mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 08:25:12 +07:00
3c8b818640
bitmap_zero() is called after bitmap_alloc() in perf code. But bitmap_alloc() internally uses calloc() which guarantees that allocated area is zeroed. So following bitmap_zero is unneeded. Drop it. This happened because of confusing name for bitmap allocator. It should has name bitmap_zalloc instead of bitmap_alloc. This series: https://lkml.org/lkml/2018/6/18/841 introduces a new API for bitmap allocations in kernel, and functions there are named correctly. Following patch propogates the API to tools, and fixes naming issue. Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andriy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: David Carrillo-Cisneros <davidcc@google.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Jin Yao <yao.jin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Mike Snitzer <snitzer@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Link: http://lkml.kernel.org/r/20180623073502.16321-1-ynorov@caviumnetworks.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
#include <linux/compiler.h>
|
|
#include <linux/bitmap.h>
|
|
#include "cpumap.h"
|
|
#include "mem2node.h"
|
|
#include "tests.h"
|
|
|
|
static struct node {
|
|
int node;
|
|
const char *map;
|
|
} test_nodes[] = {
|
|
{ .node = 0, .map = "0" },
|
|
{ .node = 1, .map = "1-2" },
|
|
{ .node = 3, .map = "5-7,9" },
|
|
};
|
|
|
|
#define T TEST_ASSERT_VAL
|
|
|
|
static unsigned long *get_bitmap(const char *str, int nbits)
|
|
{
|
|
struct cpu_map *map = cpu_map__new(str);
|
|
unsigned long *bm = NULL;
|
|
int i;
|
|
|
|
bm = bitmap_alloc(nbits);
|
|
|
|
if (map && bm) {
|
|
for (i = 0; i < map->nr; i++) {
|
|
set_bit(map->map[i], bm);
|
|
}
|
|
}
|
|
|
|
if (map)
|
|
cpu_map__put(map);
|
|
else
|
|
free(bm);
|
|
|
|
return bm && map ? bm : NULL;
|
|
}
|
|
|
|
int test__mem2node(struct test *t __maybe_unused, int subtest __maybe_unused)
|
|
{
|
|
struct mem2node map;
|
|
struct memory_node nodes[3];
|
|
struct perf_env env = {
|
|
.memory_nodes = (struct memory_node *) &nodes[0],
|
|
.nr_memory_nodes = ARRAY_SIZE(nodes),
|
|
.memory_bsize = 0x100,
|
|
};
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(nodes); i++) {
|
|
nodes[i].node = test_nodes[i].node;
|
|
nodes[i].size = 10;
|
|
|
|
T("failed: alloc bitmap",
|
|
(nodes[i].set = get_bitmap(test_nodes[i].map, 10)));
|
|
}
|
|
|
|
T("failed: mem2node__init", !mem2node__init(&map, &env));
|
|
T("failed: mem2node__node", 0 == mem2node__node(&map, 0x50));
|
|
T("failed: mem2node__node", 1 == mem2node__node(&map, 0x100));
|
|
T("failed: mem2node__node", 1 == mem2node__node(&map, 0x250));
|
|
T("failed: mem2node__node", 3 == mem2node__node(&map, 0x500));
|
|
T("failed: mem2node__node", 3 == mem2node__node(&map, 0x650));
|
|
T("failed: mem2node__node", -1 == mem2node__node(&map, 0x450));
|
|
T("failed: mem2node__node", -1 == mem2node__node(&map, 0x1050));
|
|
|
|
for (i = 0; i < ARRAY_SIZE(nodes); i++)
|
|
free(nodes[i].set);
|
|
|
|
mem2node__exit(&map);
|
|
return 0;
|
|
}
|