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| author | Thomas Gleixner <tglx@linutronix.de> | 2017-05-16 20:42:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-05-23 10:01:36 +0200 |
| commit | 8cdde385c7a33afbe13fd71351da0968540fa566 (patch) | |
| tree | 03d335d291b6a999325b691af766e06c49fecd8c | |
| parent | 9762b33dc31c67e34b36ba4e787e64084b3136ff (diff) | |
| download | linux-8cdde385c7a33afbe13fd71351da0968540fa566.tar.gz linux-8cdde385c7a33afbe13fd71351da0968540fa566.tar.xz | |
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 <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170516184735.528279534@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | drivers/base/node.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |