[PATCH 8/9] lib/nodemask: add num_node_state_eq()

Yury Norov
2021-11-28T04:00:18Z

Add num_node_state_eq() and replace num_node_state() with it in
page_alloc_init().

Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
include/linux/nodemask.h | 5 +++++
mm/page_alloc.c | 2 +-
2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index 3801ec5b06f4..b68ee2a80164 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -455,6 +455,11 @@ static inline int num_node_state(enum node_states state)
return nodes_weight(node_states[state]);
}

+static inline int num_node_state_eq(enum node_states state, unsigned int num)
+{
+ return nodes_weight_eq(node_states[state], num);
+}
+
#define for_each_node_state(__node, __state) \
for_each_node_mask((__node), node_states[__state])

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 91c1105a9efe..81d111155ffb 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -8323,7 +8323,7 @@ void __init page_alloc_init(void)
int ret;

#ifdef CONFIG_NUMA
- if (num_node_state(N_MEMORY) == 1)
+ if (num_node_state_eq(N_MEMORY, 1))
hashdist = 0;
#endif

--
2.25.1