From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f180.google.com (mail-oi1-f180.google.com [209.85.167.180]) (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 30F4836CDEB for ; Wed, 20 Aug 2025 19:02:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.180 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755716543; cv=none; b=XHvvWyYwXbui/asezt+qGIv9+XoMVHBwelyJC5IvEpv15U0ezAZ08e5x4qfsAGedjEsGJAXq+WAH0qJU2bDEuUiJnueMsLC+/o1vo5ihNpJvLAGgdvkZNTSHrtvt2jbHZhChj+vBsBu24A5NgwMD6v2zdDUu3HDjZQOr4ZJ0VHM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755716543; c=relaxed/simple; bh=WNpoeRJgBvYgC7+JitZL+Ny2DDwIDFsAea8R/ACJ8wA=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=bN36U1UqSL7tjEGdfK6h/JQyyvRHfysQK56rabm/sSxVAlr4dGLLdev+JUj/bh00iE+uFC/IWcqXCyoMQQU+NQlb3ShUTq8u9XwstgnbW3wJ4wH3+tKGvpETBcMzGv4urS69Uxfai+tY59Mwl/KEvNabIf0bbudzmA5d2ZMCeJY= 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=Co7gE49h; arc=none smtp.client-ip=209.85.167.180 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="Co7gE49h" Received: by mail-oi1-f180.google.com with SMTP id 5614622812f47-435de70ed23so157259b6e.1 for ; Wed, 20 Aug 2025 12:02:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1755716540; x=1756321340; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id:from :to:cc:subject:date:message-id:reply-to; bh=gT0wU22HIJ6M3eQbOipqoVrJ93lojIEBXuanCmtFCHI=; b=Co7gE49h7vGUBB10mOnSn3hYYWhxw9joSKpl5NzTsuliSUleSQAw1EIuKjkOfflYoM RtgDZmwzUBF2zMGRIOkoJcugW78oJxbBQYVBl+LFX6/0pv71xAIC0eF1I1mMJ8t/AhaT 23+I/dzCB25iJXTMC87aI90WSq2ngoAAUl/m+vcbg0E1CxRX0F4UUyQPfNfodDcNEY8A vscUQnV4ckcvFXErYJXmeyi9Mupe4VzMb22UpyZWhYYOLWzziGXF6HwtA8OjN3Cww/iH KxthqDr8rZQuLSdXOCG9COQc5Uspe69yf5ZZe5D38/0l1cB17Zg+AyQIsBNoJsK6gvHn jZMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755716540; x=1756321340; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=gT0wU22HIJ6M3eQbOipqoVrJ93lojIEBXuanCmtFCHI=; b=RYy9ZiREO+jvRRySi8q1HiVVal4iM9/kYAPvvOzE8ylvzgkp/V+4ZCwrW65H+bfsrh 21L9G990yERr7C5TdD5cH7+yzWcf8K7wmDe77eaHfvvhUFvpvMZeE6fZi1J/+qrFDpZj 8GjMet/fSe/dQgWboyc4Kn6L3wgtIOeUk3ht2Fnk8hI5hHXJSafslAGwRxg2nD4ujaVq DzW1uw1VLL0f5xTdJGuzYfkBQkAZWOKadpRuuVjU8Miv321UoOYx5+zMZbj3QC/lJEAr X7MXG6RwEyOODL71ewKhfOrt6N9+g3sDL3oCybGANeeqjwqbbauf9cAB9qIM4AxYfcrU kT6w== X-Forwarded-Encrypted: i=1; AJvYcCWzpHHZgiipOQrLsRGmJzh+hUSK/dmL5868Vc1mdgQUkFGPFknw0g1hsQUU9K6An8ezoR1qVUqlaw==@vger.kernel.org X-Gm-Message-State: AOJu0YwTTUamdYGnBWR3NcPmpmZdcA0VRVWk1pP8dqbRZg8kvQHJSoeg UBm5KtrFCmVl5wo1vVfZDLe6IikQ8Gfk99PYBqllispic9OXQQFfBydQRrt/m02NPkY= X-Gm-Gg: ASbGncs5VZCApEbFp0VgvB1tnzgvLUgDmYWpL2shmhKMGNHp1zK/lpkuzaPdf2YBncH 8lezhILCuquMtKFPPbjNBy8bTSGz3BKXugd4W4YAVPzQ8mAqrmIOpRSQXPAkcr0SDYXYJKkIu3p 6q7rmtgDzI0qOrwqFEArdz41OiVM4VM2WTHSRL32Xdv6nmAxcE9XKcJ1Sx8F9Di+yTmu1eHMued ELZHyqpnYPPMovq4dyDkJQAbnK1lEY7vp+OQnZ8WgCXcUv8od6K3w9HbM91vLzs7W+53yTmf67Q v3IdoU/SgvXr+fsIg+UKyLEvoE84jTgDC+H8kH+JH91+f85+/8mOZE39FhTnurMxHyA2UgGmC5A 6U47icZfmV81x+69dkYniMVgSyNT5Vg== X-Google-Smtp-Source: AGHT+IGkxdRBFLqwpI1c1NLzvRX0u3QtkrVD6ZfK8wjelNpyVzWiFcDh1FjPZa1JChcL4M2LXZvDZQ== X-Received: by 2002:a05:6808:2f11:b0:437:75ea:6c84 with SMTP id 5614622812f47-43775ea72c5mr972649b6e.47.1755716540164; Wed, 20 Aug 2025 12:02:20 -0700 (PDT) Received: from [192.168.1.116] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-50c947d4976sm4442563173.36.2025.08.20.12.02.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 20 Aug 2025 12:02:19 -0700 (PDT) Message-ID: Date: Wed, 20 Aug 2025 13:02:18 -0600 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [zcrx-next 0/2] add support for synchronous refill To: Pavel Begunkov , io-uring@vger.kernel.org References: <175571405086.442349.7150561067887044481.b4-ty@kernel.dk> Content-Language: en-US From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/20/25 12:57 PM, Pavel Begunkov wrote: > On 8/20/25 19:20, Jens Axboe wrote: >> >> On Sun, 17 Aug 2025 23:44:56 +0100, Pavel Begunkov wrote: >>> Returning buffers via a ring is efficient but can cause problems >>> when the ring doesn't have space. Add a way to return buffers >>> synchronously via io_uring "register" syscall, which should serve >>> as a slow fallback path. >>> >>> For a full branch with all relevant dependencies see >>> https://github.com/isilence/linux.git zcrx/for-next >>> >>> [...] >> >> Applied, thanks! > > Leave these and other series out please. I sent them for > review, but it'll be easier to keep in a branch and rebase > it if necessary. I hoped tagging with zcrx-next would be > good enough of a sign. Alright, but then please make it clear when you are sending something out for merging. -- Jens Axboe