Messages in this thread Patch in this message | | | Date | Tue, 23 May 2017 01:48:15 -0700 | From | tip-bot for Thomas Gleixner <> | Subject | [tip:sched/core] arm: Adjust system_state check |
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Commit-ID: 5976a66913a8bf42465d96776fd37fb5631edc19 Gitweb: http://git.kernel.org/tip/5976a66913a8bf42465d96776fd37fb5631edc19 Author: Thomas Gleixner <tglx@linutronix.de> AuthorDate: Tue, 16 May 2017 20:42:33 +0200 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Tue, 23 May 2017 10:01:35 +0200
arm: 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 ipi_cpu_stop() 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: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/20170516184735.020718977@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org> --- arch/arm/kernel/smp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 572a8df..c9a0a52 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -555,8 +555,7 @@ static DEFINE_RAW_SPINLOCK(stop_lock); */ static void ipi_cpu_stop(unsigned int cpu) { - if (system_state == SYSTEM_BOOTING || - system_state == SYSTEM_RUNNING) { + if (system_state <= SYSTEM_RUNNING) { raw_spin_lock(&stop_lock); pr_crit("CPU%u: stopping\n", cpu); dump_stack();
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