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perf bench numa: Fix cpumask memory leak in node_has_cpus()

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Couple numa_allocate_cpumask() and numa_free_cpumask() functions

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Balamuruhan S <bala24@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Link: http://lore.kernel.org/lkml/20200813113041.GA1685@oc3871087118.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Alexander Gordeev 2020-08-13 13:30:42 +02:00 committed by Arnaldo Carvalho de Melo
parent fa5c893181
commit 509f68e327
1 changed files with 9 additions and 4 deletions
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13
tools/perf/bench/numa.c
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@ -248,16 +248,21 @@ static int is_node_present(int node)
static bool node_has_cpus(int node)
{
struct bitmask *cpu = numa_allocate_cpumask();
bool ret = false; /* fall back to nocpus */
unsigned int i;
if (cpu && !numa_node_to_cpus(node, cpu)) {
BUG_ON(!cpu);
if (!numa_node_to_cpus(node, cpu)) {
for (i = 0; i < cpu->size; i++) {
if (numa_bitmask_isbitset(cpu, i))
return true;
if (numa_bitmask_isbitset(cpu, i)) {
ret = true;
break;
}
}
}
numa_free_cpumask(cpu);
return false; /* lets fall back to nocpus safely */
return ret;
}
static cpu_set_t bind_to_cpu(int target_cpu)