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libperf: Adopt perf_mmap__get() function from tools/perf

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Move perf_mmap__get() from tools/perf to libperf in the internal header
internal/mmap.h.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20191007125344.14268-6-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2019-10-07 14:53:13 +02:00
committed by Arnaldo Carvalho de Melo
parent 32c261c070
commit e75710f063
6 changed files with 8 additions and 8 deletions
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5
tools/perf/util/mmap.c
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@@ -110,11 +110,6 @@ static bool perf_mmap__empty(struct mmap *map)
return perf_mmap__read_head(map) == map->core.prev && !map->auxtrace_mmap.base;
}
void perf_mmap__get(struct mmap *map)
{
refcount_inc(&map->core.refcnt);
}
void perf_mmap__put(struct mmap *map)
{
BUG_ON(map->core.base && refcount_read(&map->core.refcnt) == 0);