340175b7 (mm/hotplug: free zone->pageset when a zone becomes empty)
introduced zone_pcp_reset and hided it inside CONFIG_MEMORY_HOTREMOVE.
The function is since 506e5fb7 (memory-hotplug: allocate zone's pcp
before onlining pages) called also called from online_pages which
is called outside CONFIG_MEMORY_HOTREMOVE which causes a linkage error.
The function, although not used outside of MEMORY_{HOTPLUT,HOTREMOVE},
seems like universal enough so let's keep it at its current location
and only remove the HOTREMOVE guard.
Signed-off-by: Michal Hocko <mho...@suse.cz>
Cc: David Rientjes <rient...@google.com>
Cc: Jiang Liu <liu...@gmail.com>
Cc: Len Brown <len.br...@intel.com>
Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org>
Cc: Paul Mackerras <pau...@samba.org>
Cc: Christoph Lameter <c...@linux.com>
Cc: Minchan Kim <minchan....@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motoh...@jp.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasu...@jp.fujitsu.com>
Cc: Dave Hansen <d...@linux.vnet.ibm.com>
Cc: Mel Gorman <m...@csn.ul.ie>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e29912e..30e359c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -5981,7 +5981,6 @@ void __meminit zone_pcp_update(struct zone *zone)
}
#endif
-#ifdef CONFIG_MEMORY_HOTREMOVE
void zone_pcp_reset(struct zone *zone)
{
unsigned long flags;
@@ -6001,6 +6000,7 @@ void zone_pcp_reset(struct zone *zone)
local_irq_restore(flags);
}
+#ifdef CONFIG_MEMORY_HOTREMOVE
/*
* All pages in the range must be isolated before calling this.
*/
--
1.7.10.4
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