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-rw-r--r--mm/memcontrol.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 79abb1fd39d2..50eb50e100fd 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1837,8 +1837,15 @@ static int __mem_cgroup_do_charge(struct mem_cgroup *mem, gfp_t gfp_mask,
flags |= MEM_CGROUP_RECLAIM_NOSWAP;
} else
mem_over_limit = mem_cgroup_from_res_counter(fail_res, res);
-
- if (csize > PAGE_SIZE) /* change csize and retry */
+ /*
+ * csize can be either a huge page (HPAGE_SIZE), a batch of
+ * regular pages (CHARGE_SIZE), or a single regular page
+ * (PAGE_SIZE).
+ *
+ * Never reclaim on behalf of optional batching, retry with a
+ * single page instead.
+ */
+ if (csize == CHARGE_SIZE)
return CHARGE_RETRY;
if (!(gfp_mask & __GFP_WAIT))