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author | Theodore Ts'o <tytso@mit.edu> | 2008-10-28 17:21:44 (GMT) |
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committer | Theodore Ts'o <tytso@mit.edu> | 2008-10-28 17:21:44 (GMT) |
commit | f99b25897a86fcfff9140396a97261ae65fed872 (patch) | |
tree | 2191505f190d09ff31896487c73b8187cb475596 /fs/ext4/ext4_sb.h | |
parent | 5e1f8c9e20a92743eefc9a82c2db835213905e26 (diff) | |
download | linux-fsl-qoriq-f99b25897a86fcfff9140396a97261ae65fed872.tar.xz |
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_sb.h')
-rw-r--r-- | fs/ext4/ext4_sb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/ext4_sb.h b/fs/ext4/ext4_sb.h index b21f167..ad7ea09 100644 --- a/fs/ext4/ext4_sb.h +++ b/fs/ext4/ext4_sb.h @@ -57,6 +57,7 @@ struct ext4_sb_info { u32 s_next_generation; u32 s_hash_seed[4]; int s_def_hash_version; + int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */ struct percpu_counter s_freeblocks_counter; struct percpu_counter s_freeinodes_counter; struct percpu_counter s_dirs_counter; |