[PATCH] fix compile error while opening the macro DOUBLE_CHECK

[<zhangaihua1@huawei.com>]

From: Aihua Zhang <zhangaihua1@huawei.com>

the error is:
    fs/ext4/mballoc.c:475:43: error: 'struct ext4_group_info' has
no member named 'bb_bitmap'.
    so, the definition of macro DOUBLE_CHECK should before
'struct ext4_group_info', I fixed it, and I moved the macro
AGGRESSIVE_CHECK together, because I think they shoule be together.

Signed-off-by: Aihua Zhang <zhangaihua1@huawei.com>
---
 fs/ext4/ext4.h    |   12 ++++++++++++
 fs/ext4/mballoc.h |   12 ------------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 750063f..04a3732 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -41,6 +41,18 @@
  */
 
 /*
+ * with AGGRESSIVE_CHECK allocator runs consistency checks over
+ * structures. these checks slow things down a lot
+ */
+#define AGGRESSIVE_CHECK__
+
+/*
+ * with DOUBLE_CHECK defined mballoc creates persistent in-core
+ * bitmaps, maintains and uses them to check for double allocations
+ */
+#define DOUBLE_CHECK__
+
+/*
  * Define EXT4FS_DEBUG to produce debug messages
  */
 #undef EXT4FS_DEBUG
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index d634e18..3ef1df6 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -23,18 +23,6 @@
 #include "ext4.h"
 
 /*
- * with AGGRESSIVE_CHECK allocator runs consistency checks over
- * structures. these checks slow things down a lot
- */
-#define AGGRESSIVE_CHECK__
-
-/*
- * with DOUBLE_CHECK defined mballoc creates persistent in-core
- * bitmaps, maintains and uses them to check for double allocations
- */
-#define DOUBLE_CHECK__