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| author | Sven Eckelmann | 2010-09-18 21:01:14 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2010-09-21 01:29:48 +0200 |
| commit | 67c3b705934af93a09a0f369346c2561499b73c4 (patch) | |
| tree | 5dea1b9e38904b368bc768432f5864fd5eaf482a | |
| parent | Staging: batman-adv: Mark debugfs files as nonseekable (diff) | |
| download | kernel-qcow2-linux-67c3b705934af93a09a0f369346c2561499b73c4.tar.gz kernel-qcow2-linux-67c3b705934af93a09a0f369346c2561499b73c4.tar.xz kernel-qcow2-linux-67c3b705934af93a09a0f369346c2561499b73c4.zip | |
Staging: batman-adv: wait for call_rcu before unloading module
synchronize_rcu respective synchronize_net only waits for the rcu grace
period to elapse and we may fail to finish the calls which were made to
call_rcu in that time. In result the module could be unloaded during the
execution of the RCU callbacks.
rcu_barrier[1] will now wait for all outstanding RCU callbacks to finish
before continuing.
[1] Documentation/RCU/rcubarrier.txt
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/staging/batman-adv/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/batman-adv/main.c b/drivers/staging/batman-adv/main.c index 78ceebf75449..580ca02fc705 100644 --- a/drivers/staging/batman-adv/main.c +++ b/drivers/staging/batman-adv/main.c @@ -72,7 +72,7 @@ static void __exit batman_exit(void) destroy_workqueue(bat_event_workqueue); bat_event_workqueue = NULL; - synchronize_net(); + rcu_barrier(); } int mesh_init(struct net_device *soft_iface) |