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| author | Chris Mason <chris.mason@oracle.com> | 2007-03-22 12:13:20 -0400 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-03-22 12:13:20 -0400 |
| commit | e20d96d64f9cf9288ffecc9ad4714e91c3b97ca8 (patch) | |
| tree | fbe07d48bc7997226075169118ffa2a2e63f5d51 /fs/btrfs/hash.c | |
| parent | 2e635a278354a1a7951e16cfea4c247d6d0e7c99 (diff) | |
| download | lwn-e20d96d64f9cf9288ffecc9ad4714e91c3b97ca8.tar.gz lwn-e20d96d64f9cf9288ffecc9ad4714e91c3b97ca8.zip | |
Mountable btrfs, with readdir
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/hash.c')
| -rw-r--r-- | fs/btrfs/hash.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/hash.c b/fs/btrfs/hash.c index 6c2a71a46c7d..22519b8e0cf2 100644 --- a/fs/btrfs/hash.c +++ b/fs/btrfs/hash.c @@ -10,6 +10,7 @@ * License. */ +#include <linux/types.h> #define DELTA 0x9E3779B9 static void TEA_transform(__u32 buf[2], __u32 const in[]) @@ -63,6 +64,14 @@ int btrfs_name_hash(const char *name, int len, u64 *hash_result) const char *p; __u32 in[8], buf[2]; + if (len == 1 && *name == '.') { + *hash_result = 1; + return 0; + } else if (len == 2 && name[0] == '.' && name[1] == '.') { + *hash_result = 2; + return 0; + } + /* Initialize the default seed for the hash checksum functions */ buf[0] = 0x67452301; buf[1] = 0xefcdab89; |