linux-kernel - Re: [PATCH -next 2/7] mm: memory: convert do_anonymous

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Message-ID: <Y8F5ulAWxiv8T97r@casper.infradead.org>
Date:   Fri, 13 Jan 2023 15:33:14 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next 2/7] mm: memory: convert do_anonymous_page() to use
 a folio

On Thu, Jan 12, 2023 at 04:30:01PM +0800, Kefeng Wang wrote:
> Convert do_anonymous_page() to use a folio and replace related functions
> to folio functions.

I think this patch has a prerequisite of sorting out
alloc_zeroed_user_highpage_movable().  That way we can get rid of
the 'page' variable inside this function altogether.

>  	inc_mm_counter(vma->vm_mm, MM_ANONPAGES);
>  	page_add_new_anon_rmap(page, vma, vmf->address);

folio_add_new_anon-rmap().

> -	lru_cache_add_inactive_or_unevictable(page, vma);
> +	folio_add_lru_vma(folio, vma);