[GFS2] Remove function gfs2_get_block

This patch is just a cleanup.  Function gfs2_get_block() just calls
function gfs2_block_map reversing the last two parameters.  By
reversing the parameters, gfs2_block_map() may be called directly
and function gfs2_get_block may be eliminated altogether.
Since this function is done for every block operation,
this streamlines the code and makes it a little bit more efficient.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 4996f0e..8b4c20c 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -276,7 +276,7 @@
 	offset = qd->qd_slot % sdp->sd_qc_per_block;;
 
 	bh_map.b_size = 1 << ip->i_inode.i_blkbits;
-	error = gfs2_block_map(&ip->i_inode, block, 0, &bh_map);
+	error = gfs2_block_map(&ip->i_inode, block, &bh_map, 0);
 	if (error)
 		goto fail;
 	error = gfs2_meta_read(ip->i_gl, bh_map.b_blocknr, DIO_WAIT, &bh);
@@ -645,7 +645,7 @@
 	}
 
 	if (!buffer_mapped(bh)) {
-		gfs2_get_block(inode, iblock, bh, 1);
+		gfs2_block_map(inode, iblock, bh, 1);
 		if (!buffer_mapped(bh))
 			goto unlock;
 	}