The patch titled
Subject: memcg: do not tweak node in alloc_mem_cgroup_per_node_info
has been removed from the -mm tree. Its filename was
memcg-do-not-tweak-node-in-alloc_mem_cgroup_per_node_info.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: memcg: do not tweak node in alloc_mem_cgroup_per_node_info
alloc_mem_cgroup_per_node_info is allocated for each possible node and
this used to be a problem because !node_online nodes didn't have
appropriate data structure allocated. This has changed by "mm: handle
uninitialized numa nodes gracefully" so we can drop the special casing
here.
Link: https://lkml.kernel.org/r/20220127085305.20890-7-mhocko@xxxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Alexey Makhalov <amakhalov@xxxxxxxxxx>
Cc: Dennis Zhou <dennis@xxxxxxxxxx>
Cc: Eric Dumazet <eric.dumazet@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Nico Pache <npache@xxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Rafael Aquini <raquini@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
--- a/mm/memcontrol.c~memcg-do-not-tweak-node-in-alloc_mem_cgroup_per_node_info
+++ a/mm/memcontrol.c
@@ -5020,18 +5020,8 @@ struct mem_cgroup *mem_cgroup_from_id(un
static int alloc_mem_cgroup_per_node_info(struct mem_cgroup *memcg, int node)
{
struct mem_cgroup_per_node *pn;
- int tmp = node;
- /*
- * This routine is called against possible nodes.
- * But it's BUG to call kmalloc() against offline node.
- *
- * TODO: this routine can waste much memory for nodes which will
- * never be onlined. It's better to use memory hotplug callback
- * function.
- */
- if (!node_state(node, N_NORMAL_MEMORY))
- tmp = -1;
- pn = kzalloc_node(sizeof(*pn), GFP_KERNEL, tmp);
+
+ pn = kzalloc_node(sizeof(*pn), GFP_KERNEL, node);
if (!pn)
return 1;
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
mm-page_alloc-add-same-penalty-is-enough-to-get-round-robin-order.patch
mm-page_alloc-add-penalty-to-local_node.patch
