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| author | Satyam Sharma <ssatyam@cse.iitk.ac.in> | 2007-05-08 09:18:58 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2007-07-09 08:22:10 +0100 |
| commit | 3168b0780d06ace875696f8a648d04d6089654e5 (patch) | |
| tree | b93814b13155cce67432e1ed11bee58c9a5d5a50 /fs/gfs2/rgrp.c | |
| parent | b524fe646c9a226a847e30ca1221dc22e952f16b (diff) | |
| download | op-kernel-dev-3168b0780d06ace875696f8a648d04d6089654e5.zip op-kernel-dev-3168b0780d06ace875696f8a648d04d6089654e5.tar.gz | |
[DLM] fix a couple of races
Fix two races in fs/dlm/config.c:
(1) Grab the configfs subsystem semaphore before calling
config_group_find_obj() in get_space(). This solves a potential race
between get_space() and concurrent mkdir(2) or rmdir(2).
(2) Grab a reference on the found config_item _while_ holding the configfs
subsystem semaphore in get_comm(), and not after it. This solves a
potential race between get_comm() and concurrent rmdir(2).
Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.c')
0 files changed, 0 insertions, 0 deletions
