The patch titled
Subject: page_alloc: use N_MEMORY instead N_HIGH_MEMORY change the node_states initialization
has been removed from the -mm tree. Its filename was
page_alloc-use-n_memory-instead-n_high_memory-change-the-node_states-initialization.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Subject: page_alloc: use N_MEMORY instead N_HIGH_MEMORY change the node_states initialization
N_HIGH_MEMORY stands for the nodes that has normal or high memory.
N_MEMORY stands for the nodes that has any memory.
The code here need to handle with the nodes which have memory, we should
use N_MEMORY instead.
Since we introduced N_MEMORY, we update the initialization of node_states.
Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Signed-off-by: Lin Feng <linfeng@xxxxxxxxxxxxxx>
Signed-off-by: Wen Congyang <wency@xxxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Hillf Danton <dhillf@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/init_64.c | 4 +++-
mm/page_alloc.c | 40 ++++++++++++++++++++++------------------
2 files changed, 25 insertions(+), 19 deletions(-)
diff -puN arch/x86/mm/init_64.c~page_alloc-use-n_memory-instead-n_high_memory-change-the-node_states-initialization arch/x86/mm/init_64.c
--- a/arch/x86/mm/init_64.c~page_alloc-use-n_memory-instead-n_high_memory-change-the-node_states-initialization
+++ a/arch/x86/mm/init_64.c
@@ -630,7 +630,9 @@ void __init paging_init(void)
* numa support is not compiled in, and later node_set_state
* will not set it back.
*/
- node_clear_state(0, N_NORMAL_MEMORY);
+ node_clear_state(0, N_MEMORY);
+ if (N_MEMORY != N_NORMAL_MEMORY)
+ node_clear_state(0, N_NORMAL_MEMORY);
zone_sizes_init();
}
diff -puN mm/page_alloc.c~page_alloc-use-n_memory-instead-n_high_memory-change-the-node_states-initialization mm/page_alloc.c
--- a/mm/page_alloc.c~page_alloc-use-n_memory-instead-n_high_memory-change-the-node_states-initialization
+++ a/mm/page_alloc.c
@@ -1695,7 +1695,7 @@ bool zone_watermark_ok_safe(struct zone
*
* If the zonelist cache is present in the passed in zonelist, then
* returns a pointer to the allowed node mask (either the current
- * tasks mems_allowed, or node_states[N_HIGH_MEMORY].)
+ * tasks mems_allowed, or node_states[N_MEMORY].)
*
* If the zonelist cache is not available for this zonelist, does
* nothing and returns NULL.
@@ -1724,7 +1724,7 @@ static nodemask_t *zlc_setup(struct zone
allowednodes = !in_interrupt() && (alloc_flags & ALLOC_CPUSET) ?
&cpuset_current_mems_allowed :
- &node_states[N_HIGH_MEMORY];
+ &node_states[N_MEMORY];
return allowednodes;
}
@@ -3238,7 +3238,7 @@ static int find_next_best_node(int node,
return node;
}
- for_each_node_state(n, N_HIGH_MEMORY) {
+ for_each_node_state(n, N_MEMORY) {
/* Don't want a node to appear more than once */
if (node_isset(n, *used_node_mask))
@@ -3380,7 +3380,7 @@ static int default_zonelist_order(void)
* local memory, NODE_ORDER may be suitable.
*/
average_size = total_size /
- (nodes_weight(node_states[N_HIGH_MEMORY]) + 1);
+ (nodes_weight(node_states[N_MEMORY]) + 1);
for_each_online_node(nid) {
low_kmem_size = 0;
total_size = 0;
@@ -4731,7 +4731,7 @@ unsigned long __init find_min_pfn_with_a
/*
* early_calculate_totalpages()
* Sum pages in active regions for movable zone.
- * Populate N_HIGH_MEMORY for calculating usable_nodes.
+ * Populate N_MEMORY for calculating usable_nodes.
*/
static unsigned long __init early_calculate_totalpages(void)
{
@@ -4744,7 +4744,7 @@ static unsigned long __init early_calcul
totalpages += pages;
if (pages)
- node_set_state(nid, N_HIGH_MEMORY);
+ node_set_state(nid, N_MEMORY);
}
return totalpages;
}
@@ -4761,9 +4761,9 @@ static void __init find_zone_movable_pfn
unsigned long usable_startpfn;
unsigned long kernelcore_node, kernelcore_remaining;
/* save the state before borrow the nodemask */
- nodemask_t saved_node_state = node_states[N_HIGH_MEMORY];
+ nodemask_t saved_node_state = node_states[N_MEMORY];
unsigned long totalpages = early_calculate_totalpages();
- int usable_nodes = nodes_weight(node_states[N_HIGH_MEMORY]);
+ int usable_nodes = nodes_weight(node_states[N_MEMORY]);
/*
* If movablecore was specified, calculate what size of
@@ -4798,7 +4798,7 @@ static void __init find_zone_movable_pfn
restart:
/* Spread kernelcore memory as evenly as possible throughout nodes */
kernelcore_node = required_kernelcore / usable_nodes;
- for_each_node_state(nid, N_HIGH_MEMORY) {
+ for_each_node_state(nid, N_MEMORY) {
unsigned long start_pfn, end_pfn;
/*
@@ -4890,23 +4890,27 @@ restart:
out:
/* restore the node_state */
- node_states[N_HIGH_MEMORY] = saved_node_state;
+ node_states[N_MEMORY] = saved_node_state;
}
-/* Any regular memory on that node ? */
-static void __init check_for_regular_memory(pg_data_t *pgdat)
+/* Any regular or high memory on that node ? */
+static void check_for_memory(pg_data_t *pgdat, int nid)
{
-#ifdef CONFIG_HIGHMEM
enum zone_type zone_type;
- for (zone_type = 0; zone_type <= ZONE_NORMAL; zone_type++) {
+ if (N_MEMORY == N_NORMAL_MEMORY)
+ return;
+
+ for (zone_type = 0; zone_type <= ZONE_MOVABLE - 1; zone_type++) {
struct zone *zone = &pgdat->node_zones[zone_type];
if (zone->present_pages) {
- node_set_state(zone_to_nid(zone), N_NORMAL_MEMORY);
+ node_set_state(nid, N_HIGH_MEMORY);
+ if (N_NORMAL_MEMORY != N_HIGH_MEMORY &&
+ zone_type <= ZONE_NORMAL)
+ node_set_state(nid, N_NORMAL_MEMORY);
break;
}
}
-#endif
}
/**
@@ -4989,8 +4993,8 @@ void __init free_area_init_nodes(unsigne
/* Any memory on that node */
if (pgdat->node_present_pages)
- node_set_state(nid, N_HIGH_MEMORY);
- check_for_regular_memory(pgdat);
+ node_set_state(nid, N_MEMORY);
+ check_for_memory(pgdat, nid);
}
}
_
Patches currently in -mm which might be from laijs@xxxxxxxxxxxxxx are
origin.patch
linux-next.patch
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