bcache: use kvfree() in various places

Use kvfree() instead of open-coding it.
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/md/bcache/super.c

@@ -760,14 +760,8 @@ static void bcache_device_free(struct bcache_device *d)
 	bio_split_pool_free(&d->bio_split_hook);
 	if (d->bio_split)
 		bioset_free(d->bio_split);
-	if (is_vmalloc_addr(d->full_dirty_stripes))
-		vfree(d->full_dirty_stripes);
-	else
-		kfree(d->full_dirty_stripes);
-	if (is_vmalloc_addr(d->stripe_sectors_dirty))
-		vfree(d->stripe_sectors_dirty);
-	else
-		kfree(d->stripe_sectors_dirty);
+	kvfree(d->full_dirty_stripes);
+	kvfree(d->stripe_sectors_dirty);
 
 	closure_debug_destroy(&d->cl);
 }

drivers/md/bcache/util.h

@@ -52,10 +52,7 @@ struct closure;
 
 #define free_heap(heap)							\
 do {									\
-	if (is_vmalloc_addr((heap)->data))				\
-		vfree((heap)->data);					\
-	else								\
-		kfree((heap)->data);					\
+	kvfree((heap)->data);						\
 	(heap)->data = NULL;						\
 } while (0)
 
@@ -163,10 +160,7 @@ do {									\
 
 #define free_fifo(fifo)							\
 do {									\
-	if (is_vmalloc_addr((fifo)->data))				\
-		vfree((fifo)->data);					\
-	else								\
-		kfree((fifo)->data);					\
+	kvfree((fifo)->data);						\
 	(fifo)->data = NULL;						\
 } while (0)