From: Valerie Aurora <vaurora@redhat.com>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: viro@zeniv.linux.org.uk, jblunck@suse.de, hch@infradead.org,
linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
tytso@mit.edu, linux-ext4@vger.kernel.org
Subject: Re: [PATCH 23/39] fallthru: ext2 fallthru support
Date: Tue, 17 Aug 2010 18:28:47 -0400 [thread overview]
Message-ID: <20100817222847.GJ5556@shell> (raw)
In-Reply-To: <E1Ojufy-0004Df-PA@pomaz-ex.szeredi.hu>
On Fri, Aug 13, 2010 at 03:52:02PM +0200, Miklos Szeredi wrote:
> On Sun, 8 Aug 2010, Valerie Aurora wrote:
> > Add support for fallthru directory entries to ext2.
>
> This still doesn't work correctly, only now after unmounting/mounting
> the top layer the directory appears empty:
Thanks, I will look into this.
-VAL
> uml:~# mount -oloop -r ext3.img /mnt/img/
> uml:~# losetup /dev/loop2 ovl.img
> uml:~# /host/store/git/e2fsprogs/misc/mke2fs -O whiteout,fallthru /dev/loop2
> mke2fs 1.41.12 (17-May-2010)
> Filesystem label=
> OS type: Linux
> Block size=1024 (log=0)
> Fragment size=1024 (log=0)
> Stride=0 blocks, Stripe width=0 blocks
> 1280 inodes, 10240 blocks
> 512 blocks (5.00%) reserved for the super user
> First data block=1
> Maximum filesystem blocks=10485760
> 2 block groups
> 8192 blocks per group, 8192 fragments per group
> 640 inodes per group
> Superblock backups stored on blocks:
> 8193
>
> Allocating group tables: done
> Writing inode tables: done
> Writing superblocks and filesystem accounting information: done
>
> This filesystem will be automatically checked every 24 mounts or
> 180 days, whichever comes first. Use tune2fs -c or -i to override.
> uml:~# mmount -b 8 -t ext2 /dev/loop2 /mnt/img/
> uml:~# "ls" /mnt/img
> lost+found union
> uml:~# "ls" /mnt/img/union
> 1 2 3
> uml:~# umount /mnt/img
> uml:~# mmount -b 8 -t ext2 /dev/loop2 /mnt/img/
> uml:~# ls -l /mnt/img/
> total 13
> drwx------ 2 root root 12288 Aug 13 13:42 lost+found
> drwxr-xr-x 2 root root 1024 Aug 13 13:42 union
> uml:~# ls -la /mnt/img/union/
> total 2
> drwxr-xr-x 2 root root 1024 Aug 13 13:42 .
> drwxr-xr-x 4 root root 1024 Aug 13 13:42 ..
> uml:~# grep /mnt/img /proc/self/mountinfo
> 21 12 7:0 / /mnt/img ro,relatime - ext3 /dev/loop0 ro,errors=continue,barrier=0,data=writeback
> 22 21 7:2 / /mnt/img rw,relatime,union - ext2 /dev/loop2 rw,errors=continue
>
> Thanks,
> Miklos
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next prev parent reply other threads:[~2010-08-17 22:28 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-08 15:52 [PATCH 00/39] Union mounts - return d_ino from lower fs Valerie Aurora
2010-08-08 15:52 ` [PATCH 01/39] VFS: Comment follow_mount() and friends Valerie Aurora
2010-08-08 15:52 ` [PATCH 02/39] VFS: Make lookup_hash() return a struct path Valerie Aurora
2010-08-08 15:52 ` [PATCH 03/39] VFS: Add read-only users count to superblock Valerie Aurora
2010-08-08 15:52 ` [PATCH 04/39] autofs4: Save autofs trigger's vfsmount in super block info Valerie Aurora
2010-08-08 15:52 ` [PATCH 05/39] whiteout/NFSD: Don't return information about whiteouts to userspace Valerie Aurora
2010-08-08 15:52 ` [PATCH 06/39] whiteout: Add vfs_whiteout() and whiteout inode operation Valerie Aurora
2010-08-08 15:52 ` [PATCH 07/39] whiteout: Set opaque flag if new directory was previously a whiteout Valerie Aurora
2010-08-08 15:52 ` [PATCH 08/39] whiteout: Allow removal of a directory with whiteouts Valerie Aurora
2010-08-08 15:52 ` [PATCH 09/39] whiteout: tmpfs whiteout support Valerie Aurora
