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Groups > linux.kernel > #1647855

[tip:sched/core] metag: Adjust system_state check

From tip-bot for Thomas Gleixner <tipbot@zytor.com>
Newsgroups linux.kernel
Subject [tip:sched/core] metag: Adjust system_state check
Date 2017-05-23 11:00 +0200
Message-ID <tKdPC-N6-73@gated-at.bofh.it> (permalink)
References <tHPRp-M2-55@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Commit-ID:  dcd2e4734b428709984e2fa35ebbd6cccc246d47
Gitweb:     http://git.kernel.org/tip/dcd2e4734b428709984e2fa35ebbd6cccc246d47
Author:     Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 16 May 2017 20:42:36 +0200
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 23 May 2017 10:01:35 +0200

metag: 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 stop_this_cpu() to handle the extra states.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170516184735.283420315@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/metag/kernel/smp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/metag/kernel/smp.c b/arch/metag/kernel/smp.c
index 232a12b..2dbbb7c 100644
--- a/arch/metag/kernel/smp.c
+++ b/arch/metag/kernel/smp.c
@@ -567,8 +567,7 @@ static void stop_this_cpu(void *data)
 {
 	unsigned int cpu = smp_processor_id();
 
-	if (system_state == SYSTEM_BOOTING ||
-	    system_state == SYSTEM_RUNNING) {
+	if (system_state <= SYSTEM_RUNNING) {
 		spin_lock(&stop_lock);
 		pr_crit("CPU%u: stopping\n", cpu);
 		dump_stack();

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[patch V2 05/17] metag: Adjust system_state check Thomas Gleixner <tglx@linutronix.de> - 2017-05-16 21:00 +0200
  [tip:sched/core] metag: Adjust system_state check tip-bot for Thomas Gleixner <tipbot@zytor.com> - 2017-05-23 11:00 +0200

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