@@ -3719,6 +3721,8 @@ move_account:
/* This is for making all *used* pages to be on LRU. */
lru_add_drain_all();
drain_all_stock_sync(memcg);
+ if (!free_all)
+ memcg_kmem_move(memcg);
Any reason we're not moving kmem charges when free_all is set as well?
Because the slab moving code expects to be synchronized with
allocations (and itself). We can't call it when there are still tasks
in the cgroup.
Ok.
Please add an explanation about that.
Oh boy, reading it all now, I started to believe that "free_all" is a
really poor name =(
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