[Ocfs2-devel] [BUGFIX][PATCH v2 0/2] configfs: Fix cleanup after mkdir() failure
Louis Rilling
louis.rilling at kerlabs.com
Fri Jul 4 07:56:04 PDT 2008
[ 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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