From b441aab7aa0e15955c432736b08a218a6a4c77f0 Mon Sep 17 00:00:00 2001 From: Stafford Horne Date: Wed, 12 Jul 2017 17:20:38 +0900 Subject: openrisc: fix initial preempt state for secondary cpu tasks During SMP testing we were getting the below warning after booting the secondary cpu: [ 0.060000] BUG: scheduling while atomic: swapper/1/0/0x00000000 This change follows similar patterns from other architectures to start the schduler with preempt disabled. Signed-off-by: Stafford Horne --- arch/openrisc/include/asm/thread_info.h | 2 +- arch/openrisc/kernel/smp.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/openrisc') diff --git a/arch/openrisc/include/asm/thread_info.h b/arch/openrisc/include/asm/thread_info.h index 6e619a79a401..c229aa6bb502 100644 --- a/arch/openrisc/include/asm/thread_info.h +++ b/arch/openrisc/include/asm/thread_info.h @@ -74,7 +74,7 @@ struct thread_info { .task = &tsk, \ .flags = 0, \ .cpu = 0, \ - .preempt_count = 1, \ + .preempt_count = INIT_PREEMPT_COUNT, \ .addr_limit = KERNEL_DS, \ .ksp = 0, \ } diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c index fd724123229a..154c94a0cfbc 100644 --- a/arch/openrisc/kernel/smp.c +++ b/arch/openrisc/kernel/smp.c @@ -128,6 +128,7 @@ asmlinkage __init void secondary_start_kernel(void) local_irq_enable(); + preempt_disable(); /* * OK, it's off to the idle thread for us */ -- cgit v1.2.3