From patchwork Fri Nov 15 16:54:37 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Begunkov X-Patchwork-Id: 13876637 Received: from mail-wr1-f52.google.com (mail-wr1-f52.google.com [209.85.221.52]) (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 6A46C762E0 for ; Fri, 15 Nov 2024 16:53:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.52 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731689641; cv=none; b=P6klgoQpkzod8LGgI9+4KpgLejLWmCDxKa98oK1ea3Snt52yj3bXx47SGuzz2V1fjLQszTiwRZZXBCS6AhsEUXHO/0yR+SZJcGgT3WILmtchkn73z6w1bkSgfUIi6QUxlh7EJ7fyz3Vls8ZDJlPpG1aUKypt3hHMh2K+xFwDYxQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731689641; c=relaxed/simple; bh=C2x1YUFhAH3Xa2rU5GM+rPcmhVttfxJ+qupdaEyvvW0=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=UAH3kwsFRkMNuBiWvat4bfGkHZHR5CiMqURQhog///XwR7GVkmgY1Enh96/ys+WhJDvMpsop8VvMFRC3Y06GCoU6UzmR8mkYCibNjZIXuADx6sg2LPWJZ6CI+py0sOWNZwTYoNny88HJ46pHdJK/QvnXBOqsFmT3vTatL5m6yuI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=QVowQ1ll; arc=none smtp.client-ip=209.85.221.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="QVowQ1ll" Received: by mail-wr1-f52.google.com with SMTP id ffacd0b85a97d-38222245a86so1031464f8f.1 for ; Fri, 15 Nov 2024 08:53:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1731689637; x=1732294437; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=YSEGn2aHARabFs7/DWQ9H+ZcokKqADHeSFNYQl1I4Ok=; b=QVowQ1llTUHcoZ1yzqVSD00F/WfPbTlvsN42v5tgQQRFxrzzsNm7imMVRz/Lga3hp5 w1epTS9yosLFMzkBpdscs3Yo4kQoVx+UYnazkSSYlPi4SlrnNn8tsr/rlMMiZNswqs7I sgLtJr+/lZ3SVTz+B27R0JmJxNKoutD0scwIk1bDeUhHeF2PU6jmAgL8Ts5y+F0aa2ZH XOh/YqgtlgKQBLUAP2Miyx0U3PwAMJhCFfPEnYqMMguwnpYwVsNNXrkgnYhMMyEcdgt0 Me78rDAqroiUzsG97qQJ03EA4uS/SP+jIpdmxxJo3wYO9Ci32CW+BaBCCbq8ItxnOogB niyQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731689637; x=1732294437; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YSEGn2aHARabFs7/DWQ9H+ZcokKqADHeSFNYQl1I4Ok=; b=WK7kgClVLsqqp1CEBoYkbZZRefBrCdUbLHxxaPa8/hhJqUR5bxsX/JJfYxSGX8Buwl k7xyFuRWtebuVBh0QNRNjUw+dCL0J8e99WE80yFTw7T43qUB3n5T0wMIfK7ja31w+Au0 iGvRj+4etOMdNJglhxwJ4/Usc/HzcGGFxDpMk2dV8TmBCPeRXGUy4iip9fM2rym3fZW9 gO257PA28Kl/IVU7NJdmarvxA1bIDwlfunDh0agD/1ZKNi2pA04LXabKW853fqU8AJJB cbJAvxG7Cu7CR0UBdTS0mimD4zsBWEetPbe8/1kAXYA4FBs32cusTVkHhIacvLoKi3rK 1z4g== X-Gm-Message-State: AOJu0Yzdj4qa5z/khf45g3ELfcCRVSFlzm2RFRFWMRpXOtdzgUhdaBw1 lLE5UGA3vtzVrnyXcjHK+HSHi4taibCSGyVfq6zQTD1I3zwf2KgOrxWp/w== X-Google-Smtp-Source: AGHT+IFuQ8EOsMT0jfouUXpLJDnyuGjRsbPGPrRujb5jgZnf9y1/vzO3sUhB7qmMAfNBEZ49XEHlXg== X-Received: by 2002:a05:6000:4915:b0:374:c92e:f6b1 with SMTP id ffacd0b85a97d-38225a047bamr2620900f8f.23.1731689636409; Fri, 15 Nov 2024 08:53:56 -0800 (PST) Received: from 127.0.0.1localhost ([148.252.132.111]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3821ae2f651sm5011895f8f.87.2024.11.15.08.53.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Nov 2024 08:53:56 -0800 (PST) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [PATCH v3 0/6] regions, param pre-mapping and reg waits extension Date: Fri, 15 Nov 2024 16:54:37 +0000 Message-ID: X-Mailer: git-send-email 2.46.0 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 A bit late but first we need a better and more generic API for ring/memory/region registration (see Patch 4), and it changes the API extending registered waits to be a generic parameter passing mechanism. That will be useful in the future to implement a more flexible rings creation, especially when we want to share same huge page / mapping. Patch 6 uses it for registered wait arguments, and it can also be used to optimise parameter passing for normal io_uring requests. A dirty liburing branch with tests: https://github.com/isilence/liburing/tree/io-uring-region-test v3: fix page array memleak (Patch 4) v2: cleaned up namings and commit messages moved all EXT_ARG_REG related bits Patch 5 -> 6 added alignment checks (Patch 6) Pavel Begunkov (6): io_uring: fortify io_pin_pages with a warning io_uring: disable ENTER_EXT_ARG_REG for IOPOLL io_uring: temporarily disable registered waits io_uring: introduce concept of memory regions io_uring: add memory region registration io_uring: restore back registered wait arguments include/linux/io_uring_types.h | 20 +++---- include/uapi/linux/io_uring.h | 28 +++++++++- io_uring/io_uring.c | 27 +++++----- io_uring/memmap.c | 69 ++++++++++++++++++++++++ io_uring/memmap.h | 14 +++++ io_uring/register.c | 97 ++++++++++++---------------------- io_uring/register.h | 1 - 7 files changed, 166 insertions(+), 90 deletions(-)