[XFS] Don't error out on good I/Os.

xfsbdstrat() made all I/Os error out, good or bad. Fix it.

SGI-PV: 980084
SGI-Modid: xfs-linux-melb:xfs-kern:30836a
Signed-off-by: NDavid Chinner <dgc@sgi.com>
Signed-off-by: NDonald Douwsma <donaldd@sgi.com>
Signed-off-by: NLachlan McIlroy <lachlan@sgi.com>

fs/xfs/linux-2.6/xfs_lrw.c

@@ -885,8 +885,10 @@ xfsbdstrat(
 	struct xfs_buf		*bp)
 {
 	ASSERT(mp);
-	if (!XFS_FORCED_SHUTDOWN(mp))
+	if (!XFS_FORCED_SHUTDOWN(mp)) {
 		xfs_buf_iorequest(bp);
+		return;
+	}
 
 	xfs_buftrace("XFSBDSTRAT IOERROR", bp);
 	xfs_bioerror_relse(bp);