39 lines
1.5 KiB
Diff
39 lines
1.5 KiB
Diff
From: Thomas Gleixner <tglx@linutronix.de>
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Date: Tue, 16 May 2017 20:42:34 +0200
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Subject: [PATCH 03/17] arm64: Adjust system_state check
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.11/older/patches-4.11.9-rt7.tar.xz
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To enable smp_processor_id() and might_sleep() debug checks earlier, it's
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required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.
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Adjust the system_state check in smp_send_stop() to handle the extra states.
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Tested-by: Mark Rutland <mark.rutland@arm.com>
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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Acked-by: Mark Rutland <mark.rutland@arm.com>
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Acked-by: Catalin Marinas <catalin.marinas@arm.com>
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Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cc: Linus Torvalds <torvalds@linux-foundation.org>
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Cc: Peter Zijlstra <peterz@infradead.org>
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Cc: Steven Rostedt <rostedt@goodmis.org>
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Cc: Will Deacon <will.deacon@arm.com>
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Link: http://lkml.kernel.org/r/20170516184735.112589728@linutronix.de
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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---
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arch/arm64/kernel/smp.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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--- a/arch/arm64/kernel/smp.c
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+++ b/arch/arm64/kernel/smp.c
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@@ -915,8 +915,7 @@ void smp_send_stop(void)
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cpumask_copy(&mask, cpu_online_mask);
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cpumask_clear_cpu(smp_processor_id(), &mask);
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- if (system_state == SYSTEM_BOOTING ||
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- system_state == SYSTEM_RUNNING)
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+ if (system_state <= SYSTEM_RUNNING)
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pr_crit("SMP: stopping secondary CPUs\n");
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smp_cross_call(&mask, IPI_CPU_STOP);
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}
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