linux-kernel - Re: get rid of the address_space override in setsockopt

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Date:   Wed, 22 Jul 2020 09:56:57 +0200
From:   Christoph Hellwig <hch@....de>
To:     Alexei Starovoitov <alexei.starovoitov@...il.com>
Cc:     Christoph Hellwig <hch@....de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Eric Dumazet <edumazet@...gle.com>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        netfilter-devel@...r.kernel.org, coreteam@...filter.org,
        linux-sctp@...r.kernel.org, linux-hams@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, bridge@...ts.linux-foundation.org,
        linux-can@...r.kernel.org, dccp@...r.kernel.org,
        linux-decnet-user@...ts.sourceforge.net,
        linux-wpan@...r.kernel.org, linux-s390@...r.kernel.org,
        mptcp@...ts.01.org, lvs-devel@...r.kernel.org,
        rds-devel@....oracle.com, linux-afs@...ts.infradead.org,
        tipc-discussion@...ts.sourceforge.net, linux-x25@...r.kernel.org
Subject: Re: get rid of the address_space override in setsockopt

On Mon, Jul 20, 2020 at 01:47:56PM -0700, Alexei Starovoitov wrote:
> > a kernel pointer.  This is something that works for most common sockopts
> > (and is something that the ePBF support relies on), but unfortunately
> > in various corner cases we either don't use the passed in length, or in
> > one case actually copy data back from setsockopt, so we unfortunately
> > can't just always do the copy in the highlevel code, which would have
> > been much nicer.
> 
> could you rebase on bpf-next tree and we can route it this way then?
> we'll also test the whole thing before applying.

The bpf-next tree is missing all my previous setsockopt cleanups, so
there series won't apply.