Re: [PATCH] mm/filemap: Adding missing mem_cgroup_uncharge() to __add_to_page_cache_locked()

[Andrew Morton]

On Mon, 25 Jan 2021 09:12:56 -0500 Waiman Long <longman@xxxxxxxxxx> wrote:

> Yes, this patch should go to stable. I think the stable tree maintainers 
> will automatically pick up patches with the "Fixes" tag. That is why I 
> don't explicitly put a "cc:stable" line in the patch.

No.  Both the Fixes: and the cc:stable are needed for the backport. 
Because sometimes we fix things but don't consider the fix important
enough to risk the backport.