dummy) case. Add a helper for this and use in builtin-record. Reviewed-by: James Clark <james.clark@arm.com> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Cc: Andrew Jones <ajones@ventanamicro.com> Cc: André Almeida <andrealmeid@igalia.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Atish Patra <atishp@rivosinc.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Darren Hart <dvhart@infradead.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paran Lee <p4ranlee@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will@kernel.org> Cc: Yang Jihong <yangjihong1@huawei.com> Cc: Yang Li <yang.lee@linux.alibaba.com> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: bpf@vger.kernel.org Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20231129060211.1890454-6-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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2 changed files with 7 additions and 3 deletions
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@ -64,6 +64,12 @@ LIBPERF_API bool perf_cpu_map__has_any_cpu(const struct perf_cpu_map *map);
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(idx) < perf_cpu_map__nr(cpus); \
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(idx)++, (cpu) = perf_cpu_map__cpu(cpus, idx))
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#define perf_cpu_map__for_each_cpu_skip_any(_cpu, idx, cpus) \
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for ((idx) = 0, (_cpu) = perf_cpu_map__cpu(cpus, idx); \
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(idx) < perf_cpu_map__nr(cpus); \
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(idx)++, (_cpu) = perf_cpu_map__cpu(cpus, idx)) \
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if ((_cpu).cpu != -1)
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#define perf_cpu_map__for_each_idx(idx, cpus) \
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for ((idx) = 0; (idx) < perf_cpu_map__nr(cpus); (idx)++)
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@ -3601,9 +3601,7 @@ static int record__mmap_cpu_mask_init(struct mmap_cpu_mask *mask, struct perf_cp
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if (cpu_map__is_dummy(cpus))
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return 0;
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perf_cpu_map__for_each_cpu(cpu, idx, cpus) {
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if (cpu.cpu == -1)
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continue;
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perf_cpu_map__for_each_cpu_skip_any(cpu, idx, cpus) {
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/* Return ENODEV is input cpu is greater than max cpu */
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if ((unsigned long)cpu.cpu > mask->nbits)
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return -ENODEV;
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