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Subject[RFC PATCH 08/23 V2] hugetlb: use N_MEMORY instead N_HIGH_MEMORY
Date
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.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
---
drivers/base/node.c | 2 +-
mm/hugetlb.c | 24 ++++++++++++------------
2 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/drivers/base/node.c b/drivers/base/node.c
index af1a177..31f4805 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -227,7 +227,7 @@ static node_registration_func_t __hugetlb_unregister_node;
static inline bool hugetlb_register_node(struct node *node)
{
if (__hugetlb_register_node &&
- node_state(node->dev.id, N_HIGH_MEMORY)) {
+ node_state(node->dev.id, N_MEMORY)) {
__hugetlb_register_node(node);
return true;
}
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index e198831..661db47 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1046,7 +1046,7 @@ static void return_unused_surplus_pages(struct hstate *h,
* on-line nodes with memory and will handle the hstate accounting.
*/
while (nr_pages--) {
- if (!free_pool_huge_page(h, &node_states[N_HIGH_MEMORY], 1))
+ if (!free_pool_huge_page(h, &node_states[N_MEMORY], 1))
break;
}
}
@@ -1150,14 +1150,14 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma,
int __weak alloc_bootmem_huge_page(struct hstate *h)
{
struct huge_bootmem_page *m;
- int nr_nodes = nodes_weight(node_states[N_HIGH_MEMORY]);
+ int nr_nodes = nodes_weight(node_states[N_MEMORY]);

while (nr_nodes) {
void *addr;

addr = __alloc_bootmem_node_nopanic(
NODE_DATA(hstate_next_node_to_alloc(h,
- &node_states[N_HIGH_MEMORY])),
+ &node_states[N_MEMORY])),
huge_page_size(h), huge_page_size(h), 0);

if (addr) {
@@ -1229,7 +1229,7 @@ static void __init hugetlb_hstate_alloc_pages(struct hstate *h)
if (!alloc_bootmem_huge_page(h))
break;
} else if (!alloc_fresh_huge_page(h,
- &node_states[N_HIGH_MEMORY]))
+ &node_states[N_MEMORY]))
break;
}
h->max_huge_pages = i;
@@ -1497,7 +1497,7 @@ static ssize_t nr_hugepages_store_common(bool obey_mempolicy,
if (!(obey_mempolicy &&
init_nodemask_of_mempolicy(nodes_allowed))) {
NODEMASK_FREE(nodes_allowed);
- nodes_allowed = &node_states[N_HIGH_MEMORY];
+ nodes_allowed = &node_states[N_MEMORY];
}
} else if (nodes_allowed) {
/*
@@ -1507,11 +1507,11 @@ static ssize_t nr_hugepages_store_common(bool obey_mempolicy,
count += h->nr_huge_pages - h->nr_huge_pages_node[nid];
init_nodemask_of_node(nodes_allowed, nid);
} else
- nodes_allowed = &node_states[N_HIGH_MEMORY];
+ nodes_allowed = &node_states[N_MEMORY];

h->max_huge_pages = set_max_huge_pages(h, count, nodes_allowed);

- if (nodes_allowed != &node_states[N_HIGH_MEMORY])
+ if (nodes_allowed != &node_states[N_MEMORY])
NODEMASK_FREE(nodes_allowed);

return len;
@@ -1812,7 +1812,7 @@ static void hugetlb_register_all_nodes(void)
{
int nid;

- for_each_node_state(nid, N_HIGH_MEMORY) {
+ for_each_node_state(nid, N_MEMORY) {
struct node *node = &node_devices[nid];
if (node->dev.id == nid)
hugetlb_register_node(node);
@@ -1906,8 +1906,8 @@ void __init hugetlb_add_hstate(unsigned order)
h->free_huge_pages = 0;
for (i = 0; i < MAX_NUMNODES; ++i)
INIT_LIST_HEAD(&h->hugepage_freelists[i]);
- h->next_nid_to_alloc = first_node(node_states[N_HIGH_MEMORY]);
- h->next_nid_to_free = first_node(node_states[N_HIGH_MEMORY]);
+ h->next_nid_to_alloc = first_node(node_states[N_MEMORY]);
+ h->next_nid_to_free = first_node(node_states[N_MEMORY]);
snprintf(h->name, HSTATE_NAME_LEN, "hugepages-%lukB",
huge_page_size(h)/1024);

@@ -1995,11 +1995,11 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
if (!(obey_mempolicy &&
init_nodemask_of_mempolicy(nodes_allowed))) {
NODEMASK_FREE(nodes_allowed);
- nodes_allowed = &node_states[N_HIGH_MEMORY];
+ nodes_allowed = &node_states[N_MEMORY];
}
h->max_huge_pages = set_max_huge_pages(h, tmp, nodes_allowed);

- if (nodes_allowed != &node_states[N_HIGH_MEMORY])
+ if (nodes_allowed != &node_states[N_MEMORY])
NODEMASK_FREE(nodes_allowed);
}
out:
--
1.7.1


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