[GFS2] Casts for printing 64bit numbers

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index c1c6fa9..691e6f3 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1165,7 +1165,7 @@
 	rgd = gfs2_blk2rgrpd(sdp, bstart);
 	if (!rgd) {
 		if (gfs2_consist(sdp))
-			fs_err(sdp, "block = %llu\n", bstart);
+			fs_err(sdp, "block = %llu\n", (unsigned long long)bstart);
 		return NULL;
 	}
 
@@ -1452,7 +1452,7 @@
 	rgd = gfs2_blk2rgrpd(sdp, block);
 	if (!rgd) {
 		if (gfs2_consist(sdp))
-			fs_err(sdp, "block = %llu\n", block);
+			fs_err(sdp, "block = %llu\n", (unsigned long long)block);
 		return;
 	}