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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: <6425cd07c25dc_21f56920810@willemb.c.googlers.com.notmuch> References: <6425cd07c25dc_21f56920810@willemb.c.googlers.com.notmuch> <64259aca22046_21883920890@willemb.c.googlers.com.notmuch> <20230329141354.516864-1-dhowells@redhat.com> <20230329141354.516864-17-dhowells@redhat.com> <854811.1680189069@warthog.procyon.org.uk> To: Willem de Bruijn 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 Subject: Re: [RFC PATCH v2 16/48] ip, udp: Support MSG_SPLICE_PAGES MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1024851.1680205748.1@warthog.procyon.org.uk> Date: Thu, 30 Mar 2023 20:49:08 +0100 Message-ID: <1024852.1680205748@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: DCB3516000A X-Stat-Signature: pqg838ynbmexz14qnqmy47b7pdqddzhb X-HE-Tag: 1680205754-128238 X-HE-Meta: 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 mZDV51VM 9sndWbXA0KzkLc6eVtFTLh8ePCRdndSXLmIS5GFTEmpPhx/vHhha6+rImWwv10g9cSQTztETvWURskgW97HrMBUDO+ZRjpB1nOnwfkJNIpk8tpXJMXnNOa/ol57CuYBOwIoVpKiG9vHCLCNAOVes3+pzZn83mCa0xrhXg4GFy4UioVFMbFmuagav3Yiz4k/yrGWuiM3LwFmEsECUngI/IvtfOi+zsrGg1UAvSRPkRvDTIcb7vdtIYSXqY1h+777ibcGKrMBCwJPk+yP4+rKe43+pjKW9jYsI59UtgbPqO3lpO2kACn/Y+LfY2EljtO2XXKJt5FEBT/45HAfRTcuEilS7JANjFl2ZrT6Pjy9mJmmcKI5fbDBYt4hF8pA== 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: Willem de Bruijn wrote: > Yes exactly. I wasn't sure whether the inner loops required access to > too many function scope variables to pull this off. But seems like it > is doable. Great. The same helpers can be used for both ipv4 and ipv6 as it turns out. David