linux-kernel - Re: [PATCH v7 14/17] mm: remove extra vma_numab_state

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Message-ID: <d61ba920-13bd-4e38-9200-97d00a4feba5@suse.cz>
Date: Wed, 8 Jan 2025 19:04:09 +0100
From: Vlastimil Babka <vbabka@...e.cz>
To: Suren Baghdasaryan <surenb@...gle.com>, akpm@...ux-foundation.org
Cc: peterz@...radead.org, willy@...radead.org, liam.howlett@...cle.com,
 lorenzo.stoakes@...cle.com, mhocko@...e.com, hannes@...xchg.org,
 mjguzik@...il.com, oliver.sang@...el.com, mgorman@...hsingularity.net,
 david@...hat.com, peterx@...hat.com, oleg@...hat.com, dave@...olabs.net,
 paulmck@...nel.org, brauner@...nel.org, dhowells@...hat.com,
 hdanton@...a.com, hughd@...gle.com, lokeshgidra@...gle.com,
 minchan@...gle.com, jannh@...gle.com, shakeel.butt@...ux.dev,
 souravpanda@...gle.com, pasha.tatashin@...een.com, klarasmodin@...il.com,
 corbet@....net, linux-doc@...r.kernel.org, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, kernel-team@...roid.com
Subject: Re: [PATCH v7 14/17] mm: remove extra vma_numab_state_init() call

On 12/26/24 18:07, Suren Baghdasaryan wrote:
> vma_init() already memset's the whole vm_area_struct to 0, so there is
> no need to an additional vma_numab_state_init().
> 
> Signed-off-by: Suren Baghdasaryan <surenb@...gle.com>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>

> ---
>  include/linux/mm.h | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 99f4720d7e51..40bbe815df11 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -947,7 +947,6 @@ static inline void vma_init(struct vm_area_struct *vma, struct mm_struct *mm)
>  	vma->vm_mm = mm;
>  	vma->vm_ops = &vma_dummy_vm_ops;
>  	INIT_LIST_HEAD(&vma->anon_vma_chain);
> -	vma_numab_state_init(vma);
>  	vma_lockdep_init(vma);
>  	vma_init_lock(vma, false);
>  }