From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8CCB51E1DF0; Mon, 14 Jul 2025 15:21:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752506472; cv=none; b=cGe/j/0JNQbU1JWgc4O2fv/hLIAQsqFi3gnBhgl83VeJOhTNXyoijyQzWjw8y0uTVo9UZgAA4eTWpY6ycdeRx+C0nSl6rR80p7GF+xUImtTVBjh+8nO+eKCOgPXVZfIDW0ItLw6qAfAVAkvD19D8ojMpI8erCPWlQUGLkY9LRjc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752506472; c=relaxed/simple; bh=EXw+4q6ryjNblxNUNSKpxNGIL/z6m/pmY7l+XtJzUoQ=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=o84Hu9h4wRC0sEc94QkAZeuZTyqJEYVgnQK6Ud9NFmkV4IEDDuInfW5T53z7FKtrZHJJDcjoVotFq75dHTWV8K6wnWW8QmZKWUd2174ODi1h3ftNy+PhjRh57II0H9pfimDS/ImItPrYLS4qNQpjbp06U5UA0CveLVcQHpqnIy8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EZzpjDQy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EZzpjDQy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BB7C2C4CEED; Mon, 14 Jul 2025 15:21:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752506472; bh=EXw+4q6ryjNblxNUNSKpxNGIL/z6m/pmY7l+XtJzUoQ=; h=From:To:Cc:Subject:Date:From; b=EZzpjDQyqbiy4i0c5Y4vl+xULGF9BFsypL/omCv+FDXSmzC3ZIOk4/Skqj9rNLd/4 h52eQj2ckCuSIt1/TSNUZcynZIPeD4W7eF+1N4hoBSKTaRxheG28Z0RkZMruxLuc9Y jRwB2xeS7Np9o5XmNN6KSf1t6LAhcdArPX6XRHsQkblxrWKidWuiF5rF5fu8hi0TVu oh3lpyGNSC6rhF0RlHNKKc/ZwChB1uV7275mXUHwnvzUoBKvxtPgTvPzHkj7wDx21K FO3c+dNIr7/r9iLVRPgk0qlVpT6xRng9BlOZkFcj+MfPL6nzVIri3qTu9R3u2ehnyg f59s+herVBlfg== From: Will Deacon To: linux-kernel@vger.kernel.org Cc: Will Deacon , Keir Fraser , Steven Moreland , Frederick Mayle , Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , =?UTF-8?q?Eugenio=20P=C3=A9rez?= , netdev@vger.kernel.org, virtualization@lists.linux.dev Subject: [PATCH v3 0/9] vsock/virtio: SKB allocation improvements Date: Mon, 14 Jul 2025 16:20:54 +0100 Message-Id: <20250714152103.6949-1-will@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi folks, Here is version three of the patches I previously posted here: v1: https://lore.kernel.org/r/20250625131543.5155-1-will@kernel.org v2: https://lore.kernel.org/r/20250701164507.14883-1-will@kernel.org Changes since v2 include: * Pass payload length as a parameter to virtio_vsock_skb_put() * Reinstate VIRTIO_VSOCK_DEFAULT_RX_BUF_SIZE based on a 4KiB total allocation size * Split movement of bounds check into a separate patch Thanks again to Stefano for all the review feedback so far. Cheers, Will Cc: Keir Fraser Cc: Steven Moreland Cc: Frederick Mayle Cc: Stefan Hajnoczi Cc: Stefano Garzarella Cc: "Michael S. Tsirkin" Cc: Jason Wang Cc: "Eugenio Pérez" Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: virtualization@lists.linux.dev --->8 Will Deacon (9): vhost/vsock: Avoid allocating arbitrarily-sized SKBs vsock/virtio: Validate length in packet header before skb_put() vsock/virtio: Move length check to callers of virtio_vsock_skb_rx_put() vsock/virtio: Resize receive buffers so that each SKB fits in a 4K page vsock/virtio: Rename virtio_vsock_alloc_skb() vsock/virtio: Move SKB allocation lower-bound check to callers vhost/vsock: Allocate nonlinear SKBs for handling large receive buffers vsock/virtio: Rename virtio_vsock_skb_rx_put() vsock/virtio: Allocate nonlinear SKBs for handling large transmit buffers drivers/vhost/vsock.c | 15 ++++---- include/linux/virtio_vsock.h | 46 +++++++++++++++++++------ net/vmw_vsock/virtio_transport.c | 20 ++++++++--- net/vmw_vsock/virtio_transport_common.c | 3 +- 4 files changed, 60 insertions(+), 24 deletions(-) -- 2.50.0.727.gbf7dc18ff4-goog