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Message-ID: <ZVp6Lt0socttCB9+@casper.infradead.org>
Date: Sun, 19 Nov 2023 21:12:14 +0000
From: Matthew Wilcox <willy@...radead.org>
To: Kairui Song <kasong@...cent.com>
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
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)) {
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