Commit c7ccbf4b authored by Andrey Ryabinin's avatar Andrey Ryabinin Committed by Peter Zijlstra
Browse files

cpuacct: Convert BUG_ON() to WARN_ON_ONCE() 



Replace fatal BUG_ON() with more safe WARN_ON_ONCE() in cpuacct_cpuusage_read().

Signed-off-by: default avatarAndrey Ryabinin <arbn@yandex-team.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: default avatarDaniel Jordan <daniel.m.jordan@oracle.com>
Acked-by: default avatarTejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20211115164607.23784-2-arbn@yandex-team.com
parent 9731698e

kernel/sched/cpuacct.c

+2 −1
Original line number Diff line number Diff line
@@ -106,7 +106,8 @@ static u64 cpuacct_cpuusage_read(struct cpuacct *ca, int cpu, 
	 * We allow index == CPUACCT_STAT_NSTATS here to read

	 * the sum of usages.

	 */

	BUG_ON(index > CPUACCT_STAT_NSTATS);

	if (WARN_ON_ONCE(index > CPUACCT_STAT_NSTATS))

		return 0;



#ifndef CONFIG_64BIT

	/*