Merge branch 'for-4.16/nfit' into libnvdimm-for-next

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

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 73f5d4556b3d0b7218bea0cb9bb0fdd1f1cb3cdd..2bb7f163baca178a2295e60401e8f3f9730d44a3 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2684,6 +2684,7 @@ void free_unref_page_list(struct list_head *list)
 {
        struct page *page, *next;
        unsigned long flags, pfn;
+       int batch_count = 0;
 
        /* Prepare pages for freeing */
        list_for_each_entry_safe(page, next, list, lru) {
@@ -2700,6 +2701,16 @@ void free_unref_page_list(struct list_head *list)
                set_page_private(page, 0);
                trace_mm_page_free_batched(page);
                free_unref_page_commit(page, pfn);
+
+               /*
+                * Guard against excessive IRQ disabled times when we get
+                * a large list of pages to free.
+                */
+               if (++batch_count == SWAP_CLUSTER_MAX) {
+                       local_irq_restore(flags);
+                       batch_count = 0;
+                       local_irq_save(flags);
+               }
        }
        local_irq_restore(flags);
 }
@@ -5303,9 +5314,9 @@ void __ref build_all_zonelists(pg_data_t *pgdat)
  * done. Non-atomic initialization, single-pass.
  */
 void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
-               unsigned long start_pfn, enum memmap_context context)
+               unsigned long start_pfn, enum memmap_context context,
+               struct vmem_altmap *altmap)
 {
-       struct vmem_altmap *altmap = to_vmem_altmap(__pfn_to_phys(start_pfn));
        unsigned long end_pfn = start_pfn + size;
        pg_data_t *pgdat = NODE_DATA(nid);
        unsigned long pfn;
@@ -5406,7 +5417,7 @@ static void __meminit zone_init_free_lists(struct zone *zone)
 
 #ifndef __HAVE_ARCH_MEMMAP_INIT
 #define memmap_init(size, nid, zone, start_pfn) \
-       memmap_init_zone((size), (nid), (zone), (start_pfn), MEMMAP_EARLY)
+       memmap_init_zone((size), (nid), (zone), (start_pfn), MEMMAP_EARLY, NULL)
 #endif
 
 static int zone_batchsize(struct zone *zone)
@@ -6249,6 +6260,8 @@ void __paginginit zero_resv_unavail(void)
        pgcnt = 0;
        for_each_resv_unavail_range(i, &start, &end) {
                for (pfn = PFN_DOWN(start); pfn < PFN_UP(end); pfn++) {
+                       if (!pfn_valid(ALIGN_DOWN(pfn, pageblock_nr_pages)))
+                               continue;
                        mm_zero_struct_page(pfn_to_page(pfn));
                        pgcnt++;
                }