diff options
| author | Sachin Prabhu <sprabhu@redhat.com> | 2010-03-13 09:03:55 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-26 07:47:58 -0700 |
| commit | b5cc76ffd6a95b4281580c7bc0dbfca70c23369e (patch) | |
| tree | 27d5f658e8b45d03d98de4709ef731b999132bcc /include | |
| parent | 53d737879cbbe3886e26f155007dbc148aec1cb6 (diff) | |
9p: Skip check for mandatory locks when unlocking
commit f78233dd44a110c574fe760ad6f9c1e8741a0d00 upstream.
While investigating a bug, I came across a possible bug in v9fs. The
problem is similar to the one reported for NFS by ASANO Masahiro in
http://lkml.org/lkml/2005/12/21/334.
v9fs_file_lock() will skip locks on file which has mode set to 02666.
This is a problem in cases where the mode of the file is changed after
a process has obtained a lock on the file. Such a lock will be skipped
during unlock and the machine will end up with a BUG in
locks_remove_flock().
v9fs_file_lock() should skip the check for mandatory locks when
unlocking a file.
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Cc: maximilian attems <max@stro.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions