block: fix oops in blk_queue_io_stat()

[safe/jmp/linux-2.6] / block / blk.h

diff --git a/block/blk.h b/block/blk.h
index 6e1ed40..0dce92c 100644 (file)
--- a/block/blk.h
+++ b/block/blk.h
@@ -108,4 +108,12 @@ static inline int blk_cpu_to_group(int cpu)
 #endif
 }
 
+static inline int blk_do_io_stat(struct request_queue *q)
+{
+       if (q)
+               return blk_queue_io_stat(q);
+
+       return 0;
+}
+
 #endif