staging: lustre: remove ll_invalidate_bdev()

It was a wrapper around invalidate_bdev(), totally useless.

Cc: Peng Tao <tao.peng@emc.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/lustre/include/linux/lustre_compat25.h

@@ -95,8 +95,6 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
 #define TREE_READ_LOCK_IRQ(mapping)	spin_lock_irq(&(mapping)->tree_lock)
 #define TREE_READ_UNLOCK_IRQ(mapping)	spin_unlock_irq(&(mapping)->tree_lock)
 
-#define ll_invalidate_bdev(a,b)	 invalidate_bdev((a))
-
 #ifndef FS_HAS_FIEMAP
 #define FS_HAS_FIEMAP			(0)
 #endif

drivers/staging/lustre/lustre/llite/lloop.c

@@ -573,7 +573,7 @@ static int loop_clr_fd(struct lloop_device *lo, struct block_device *bdev,
 	lo->lo_offset = 0;
 	lo->lo_sizelimit = 0;
 	lo->lo_flags = 0;
-	ll_invalidate_bdev(bdev, 0);
+	invalidate_bdev(bdev);
 	set_capacity(disks[lo->lo_number], 0);
 	bd_set_size(bdev, 0);
 	mapping_set_gfp_mask(filp->f_mapping, gfp);