From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f174.google.com (mail-il1-f174.google.com [209.85.166.174]) (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 E8ECB2144CA for ; Wed, 30 Oct 2024 16:56:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730307365; cv=none; b=FnuEmmHDITQQ/IHvGUKUzWpyrz974/SobexJ9Od0T8utcPt6BItRmzRk2eZfY1uHX1e4TJCJNfPeeCD1i/BnBULH/AbrC5HNOITMcufBX54Xs2SwEnwVZiDfMRcKmWPG2Rfz7FLQrTMpB9CjTMRGkZ1C1+T8t/6pn/9BhHbjm+s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730307365; c=relaxed/simple; bh=q6OcSUdq3KGcS46mXVpBifnYGIrv2MBBfm6AK+vhx3E=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=PadGP7im1X8hMfx9Dgx8b13WKKwKGLrKXalUi8D7BxM5P1tnMh89U52kQSMfb73M/pd3kiwNtT0Q/+cBXrRGZ2yzgCtKuNE9ovKApQH1nJFISR8DSb10VZG3B08XKqi/hg8n4XGk7VyMnmwpZZlX+LJbEW/vewV27f3QhEy+ais= 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=psNqtk1S; arc=none smtp.client-ip=209.85.166.174 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="psNqtk1S" Received: by mail-il1-f174.google.com with SMTP id e9e14a558f8ab-3a4e474983fso165315ab.1 for ; Wed, 30 Oct 2024 09:56:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1730307360; x=1730912160; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:from:to:cc:subject:date:message-id:reply-to; bh=91Yl99/OQNzIIBP+GwkP9Rod6/8HroJsq2xEwt5WbH0=; b=psNqtk1S7LeTYWAuZ9MQ7qv4WZQBl2Bc+XkfEUCSEF9nFxaGtiRB+hdZ8BdfW7scEg 8O/RueiyazEQqcFYxYO0H5nNDm7YxLBL0GbXk3c1dOCiQvymYiBrsbM5c12Cwn7Eha2f L5Iq7OzhU/6UzN4UNez28B1v0S5KElMq38za4SQmgstUAyvelZpIWBUqa1dwDKMzW44o 6jnExECNXX0bohNVT8gjClca9yodum01MedrLsrEy0jybDWosFezfTKZvLl+DWSa6Yq6 +VLRI9jZuKWe26rde+roOrCbD1JiF/knpBLuPkJ6Mudrg5sN70FK8PgH5gnKsadTLmJ/ VoDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730307360; x=1730912160; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=91Yl99/OQNzIIBP+GwkP9Rod6/8HroJsq2xEwt5WbH0=; b=AIDkYLYxIkQtDHGxM0RjoHiCPBtsrOzKOL0xBfnIUmHVvEESbbHXl66K75NmILHXri 0BsVbPjQ0v6Us/uYk91+fjRUmublWCNfz8D0yFDPxzZiCExuiTYZeNRG/pV+aZWC5ZQF epQXzl1XtFfiEg+3IDt1e1q17RqhK3SQR8FJZf1Mm9p2BavbiMLaM7x04t3KxmN2Uw9v kKZalKNbyw1mdlN0WQnxB0pZy/E4qoTD7hw6m6LxfycSPT2vlBS2XV7rxvvNH7cGetNY kRxM3XYdvuWK+gZZQPfClS3ztjfFdDzol/h4PkXB/ejXSS00NIpou0OUEgMn52XeCBRY 5+VQ== X-Gm-Message-State: AOJu0Ywc9mChdsoq52MANZ42aOjP9VyxajE0BdKFeA++R4OkPUlBKLrE tUoN707+zA9Sy846wYM0Epd831VMdICJD0humKNPOSAyqJ/mLTGUEVS1gRtw4sTNtUqCfV6dAJy gBr4= X-Google-Smtp-Source: AGHT+IErX4bqyGGZhf16ic0LODnLB04NHo3ir8/hxaIgPi3QQhNOo+QIr8z6wMEdMlmDpqXWS+DE4g== X-Received: by 2002:a05:6e02:1aa2:b0:3a0:a71b:75e5 with SMTP id e9e14a558f8ab-3a4ed295f6fmr163017095ab.7.1730307359538; Wed, 30 Oct 2024 09:55:59 -0700 (PDT) Received: from localhost.localdomain ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-4dc727505fdsm2980035173.120.2024.10.30.09.55.58 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Oct 2024 09:55:58 -0700 (PDT) From: Jens Axboe To: io-uring@vger.kernel.org Subject: [PATCHSET 0/2] Add support for cloning partial buffer sets Date: Wed, 30 Oct 2024 10:54:13 -0600 Message-ID: <20241030165556.64918-1-axboe@kernel.dk> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi, 6.12 added buffer cloning support, but it's an all-or-nothing kind of thing - if there's an existing buffer table in the destination ring, then nothing can be cloned to it. This adds support for cloning partial buffer sets, specifying a source/dest offset and the number of buffers to clone. And it allows cloning to replace existing nodes as well, specified with a separate flag. include/uapi/linux/io_uring.h | 8 +++-- io_uring/rsrc.c | 60 +++++++++++++++++++++++++++++------ 2 files changed, 56 insertions(+), 12 deletions(-) -- Jens Axboe