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linux/tools/perf/util/mem-info.c
Ian Rogers 1a8c2e0177 perf mem-info: Add reference count checking
Add reference count checking and switch 'struct mem_info' usage to use
accessor functions.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ben Gainey <ben.gainey@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Li Dong <lidong@vivo.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Paran Lee <p4ranlee@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/20240507183545.1236093-8-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2024-05-07 18:06:44 -03:00

35 lines
712 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/zalloc.h>
#include "mem-info.h"
struct mem_info *mem_info__get(struct mem_info *mi)
{
struct mem_info *result;
if (RC_CHK_GET(result, mi))
refcount_inc(mem_info__refcnt(mi));
return result;
}
void mem_info__put(struct mem_info *mi)
{
if (mi && refcount_dec_and_test(mem_info__refcnt(mi))) {
addr_map_symbol__exit(mem_info__iaddr(mi));
addr_map_symbol__exit(mem_info__daddr(mi));
RC_CHK_FREE(mi);
} else {
RC_CHK_PUT(mi);
}
}
struct mem_info *mem_info__new(void)
{
struct mem_info *result = NULL;
RC_STRUCT(mem_info) *mi = zalloc(sizeof(*mi));
if (ADD_RC_CHK(result, mi))
refcount_set(mem_info__refcnt(result), 1);
return result;
}