Re: [BUGFIX][PATCH v2 0/2] configfs: Fix cleanup after mkdir()failure

From: Louis Rilling
Date: Fri Jul 04 2008 - 12:32:54 EST


Joel,

Sorry for posting to a wrong address (really fun to see you working at Kerlabs
;)). I've just discovered that git-send-email is case-sensitive with email
aliases while mutt is not...

Cheers,

Louis

On Fri, Jul 04, 2008 at 04:56:04PM +0200, Louis Rilling wrote:
> [ applies on top of http://lkml.org/lkml/2008/6/23/145 aka symlink() fixes ]
>
> Hi,
>
> This patchset fixes two kinds of bugs happening when
> configfs_attach_group()/configfs_attach_item() fail and userspace races with
> mkdir() or symlink().
>
> Please read the first patch header for a detailed scenario explaining the bugs.
>
> Louis
>
> Changelog:
> - Few code reworks as requested by Joel (details in patch headers)
>
> Summary (2):
> configfs: Prevent userspace from creating new entries under attaching
> directories
> configfs: Lock new directory inodes before removing on cleanup after
> failure
>
> fs/configfs/configfs_internal.h | 2 +
> fs/configfs/dir.c | 141 ++++++++++++++++++++++++++++++++-------
> fs/configfs/symlink.c | 15 ++++
> 3 files changed, 133 insertions(+), 25 deletions(-)
>
> --
> Dr Louis Rilling Kerlabs
> Skype: louis.rilling Batiment Germanium
> Phone: (+33|0) 6 80 89 08 23 80 avenue des Buttes de Coesmes
> http://www.kerlabs.com/ 35700 Rennes
> --
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--
Dr Louis Rilling Kerlabs
Skype: louis.rilling Batiment Germanium
Phone: (+33|0) 6 80 89 08 23 80 avenue des Buttes de Coesmes
http://www.kerlabs.com/ 35700 Rennes

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