[GFS2] Change all types to uX style

This makes all fixed size types have consistent names.

Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/lm_interface.h b/fs/gfs2/lm_interface.h
index 0bf4c27..e2dfc3d 100644
--- a/fs/gfs2/lm_interface.h
+++ b/fs/gfs2/lm_interface.h
@@ -160,7 +160,7 @@
 
 
 struct lm_lockname {
-	uint64_t ln_number;
+	u64 ln_number;
 	unsigned int ln_type;
 };