From: Alexei Starovoitov <ast@plumgrid.com>
To: Alex Gartrell <alexgartrell@gmail.com>,
Daniel Borkmann <daniel@iogearbox.net>
Cc: netdev <netdev@vger.kernel.org>
Subject: Re: Why return E2BIG from bpf map update?
Date: Tue, 21 Jul 2015 14:34:39 -0700 [thread overview]
Message-ID: <55AEBAEF.8090707@plumgrid.com> (raw)
In-Reply-To: <CALCkm3ck95Py=vPq+fWrcps=EVwtgFhDvGGyfoZ0AkLraaZJNA@mail.gmail.com>
On 7/21/15 3:13 AM, Alex Gartrell wrote:
> But, the EINVAL errno has similarly been
> abused to death
there was a thread few month ago trying to come up with
a generic solution for aliased error codes, but unfortunately
nothing concrete came out of it.
The one I liked sounded that the kernel may be able to extend
syscall interface to return a string together with errno,
but it's quite hard to do at present.
May be extensions to vdso data writable by kernel can
improve the situation.
prev parent reply other threads:[~2015-07-21 21:34 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-20 22:15 Why return E2BIG from bpf map update? Alex Gartrell
2015-07-20 22:24 ` Alexei Starovoitov
2015-07-21 9:40 ` Daniel Borkmann
2015-07-21 10:13 ` Alex Gartrell
2015-07-21 21:34 ` Alexei Starovoitov [this message]
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