From bf59b3053e63783520c2810fc3f676553bc7eedd Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@kernel.org>
Date: Mon, 7 Oct 2019 14:53:11 +0200
Subject: 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>
---
 tools/perf/lib/include/internal/mmap.h | 2 ++
 tools/perf/lib/mmap.c                  | 6 ++++++
 2 files changed, 8 insertions(+)

(limited to 'tools/perf/lib')

diff --git a/tools/perf/lib/include/internal/mmap.h b/tools/perf/lib/include/internal/mmap.h
index b26806b36bb6..e7a67260940c 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 */
diff --git a/tools/perf/lib/mmap.c b/tools/perf/lib/mmap.c
index 3da6177510e6..cc4284da4d99 100644
--- a/tools/perf/lib/mmap.c
+++ b/tools/perf/lib/mmap.c
@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <internal/mmap.h>
+#include <internal/lib.h>
 
 void perf_mmap__init(struct perf_mmap *map, bool overwrite)
 {
@@ -7,3 +8,8 @@ void perf_mmap__init(struct perf_mmap *map, bool overwrite)
 	map->overwrite = overwrite;
 	refcount_set(&map->refcnt, 0);
 }
+
+size_t perf_mmap__mmap_len(struct perf_mmap *map)
+{
+	return map->mask + 1 + page_size;
+}
-- 
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