[PATCH v2 7/9] mm: numa_memblks: remove redundant numa_nodemask_from_meminfo()

[Sang-Heon Jeon]

numa_add_memblk() now sets each added node in numa_nodes_parsed, so
numa_nodes_parsed already contains every node that owns memory.  The nodes
numa_nodemask_from_meminfo() adds from numa_meminfo are already set, so the
calls in numa_alloc_distance() and numa_register_meminfo() are redundant.

So remove both call sites and the unused function itself.

No functional change.

Signed-off-by: Sang-Heon Jeon <ekffu200098@xxxxxxxxx>
---
 mm/numa_memblks.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/mm/numa_memblks.c b/mm/numa_memblks.c
index 9815192549c3..48428060e93f 100644
--- a/mm/numa_memblks.c
+++ b/mm/numa_memblks.c
@@ -17,20 +17,6 @@ nodemask_t numa_nodes_parsed __initdata;
 static struct numa_meminfo numa_meminfo __initdata_or_meminfo;
 static struct numa_meminfo numa_reserved_meminfo __initdata_or_meminfo;
 
-/*
- * Set nodes, which have memory in @mi, in *@nodemask.
- */
-static void __init numa_nodemask_from_meminfo(nodemask_t *nodemask,
-					      const struct numa_meminfo *mi)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mi->blk); i++)
-		if (mi->blk[i].start != mi->blk[i].end &&
-		    mi->blk[i].nid != NUMA_NO_NODE)
-			node_set(mi->blk[i].nid, *nodemask);
-}
-
 /**
  * numa_reset_distance - Reset NUMA distance table
  *
@@ -56,7 +42,6 @@ static int __init numa_alloc_distance(void)
 
 	/* size the new table and allocate it */
 	nodes_parsed = numa_nodes_parsed;
-	numa_nodemask_from_meminfo(&nodes_parsed, &numa_meminfo);
 
 	for_each_node_mask(i, nodes_parsed)
 		cnt = i;
@@ -415,7 +400,6 @@ static int __init numa_register_meminfo(struct numa_meminfo *mi)
 
 	/* Account for nodes with cpus and no memory */
 	node_possible_map = numa_nodes_parsed;
-	numa_nodemask_from_meminfo(&node_possible_map, mi);
 	if (WARN_ON(nodes_empty(node_possible_map)))
 		return -EINVAL;
 
-- 
2.43.0