netdev - Re: [PATCH v2] sock: allow reading and changing sk

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Message-ID: <20210803054203.4f1eb9a9@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Tue, 3 Aug 2021 05:42:03 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Pavel Tikhomirov <ptikhomirov@...tuozzo.com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        Arnd Bergmann <arnd@...db.de>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Florian Westphal <fw@...len.de>, linux-kernel@...r.kernel.org,
        linux-alpha@...r.kernel.org, linux-mips@...r.kernel.org,
        linux-parisc@...r.kernel.org, sparclinux@...r.kernel.org,
        linux-arch@...r.kernel.org, Andrei Vagin <avagin@...il.com>
Subject: Re: [PATCH v2] sock: allow reading and changing sk_userlocks with
 setsockopt

On Tue, 3 Aug 2021 14:04:39 +0300 Pavel Tikhomirov wrote:
> > Just to double check - is the expectation that the value returned is
> > completely opaque to the user space? The defines in question are not
> > part of uAPI.  
> 
> Sorry, didn't though about it initially. For criu we don't care about 
> the actual bits we restore same what we've dumped. Buf if some real 
> users would like to use this interface to restore default autoadjustment 
> on their sockets we should probably export SOCK_SNDBUF_LOCK and 
> SOCK_RCVBUF_LOCK to uAPI.

Just to be sure - please mention this in the commit message.