linux-kernel - Re: [PATCH 16/24] mm/swap: reduce scope of get_swap

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Message-ID: <CAMgjq7Aq22AbFC9pWLnwSGDtofu4t9Ew3GrKPHgWtRJcAtoV3A@mail.gmail.com>
Date:   Mon, 20 Nov 2023 19:14:42 +0800
From:   Kairui Song <ryncsn@...il.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        "Huang, Ying" <ying.huang@...el.com>,
        David Hildenbrand <david@...hat.com>,
        Hugh Dickins <hughd@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...e.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 16/24] mm/swap: reduce scope of get_swap_device in swapin path

Matthew Wilcox <willy@...radead.org> 于2023年11月20日周一 05:12写道：
>
> On Mon, Nov 20, 2023 at 03:47:32AM +0800, Kairui Song wrote:
> >       page = swapin_readahead(entry, GFP_HIGHUSER_MOVABLE,
> >                               vmf, &cache_result);
> > -     if (page) {
> > +     if (PTR_ERR(page) == -EBUSY) {
>
>         if (page == ERR_PTR(-EBUSY)) {
>

Thanks, I'll fix this.