#include <linux/ioctl32.h>
+struct super_block;
+
/*
* block_dev.c
*/
+#ifdef CONFIG_BLOCK
extern struct super_block *blockdev_superblock;
extern void __init bdev_cache_init(void);
+static inline int sb_is_blkdev_sb(struct super_block *sb)
+{
+ return sb == blockdev_superblock;
+}
+
+#else
+static inline void bdev_cache_init(void)
+{
+}
+
+static inline int sb_is_blkdev_sb(struct super_block *sb)
+{
+ return 0;
+}
+#endif
+
/*
* char_dev.c
*/