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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>
This commit is contained in:
Thomas Gleixner 2017-05-16 20:42:34 +02:00 committed by Ingo Molnar
parent 5976a66913
commit ef284f5ca5
1 changed files with 1 additions and 2 deletions
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3
arch/arm64/kernel/smp.c
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@ -961,8 +961,7 @@ void smp_send_stop(void)
cpumask_copy(&mask, cpu_online_mask); cpumask_copy(&mask, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &mask); cpumask_clear_cpu(smp_processor_id(), &mask);
if (system_state == SYSTEM_BOOTING || if (system_state <= SYSTEM_RUNNING)
system_state == SYSTEM_RUNNING)
pr_crit("SMP: stopping secondary CPUs\n"); pr_crit("SMP: stopping secondary CPUs\n");
smp_cross_call(&mask, IPI_CPU_STOP); smp_cross_call(&mask, IPI_CPU_STOP);
} }