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-rw-r--r--mm/memory_hotplug.c207
1 files changed, 0 insertions, 207 deletions
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 7fbb32b0b041..e4fdb97b6ef2 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -300,180 +300,6 @@ void __init register_page_bootmem_info_node(struct pglist_data *pgdat)
}
#endif /* CONFIG_HAVE_BOOTMEM_INFO_NODE */
-static void __meminit grow_zone_span(struct zone *zone, unsigned long start_pfn,
- unsigned long end_pfn)
-{
- unsigned long old_zone_end_pfn;
-
- zone_span_writelock(zone);
-
- old_zone_end_pfn = zone_end_pfn(zone);
- if (zone_is_empty(zone) || start_pfn < zone->zone_start_pfn)
- zone->zone_start_pfn = start_pfn;
-
- zone->spanned_pages = max(old_zone_end_pfn, end_pfn) -
- zone->zone_start_pfn;
-
- zone_span_writeunlock(zone);
-}
-
-static void resize_zone(struct zone *zone, unsigned long start_pfn,
- unsigned long end_pfn)
-{
- zone_span_writelock(zone);
-
- if (end_pfn - start_pfn) {
- zone->zone_start_pfn = start_pfn;
- zone->spanned_pages = end_pfn - start_pfn;
- } else {
- /*
- * make it consist as free_area_init_core(),
- * if spanned_pages = 0, then keep start_pfn = 0
- */
- zone->zone_start_pfn = 0;
- zone->spanned_pages = 0;
- }
-
- zone_span_writeunlock(zone);
-}
-
-static void fix_zone_id(struct zone *zone, unsigned long start_pfn,
- unsigned long end_pfn)
-{
- enum zone_type zid = zone_idx(zone);
- int nid = zone->zone_pgdat->node_id;
- unsigned long pfn;
-
- for (pfn = start_pfn; pfn < end_pfn; pfn++)
- set_page_links(pfn_to_page(pfn), zid, nid, pfn);
-}
-
-static void __ref ensure_zone_is_initialized(struct zone *zone,
- unsigned long start_pfn, unsigned long num_pages)
-{
- if (!zone_is_initialized(zone))
- init_currently_empty_zone(zone, start_pfn, num_pages);
-}
-
-static int __meminit move_pfn_range_left(struct zone *z1, struct zone *z2,
- unsigned long start_pfn, unsigned long end_pfn)
-{
- unsigned long flags;
- unsigned long z1_start_pfn;
-
- ensure_zone_is_initialized(z1, start_pfn, end_pfn - start_pfn);
-
- pgdat_resize_lock(z1->zone_pgdat, &flags);
-
- /* can't move pfns which are higher than @z2 */
- if (end_pfn > zone_end_pfn(z2))
- goto out_fail;
- /* the move out part must be at the left most of @z2 */
- if (start_pfn > z2->zone_start_pfn)
- goto out_fail;
- /* must included/overlap */
- if (end_pfn <= z2->zone_start_pfn)
- goto out_fail;
-
- /* use start_pfn for z1's start_pfn if z1 is empty */
- if (!zone_is_empty(z1))
- z1_start_pfn = z1->zone_start_pfn;
- else
- z1_start_pfn = start_pfn;
-
- resize_zone(z1, z1_start_pfn, end_pfn);
- resize_zone(z2, end_pfn, zone_end_pfn(z2));
-
- pgdat_resize_unlock(z1->zone_pgdat, &flags);
-
- fix_zone_id(z1, start_pfn, end_pfn);
-
- return 0;
-out_fail:
- pgdat_resize_unlock(z1->zone_pgdat, &flags);
- return -1;
-}
-
-static int __meminit move_pfn_range_right(struct zone *z1, struct zone *z2,
- unsigned long start_pfn, unsigned long end_pfn)
-{
- unsigned long flags;
- unsigned long z2_end_pfn;
-
- ensure_zone_is_initialized(z2, start_pfn, end_pfn - start_pfn);
-
- pgdat_resize_lock(z1->zone_pgdat, &flags);
-
- /* can't move pfns which are lower than @z1 */
