From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f179.google.com (mail-il1-f179.google.com [209.85.166.179]) (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 9C69816F0CF for ; Wed, 5 Feb 2025 16:17:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738772260; cv=none; b=J47mmUBTmzJm45h6ykyyEH4P6j8v7cSfOTm5zdgGEGVrZdeIbzOOgPdQZ7z2e6ujf+3Z2hYGHCIoHVPywWULzjkKVEkVfMOcMsWLZ4RoeDCmhgLOCLovAjEQJhvnph31tSXc+QMrd5usS9XlxXV2i22sP4KYd4cQJqemZyzwpJc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738772260; c=relaxed/simple; bh=W3MSlFjahOVIws0rzaiqoOjmeTf4lSvp/oe/xS+dCik=; h=From:To:In-Reply-To:References:Subject:Message-Id:Date: MIME-Version:Content-Type; b=my+DLOktGxWr+PaLyWDVUKOKdTkPFYfotWJtIjtt0VZrV8PAu0Y6O3dHFVUhSfSJ7SuwyUbp7/RgWhL9HsaRktrAs9bs1jEp7NdRzYzgYd0vekJlKs8wC5hKBoQ/CqKZ/iPwYMRVrAIzTvOYwBQ5BzXfD8uHUXLAuMhHEIXY4yU= 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=Yo4v88w3; arc=none smtp.client-ip=209.85.166.179 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="Yo4v88w3" Received: by mail-il1-f179.google.com with SMTP id e9e14a558f8ab-3ce87d31480so21468885ab.2 for ; Wed, 05 Feb 2025 08:17:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1738772255; x=1739377055; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:to:from:from:to:cc:subject:date:message-id :reply-to; bh=QA+8DliALI9Z2Spldgca9IGZZV/iEIBlyAMHDhodVoE=; b=Yo4v88w3MQedac74CJBaVwo2YnHhorNFmjUoocEbdgT0lDtnfULTmL8l475vsB/tHO Gu04FcOU7qzcP/B/nyGWGzF/+0AgR1/6GH/YKaWH3l+Kd7nLL/XG9T2faV/LimqAuH6r 1wa/BPtLN2MF+s4HRaM1KdhAGYnx2LhtIEAkNuJqvJ93MP5+7ztXXikVydFd0P2VPHii i6mcvZcovqjwnm+WV2ME+r12EyAEX3V3oGM5RTZ0uySCrDnu2L/eiclT0Y/5h5CdyGpo f4RS8WEDuLJSxpf4f7AKX3/Mson1iGt1iEbZ136F1ySQ/aaPHnpt3n3cMeq5mt7n2XmL pJkQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738772255; x=1739377055; h=content-transfer-encoding:mime-version:date:message-id:subject :references:in-reply-to:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=QA+8DliALI9Z2Spldgca9IGZZV/iEIBlyAMHDhodVoE=; b=a2lstqpiO+yHm5Bh9j1W7iJ1b4VrVjFP77H9mmucSqX7lPIsu1DvRCeeQs8Hj8/s2q 219ixpjauLelijqm8j6wBWjc8QWHpDJ61efuGLEvwhK3rgJh0B/ObCa3yGirxTxOz5dX SxC39wBN07VzxoCr3WncoEV5PFzPZYKgCTbusYcD3EI3QCSzAs6HxQaszs7t5vzxwdII nY2izEh9UPZWImPpw1BWlqI+IoHQ6a4SA3cjpWwGIoNoHm0pU1FyrycjoLyQHuasOk1W iduzuSbUt5iHL+sJ8Ge50NfdsG9Twd3POqR452/hl639Mz+Fnjcblp/lBRmTeJo4Y9zX xtuQ== X-Gm-Message-State: AOJu0YxLNBYr3k3a/KdqahK1xyQE+m24ShFFirzXsr/kzNqNk46fIxRt w0WWQCK95+FKoxfuME/U5PpTzsHeq/jLN+63hXUm9sn2RMKEMg+hWgVEOtpEPXgbIV4dZSJmyOS P X-Gm-Gg: ASbGncuNjdPQLYl4UsP0kifwWNwm+PAquyZltjIuxcWyNJfTHjHpI+5ErHl/Jfor+ou