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>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Mel Gorman <mgorman@techsingularity.net>
Subject: [patch V2 08/17] mm: Adjust system_state check
Date: Tue, 16 May 2017 20:42:39 +0200 [thread overview]
Message-ID: <20170516184735.528279534@linutronix.de> (raw)
In-Reply-To: 20170516184231.564888231@linutronix.de
[-- Attachment #1: mm--Adjust-system_state-check.patch --]
[-- Type: text/plain, Size: 1079 bytes --]
To enable smp_processor_id() and might_sleep() debug checks earlier, it's
required to add system states between SYSTEM_BOOTING and SYSTEM_RUNNING.
get_nid_for_pfn() checks for system_state == BOOTING to decide whether to
use early_pfn_to_nid() when CONFIG_DEFERRED_STRUCT_PAGE_INIT=y.
That check is dubious, because the switch to state RUNNING happes way after
page_alloc_init_late() has been invoked.
Change the check to less than RUNNING state so it covers the new
intermediate states as well.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
---
drivers/base/node.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -377,7 +377,7 @@ static int __ref get_nid_for_pfn(unsigne
if (!pfn_valid_within(pfn))
return -1;
#ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
- if (system_state == SYSTEM_BOOTING)
+ if (system_state < SYSTEM_RUNNING)
return early_pfn_to_nid(pfn);
#endif
page = pfn_to_page(pfn);
next prev parent reply other threads:[~2017-05-16 18:52 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-16 18:42 [patch V2 00/17] init: Enable might_sleep() and smp_processor_id() debugging early Thomas Gleixner
2017-05-16 18:42 ` [patch V2 01/17] init: Pin init task to boot cpu initially Thomas Gleixner
2017-05-16 19:06 ` Steven Rostedt
2017-05-23 8:47 ` [tip:sched/core] init: Pin init task to the boot CPU, initially tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 02/17] arm: Adjust system_state check Thomas Gleixner
2017-05-23 8:48 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 03/17] arm64: " Thomas Gleixner
2017-05-17 10:09 ` Mark Rutland
2017-05-17 14:23 ` Catalin Marinas
2017-05-23 8:48 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 04/17] x86/smp: " Thomas Gleixner
2017-05-23 8:49 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 05/17] metag: " Thomas Gleixner
2017-05-23 8:50 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 06/17] powerpc: " Thomas Gleixner
2017-05-23 8:50 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 07/17] ACPI: " Thomas Gleixner
2017-05-16 19:07 ` Steven Rostedt
2017-05-23 8:51 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` Thomas Gleixner [this message]
2017-05-23 8:51 ` [tip:sched/core] mm: " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 09/17] cpufreq/pasemi: " Thomas Gleixner
2017-05-23 8:52 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 10/17] iommu/vt-d: Adjust system_state checks Thomas Gleixner
2017-05-23 8:52 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 11/17] iommu/of: Adjust system_state check Thomas Gleixner
2017-05-23 8:53 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 12/17] async: Adjust system_state checks Thomas Gleixner
2017-05-23 8:53 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 13/17] extable: " Thomas Gleixner
2017-05-23 8:54 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 14/17] printk: " Thomas Gleixner
2017-05-23 8:55 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 15/17] mm/vmscan: " Thomas Gleixner
2017-05-17 6:56 ` Vlastimil Babka
2017-05-23 8:55 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 16/17] init: Introduce SYSTEM_SCHEDULING state Thomas Gleixner
2017-05-17 10:58 ` Mark Rutland
2017-05-17 21:15 ` Boris Ostrovsky
2017-05-23 8:56 ` [tip:sched/core] " tip-bot for Thomas Gleixner
2017-05-16 18:42 ` [patch V2 17/17] sched: Enable might_sleep() and smp_processor_id() checks early Thomas Gleixner
2017-05-16 19:12 ` Steven Rostedt
2017-05-16 22:46 ` Thomas Gleixner
2017-05-16 22:50 ` Steven Rostedt
2017-05-17 11:02 ` Mark Rutland
2017-05-23 8:56 ` [tip:sched/core] sched/core: " tip-bot for Thomas Gleixner
2017-05-17 10:58 ` [patch V2 00/17] init: Enable might_sleep() and smp_processor_id() debugging early Mark Rutland
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