| From: Wei Yang <richard.weiyang@gmail.com> |
| Subject: mm/memcg: mz already removed from rb_tree if not NULL |
| |
| When mz is not NULL, it means mz can either come from |
| mem_cgroup_largest_soft_limit_node or |
| __mem_cgroup_largest_soft_limit_node. And both of them have removed this |
| node by __mem_cgroup_remove_exceeded(). |
| |
| Not necessary to call __mem_cgroup_remove_exceeded() again. |
| |
| [mhocko@suse.com: refine changelog] |
| Link: https://lkml.kernel.org/r/20220314233030.12334-1-richard.weiyang@gmail.com |
| Signed-off-by: Wei Yang <richard.weiyang@gmail.com> |
| Acked-by: Michal Hocko <mhocko@suse.com> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| --- |
| |
| mm/memcontrol.c | 1 - |
| 1 file changed, 1 deletion(-) |
| |
| --- a/mm/memcontrol.c~mm-memcg-mz-already-removed-from-rb_tree-if-not-null |
| +++ a/mm/memcontrol.c |
| @@ -3418,7 +3418,6 @@ unsigned long mem_cgroup_soft_limit_recl |
| gfp_mask, total_scanned); |
| nr_reclaimed += reclaimed; |
| spin_lock_irq(&mctz->lock); |
| - __mem_cgroup_remove_exceeded(mz, mctz); |
| |
| /* |
| * If we failed to reclaim anything from this memory cgroup |
| _ |
