From 8cdde385c7a33afbe13fd71351da0968540fa566 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Tue, 16 May 2017 20:42:39 +0200 Subject: [PATCH] mm: 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. 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 Signed-off-by: Peter Zijlstra (Intel) Acked-by: Greg Kroah-Hartman Cc: Linus Torvalds Cc: Mark Rutland Cc: Mel Gorman Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/20170516184735.528279534@linutronix.de Signed-off-by: Ingo Molnar --- drivers/base/node.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/node.c b/drivers/base/node.c index 5548f9686016..0440d95c9b5b 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -377,7 +377,7 @@ static int __ref get_nid_for_pfn(unsigned long pfn) 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); -- 2.20.1