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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-01-31 00:37:19 +0100
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2014-02-23 18:01:11 +0100
commit4622b487ecf0094401ac10e504606e5cbdea5a6e (patch)
treed3548e9eca81a35029cf889ed4713743f08be4c8 /kernel/rcu
parentrcutorture: Print dates when doing parallel rcutorture runs (diff)
downloadlinux-4622b487ecf0094401ac10e504606e5cbdea5a6e.tar.xz
linux-4622b487ecf0094401ac10e504606e5cbdea5a6e.zip
rcutorture: Abstract torture_shutdown_notify()
Because handling the race between rmmod and system shutdown is not specific to RCU, this commit abstracts torture_shutdown_notify(), placing this code into kernel/torture.c. This change also allows fullstop_mutex to be private to kernel/torture.c. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/rcu')
-rw-r--r--kernel/rcu/rcutorture.c23
1 files changed, 0 insertions, 23 deletions
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 68a689fc6ffa..2560e9313887 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -190,23 +190,6 @@ static DECLARE_WAIT_QUEUE_HEAD(barrier_wq);
static void rcu_torture_cleanup(void);
/*
- * Detect and respond to a system shutdown.
- */
-static int
-rcutorture_shutdown_notify(struct notifier_block *unused1,
- unsigned long unused2, void *unused3)
-{
- mutex_lock(&fullstop_mutex);
- if (fullstop == FULLSTOP_DONTSTOP)
- fullstop = FULLSTOP_SHUTDOWN;
- else
- pr_warn(/* but going down anyway, so... */
- "Concurrent 'rmmod rcutorture' and shutdown illegal!\n");
- mutex_unlock(&fullstop_mutex);
- return NOTIFY_DONE;
-}
-
-/*
* Allocate an element from the rcu_tortures pool.
*/
static struct rcu_torture *
@@ -1098,10 +1081,6 @@ rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag)
onoff_interval, onoff_holdoff);
}
-static struct notifier_block rcutorture_shutdown_nb = {
- .notifier_call = rcutorture_shutdown_notify,
-};
-
static void rcutorture_booster_cleanup(int cpu)
{
struct task_struct *t;
@@ -1428,7 +1407,6 @@ rcu_torture_cleanup(void)
cur_ops->cb_barrier();
return;
}
- unregister_reboot_notifier(&rcutorture_shutdown_nb);
rcu_torture_barrier_cleanup();
rcu_torture_stall_cleanup();
@@ -1774,7 +1752,6 @@ rcu_torture_init(void)
firsterr = i;
goto unwind;
}
- register_reboot_notifier(&rcutorture_shutdown_nb);
i = rcu_torture_stall_init();
if (i != 0) {
firsterr = i;