[tip:sched/core] x86/smp: Adjust system_state check

tip-bot for Thomas Gleixner
2017-05-23T08:54:18Z

Commit-ID: 719b3680d1f789c1e3054e3fcb26bfff07c3c623
Gitweb: http://git.kernel.org/tip/719b3680d1f789c1e3054e3fcb26bfff07c3c623
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 16 May 2017 20:42:35 +0200
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 23 May 2017 10:01:35 +0200

x86/smp: 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 announce_cpu() to handle the extra states.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.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>
Link: http://lkml.kernel.org/r/20170516184735.191715856@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/kernel/smpboot.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index f04479a..045e4f9 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -863,7 +863,7 @@ static void announce_cpu(int cpu, int apicid)
if (cpu == 1)
printk(KERN_INFO "x86: Booting SMP configuration:\n");

- if (system_state == SYSTEM_BOOTING) {
+ if (system_state < SYSTEM_RUNNING) {
if (node != current_node) {
if (current_node > (-1))
pr_cont("\n");