All of lore.kernel.org
 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 [PATCH] memcg: manually uninline __memcg_memory_event 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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.