2010-08-08 15:52 ` [PATCH 10/39] whiteout: Split of ext2_append_link() from ext2_add_link() Valerie Aurora
2010-08-08 15:52 ` [PATCH 11/39] whiteout: ext2 whiteout support Valerie Aurora
2010-08-08 15:52 ` [PATCH 12/39] whiteout: jffs2 " Valerie Aurora
2010-08-08 15:52 ` [PATCH 13/39] fallthru: Basic fallthru definitions Valerie Aurora
2010-08-08 15:52 ` [PATCH 14/39] union-mount: Union mounts documentation Valerie Aurora
2010-08-09 22:56 ` Neil Brown
2010-08-11 1:51 ` J. R. Okajima
2010-08-17 20:44 ` Valerie Aurora
2010-08-17 22:53 ` Neil Brown
2010-08-18 0:15 ` Luca Barbieri
2010-08-18 19:04 ` Valerie Aurora
2010-08-18 1:23 ` J. R. Okajima
2010-08-18 18:55 ` Valerie Aurora
2010-08-19 1:34 ` J. R. Okajima
2010-08-24 0:05 ` Valerie Aurora
2010-08-24 2:28 ` J. R. Okajima
2010-08-24 20:48 ` Valerie Aurora
2010-08-25 2:59 ` Christian Stroetmann
2010-08-25 5:03 ` J. R. Okajima
2010-08-08 15:52 ` [PATCH 15/39] union-mount: Introduce MNT_UNION and MS_UNION flags Valerie Aurora
2010-08-08 15:52 ` [PATCH 16/39] union-mount: Introduce union_dir structure and basic operations Valerie Aurora
2010-08-08 15:52 ` [PATCH 17/39] union-mount: Free union dirs on removal from dcache Valerie Aurora
2010-08-08 15:52 ` [PATCH 18/39] union-mount: Support for union mounting file systems Valerie Aurora
2010-08-08 15:52 ` [PATCH 19/39] union-mount: Implement union lookup Valerie Aurora
2010-08-13 13:49 ` Miklos Szeredi
2010-08-17 21:44 ` Valerie Aurora
2010-08-18 8:11 ` Miklos Szeredi
2010-08-08 15:52 ` [PATCH 20/39] union-mount: Call do_whiteout() on unlink and rmdir in unions Valerie Aurora
2010-08-08 15:52 ` [PATCH 21/39] union-mount: Copy up directory entries on first readdir() Valerie Aurora
2010-08-08 15:52 ` [PATCH 22/39] union-mount: Add generic_readdir_fallthru() helper Valerie Aurora
2010-08-08 15:52 ` [PATCH 23/39] fallthru: ext2 fallthru support Valerie Aurora
2010-08-13 13:52 ` Miklos Szeredi
2010-08-17 21:08 ` Valerie Aurora
2010-08-17 22:28 ` Valerie Aurora [this message]
2010-08-08 15:52 ` [PATCH 24/39] fallthru: jffs2 " Valerie Aurora
2010-08-08 15:52 ` [PATCH 25/39] fallthru: tmpfs " Valerie Aurora
2010-08-08 15:52 ` [PATCH 26/39] VFS: Split inode_permission() and create path_permission() Valerie Aurora
2010-08-08 15:52 ` [PATCH 27/39] VFS: Create user_path_nd() to lookup both parent and target Valerie Aurora
2010-08-08 15:52 ` [PATCH 28/39] union-mount: In-kernel file copyup routines Valerie Aurora
2010-08-08 15:52 ` [PATCH 29/39] union-mount: Implement union-aware access()/faccessat() Valerie Aurora
2010-08-08 15:52 ` [PATCH 30/39] union-mount: Implement union-aware link() Valerie Aurora
2010-08-08 15:52 ` [PATCH 31/39] union-mount: Implement union-aware rename() Valerie Aurora
2010-08-08 15:52 ` [PATCH 32/39] union-mount: Implement union-aware writable open() Valerie Aurora
2010-08-08 15:52 ` [PATCH 33/39] union-mount: Implement union-aware chown() Valerie Aurora
2010-08-08 15:52 ` [PATCH 34/39] union-mount: Implement union-aware truncate() Valerie Aurora
2010-08-08 15:52 ` [PATCH 35/39] union-mount: Implement union-aware chmod()/fchmodat() Valerie Aurora
2010-08-08 15:52 ` [PATCH 36/39] union-mount: Implement union-aware lchown() Valerie Aurora
2010-08-08 15:52 ` [PATCH 37/39] union-mount: Implement union-aware utimensat() Valerie Aurora
2010-08-08 15:52 ` [PATCH 38/39] union-mount: Implement union-aware setxattr() Valerie Aurora
2010-08-08 15:52 ` [PATCH 39/39] union-mount: Implement union-aware lsetxattr() Valerie Aurora
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