From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mark Rutland <mark.rutland@arm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
linuxppc-dev@lists.ozlabs.org
Subject: [patch 06/18] powerpc: Adjust system_state check
Date: Sun, 14 May 2017 20:27:22 +0200 [thread overview]
Message-ID: <20170514183612.922744553@linutronix.de> (raw)
In-Reply-To: 20170514182716.347236777@linutronix.de
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>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
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
next parent reply other threads:[~2017-05-14 18:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170514182716.347236777@linutronix.de>
2017-05-14 18:27 ` Thomas Gleixner [this message]
2017-05-15 9:19 ` [patch 06/18] powerpc: Adjust system_state check Michael Ellerman
2017-05-14 18:27 ` [patch 09/18] cpufreq/pasemi: " Thomas Gleixner
2017-05-15 5:24 ` Viresh Kumar
2017-05-15 14:34 ` Steven Rostedt
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