linux-kernel - Re: [PATCH 0/9] overlay filesystem: request for inclusion (v17)

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Date:	Wed, 13 Mar 2013 15:31:31 +0100
From:	Sedat Dilek <sedat.dilek@...il.com>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	viro@...iv.linux.org.uk, torvalds@...ux-foundation.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	hch@...radead.org, akpm@...ux-foundation.org, apw@...onical.com,
	nbd@...nwrt.org, neilb@...e.de, jordipujolp@...il.com,
	ezk@....cs.sunysb.edu, dhowells@...hat.com,
	sedat.dilek@...glemail.com, hooanon05@...oo.co.jp, mszeredi@...e.cz
Subject: Re: [PATCH 0/9] overlay filesystem: request for inclusion (v17)

On Wed, Mar 13, 2013 at 3:16 PM, Miklos Szeredi <miklos@...redi.hu> wrote:
> Here's another version with the comments addressed plus a small bugfix and some
> checkpatch cleanups.
>
> Changes in v17:
>
>  - fix wrong return value in a failure path in ovl_link()
>  - fix subjects
>  - use file_inode() and MODULE_ALIAS_FS()
>  - fold bugfix patches
>  - checkpatch cleanups
>
> Git tree is here:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs.current
>

Hi,

I pulled in v17 (current) into Linux-Next (next-20130313) and built
OverlayFS as a module.

Unfortunately, I do not see any success message on loading it.

--- dmesg_3.9.0-rc2-next20130313-3-iniza-small.txt      2013-03-13
15:21:19.578712536 +0100
+++ dmesg_3.9.0-rc2-next20130313-3-iniza-small_after-overlayfs-test.txt
2013-03-13 15:22:14.658238998 +0100
@@ -806,3 +806,8 @@
 [   25.517154] wlan0: associated
 [   25.517214] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
 [   54.149536] usb 2-1.5: USB disconnect, device number 3
+[   86.502215] squashfs: version 4.0 (2009/01/31) Phillip Lougher
+[   87.007082] EXT4-fs (loop4): mounted filesystem with ordered data
mode. Opts: (null)
+[   87.311998] EXT4-fs (loop4): re-mounted. Opts: data=ordered
+[   87.657291] EXT4-fs (loop4): re-mounted. Opts: data=ordered
+[   88.057251] EXT4-fs (loop4): re-mounted. Opts: data=ordered

Highly appreciated to see such a message!

Test-case script attached (needs an additional patch on top of
overlayfs.current, see attachments).

- Sedat -

> Thanks,
> Miklos
>
> ---
> Andy Whitcroft (1):
>       overlayfs: add statfs support
>
> Erez Zadok (1):
>       overlayfs: implement show_options
>
> Miklos Szeredi (6):
>       vfs: add i_op->dentry_open()
>       vfs: export do_splice_direct() to modules
>       vfs: export __inode_permission() to modules
>       vfs: introduce clone_private_mount()
>       overlay filesystem
>       fs: limit filesystem stacking depth
>
> Neil Brown (1):
>       overlay: overlay filesystem documentation
>
> ---
>  Documentation/filesystems/Locking       |    2 +
>  Documentation/filesystems/overlayfs.txt |  199 +++++++++
>  Documentation/filesystems/vfs.txt       |    7 +
>  MAINTAINERS                             |    7 +
>  fs/Kconfig                              |    1 +
>  fs/Makefile                             |    1 +
>  fs/ecryptfs/main.c                      |    7 +
>  fs/internal.h                           |    5 -
>  fs/namei.c                              |   10 +-
>  fs/namespace.c                          |   18 +
>  fs/open.c                               |   23 +-
>  fs/overlayfs/Kconfig                    |   10 +
>  fs/overlayfs/Makefile                   |    7 +
>  fs/overlayfs/copy_up.c                  |  385 +++++++++++++++++
>  fs/overlayfs/dir.c                      |  605 +++++++++++++++++++++++++++
>  fs/overlayfs/inode.c                    |  372 +++++++++++++++++
>  fs/overlayfs/overlayfs.h                |   70 ++++
>  fs/overlayfs/readdir.c                  |  566 +++++++++++++++++++++++++
>  fs/overlayfs/super.c                    |  686 +++++++++++++++++++++++++++++++
>  fs/splice.c                             |    1 +
>  include/linux/fs.h                      |   14 +
>  include/linux/mount.h                   |    3 +
>  22 files changed, 2989 insertions(+), 10 deletions(-)
>  create mode 100644 Documentation/filesystems/overlayfs.txt
>  create mode 100644 fs/overlayfs/Kconfig
>  create mode 100644 fs/overlayfs/Makefile
>  create mode 100644 fs/overlayfs/copy_up.c
>  create mode 100644 fs/overlayfs/dir.c
>  create mode 100644 fs/overlayfs/inode.c
>  create mode 100644 fs/overlayfs/overlayfs.h
>  create mode 100644 fs/overlayfs/readdir.c
>  create mode 100644 fs/overlayfs/super.c
>

Download attachment "run_overlayfs-test.sh" of type "application/x-sh" (4925 bytes)

Download attachment "3.9.0-rc2-next20130313-3-iniza-small.patch" of type "application/octet-stream" (87319 bytes)