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Groups > linux.kernel > #1642761
| From | Thomas Gleixner <tglx@linutronix.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [patch V2 06/17] powerpc: Adjust system_state check |
| Date | 2017-05-16 21:00 +0200 |
| Message-ID | <tHPRp-M2-59@gated-at.bofh.it> (permalink) |
| References | <tHPRn-M2-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
---
arch/powerpc/kernel/smp.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -97,7 +97,7 @@ int smp_generic_cpu_bootable(unsigned in
/* Special case - we inhibit secondary thread startup
* 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)
return 0;
if (smt_enabled_at_boot
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[patch V2 00/17] init: Enable might_sleep() and smp_processor_id() debugging early Thomas Gleixner <tglx@linutronix.de> - 2017-05-16 21:00 +0200
[patch V2 06/17] powerpc: Adjust system_state check Thomas Gleixner <tglx@linutronix.de> - 2017-05-16 21:00 +0200
[tip:sched/core] powerpc: Adjust system_state check tip-bot for Thomas Gleixner <tipbot@zytor.com> - 2017-05-23 11:10 +0200
[patch V2 03/17] arm64: Adjust system_state check Thomas Gleixner <tglx@linutronix.de> - 2017-05-16 21:00 +0200
Re: [patch V2 03/17] arm64: Adjust system_state check Mark Rutland <mark.rutland@arm.com> - 2017-05-17 12:20 +0200
Re: [patch V2 03/17] arm64: Adjust system_state check Catalin Marinas <catalin.marinas@arm.com> - 2017-05-17 16:30 +0200
[tip:sched/core] arm64: Adjust system_state check tip-bot for Thomas Gleixner <tipbot@zytor.com> - 2017-05-23 11:00 +0200
Re: [patch V2 00/17] init: Enable might_sleep() and smp_processor_id() debugging early Mark Rutland <mark.rutland@arm.com> - 2017-05-17 13:00 +0200
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