dHp8tjKTkkg7nOu13xDsqbwv36ykMRYF/1qXO0Z9SoREO5cSESvfBc02F75ftZlXdenTEXaydex wuzsB9zsuImnSaF5F4tcVQtdAUGqGBZRLJRWsNqdNmnvqJ9JOvBz91xwal1aVmDHL0wxvvJ35lP fozAEbl6tvyb5LJjvkEiwLbQ03Qwm6xWk232gRykm5SZkclfVxDYAI8cnWNpp7t40o7IGHAFHNk e6dSpg== X-Google-Smtp-Source: AGHT+IHHKAeSPgdDo4HS7KacPzGWhCV57cCjrLwR9AlcMPDI5iGyMSiqEiFKwRILSTOrIXheqHo+KA== X-Received: by 2002:a92:cda5:0:b0:3d0:4d38:4e5b with SMTP id e9e14a558f8ab-3d04f922983mr36060825ab.22.1738772255207; Wed, 05 Feb 2025 08:17:35 -0800 (PST) Received: from [127.0.0.1] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id e9e14a558f8ab-3d024b0a2f9sm23807825ab.42.2025.02.05.08.17.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Feb 2025 08:17:34 -0800 (PST) From: Jens Axboe To: io-uring@vger.kernel.org, Pavel Begunkov In-Reply-To: References: Subject: Re: [PATCH 0/8] legacy provided buffer deprecation / deoptimisation Message-Id: <173877225432.553753.6796684271469860272.b4-ty@kernel.dk> Date: Wed, 05 Feb 2025 09:17:34 -0700 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3-dev-14bd6 On Wed, 05 Feb 2025 11:36:41 +0000, Pavel Begunkov wrote: > Legacy provided buffers are slow and discouraged, users are encouraged > to use ring provided buffers instead. Clean up the legacy code, remove > caching and optimisations. The goal here it to make it simpler and less > of a burden to maintain. > > Pavel Begunkov (8): > io_uring/kbuf: remove legacy kbuf bulk allocation > io_uring/kbuf: remove legacy kbuf kmem cache > io_uring/kbuf: move locking into io_kbuf_drop() > io_uring/kbuf: simplify __io_put_kbuf > io_uring/kbuf: remove legacy kbuf caching > io_uring/kbuf: open code __io_put_kbuf() > io_uring/kbuf: introduce io_kbuf_drop_legacy() > io_uring/kbuf: uninline __io_put_kbufs > > [...] Applied, thanks! [1/8] io_uring/kbuf: remove legacy kbuf bulk allocation commit: 95865452e8b06974bb297891acbb7e5a6afc8d4c [2/8] io_uring/kbuf: remove legacy kbuf kmem cache commit: 6ad0e0db0d81c3e5ddf3b7ce84cb937590f724a3 [3/8] io_uring/kbuf: move locking into io_kbuf_drop() commit: 615da6b1d03b53efea22faaab3f1a3d21888ed72 [4/8] io_uring/kbuf: simplify __io_put_kbuf commit: a6fe909acef9535dc56327b1a872466f080be413 [5/8] io_uring/kbuf: remove legacy kbuf caching commit: 30205b4708dcd3f2823377ae55afb953a05a2672 [6/8] io_uring/kbuf: open code __io_put_kbuf() commit: ac6757c5a032c800f927cef1245b81a3b4fabbce [7/8] io_uring/kbuf: introduce io_kbuf_drop_legacy() commit: 3d692b5b37fc755eb35881c0f612ed6f00ac7b11 [8/8] io_uring/kbuf: uninline __io_put_kbufs commit: 641492f1733609b7abebf74ea9ebba6c29b84e79 Best regards, -- Jens Axboe