Unverified Commit af08693e authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!8236 x86: profiling: Check prof_buffer in profile_tick() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Chen Zhongjin <chenzhongjin@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/VI4ILFTSCUJMTP5BCBVHF3GLA3VANUZZ/ 
 
https://gitee.com/openeuler/kernel/issues/I9T4EM 
 
Link:https://gitee.com/openeuler/kernel/pulls/8236

 

Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Reviewed-by: default avatarXu Kuohai <xukuohai@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 1a2a28b6 884d7e2b

kernel/profile.c

+1 −1
Original line number Diff line number Diff line
@@ -411,7 +411,7 @@ void profile_tick(int type) 
{

	struct pt_regs *regs = get_irq_regs();



	if (!user_mode(regs) && cpumask_available(prof_cpu_mask) &&

	if (!user_mode(regs) && prof_buffer && cpumask_available(prof_cpu_mask) &&

	    cpumask_test_cpu(smp_processor_id(), prof_cpu_mask))

		profile_hit(type, (void *)profile_pc(regs));

}