From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f43.google.com (mail-io1-f43.google.com [209.85.166.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C6A267C0A8 for ; Wed, 24 Jan 2024 15:40:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.43 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706110832; cv=none; b=bL1qT/NXomvB3YXx/1e5QRwcR+vf9j/JN8/zfByLjSYHz3nZVr/+5QJpyWc4EdtsfJN0zOSQHc/FScb88+qjlThftOjeQX0D9jf8BAIPaS8yZidLuP+22LRwOsK2vp9hJmHHoYaedceREuuD0jlD/rQzCCCHIqf8UIvchaMB91U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706110832; c=relaxed/simple; bh=HmA5/Of8RA57iGWfYNJOIJnsqWGKdGPvKLPPKII9WVw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=lpwl03xYi+wjmrX7arVrQSwHZrR3JswSlzBsU5xJ5HoWlkAm8iuGZAxcw+k1lrtePyNksvifbkrYuZkhoOoUZjpQVyzx9McJihkpG63M3y+o3jGVUFkcMsVeKwhDAMk7SvYFEE5UeCFMpTSZ3ibp46L/gaNJZzoufyL5aJQEfNU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=1wYFMkBw; arc=none smtp.client-ip=209.85.166.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="1wYFMkBw" Received: by mail-io1-f43.google.com with SMTP id ca18e2360f4ac-7bbdd28a52aso70554839f.1 for ; Wed, 24 Jan 2024 07:40:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1706110830; x=1706715630; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=Sp30z39qJ5sIlGwmXa8064qBxWqWmADfo1Qv+7GX/z4=; b=1wYFMkBwxT9H6Ek12BTig87oWFLw5/ow3hgEQK3TicbDHwYuhI3xGPeLASGx5lXFaf 8j+xlnIEzZ1PRqazoDaanmfAfYomKkWKXyzJ7ZhMjWIXeBLYO/eVXsOW9N2syPb5pzR6 5rQRoWB8VJsym7y9Ms/mRzisvhSr4te4F8qqpXfk/DH04Nv2GAeNQKunTmqUd8m9dnIp p1JEN2opiTTdarIEiTey9BR9jghRvCUmtohVyy5a7a4qd/r9HhlbcaDVKyxNlxjOCwVb hN8XPIL/tgU4YnHTp/RVxogQW2xCQXf2zzEBHFRJBOrumEO29lu++rsqJMxBgVDIVVmR Ttzw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706110830; x=1706715630; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Sp30z39qJ5sIlGwmXa8064qBxWqWmADfo1Qv+7GX/z4=; b=DTjAY9CHRZtVpNIMQvWdjRXQ/mBl6lKZotZ3t4n235LE25KRh46nTgzo9yv2/L4fxL hRjpTR7eP8QGz11WWhjhUmWpC0Pr8nSEeHaAhpPD4hHZbCcz+XUOxkSFNYFnbzwbAego xUqIYqNIK1JIXz0Y4YHRfLBE59dAAsQ/apQ6b2h+lu8q0Dc8Icw+6hw/k2hhO69ujWoU FcMLt6w+ndA27zSKaGi2Fl+S0f4XiOHyls3jxjF0mwmpOGbWp6LjsOj8auWQ6gTbOp5p HSNuxUTscehsM+kx74dH8FoEwPN3kPhG6/Uae9Q/zVJnGbAhwUojuc/HPhTnMpoy9Mnj 9bcg== X-Gm-Message-State: AOJu0Yx7nXPAWuCvp6NFMNjgPyvS4qRxNyVOlXQSB6j52u6GKLnfeJUw 3nI3xPahjVUY2jWD0N5DrrmMyUyDpx2nBUgS1kFp0r5Bl//nTHrl4pW8ILKomzo= X-Google-Smtp-Source: AGHT+IFPlmLegu6UaxmmOMcq0IbOOnny9YxFFPLKn1lRDPjZsbjV+UoKWJadiitSxpImMLFrcagtjg== X-Received: by 2002:a05:6e02:219a:b0:360:7937:6f7 with SMTP id j26-20020a056e02219a00b00360793706f7mr3125990ila.3.1706110829953; Wed, 24 Jan 2024 07:40:29 -0800 (PST) Received: from [192.168.1.116] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id j26-20020a056e02221a00b00361a166564csm4476442ilf.4.2024.01.24.07.40.29 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Jan 2024 07:40:29 -0800 (PST) Message-ID: Date: Wed, 24 Jan 2024 08:40:28 -0700 Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH, RFC] block: set noio context in submit_bio_noacct_nocheck Content-Language: en-US To: Christoph Hellwig Cc: linux-block@vger.kernel.org, tj@kernel.org, jiangshanlai@gmail.com, linux-kernel@vger.kernel.org References: <20240124093941.2259199-1-hch@lst.de> From: Jens Axboe In-Reply-To: <20240124093941.2259199-1-hch@lst.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 1/24/24 2:39 AM, Christoph Hellwig wrote: > Make sure all in-line block layer submission runs in noio reclaim > context. This is a big step towards allowing GFP_NOIO, the other > one would be to have noio (and nofs for that matter) workqueues for > kblockd and driver internal workqueues. I really don't like adding this for no good reason. Who's doing non NOIO allocations down from this path? -- Jens Axboe