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
next prev 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
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