linux-kernel - Re: [PATCH v4 61/66] mm/pagewalk: Use vma

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Message-ID: <5e42f3ec-7d3a-0947-ff52-5282e467e3de@suse.cz>
Date:   Thu, 20 Jan 2022 13:43:48 +0100
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Liam Howlett <liam.howlett@...cle.com>,
        "maple-tree@...ts.infradead.org" <maple-tree@...ts.infradead.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Song Liu <songliubraving@...com>,
        Davidlohr Bueso <dave@...olabs.net>,
        "Paul E . McKenney" <paulmck@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Laurent Dufour <ldufour@...ux.ibm.com>,
        David Rientjes <rientjes@...gle.com>,
        Axel Rasmussen <axelrasmussen@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Rik van Riel <riel@...riel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Michel Lespinasse <walken.cr@...il.com>,
        Jerome Glisse <jglisse@...hat.com>,
        Minchan Kim <minchan@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Rom Lemarchand <romlem@...gle.com>
Subject: Re: [PATCH v4 61/66] mm/pagewalk: Use vma_find() instead of vma
 linked list

On 12/1/21 15:30, Liam Howlett wrote:
> From: "Liam R. Howlett" <Liam.Howlett@...cle.com>
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
> Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>

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

> ---
>  mm/pagewalk.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/mm/pagewalk.c b/mm/pagewalk.c
> index 9b3db11a4d1d..fdfea080c5ff 100644
> --- a/mm/pagewalk.c
> +++ b/mm/pagewalk.c
> @@ -456,7 +456,7 @@ int walk_page_range(struct mm_struct *mm, unsigned long start,
>  		} else { /* inside vma */
>  			walk.vma = vma;
>  			next = min(end, vma->vm_end);
> -			vma = vma->vm_next;
> +			vma = find_vma(mm, vma->vm_end);;
>  
>  			err = walk_page_test(start, next, &walk);
>  			if (err > 0) {