X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=hash.h;h=9ff67613330ecc8107aee1396799fedc9edc3b26;hb=f0a376df4733dc6f0f0cdc529f4e7df64806f3f6;hp=868ee17ca77a022a5fa2467419cbb69cffd38fed;hpb=8871a0eaa98d951727e97c615d831af9a60432ae;p=platform%2Fupstream%2Fbtrfs-progs.git

diff --git a/hash.h b/hash.h
index 868ee17..9ff6761 100644
--- a/hash.h
+++ b/hash.h
@@ -16,7 +16,23 @@
  * Boston, MA 021110-1307, USA.
  */
 
-#ifndef __HASH__
-#define __HASH__
-u64 btrfs_name_hash(const char *name, int len);
+#ifndef __BTRFS_HASH_H__
+#define __BTRFS_HASH_H__
+
+#include "crc32c.h"
+
+static inline u64 btrfs_name_hash(const char *name, int len)
+{
+	return crc32c((u32)~1, name, len);
+}
+
+/*
+ * Figure the key offset of an extended inode ref
+ */
+static inline u64 btrfs_extref_hash(u64 parent_objectid, const char *name,
+				    int len)
+{
+	return (u64)btrfs_crc32c(parent_objectid, name, len);
+}
+
 #endif