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From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sasha Levin <sashal@kernel.org>,
	Alexandra Diupina <adiupina@astralinux.ru>,
	David Hildenbrand <david@redhat.com>,
	Oscar Salvador <osalvador@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
	Michal Hocko <mhocko@suse.com>,
	linux-mm@kvack.org,
	linux-kernel@vger.kernel.org,
	lvc-project@linuxtesting.org,
	Jinjiang Tu <tujinjiang@huawei.com>,
	Zi Yan <ziy@nvidia.com>,
	Miaohe Lin <linmiaohe@huawei.com>,
	Kefeng Wang <wangkefeng.wang@huawei.com>,
	Luis Chamberalin <mcgrof@kernel.org>,
	Matthew Wilcox <willy@infradead.org>,
	Michal Hocko <mhocko@kernel.org>,
	Pankaj Raghav <kernel@pankajraghav.com>
Subject: Re: [PATCH v2 6.1] mm/memory_hotplug: fix hwpoisoned large folio handling in do_migrate_range()
Date: Mon,  8 Jun 2026 20:52:00 -0400
Message-ID: <20260608-stable-reply-0015@kernel.org>
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> [PATCH v2 6.1] mm/memory_hotplug: fix hwpoisoned large folio handling in
> do_migrate_range()

This inverts the folio_isolate_lru() check on 6.1. In 6.1 folio_isolate_lru()
returns an int (0 on success), not a bool, so the "!folio_isolate_lru(folio)"
condition is backwards here and takes the wrong branch on a successful
isolation.

--
Thanks,
Sasha