The patch titled Subject: fork, memcg: fix cached_stacks case has been removed from the -mm tree. Its filename was fork-memcg-fix-cached_stacks-case.patch

This patch was dropped because it was merged into mainline or a subsystem tree

------------------------------------------------------ From: Shakeel Butt shakeelb@google.com Subject: fork, memcg: fix cached_stacks case

5eed6f1dff87 ("fork,memcg: fix crash in free_thread_stack on memcg charge fail") fixes a crash caused due to failed memcg charge of the kernel stack. However the fix misses the cached_stacks case which this patch fixes. So, the same crash can happen if the memcg charge of a cached stack is failed.

Link: http://lkml.kernel.org/r/20190102180145.57406-1-shakeelb@google.com Fixes: 5eed6f1dff87 ("fork,memcg: fix crash in free_thread_stack on memcg charge fail") Signed-off-by: Shakeel Butt shakeelb@google.com Acked-by: Michal Hocko mhocko@suse.com Acked-by: Rik van Riel riel@surriel.com Cc: Rik van Riel riel@surriel.com Cc: Roman Gushchin guro@fb.com Cc: Johannes Weiner hannes@cmpxchg.org Cc: Tejun Heo tj@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

kernel/fork.c | 1 + 1 file changed, 1 insertion(+)

--- a/kernel/fork.c~fork-memcg-fix-cached_stacks-case +++ a/kernel/fork.c @@ -217,6 +217,7 @@ static unsigned long *alloc_thread_stack memset(s->addr, 0, THREAD_SIZE);

tsk->stack_vm_area = s; + tsk->stack = s->addr; return s->addr; }

_

Patches currently in -mm which might be from shakeelb@google.com are

memcg-localize-memcg_kmem_enabled-check.patch memcg-schedule-high-reclaim-for-remote-memcgs-on-high_work.patch