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powerpc: Adjust system_state check

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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_generic_cpu_bootable() to handle the
extra states.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20170516184735.359536998@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Thomas Gleixner
2017-05-16 20:42:37 +02:00
committed by Ingo Molnar
parent dcd2e4734b
commit a8fcfc1917
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kernel/smp.c
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@@ -97,7 +97,7 @@ int smp_generic_cpu_bootable(unsigned int nr)
/* Special case - we inhibit secondary thread startup /* Special case - we inhibit secondary thread startup
* during boot if the user requests it. * during boot if the user requests it.
*/ */
if (system_state == SYSTEM_BOOTING && cpu_has_feature(CPU_FTR_SMT)) { if (system_state < SYSTEM_RUNNING && cpu_has_feature(CPU_FTR_SMT)) {
if (!smt_enabled_at_boot && cpu_thread_in_core(nr) != 0) if (!smt_enabled_at_boot && cpu_thread_in_core(nr) != 0)
return 0; return 0;
if (smt_enabled_at_boot if (smt_enabled_at_boot