[PATCH 1/2] perf: Add util/include/linuxhash.h to include hash.h of kernel

[Hitoshi Mitake]

linux/hash.h, hash header of kernel, is also useful for perf.
util/include/linuxhash.h includes linux/hash.h, so we can use
hash stuffs (e.g. hash_long()) in perf now.

Signed-off-by: Hitoshi Mitake <mitake@xxxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
---
 tools/perf/Makefile                  |    1 +
 tools/perf/util/include/linux/hash.h |    5 +++++
 2 files changed, 6 insertions(+), 0 deletions(-)
 create mode 100644 tools/perf/util/include/linux/hash.h

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 28b0258..aad2693 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -328,6 +328,7 @@ LIB_FILE=libperf.a
 LIB_H += ../../include/linux/perf_event.h
 LIB_H += ../../include/linux/rbtree.h
 LIB_H += ../../include/linux/list.h
+LIB_H += ../../include/linux/hash.h
 LIB_H += ../../include/linux/stringify.h
 LIB_H += util/include/linux/bitmap.h
 LIB_H += util/include/linux/bitops.h
diff --git a/tools/perf/util/include/linux/hash.h b/tools/perf/util/include/linux/hash.h
new file mode 100644
index 0000000..201f573
--- /dev/null
+++ b/tools/perf/util/include/linux/hash.h
@@ -0,0 +1,5 @@
+#include "../../../../include/linux/hash.h"
+
+#ifndef PERF_HASH_H
+#define PERF_HASH_H
+#endif
-- 
1.6.5.2

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