Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757992AbaKTRDL (ORCPT ); Thu, 20 Nov 2014 12:03:11 -0500 Received: from mail-wi0-f175.google.com ([209.85.212.175]:45096 "EHLO mail-wi0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757974AbaKTRDG (ORCPT ); Thu, 20 Nov 2014 12:03:06 -0500 Date: Thu, 20 Nov 2014 18:03:13 +0100 From: Miklos Szeredi To: Al Viro Cc: Linus Torvalds , Patrick Frisch , Aaron Campbell , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org Subject: [RFC/RFT] multi-layer support for overlay filesystem Message-ID: <20141120170313.GC3596@tucsk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Here's the latest patchset to support multiple read-only layers for overlayfs. Diffstat is against overlayfs-current branch. git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-next I hope to have this included in 3.19. Please review and test (I can post the full patchset if someone wants that). 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(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/