| Chris Mason | 6cbd557 | 2007-06-12 09:07:21 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 Oracle. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public |
| 6 | * License v2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public |
| 14 | * License along with this program; if not, write to the |
| 15 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 16 | * Boston, MA 021110-1307, USA. |
| 17 | */ |
| 18 | |
| Chris Mason | 24af03e | 2007-03-15 12:57:43 -0400 | [diff] [blame] | 19 | #ifndef __HASH__ |
| 20 | #define __HASH__ |
| David Woodhouse | 615f996 | 2008-08-19 19:21:57 +0100 | [diff] [blame] | 21 | |
| David Woodhouse | 163e783 | 2009-04-19 13:02:41 +0100 | [diff] [blame] | 22 | #include <linux/crc32c.h> |
| David Woodhouse | 615f996 | 2008-08-19 19:21:57 +0100 | [diff] [blame] | 23 | static inline u64 btrfs_name_hash(const char *name, int len) |
| 24 | { |
| David Woodhouse | 163e783 | 2009-04-19 13:02:41 +0100 | [diff] [blame] | 25 | return crc32c((u32)~1, name, len); |
| David Woodhouse | 615f996 | 2008-08-19 19:21:57 +0100 | [diff] [blame] | 26 | } |
| Chris Mason | 24af03e | 2007-03-15 12:57:43 -0400 | [diff] [blame] | 27 | #endif |