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authorTheodore Ts'o <tytso@mit.edu>2008-10-28 13:21:44 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-10-28 13:21:44 -0400
commitf99b25897a86fcfff9140396a97261ae65fed872 (patch)
tree2191505f190d09ff31896487c73b8187cb475596 /fs/ext4/ext4.h
parent5e1f8c9e20a92743eefc9a82c2db835213905e26 (diff)
ext4: Add support for non-native signed/unsigned htree hash algorithms
The original ext3 hash algorithms assumed that variables of type char were signed, as God and K&R intended. Unfortunately, this assumption is not true on some architectures. Userspace support for marking filesystems with non-native signed/unsigned chars was added two years ago, but the kernel-side support was never added (until now). Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r--fs/ext4/ext4.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index b0537c82702..8370ffd2d62 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -891,6 +891,9 @@ static inline __le16 ext4_rec_len_to_disk(unsigned len)
#define DX_HASH_LEGACY 0
#define DX_HASH_HALF_MD4 1
#define DX_HASH_TEA 2
+#define DX_HASH_LEGACY_UNSIGNED 3
+#define DX_HASH_HALF_MD4_UNSIGNED 4
+#define DX_HASH_TEA_UNSIGNED 5
#ifdef __KERNEL__