mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 21:24:08 +08:00
rcu: Use WARN_ON_ONCE for DEBUG_OBJECTS_RCU_HEAD warnings
Avoid additional multiple-warning confusion in memory-corruption scenarios. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
parent
561190e3b3
commit
108aae2233
@ -147,12 +147,12 @@ static int rcuhead_fixup_init(void *addr, enum debug_obj_state state)
|
||||
* attempt any fixup and just print a warning.
|
||||
*/
|
||||
#ifndef CONFIG_PREEMPT
|
||||
WARN_ON(1);
|
||||
WARN_ON_ONCE(1);
|
||||
return 0;
|
||||
#endif
|
||||
if (rcu_preempt_depth() != 0 || preempt_count() != 0 ||
|
||||
irqs_disabled()) {
|
||||
WARN_ON(1);
|
||||
WARN_ON_ONCE(1);
|
||||
return 0;
|
||||
}
|
||||
rcu_barrier();
|
||||
@ -196,12 +196,12 @@ static int rcuhead_fixup_activate(void *addr, enum debug_obj_state state)
|
||||
* attempt any fixup and just print a warning.
|
||||
*/
|
||||
#ifndef CONFIG_PREEMPT
|
||||
WARN_ON(1);
|
||||
WARN_ON_ONCE(1);
|
||||
return 0;
|
||||
#endif
|
||||
if (rcu_preempt_depth() != 0 || preempt_count() != 0 ||
|
||||
irqs_disabled()) {
|
||||
WARN_ON(1);
|
||||
WARN_ON_ONCE(1);
|
||||
return 0;
|
||||
}
|
||||
rcu_barrier();
|
||||
@ -233,12 +233,12 @@ static int rcuhead_fixup_free(void *addr, enum debug_obj_state state)
|
||||
* attempt any fixup and just print a warning.
|
||||
*/
|
||||
#ifndef CONFIG_PREEMPT
|
||||
WARN_ON(1);
|
||||
WARN_ON_ONCE(1);
|
||||
return 0;
|
||||
#endif
|
||||
if (rcu_preempt_depth() != 0 || preempt_count() != 0 ||
|
||||
irqs_disabled()) {
|
||||
WARN_ON(1);
|
||||
WARN_ON_ONCE(1);
|
||||
return 0;
|
||||
}
|
||||
rcu_barrier();
|
||||
|
Loading…
Reference in New Issue
Block a user