Messages in this thread | | | From | Louis Rilling <> | Subject | [BUGFIX][PATCH v2 0/2] configfs: Fix cleanup after mkdir() failure | Date | Fri, 4 Jul 2008 16:56:04 +0200 |
| |
[ 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
| |