From patchwork Thu Nov 14 17:38:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Begunkov X-Patchwork-Id: 13875520 Received: from mail-ej1-f51.google.com (mail-ej1-f51.google.com [209.85.218.51]) (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 898BA2AE8E for ; Thu, 14 Nov 2024 17:38:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731605888; cv=none; b=qnLodqm7nRLAH59Pw9Qb8SkFPKSHFimT176x0PFUMJnGeiVG60vJsog5WNDTWXpDznPDVA4Qg6AuubyG1gN/d1QMHDbe1C2KA7o/B0ZzJqd+/BLl6PSXF3Aez+Qrvf3S2nHTlCJsSSyEz3Ww3BXrv45cgGSY8N/G9Sx5b7KnKKM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731605888; c=relaxed/simple; bh=U5QF/x6b8+AVnGXyhRLblaAIRQzMWVGP0691lgarnBI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=IBOwo9wmuBUqRNq9uV8RMtKa+IQ5jQMGF+qHGC1RB+Z/As2g0mGcDfMDZPm6LfTUm/9qoQdAAWw2k+g3Ai/8ZEsHL3zQ47v+/m3SE+95Wuvtwkf1BrWvY25+yWFkbun2xdjZEQy7sCOXNJQ7jhplgYsAofS+GPjZdoeLlG92onk= 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=cm/TO0yn; arc=none smtp.client-ip=209.85.218.51 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="cm/TO0yn" Received: by mail-ej1-f51.google.com with SMTP id a640c23a62f3a-a9ed7d8c86cso177262066b.2 for ; Thu, 14 Nov 2024 09:38:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1731605885; x=1732210685; 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=Z4ypbSiI4hdag8CKI3LLUTCpl2wpJ0QYfEe4bYMO1/o=; b=cm/TO0yngZw+8+Tw0JUImZVJtK//ZAjULEa/45qpXnVjjacEil7qnN42pD1Rq58JTH iFJy9ty0H3dw88Htl17OBZsjQ1gorcpefs8DyoBFPyqYHe1VvytY75wjwCjAyT7R4WJR pR41GVRb4m50HcrxzPNqdyRXiISfAgqC4Mg3uokWduTVkGgP0TaCz13HZ4NwucFCFcGH JGuOp30SZDv6ey1u15EVQMKBuhP12nrq4DgLRhI3KiNkvi9gkdAEYHKvxFsgZs6gDX/e 0ETEU3DrV/h4zN/1+QpJjM8Fjw84A81lvrkVY+q3psGBsgv9vQqPIHrcKR8JNH0UvRjE xGMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731605885; x=1732210685; 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=Z4ypbSiI4hdag8CKI3LLUTCpl2wpJ0QYfEe4bYMO1/o=; b=Wyhu6cIZ3SN5eQdC6IiuNYTOckWwYZ4oACnSTdIlXRuyh2hNmbBw61GSwsSdErgoSw zSsmeBoDg/CXsM5aTYG3z5IvkvYw6R3hcPe+SYv58Ka1r1JX0BhZZh2b0/snj7blPtsi PXLaOMPqgcKy0H+sIFyQztBtstiqwRoA1WMhvqm2F1iUE8La7YfkF1W8LUy7LyG1dxrz L63oiPs6r0sNsu2LaAPeggGY8NoIuQQojMeDu/8E+GFM4E0eeAeopE4ppu7MQsPZuToz igepolnN5IbBfN3rCDDwrG0AkkjlNdOaC+enF24MAQfzwWNssG8buDSYaZNpUHVDf40N Pyjw== X-Gm-Message-State: AOJu0YxmTWJ9PgSUj83nh0siotIbabhg9VsKbnRVQU7LRL0MD8JOY9kn TLu/IZu67+ujZZBDJsN18E71uVzn+MBAfbn3+KecDMknDJKQI/xEbEhcLw== X-Google-Smtp-Source: AGHT+IHyLsh9xUzWoUfqtyYp/VxR0k1fJiao9xrG4VMoMWvuTKAyzm1paxJXGzXFzp30YPMOuXLTBg== X-Received: by 2002:a17:907:c2a:b0:a9e:c4df:e3c5 with SMTP id a640c23a62f3a-aa1f813b2fdmr725812366b.54.1731605884316; Thu, 14 Nov 2024 09:38:04 -0800 (PST) Received: from 127.0.0.1localhost ([163.114.131.193]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-aa20df56b31sm85799966b.72.2024.11.14.09.38.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Nov 2024 09:38:03 -0800 (PST) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [PATCH v2 0/6] regions, param pre-mapping and reg waits extension Date: Thu, 14 Nov 2024 17:38:30 +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 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 | 67 +++++++++++++++++++++++ io_uring/memmap.h | 14 +++++ io_uring/register.c | 97 ++++++++++++---------------------- io_uring/register.h | 1 - 7 files changed, 164 insertions(+), 90 deletions(-)