GFS2: Correctly set goal block after allocation

The new goal block should be set to the end of the newly
allocated extent, not the start of it.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 3088fb2..8ec4174 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1346,7 +1346,7 @@
 
 	rgd->rd_last_alloc = blk;
 	block = rgd->rd_data0 + blk;
-	ip->i_goal = block;
+	ip->i_goal = block + *n - 1;
 	error = gfs2_meta_inode_buffer(ip, &dibh);
 	if (error == 0) {
 		struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data;