From: Qi Zheng <qi.zheng@linux.dev>
To: "Harry Yoo (Oracle)" <harry@kernel.org>,
"Lorenzo Stoakes (Oracle)" <ljs@kernel.org>
Cc: Qi Zheng <qi.zheng@linux.dev>,
hannes@cmpxchg.org, hughd@google.com, mhocko@suse.com,
roman.gushchin@linux.dev, shakeel.butt@linux.dev,
muchun.song@linux.dev, david@kernel.org,
lorenzo.stoakes@oracle.com, ziy@nvidia.com,
yosry.ahmed@linux.dev, imran.f.khan@oracle.com,
kamalesh.babulal@oracle.com, axelrasmussen@google.com,
yuanchu@google.com, weixugc@google.com,
chenridong@huaweicloud.com, mkoutny@suse.com,
akpm@linux-foundation.org, hamzamahfooz@linux.microsoft.com,
apais@linux.microsoft.com, lance.yang@linux.dev, bhe@redhat.com,
usamaarif642@gmail.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
Qi Zheng <zhengqi.arch@bytedance.com>
Subject: Re: [PATCH 3/3] mm: memcontrol: correct the nr_pages parameter type of mem_cgroup_update_lru_size()
Date: Wed, 25 Mar 2026 11:34:55 +0800 [thread overview]
Message-ID: <18ee1c67-f905-4b38-8f1e-8a2a77017ceb@linux.dev> (raw)
In-Reply-To: <acMr1nU5PLnHpnwZ@hyeyoo>
On 3/25/26 8:27 AM, Harry Yoo (Oracle) wrote:
> On Tue, Mar 24, 2026 at 12:28:08PM +0000, Lorenzo Stoakes (Oracle) wrote:
>> On Tue, Mar 24, 2026 at 07:31:29PM +0800, Qi Zheng wrote:
>>> From: Qi Zheng <zhengqi.arch@bytedance.com>
>>>
>>> The nr_pages parameter of mem_cgroup_update_lru_size() should clearly
>>> be long instead of int, let's correct it.
>>
>> Hmm, but are you ever going to be adding that many pages? I guess technically
>> correct though.
>
> It has been fine as-is, but reparenting changes that.
> Reparenting in theory could add billions of pages at once!
Right. Thanks for the explanation!
>
> And yeah the commit message could be improved.
Yes, I've omitted a lot of background information, which might seem
abrupt to some reviewers unfamiliar with it. I will improve this in the
next version.
Thanks,
Qi
>
next prev parent reply other threads:[~2026-03-25 3:35 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-24 11:31 [PATCH 0/3] correct the parameter type of some mm functions Qi Zheng
2026-03-24 11:31 ` [PATCH] fix: mm: memcontrol: convert objcg to be per-memcg per-node type Qi Zheng
2026-03-24 11:34 ` Qi Zheng
2026-03-24 11:31 ` [PATCH 1/3] mm: memcontrol: correct the type of stats_updates to unsigned long Qi Zheng
2026-03-24 12:20 ` Lorenzo Stoakes (Oracle)
2026-03-24 11:31 ` [PATCH 2/3] mm: memcontrol: correct the parameter type of __mod_memcg{_lruvec}_state() Qi Zheng
2026-03-24 12:21 ` Lorenzo Stoakes (Oracle)
2026-03-24 14:12 ` Matthew Wilcox
2026-03-24 14:24 ` Lorenzo Stoakes (Oracle)
2026-03-25 1:43 ` Harry Yoo (Oracle)
2026-03-25 3:25 ` Qi Zheng
2026-03-25 5:17 ` Harry Yoo (Oracle)
2026-03-25 7:26 ` Qi Zheng
2026-03-25 7:36 ` Harry Yoo (Oracle)
2026-03-25 7:39 ` Qi Zheng
2026-03-26 7:49 ` Harry Yoo (Oracle)
2026-03-24 11:31 ` [PATCH 3/3] mm: memcontrol: correct the nr_pages parameter type of mem_cgroup_update_lru_size() Qi Zheng
2026-03-24 12:28 ` Lorenzo Stoakes (Oracle)
2026-03-25 0:27 ` Harry Yoo (Oracle)
2026-03-25 3:34 ` Qi Zheng [this message]
2026-03-26 2:35 ` kernel test robot
2026-03-26 3:36 ` Andrew Morton
2026-03-24 11:57 ` [PATCH 0/3] correct the parameter type of some mm functions Lorenzo Stoakes (Oracle)
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=18ee1c67-f905-4b38-8f1e-8a2a77017ceb@linux.dev \
--to=qi.zheng@linux.dev \
--cc=akpm@linux-foundation.org \
--cc=apais@linux.microsoft.com \
--cc=axelrasmussen@google.com \
--cc=bhe@redhat.com \
--cc=chenridong@huaweicloud.com \
--cc=david@kernel.org \
--cc=hamzamahfooz@linux.microsoft.com \
--cc=hannes@cmpxchg.org \
--cc=harry@kernel.org \
--cc=hughd@google.com \
--cc=imran.f.khan@oracle.com \
--cc=kamalesh.babulal@oracle.com \
--cc=lance.yang@linux.dev \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=ljs@kernel.org \
--cc=lorenzo.stoakes@oracle.com \
--cc=mhocko@suse.com \
--cc=mkoutny@suse.com \
--cc=muchun.song@linux.dev \
--cc=roman.gushchin@linux.dev \
--cc=shakeel.butt@linux.dev \
--cc=usamaarif642@gmail.com \
--cc=weixugc@google.com \
--cc=yosry.ahmed@linux.dev \
--cc=yuanchu@google.com \
--cc=zhengqi.arch@bytedance.com \
--cc=ziy@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox