From: Miklos Szeredi Subject: [GIT PULL] multi-layer support for overlay filesystem Date: Tue, 9 Dec 2014 11:37:45 +0100 Message-ID: <20141209103745.GA32280@tucsk.suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mail-wg0-f51.google.com ([74.125.82.51]:34410 "EHLO mail-wg0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755389AbaLIKhb (ORCPT ); Tue, 9 Dec 2014 05:37:31 -0500 Received: by mail-wg0-f51.google.com with SMTP id x12so409803wgg.24 for ; Tue, 09 Dec 2014 02:37:29 -0800 (PST) Content-Disposition: inline Sender: linux-unionfs-owner@vger.kernel.org List-Id: linux-unionfs@vger.kernel.org To: Al Viro Cc: linux-unionfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Al, Please pull from git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-next This adds support for multiple read-only layers to overlayfs. It also makes the writable upper layer optional. Thanks, Miklos --- Miklos Szeredi (12): ovl: check whiteout while reading directory ovl: make path-type a bitmap ovl: dont replace opaque dir ovl: add mutli-layer infrastructure ovl: helper to iterate layers ovl: multi-layer readdir ovl: multi-layer lookup ovl: allow statfs if no upper layer ovl: mount: change order of initialization ovl: improve mount helpers ovl: make upperdir optional ovl: support multiple lower layers --- Documentation/filesystems/overlayfs.txt | 12 + fs/overlayfs/copy_up.c | 4 +- fs/overlayfs/dir.c | 24 +- fs/overlayfs/inode.c | 9 +- fs/overlayfs/overlayfs.h | 14 +- fs/overlayfs/readdir.c | 120 +++----- fs/overlayfs/super.c | 521 ++++++++++++++++++++------------ 7 files changed, 427 insertions(+), 277 deletions(-)