linux-kernel - Re: [PATCH] mm: remove redundant check in handle_mm

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Message-ID: <df3997ed-a844-597b-fbb1-154caad78543@redhat.com>
Date:   Mon, 6 Mar 2023 14:49:34 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Haifeng Xu <haifeng.xu@...pee.com>, akpm@...ux-foundation.org
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm: remove redundant check in handle_mm_fault

On 06.03.23 03:49, Haifeng Xu wrote:
> mem_cgroup_oom_synchronize() has checked whether current memcg_in_oom is
> set or not, so remove the check in handle_mm_fault().

"mem_cgroup_oom_synchronize() will returned immediately if memcg_in_oom 
is not set, so remove the check from handle_mm_fault()".

However, that requires now always an indirect function call -- do we 
care about dropping that optimization?

-- 
Thanks,

David / dhildenb