linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
From: Michal Hocko <mhocko@suse.com>
To: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Roman Gushchin <roman.gushchin@linux.dev>,
	Muchun Song <muchun.song@linux.dev>,
	linux-mm@kvack.org, cgroups@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Meta kernel team <kernel-team@meta.com>
Subject: Re: [PATCH] memcg: manually uninline __memcg_memory_event
Date: Thu, 23 Oct 2025 15:18:14 +0200	[thread overview]
Message-ID: <aPorFhxQc7K5iLZc@tiehlicka> (raw)
In-Reply-To: <20251021234425.1885471-1-shakeel.butt@linux.dev>

On Tue 21-10-25 16:44:25, Shakeel Butt wrote:
> The function __memcg_memory_event has been unnecessarily marked inline
> even when it is not really performance critical. It is usually called
> to track extreme conditions. Over the time, it has evolved to include
> more functionality and inlining it is causing more harm.
> 
> Before the patch:
> $ size mm/memcontrol.o net/ipv4/tcp_input.o net/ipv4/tcp_output.o
>    text    data     bss     dec     hex filename
>   35645   10574    4192   50411    c4eb mm/memcontrol.o
>   54738    1658       0   56396    dc4c net/ipv4/tcp_input.o
>   34644    1065       0   35709    8b7d net/ipv4/tcp_output.o
> 
> After the patch:
> $ size mm/memcontrol.o net/ipv4/tcp_input.o net/ipv4/tcp_output.o
>    text    data     bss     dec     hex filename
>   35137   10446    4192   49775    c26f mm/memcontrol.o
>   54322    1562       0   55884    da4c net/ipv4/tcp_input.o
>   34492    1017       0   35509    8ab5 net/ipv4/tcp_output.o
> 
> Signed-off-by: Shakeel Butt <shakeel.butt@linux.dev>

Acked-by: Michal Hocko <mhocko@suse.com>

As the only user is in tree should we make that EXPORT_SYMBOL_GPL
instead?

-- 
Michal Hocko
SUSE Labs


  parent reply	other threads:[~2025-10-23 13:18 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-21 23:44 Shakeel Butt
2025-10-22  0:58 ` SeongJae Park
2025-10-22  1:28   ` Shakeel Butt
2025-10-22  2:15     ` SeongJae Park
2025-10-22 18:10     ` Roman Gushchin
2025-10-23 13:18 ` Michal Hocko [this message]
2025-10-23 21:35   ` Shakeel Butt
2025-10-24  6:50     ` Michal Hocko
2025-10-27  7:19   ` Christoph Hellwig

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=aPorFhxQc7K5iLZc@tiehlicka \
    --to=mhocko@suse.com \
    --cc=akpm@linux-foundation.org \
    --cc=cgroups@vger.kernel.org \
    --cc=hannes@cmpxchg.org \
    --cc=kernel-team@meta.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=muchun.song@linux.dev \
    --cc=roman.gushchin@linux.dev \
    --cc=shakeel.butt@linux.dev \
    /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