Messages in this thread | | | Date | Mon, 15 May 2017 10:54:36 -0400 | From | Steven Rostedt <> | Subject | Re: [patch 15/18] mm/vmscan: Adjust system_state checks |
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On Sun, 14 May 2017 20:27:31 +0200 Thomas Gleixner <tglx@linutronix.de> wrote:
> 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 kswapd_run() to handle the extra states. > > Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-- Steve
> Cc: Andrew Morton <akpm@linux-foundation.org> > Cc: Johannes Weiner <hannes@cmpxchg.org> > Cc: Mel Gorman <mgorman@techsingularity.net> > Cc: Michal Hocko <mhocko@suse.com> > Cc: Vlastimil Babka <vbabka@suse.cz> > Cc: linux-mm@kvack.org > --- > mm/vmscan.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > --- a/mm/vmscan.c > +++ b/mm/vmscan.c > @@ -3643,7 +3643,7 @@ int kswapd_run(int nid) > pgdat->kswapd = kthread_run(kswapd, pgdat, "kswapd%d", nid); > if (IS_ERR(pgdat->kswapd)) { > /* failure at boot is fatal */ > - BUG_ON(system_state == SYSTEM_BOOTING); > + BUG_ON(system_state < SYSTEM_RUNNING); > pr_err("Failed to start kswapd on node %d\n", nid); > ret = PTR_ERR(pgdat->kswapd); > pgdat->kswapd = NULL; >
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