rcu: Reset rcu_fanout_leaf if out of bounds
Currently if the rcu_fanout_leaf boot parameter is out of bounds (that is, less than RCU_FANOUT_LEAF or greater than the number of bits in an unsigned long), a warning is issued and execution continues with the out-of-bounds value. This can result in all manner of failures, so this patch resets rcu_fanout_leaf to RCU_FANOUT_LEAF when an out-of-bounds condition is detected. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Родитель
032dfc8722
Коммит
13bd64947f
|
@ -4103,6 +4103,7 @@ static void __init rcu_init_geometry(void)
|
|||
*/
|
||||
if (rcu_fanout_leaf < RCU_FANOUT_LEAF ||
|
||||
rcu_fanout_leaf > sizeof(unsigned long) * 8) {
|
||||
rcu_fanout_leaf = RCU_FANOUT_LEAF;
|
||||
WARN_ON(1);
|
||||
return;
|
||||
}
|
||||
|
|
Загрузка…
Ссылка в новой задаче