ext4: rename s_resize_flags to s_ext4_flags

We are currently using one bit in s_resize_flags; rename it in order
to allow more of the bits in that unsigned long for other purposes.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 1cd077e..2e7e02f 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1399,8 +1399,7 @@ struct ext4_sb_info {
 	struct journal_s *s_journal;
 	struct list_head s_orphan;
 	struct mutex s_orphan_lock;
-	unsigned long s_resize_flags;		/* Flags indicating if there
-						   is a resizer */
+	unsigned long s_ext4_flags;		/* Ext4 superblock flags */
 	unsigned long s_commit_interval;
 	u32 s_max_batch_time;
 	u32 s_min_batch_time;
@@ -1834,6 +1833,12 @@ static inline bool ext4_has_incompat_features(struct super_block *sb)
 }
 
 /*
+ * Superblock flags
+ */
+#define EXT4_FLAGS_RESIZING	0
+
+
+/*
  * Default values for user and/or group using reserved blocks
  */
 #define	EXT4_DEF_RESUID		0
@@ -3217,7 +3222,6 @@ static inline void ext4_inode_resume_unlocked_dio(struct inode *inode)
 					    EXT4_WQ_HASH_SZ])
 extern wait_queue_head_t ext4__ioend_wq[EXT4_WQ_HASH_SZ];
 
-#define EXT4_RESIZING	0
 extern int ext4_resize_begin(struct super_block *sb);
 extern void ext4_resize_end(struct super_block *sb);