From: Davide Libenzi <davidel@xmailserver.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Nathan Lynch <ntl@pobox.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
stable@kernel.org
Subject: Re: [PATCH] signalfd: fill in ssi_int for posix timers and message queues
Date: Sat, 24 Jul 2010 21:09:21 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.00.1007242104060.1470@davide-laptop> (raw)
In-Reply-To: <20100720211018.e586c7ce.akpm@linux-foundation.org>
On Tue, 20 Jul 2010, Andrew Morton wrote:
> It's not a matter of a current application depending on current
> behaviour! The problem is that an application written in 2018 which
> depends on the _new_ behaviour will not work on 2.6.34.
>
> It wouldn't be the worst thing we've ever done to our long-suffering
> users, but it is a permanent cost of having screwed things up :(
While I agree it is a problem with the kernel compatibility handling,
every time we add new features to an existing interface we end up in
similar scenarios.
Nowadays a "require kernel >= X.Y.Z" is all but an uncommon case for
userspace code.
- Davide
prev parent reply other threads:[~2010-07-25 4:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-03 0:38 Nathan Lynch
2010-07-03 19:09 ` Davide Libenzi
2010-07-05 12:22 ` Nathan Lynch
2010-07-05 18:23 ` Davide Libenzi
2010-07-20 22:42 ` Andrew Morton
2010-07-21 3:44 ` Nathan Lynch
2010-07-21 4:10 ` Andrew Morton
2010-07-21 17:39 ` Nathan Lynch
2010-07-25 4:09 ` Davide Libenzi [this message]
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