libperf: Adopt perf_mmap__mmap_len() function from tools/perf
Move perf_mmap__mmap_len() from tools/perf wto libperf, it will be used
in the following patches. And rename the existing perf's function to
mmap__mmap_len().
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/20191007125344.14268-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/lib/include/internal/mmap.h b/tools/perf/lib/include/internal/mmap.h
index b26806b..e7a6726 100644
--- a/tools/perf/lib/include/internal/mmap.h
+++ b/tools/perf/lib/include/internal/mmap.h
@@ -34,6 +34,8 @@ struct perf_mmap_param {
int mask;
};
+size_t perf_mmap__mmap_len(struct perf_mmap *map);
+
void perf_mmap__init(struct perf_mmap *map, bool overwrite);
#endif /* __LIBPERF_INTERNAL_MMAP_H */