From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=199.89.1.14 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793739093; b=Y392jxThhgrf2/06ZTD1hsf2lh5ol5h3uzZowfPnH6N8uBXvXXxj1MJJPnRjRz5b8+fe /fNwCx+lKXcpEg2oqzO4br4XVuJs7C12Yk4+RS5KtJdOTyMQXb41h/fXhUFib/q1jeQPW mp6ooSQsuTgNXlC9BNltAFHUAujiOG5br4SgnkWGqgx+/2D556mBK880zi/QCXIsPqt6p wJPlF03YUOr5CO7YhLs09kk8N6s0IZoAGJ9zFv4bnYeLImN70zIBL/wMHbrRZmh/CEcCN BIT8oE3mIrTrazC2Lbf9VZ9qrbRT9/+A94uxG0MMyWUL4gDU/GkLdolv2iHEnHWaNOQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793739093; h=DMARC-Filter:Received:DKIM-Signature:X-Virus-Scanned:Received: Received:Message-ID:Date:MIME-Version:User-Agent:Subject:To:Cc: References:Content-Language:From:In-Reply-To:Content-Type: Content-Transfer-Encoding; bh=ImfCTvx9zEM0hCgk0rF4q02G78x6VIbWM4Sk8YP8Ob0=; b=3mJvC8AMMMkNUjxwW3UuxdhbDvCi6/dZDjsUQuCR4fG6su+vpAj+iMG0rmZMb/8Zc3dx 1Nvy7rCASVE5hkD3b6gyqt4j/kZHwsYdlA/9pERI3dT3917d04xcWDa0VKLP8mDsUvrmT foreV0jEPcWW7hJIu5GyN1KkOouXq1JewxYDeoBC6iGMkVU6ODLBZ1Ve1hPho3lOr/CJK 0i6IQcCOA/c6saQhEDq1CQgbdPcd/3A2SQBwPL0jRa8wl8blsh2BzZLvKbsu57Ci2JI/e YeSbSfsPCEK6cl7yqS6MGfNUE83saoFp8XIyeT47PvNpGDXW4tt7yka5sdFhowBxEGg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass header.d=acm.org header.i=@acm.org header.a=rsa-sha256 header.s=mr01 header.b="10zhzj/c"; arc=none smtp.remote-ip=199.89.1.14 Received: from 011.lax.mailroute.net (011.lax.mailroute.net [199.89.1.14]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BCD0F606A324; Tue, 3 Nov 2026 20:51:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org BCD0F606A324 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, unprotected) header.d=acm.org header.i=@acm.org header.a=rsa-sha256 header.s=mr01 header.b=10zhzj/c Received: from localhost (localhost [127.0.0.1]) by 011.lax.mailroute.net (Postfix) with ESMTP id 4jK12X1QzGz1XM30j; Tue, 3 Nov 2026 20:51:32 +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=1793739090; x=1796331091; bh=ImfCTvx9zEM0hCgk0rF4q02G 78x6VIbWM4Sk8YP8Ob0=; b=10zhzj/cEmoTYtBDFc+VkMpDCeZJyLXhcYMLX5Sc Auh8TSc0cEPz0TJ1NPb8iFqEZTZmQUh5hsfbDDGNnqsdP0rFPMa3TIkqM4jRUNhD wDmhUNk+H3joOIu7TDmps2jIf+IxlV5el89pdmbPB05pAED9no28ZlKZ41a7rM1K 4Ur7M2aQnxyHEh00NeNSVlQrQ7S9aPD5L2GXJDuwrK1lhDtQYfcesxZEo6nDDbtV g7L71EMfofKkEzDinYelDFrTHmsqRWbdfhI3+sAWnTfIAQoKogrkQdtet3CMabh/ zH+xhaIt16DSEP+nreCD5dV4y7Yt7k7u8K/2qLxYGbJU6Q== X-Virus-Scanned: by MailRoute Received: from 011.lax.mailroute.net ([127.0.0.1]) by localhost (011.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id t_SHQYvpfgLy; Tue, 3 Nov 2026 20:51:30 +0000 (UTC) Received: from [100.80.231.125] (unknown [104.135.182.41]) (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 011.lax.mailroute.net (Postfix) with ESMTPSA id 4jK12T68Y1z1XM30h; Tue, 3 Nov 2026 20:51:29 +0000 (UTC) Message-ID: Date: Tue, 3 Nov 2026 12:51:29 -0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] block: Keep RPM_ACTIVE in blk_pre_runtime_resume() when already active To: Brian Norris Cc: Stanley Jhu , Jens Axboe , "Rafael J . Wysocki" , Praveen Talari , Alan Stern , linux-block@vger.kernel.org, linux-pm@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20261029040001.2100001-1-stanleyjhu@google.com> <8125a75a-ea47-49f8-90e4-7f7c83db90e2@acm.org> Content-Language: en-US From: Bart Van Assche In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 11/3/26 11:49 AM, Brian Norris wrote: > Pardon me if I'm misreading/misunderstanding, but I believe your > suggestion is essentially to unwind the quoted commit 6e1fcab00a23, > which might reintroduce a deadlock. Hmm ... I think that you are right. Let me take another look at this patch. Bart.