N_NORMAL_MEMORY is intended to include all nodes that have present memory
in regular zones, that is, zones below ZONE_HIGHMEM. This should be done
regardless of whether CONFIG_HIGHMEM is set or not.
This fixes ia64 so that the nodes get set appropriately in the nodemask
for DISCONTIGMEM and mips if it does not enable CONFIG_HIGHMEM even for
32-bit kernels.
If N_NORMAL_MEMORY is not accurate, slub may encounter errors since it
relies on this nodemask to setup kmem_cache_node data structures for each
cache.
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
---
mm/page_alloc.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4727,7 +4727,6 @@ out:
/* Any regular memory on that node ? */
static void check_for_regular_memory(pg_data_t *pgdat)
{
-#ifdef CONFIG_HIGHMEM
enum zone_type zone_type;
for (zone_type = 0; zone_type <= ZONE_NORMAL; zone_type++) {
@@ -4735,7 +4734,6 @@ static void check_for_regular_memory(pg_data_t *pgdat)
if (zone->present_pages)
node_set_state(zone_to_nid(zone), N_NORMAL_MEMORY);
}
-#endif
}
/**
--
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