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authorJiri Olsa <jolsa@kernel.org>2019-10-07 14:53:09 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-10-10 09:37:25 -0300
commit353120b48d4f61288e4745b0c8a191784b11c0f4 (patch)
treee0a8eb3397403227f4634cd7c29bb78dac87133e /tools/perf/lib/mmap.c
parent26d5310ee28ad9395bd676f750d2ee3ddff3dcfd (diff)
downloadlinux-353120b48d4f61288e4745b0c8a191784b11c0f4.tar.bz2
libperf: Add perf_mmap__init() function
Add perf_mmap__init() function to initialize 'struct perf_mmap' objects. Add it to a new mmap.c source file, that will carry all the mmap related functions. 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/20191007125344.14268-2-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/lib/mmap.c')
-rw-r--r--tools/perf/lib/mmap.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/lib/mmap.c b/tools/perf/lib/mmap.c
new file mode 100644
index 000000000000..3da6177510e6
--- /dev/null
+++ b/tools/perf/lib/mmap.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <internal/mmap.h>
+
+void perf_mmap__init(struct perf_mmap *map, bool overwrite)
+{
+ map->fd = -1;
+ map->overwrite = overwrite;
+ refcount_set(&map->refcnt, 0);
+}