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Subject: Re: [PATCH] mm/filemap: Adding missing mem_cgroup_uncharge() to
 __add_to_page_cache_locked()
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Miaohe Lin <linmiaohe@huawei.com>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, Johannes Weiner <hannes@cmpxchg.org>,
        Alex Shi <alex.shi@linux.alibaba.com>
References: <20210125042441.20030-1-longman@redhat.com>
 <3b3f2b56-e66a-db5e-8d8e-95f3812c6838@huawei.com>
 <4367cc87-1ebf-6df2-d2d4-939c548ca790@redhat.com>
 <20210125151111.0da207db337a575e5346bd08@linux-foundation.org>
From:   Waiman Long <longman@redhat.com>
Organization: Red Hat
Message-ID: <1b643acd-920a-665e-5ebe-e7413be381da@redhat.com>
Date:   Mon, 25 Jan 2021 18:13:22 -0500
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On 1/25/21 6:11 PM, Andrew Morton wrote:
> On Mon, 25 Jan 2021 09:12:56 -0500 Waiman Long <longman@redhat.com> 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.
>
I see. Thanks for the clarification. I will keep that in mind next time.

Cheers,
Longman