fs/fscache: convert printk to pr_foo()

All printk converted to pr_foo() except internal.h: printk(KERN_DEBUG

Coalesce formats.

Add pr_fmt

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/fscache/operation.c b/fs/fscache/operation.c
index 318071a..e7b87a0 100644
--- a/fs/fscache/operation.c
+++ b/fs/fscache/operation.c
@@ -51,8 +51,7 @@
 		_debug("queue for caller's attention");
 		break;
 	default:
-		printk(KERN_ERR "FS-Cache: Unexpected op type %lx",
-		       op->flags);
+		pr_err("Unexpected op type %lx", op->flags);
 		BUG();
 		break;
 	}