- if (z1->zone_start_pfn > start_pfn)
- goto out_fail;
- /* the move out part mast at the right most of @z1 */
- if (zone_end_pfn(z1) > end_pfn)
- goto out_fail;
- /* must included/overlap */
- if (start_pfn >= zone_end_pfn(z1))
- goto out_fail;
-
- /* use end_pfn for z2's end_pfn if z2 is empty */
- if (!zone_is_empty(z2))
- z2_end_pfn = zone_end_pfn(z2);
- else
- z2_end_pfn = end_pfn;
-
- resize_zone(z1, z1->zone_start_pfn, start_pfn);
- resize_zone(z2, start_pfn, z2_end_pfn);
-
- pgdat_resize_unlock(z1->zone_pgdat, &flags);
-
- fix_zone_id(z2, start_pfn, end_pfn);
-
- return 0;
-out_fail:
- pgdat_resize_unlock(z1->zone_pgdat, &flags);
- return -1;
-}
-
-static void __meminit grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn,
- unsigned long end_pfn)
-{
- unsigned long old_pgdat_end_pfn = pgdat_end_pfn(pgdat);
-
- if (!pgdat->node_spanned_pages || start_pfn < pgdat->node_start_pfn)
- pgdat->node_start_pfn = start_pfn;
-
- pgdat->node_spanned_pages = max(old_pgdat_end_pfn, end_pfn) -
- pgdat->node_start_pfn;
-}
-
-static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn)
-{
- struct pglist_data *pgdat = zone->zone_pgdat;
- int nr_pages = PAGES_PER_SECTION;
- int nid = pgdat->node_id;
- int zone_type;
- unsigned long flags, pfn;
-
- zone_type = zone - pgdat->node_zones;
- ensure_zone_is_initialized(zone, phys_start_pfn, nr_pages);
-
- pgdat_resize_lock(zone->zone_pgdat, &flags);
- grow_zone_span(zone, phys_start_pfn, phys_start_pfn + nr_pages);
- grow_pgdat_span(zone->zone_pgdat, phys_start_pfn,
- phys_start_pfn + nr_pages);
- pgdat_resize_unlock(zone->zone_pgdat, &flags);
- memmap_init_zone(nr_pages, nid, zone_type,
- phys_start_pfn, MEMMAP_HOTPLUG);
-
- /* online_page_range is called later and expects pages reserved */
- for (pfn = phys_start_pfn; pfn < phys_start_pfn + nr_pages; pfn++) {
- if (!pfn_valid(pfn))
- continue;
-
- SetPageReserved(pfn_to_page(pfn));
- }
- return 0;
-}
-
static int __meminit __add_section(int nid, unsigned long phys_start_pfn,
bool want_memblock)
{
@@ -1370,39 +1196,6 @@ static int check_hotplug_memory_range(u64 start, u64 size)
return 0;
}
-/*
- * If movable zone has already been setup, newly added memory should be check.
- * If its address is higher than movable zone, it should be added as movable.
- * Without this check, movable zone may overlap with other zone.
- */
-static int should_add_memory_movable(int nid, u64 start, u64 size)
-{
- unsigned long start_pfn = start >> PAGE_SHIFT;
- pg_data_t *pgdat = NODE_DATA(nid);
- struct zone *movable_zone = pgdat->node_zones + ZONE_MOVABLE;
-
- if (zone_is_empty(movable_zone))
- return 0;
-
- if (movable_zone->zone_start_pfn <= start_pfn)
- return 1;
-
- return 0;
-}
-
-int zone_for_memory(int nid, u64 start, u64 size, int zone_default,
- bool for_device)
-{
-#ifdef CONFIG_ZONE_DEVICE
- if (for_device)
- return ZONE_DEVICE;
-#endif
- if (should_add_memory_movable(nid, start, size))
- return ZONE_MOVABLE;
-
- return zone_default;
-}
-
static int online_memory_block(struct memory_block *mem, void *arg)
{
return device_online(&mem->dev);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-19 20:32:32 +0000