GFS2: Clean up duplicated setattr code

While preparing the last patch I noticed that the gfs2_setattr_simple
code had been duplicated into two other places. This patch updates
those to call gfs2_setattr_simple rather than open coding it.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

fs/gfs2/ops_inode.c

@@ -1069,7 +1069,6 @@ static int setattr_chown(struct inode *inode, struct iattr *attr)
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
-	struct buffer_head *dibh;
 	u32 ouid, ogid, nuid, ngid;
 	int error;
 
@@ -1100,16 +1099,10 @@ static int setattr_chown(struct inode *inode, struct iattr *attr)
 	if (error)
 		goto out_gunlock_q;
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
+	error = gfs2_setattr_simple(ip, attr);
 	if (error)
 		goto out_end_trans;
 
-	setattr_copy(inode, attr);
-	mark_inode_dirty(inode);
-	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-	gfs2_dinode_out(ip, dibh->b_data);
-	brelse(dibh);
-
 	if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) {
 		u64 blocks = gfs2_get_inode_blocks(&ip->i_inode);
 		gfs2_quota_change(ip, -blocks, ouid, ogid);

fs/gfs2/xattr.c

@@ -1296,10 +1296,8 @@ static int ea_acl_chmod_unstuffed(struct gfs2_inode *ip,
 
 int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data)
 {
-	struct inode *inode = &ip->i_inode;
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 	struct gfs2_ea_location el;
-	struct buffer_head *dibh;
 	int error;
 
 	error = gfs2_ea_find(ip, GFS2_EATYPE_SYS, GFS2_POSIX_ACL_ACCESS, &el);
@@ -1321,17 +1319,7 @@ int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data)
 	if (error)
 		return error;
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (error)
-		goto out_trans_end;
-
-	setattr_copy(inode, attr);
-	mark_inode_dirty(inode);
-	gfs2_trans_add_bh(ip->i_gl, dibh, 1);
-	gfs2_dinode_out(ip, dibh->b_data);
-	brelse(dibh);
-
-out_trans_end:
+	error = gfs2_setattr_simple(ip, attr);
 	gfs2_trans_end(sdp);
 	return error;
 }