Hi Andrew,
Today's linux-next merge of the akpm tree got a conflict in
mm/memcontrol.c between commit ab5196c202c6 ("memcg: make
mem_cgroup_reparent_charges non failing") from the cgroup tree and commit
"memcg: allow a memcg with kmem charges to be destructed" from the akpm
tree.
I fixed it up (see below) and can carry the fix as necessary (no action
is required).
--
Cheers,
Stephen Rothwell s...@canb.auug.org.au
diff --cc mm/memcontrol.c
index 8f2b789,540bac5..0000000
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@@ -3987,11 -4015,15 +3992,12 @@@ static void mem_cgroup_force_empty_list
*
* Caller is responsible for holding css reference on the memcg.
*/
-static int mem_cgroup_reparent_charges(struct mem_cgroup *memcg)
+static void mem_cgroup_reparent_charges(struct mem_cgroup *memcg)
{
- struct cgroup *cgrp = memcg->css.cgroup;
int node, zid;
+ u64 usage;
do {
- if (cgroup_task_count(cgrp) || !list_empty(&cgrp->children))
- return -EBUSY;
/* This is for making all *used* pages to be on LRU. */
lru_add_drain_all();
drain_all_stock_sync(memcg);
@@@ -4016,7 -4053,11 +4027,9 @@@
* right after the check. RES_USAGE should be safe as we always
* charge before adding to the LRU.
*/
- } while (res_counter_read_u64(&memcg->res, RES_USAGE) > 0);
+ usage = res_counter_read_u64(&memcg->res, RES_USAGE) -
+ res_counter_read_u64(&memcg->kmem, RES_USAGE);
+ } while (usage > 0);
-
- return 0;
}
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