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| author | David Woodhouse <David.Woodhouse@intel.com> | 2008-08-19 20:21:57 +0200 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 17:04:06 +0200 |
| commit | 615f996fb8185a0bc02812ebd72cb77ded5645f1 (patch) | |
| tree | 0e97c4fd52b44d603e589e41c90892739e6f5a30 /fs/btrfs/hash.h | |
| parent | Btrfs: Reinstate '-osubvol=.' option to mount entire tree (diff) | |
| download | linux-615f996fb8185a0bc02812ebd72cb77ded5645f1.tar.xz linux-615f996fb8185a0bc02812ebd72cb77ded5645f1.zip | |
Switch btrfs_name_hash() to crc32c
Date: Tue, 19 Aug 2008 19:21:57 +0100
Using a 64-bit hash as the readdir cookie is just asking for trouble.
And gets it, when we try to export the file system by NFS.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/hash.h')
| -rw-r--r-- | fs/btrfs/hash.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/btrfs/hash.h b/fs/btrfs/hash.h index 868ee17ca77a..2a020b276768 100644 --- a/fs/btrfs/hash.h +++ b/fs/btrfs/hash.h @@ -18,5 +18,10 @@ #ifndef __HASH__ #define __HASH__ -u64 btrfs_name_hash(const char *name, int len); + +#include "crc32c.h" +static inline u64 btrfs_name_hash(const char *name, int len) +{ + return btrfs_crc32c((u32)~1, name, len); +} #endif |