| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Tue, 16 May 2017 20:42:34 +0200 |
| Subject: [PATCH 03/17] arm64: Adjust system_state check |
| |
| To enable smp_processor_id() and might_sleep() debug checks earlier, it's |
| required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING. |
| |
| Adjust the system_state check in smp_send_stop() to handle the extra states. |
| |
| Tested-by: Mark Rutland <mark.rutland@arm.com> |
| Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
| Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> |
| Acked-by: Mark Rutland <mark.rutland@arm.com> |
| Acked-by: Catalin Marinas <catalin.marinas@arm.com> |
| Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| Cc: Linus Torvalds <torvalds@linux-foundation.org> |
| Cc: Peter Zijlstra <peterz@infradead.org> |
| Cc: Steven Rostedt <rostedt@goodmis.org> |
| Cc: Will Deacon <will.deacon@arm.com> |
| Link: http://lkml.kernel.org/r/20170516184735.112589728@linutronix.de |
| Signed-off-by: Ingo Molnar <mingo@kernel.org> |
| --- |
| arch/arm64/kernel/smp.c | 3 +-- |
| 1 file changed, 1 insertion(+), 2 deletions(-) |
| |
| --- a/arch/arm64/kernel/smp.c |
| +++ b/arch/arm64/kernel/smp.c |
| @@ -915,8 +915,7 @@ void smp_send_stop(void) |
| cpumask_copy(&mask, cpu_online_mask); |
| cpumask_clear_cpu(smp_processor_id(), &mask); |
| |
| - if (system_state == SYSTEM_BOOTING || |
| - system_state == SYSTEM_RUNNING) |
| + if (system_state <= SYSTEM_RUNNING) |
| pr_crit("SMP: stopping secondary CPUs\n"); |
| smp_cross_call(&mask, IPI_CPU_STOP); |
| } |
