ext4: remove #ifdef CONFIG_EXT4_INDEX

CONFIG_EXT4_INDEX is not an exposed config option in the kernel, and it is
unconditionally defined in ext4_fs.h.  tune2fs is already able to turn off
dir indexing, so at this point it's just cluttering up the code.  Remove
it.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

1 files changed, 2 insertions, 12 deletions

diff --git a/include/linux/ext4_fs.h b/include/linux/ext4_fs.h
index 3baeb996fd3f..151738af6be2 100644
--- a/include/linux/ext4_fs.h
+++ b/include/linux/ext4_fs.h
@@ -36,10 +36,6 @@
 /*max window size: 1024(direct blocks) + 3([t,d]indirect blocks) */
 #define EXT4_MAX_RESERVE_BLOCKS         1027
 #define EXT4_RESERVE_WINDOW_NOT_ALLOCATED 0
-/*
- * Always enable hashed directories
- */
-#define CONFIG_EXT4_INDEX
 
 /*
  * Debug code
@@ -766,17 +762,11 @@ struct ext4_dir_entry_2 {
  * (c) Daniel Phillips, 2001
  */
 
-#ifdef CONFIG_EXT4_INDEX
-  #define is_dx(dir) (EXT4_HAS_COMPAT_FEATURE(dir->i_sb, \
-                                              EXT4_FEATURE_COMPAT_DIR_INDEX) && \
+#define is_dx(dir) (EXT4_HAS_COMPAT_FEATURE(dir->i_sb, \
+                                      EXT4_FEATURE_COMPAT_DIR_INDEX) && \
                       (EXT4_I(dir)->i_flags & EXT4_INDEX_FL))
 #define EXT4_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT4_LINK_MAX)
 #define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
-#else
-  #define is_dx(dir) 0
-#define EXT4_DIR_LINK_MAX(dir) ((dir)->i_nlink >= EXT4_LINK_MAX)
-#define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2)
-#endif
 
 /* Legal values for the dx_root hash_version field: */