linux-kernel - Re: [PATCH] mm/memory-failure: unecessary amount of unmapping

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Message-ID: <20210420004833.GA9675@hori.linux.bs1.fc.nec.co.jp>
Date:   Tue, 20 Apr 2021 00:48:33 +0000
From:   HORIGUCHI NAOYA(堀口　直也) 
        <naoya.horiguchi@....com>
To:     Jane Chu <jane.chu@...cle.com>
CC:     "dan.j.williams@...el.com" <dan.j.williams@...el.com>,
        "dave.jiang@...el.com" <dave.jiang@...el.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "linux-mm@...ck.org" <linux-mm@...ck.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm/memory-failure: unecessary amount of unmapping

On Mon, Apr 19, 2021 at 06:28:21PM -0600, Jane Chu wrote:
> It appears that unmap_mapping_range() actually takes a 'size' as its
> third argument rather than a location, the current calling fashion
> causes unecessary amount of unmapping to occur.
> 
> Fixes: 6100e34b2526e ("mm, memory_failure: Teach memory_failure() about dev_pagemap pages")
> Signed-off-by: Jane Chu <jane.chu@...cle.com>

Thanks,

Reviewed-by: Naoya Horiguchi <naoya.horiguchi@....com>