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perf cpumap: Use perf_cpu_map__for_each_cpu when possible

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Rather than manually iterating the CPU map, use
perf_cpu_map__for_each_cpu(). When possible tidy local variables.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
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 Rajeev <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: 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>
Link: https://lore.kernel.org/r/20240202234057.2085863-9-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
2024-02-02 15:40:57 -08:00
committed by Arnaldo Carvalho de Melo
parent 954ac1b4a7
commit 71bc3ac8e8
9 changed files with 72 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
tools/perf/util/bpf_kwork.c
View File

@@ -147,12 +147,12 @@ static bool valid_kwork_class_type(enum kwork_class_type type)
static int setup_filters(struct perf_kwork *kwork)
{
u8 val = 1;
int i, nr_cpus, key, fd;
struct perf_cpu_map *map;
if (kwork->cpu_list != NULL) {
fd = bpf_map__fd(skel->maps.perf_kwork_cpu_filter);
int idx, nr_cpus;
struct perf_cpu_map *map;
struct perf_cpu cpu;
int fd = bpf_map__fd(skel->maps.perf_kwork_cpu_filter);
if (fd < 0) {
pr_debug("Invalid cpu filter fd\n");
return -1;
@@ -165,8 +165,8 @@ static int setup_filters(struct perf_kwork *kwork)
}
nr_cpus = libbpf_num_possible_cpus();
for (i = 0; i < perf_cpu_map__nr(map); i++) {
struct perf_cpu cpu = perf_cpu_map__cpu(map, i);
perf_cpu_map__for_each_cpu(cpu, idx, map) {
u8 val = 1;
if (cpu.cpu >= nr_cpus) {
perf_cpu_map__put(map);
@@ -181,6 +181,8 @@ static int setup_filters(struct perf_kwork *kwork)
}
if (kwork->profile_name != NULL) {
int key, fd;
if (strlen(kwork->profile_name) >= MAX_KWORKNAME) {
pr_err("Requested name filter %s too large, limit to %d\n",
kwork->profile_name, MAX_KWORKNAME - 1);