Merge tag 'pci-v4.16-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...

[sfrench/cifs-2.6.git] / mm / page_alloc.c

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 81e18ceef579cd7726dfbabc45a5fbfd133a837b..cb416723538fe49810db0cb9b9e0b165cb963a44 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -46,6 +46,7 @@
 #include <linux/stop_machine.h>
 #include <linux/sort.h>
 #include <linux/pfn.h>
+#include <xen/xen.h>
 #include <linux/backing-dev.h>
 #include <linux/fault-inject.h>
 #include <linux/page-isolation.h>
@@ -347,6 +348,9 @@ static inline bool update_defer_init(pg_data_t *pgdat,
        /* Always populate low zones for address-constrained allocations */
        if (zone_end < pgdat_end_pfn(pgdat))
                return true;
+       /* Xen PV domains need page structures early */
+       if (xen_pv_domain())
+               return true;
        (*nr_initialised)++;
        if ((*nr_initialised > pgdat->static_init_pgcnt) &&
            (pfn & (PAGES_PER_SECTION - 1)) == 0) {