From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 013.lax.mailroute.net (013.lax.mailroute.net [199.89.1.16]) (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 9C2C2413783; Fri, 24 Jul 2026 21:09:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.16 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784927345; cv=none; b=hPDMBBSfdMhHwkCy1E2si1YkvThUi2ij+tfo0m2ZHtrYiGphNZTwFMdHKWbOrYgmoHlWygyGEvDpnTkG4CQxFF2NsskbTGzA5C3BEhzVE2llcnMdVfCLWERHabUkoFsy09QygwnoFLIewlaqDKSSG8sNpJRqLUCo/CWqb94MF7k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784927345; c=relaxed/simple; bh=FRIggP1YvWWV3rj+5WU1Cj2nMoZrQOSbDSPE/2jMC40=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=MFNzmUiKkDmKAIzSqxEmnkBfFxSijyOdiFKI0TLRgk2iWjVcBRx8p5i162WWwdWwj/0eiJybmWDUr0LO/JvdlT7MRD6sghVVK6orovGw4+woLXDwAiq4AC61scQTBa6FwUO6rbOv33gAfTVn8ANJs0O1gdx8ilhhj4eVKcl9s14= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=nrusQrhQ; arc=none smtp.client-ip=199.89.1.16 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="nrusQrhQ" Received: from localhost (localhost [127.0.0.1]) by 013.lax.mailroute.net (Postfix) with ESMTP id 4h6LFm2P3xzlfvpc; Fri, 24 Jul 2026 21:09:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:content-type:content-type:in-reply-to :from:from:content-language:references:subject:subject :user-agent:mime-version:date:date:message-id:received:received; s=mr01; t=1784927336; x=1787519337; bh=FRIggP1YvWWV3rj+5WU1Cj2n MoZrQOSbDSPE/2jMC40=; b=nrusQrhQSEljsn2S6l66GEy9kxAkJkZe4SEmqkNz Uc41Y+GvkK01BnkiWcb+kyRnOUNhZCprEqB8ddGutjBhvSozV2NPgFSwz7ySharc pi2BcPt87yHut4pW30cJSVNDtkUUhPH8sSVWGsssVKC9xSb+lqe328C1P/tUwlcy 5xSqvG3Qq7wGVMO4N0w3hBpJzAtgWk1kFmniMrAbMbKhDQg5Copl5hPD28FlnvXl xHh8W1Cri1ChPYHX1EqEkZEcpGqdT8usBQ2R/6ubpeJrg5ZpDJnTFvEoVdwFh7UE 6O/lrCUh5njbP8M1gNa50IfjN20CVew9hegGawyPtNWwIg== X-Virus-Scanned: by MailRoute Received: from 013.lax.mailroute.net ([127.0.0.1]) by localhost (013.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id 3_bfYDR74_ef; Fri, 24 Jul 2026 21:08:56 +0000 (UTC) Received: from [100.119.48.131] (unknown [104.135.180.219]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 013.lax.mailroute.net (Postfix) with ESMTPSA id 4h6LFd1TjRzlfvpW; Fri, 24 Jul 2026 21:08:52 +0000 (UTC) Message-ID: <21529ecb-6d15-4348-824c-b7682bcd7ad9@acm.org> Date: Fri, 24 Jul 2026 14:08:52 -0700 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 V5 6/9] null_blk: clean up null_del_dev() to use cached dev pointer To: Zizhi Wo , axboe@kernel.dk, dlemoal@kernel.org, nilay@linux.ibm.com, kch@nvidia.com, johannes.thumshirn@wdc.com, kbusch@kernel.org, linux-block@vger.kernel.org Cc: linux-kernel@vger.kernel.org, yangerkun@huawei.com, chengzhihao1@huawei.com, wozizhi@huawei.com References: <20260714041805.1088702-1-wozizhi@huaweicloud.com> <20260714041805.1088702-7-wozizhi@huaweicloud.com> Content-Language: en-US From: Bart Van Assche In-Reply-To: <20260714041805.1088702-7-wozizhi@huaweicloud.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Reviewed-by: Bart Van Assche