No callsite ever passes a NULL pointer for a struct mem_cgroup * to
the committing function. There is no need to check for it.
Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>
---
mm/memcontrol.c | 4 ----
1 files changed, 0 insertions(+), 4 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 031ff07..a145c9e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2092,10 +2092,6 @@ static void __mem_cgroup_commit_charge(struct mem_cgroup *mem,
{
int nr_pages = page_size >> PAGE_SHIFT;
- /* try_charge() can return NULL to *memcg, taking care of it. */
- if (!mem)
- return;
-
lock_page_cgroup(pc);
if (unlikely(PageCgroupUsed(pc))) {
unlock_page_cgroup(pc);
--
1.7.4
--
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