On 4/19/21 11:21 AM, Waiman Long wrote:
On 4/19/21 11:14 AM, Johannes Weiner wrote:
On Sun, Apr 18, 2021 at 08:00:28PM -0400, Waiman Long wrote:
The mod_objcg_state() function is moved from mm/slab.h to
mm/memcontrol.c
so that further optimization can be done to it in later patches without
exposing unnecessary details to other mm components.
Signed-off-by: Waiman Long <longman@xxxxxxxxxx>
---
mm/memcontrol.c | 13 +++++++++++++
mm/slab.h | 16 ++--------------
2 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e064ac0d850a..dc9032f28f2e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3150,6 +3150,19 @@ void __memcg_kmem_uncharge_page(struct page
*page, int order)
css_put(&memcg->css);
}
+void mod_objcg_state(struct obj_cgroup *objcg, struct pglist_data
*pgdat,
+ enum node_stat_item idx, int nr)
+{
+ struct mem_cgroup *memcg;
+ struct lruvec *lruvec = NULL;
+
+ rcu_read_lock();
+ memcg = obj_cgroup_memcg(objcg);
+ lruvec = mem_cgroup_lruvec(memcg, pgdat);
+ mod_memcg_lruvec_state(lruvec, idx, nr);
+ rcu_read_unlock();
+}
It would be more naturally placed next to the others, e.g. below
__mod_lruvec_kmem_state().
But no deal breaker if there isn't another revision.
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Yes, there will be another revision by rebasing patch series on the
linux-next. I will move the function then.
OK, it turns out that mod_objcg_state() is only defined if
CONFIG_MEMCG_KMEM. That was why I put it in the CONFIG_MEMCG_KMEM block
with the other obj_stock functions. I think I will keep it there.
Thanks,
Longman
