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 AFCA3180 for ; Fri, 30 Jun 2023 00:01:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1B16C433C8; Fri, 30 Jun 2023 00:01:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1688083317; bh=Bej09wYFcT6D4FI/gm1ZGuRayoSdiiH2baukOvRvHEQ=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=LWmFFlvh/aXLzdmV/dcJn2GkigvCiQc4jA7nQOHqgG2p9NVoIcuBPwtlHgVSDIK/+ P6tfAOINFIzPaS1CaW8XWgs/r6B6QCZJV0uCr1+EwSz450QpPBHiYM8ZYeinUqLrjP TiQQSKO7TvNHS4zAQCm0eMEsYBGHFik9pPojQBGLctgE0iSVu68gKlwsSqUEZvqwBy R+DNMVdyT3OyWCZQX9nkVqe15fOYjfFX9PiwIhu3tbUwqFoqmjEAzN5TxOIX9EjOL5 WQP6ONBI2NMuVu1siTtZGqMAnS2FpBpqCzpPPwqtoad0MWatYvMk+VYlhYrVIcHtr0 ZePiyxj0S2FAQ== Date: Thu, 29 Jun 2023 17:01:55 -0700 From: Jakub Kicinski To: David Howells Cc: netdev@vger.kernel.org, Matthew Wilcox , Dave Chinner , Matt Whitlock , Linus Torvalds , Jens Axboe , linux-fsdevel@kvack.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH 0/4] splice: Fix corruption in data spliced to pipe Message-ID: <20230629170155.175d71aa@kernel.org> In-Reply-To: <20230629155433.4170837-1-dhowells@redhat.com> References: <20230629155433.4170837-1-dhowells@redhat.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 29 Jun 2023 16:54:29 +0100 David Howells wrote: > I'm more inclined to adjust the documentation since the behaviour we > have has been that way since 2005, I think. +1 FWIW I think that networking always operated under the assumption that the pages may change. In TLS we require explicit opt-in from users that the pages they send will not get changed, if it could cause crypto errors (TLS_TX_ZEROCOPY_RO).