[Ocfs2-devel] [BUGFIX][PATCH 0/3] configfs: symlink() fixes
Louis Rilling
louis.rilling at kerlabs.com
Tue Jun 17 10:37:20 PDT 2008
[ applies on top of the previously submitted rename() vs rmdir() deadlock fix ]
Hi,
The following patchset fixes incorrect symlinks to dead items in configfs, which
are forbidden by specification.
The first patch actually prevents such dangling symlinks from being created, but
introduces a weird(?) behavior where a failing symlink() can make a racing
rmdir() fail in the symlink's parent and in the symlink's target as well. The
next patches prevent this behavior using a similar idea as for the mkdir() vs
rmdir() case previously submitted.
Summary:
configfs: Fix symlink() to a removing item
configfs: Rename CONFIGFS_USET_IN_MKDIR to CONFIGFS_USET_ATTACHING
configfs: Fix failing symlink() making rmdir() fail
fs/configfs/configfs_internal.h | 2 +-
fs/configfs/dir.c | 20 ++++++++++----------
fs/configfs/symlink.c | 33 +++++++++++++++++++++++++++++----
3 files changed, 40 insertions(+), 15 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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