From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F311E86334; Wed, 5 Nov 2025 16:31:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762360286; cv=none; b=qYbsYYxSSlillNyqRe1Iq0Y9TMV/5Y4bGM4RUgFNsC8XwFZU12ZVkhZcCVSTgdufByWNjUS1Z9jo0uIEqQMZu+FTOsKGsmrkztXPSjxNQjzMJVArSPKvFa2ig7/4Qei6Xc7caWjr0j6VW/7I3p6OyhS4m/RlMOLYNBqSwx9AAhA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762360286; c=relaxed/simple; bh=TmRrpB0daG+yPB62aM1A8jn2xEuVx2ZGsuNa8VIp1BE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=prRT+WS/WYi49fcjnJTBPw38N/+jYY23/nYA1ngRn/h+ZJ8qxfb2Kcu/CuihTB2nUazny4LcApXD3XnHUebRIfjqTi8b0zRCiNeLtv6MxUmcmEQ/C1l/JGnGlEq4VhcY+H7ftVWG4MX/JOQ+rLGOAVwsug9QjPvGWgjgNR17/8c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ijEkyMqm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ijEkyMqm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 01482C116B1; Wed, 5 Nov 2025 16:31:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762360285; bh=TmRrpB0daG+yPB62aM1A8jn2xEuVx2ZGsuNa8VIp1BE=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=ijEkyMqmeSjERxDhaNRmHwC2BUD941UDTprg2ZbUH/lkPuqTb6gaoQ7rolMqAh2cU 9twtFfFUOOTh7H0k574+fak4UatdGPaPkx19NaI7ix+tBaFaywtHqm1KV8WJ7x0Yv4 zG0ogxLM7btV1owwW6q38fT+OA0No40QP6TVlL1dK2sVe7+C2cb9YOXLV2JonKjWSV q/83Kcw4DjS4gbBViscwdwh6UX4a2nFYWsnpbVm3PVmm8qEKq5IzwMOM/lbNvxnfVJ KVXNSVz90pH1NquNUMff6nvLcz6F6aUrKvBZYVZtw5xcdCWpT4fg0Ov0Oluw76yQEY bAonIW4CjndSA== Message-ID: Date: Wed, 5 Nov 2025 17:31:19 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm/huge_memory: fix folio split check for anon folios in swapcache. To: Zi Yan , Andrew Morton , Wei Yang Cc: Lorenzo Stoakes , Baolin Wang , "Liam R. Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20251105162910.752266-1-ziy@nvidia.com> From: "David Hildenbrand (Red Hat)" Content-Language: en-US In-Reply-To: <20251105162910.752266-1-ziy@nvidia.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 05.11.25 17:29, Zi Yan wrote: Nit: drop trailing "." in subject. I'm sure Andrew can fix that up :) > Both uniform and non uniform split check missed the check to prevent > splitting anon folios in swapcache to non-zero order. Fix the check. > > Fixes: 58729c04cf10 ("mm/huge_memory: add buddy allocator like (non-uniform) folio_split()") > Reported-by: "David Hildenbrand (Red Hat)" > Closes: https://lore.kernel.org/all/dc0ecc2c-4089-484f-917f-920fdca4c898@kernel.org/ > Cc: stable@vger.kernel.org > Signed-off-by: Zi Yan > --- Thanks! Acked-by: David Hildenbrand (Red Hat) -- Cheers David