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Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <7f7947d6-2a03-688b-dc5e-3887553f0106@redhat.com> References: <7f7947d6-2a03-688b-dc5e-3887553f0106@redhat.com> <20230329141354.516864-1-dhowells@redhat.com> <20230329141354.516864-38-dhowells@redhat.com> To: Xiubo Li Cc: dhowells@redhat.com, Matthew Wilcox , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Al Viro , Christoph Hellwig , Jens Axboe , Jeff Layton , Christian Brauner , Chuck Lever III , Linus Torvalds , netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Ilya Dryomov , ceph-devel@vger.kernel.org Subject: Re: [RFC PATCH v2 37/48] ceph: Use sendmsg(MSG_SPLICE_PAGES) rather than sendpage() MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <709551.1680158901.1@warthog.procyon.org.uk> Date: Thu, 30 Mar 2023 07:48:21 +0100 Message-ID: <709552.1680158901@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 8C652A000F X-Rspam-User: X-Stat-Signature: brgizsn9g5dqhb6q57hu7xckfyi5sxz5 X-HE-Tag: 1680158913-938883 X-HE-Meta: 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 jv12d0mn e8jZSWtaWIurp+MCas/9DiAtuErT8EbkEOaE7knwqyK8L0DuB8Sdw9Hegf46Kc0R0ApkWbi8BTlb8bBWakdeMmcnkFzR2GDDGz/AupC8kYJNNfja0vlQGHv8752vWekpm+6ZJZOfWnw/d4yW5iXMjR1VBzCNOd3HAR4dr8dxCfajhgAkWFMkap8xigR7DkAi6HSD00Apb+rsrO5cioHNHAsQAoPZ/BtGg1+83GEkU0Ya8jH/ZjwFf66Mb1Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Xiubo Li wrote: > BTW, will this two patch depend on the others in this patch series ? Yes. You'll need patches that affect TCP at least so that TCP supports MSG_SPLICE_PAGES, so 04-08 and perhaps 09. It's also on top of the patches that remove ITER_PIPE on my iov-extract branch, but I don't think that should affect you. David