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authorChris Mason <chris.mason@oracle.com>2009-01-06 09:17:51 -0500
committerChris Mason <chris.mason@oracle.com>2009-01-06 09:17:51 -0500
commit860a7a0c321ce0267fdb6ebdcd03aa63c5fcb31d (patch)
tree55f3e8e388c5836e42489e1114af6200bf6366a9 /fs/btrfs/hash.h
parent4a6908a3a050aacc9c3a2f36b276b46c0629ad91 (diff)
parent43b774ba1378dc5e952aadb829048bbe90ba33e4 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Diffstat (limited to 'fs/btrfs/hash.h')
-rw-r--r--fs/btrfs/hash.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/btrfs/hash.h b/fs/btrfs/hash.h
new file mode 100644
index 00000000000..2a020b27676
--- /dev/null
+++ b/fs/btrfs/hash.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2007 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef __HASH__
+#define __HASH__
+
+#include "crc32c.h"
+static inline u64 btrfs_name_hash(const char *name, int len)
+{
+ return btrfs_crc32c((u32)~1, name, len);
+}
+#endif