On Thu, 2014-07-24 at 18:19 +0100, Patrick McHardy wrote:

On 23. Juli 2014 23:53:15 GMT+01:00, Eric Dumazet [off-list ref] wrote:

quoted

From: Eric Dumazet <edumazet@google.com>

getsockopt() or setsockopt() sometimes returns -EINTR instead of
-ENOPROTOOPT, causing headaches to application developers.

This is because unsupported commands might go through nf_sockopt_find()
and this function returns -EINTR instead of -ERESTARTSYS if
a signal is pending.

I'd propose to simply use the non interruptable mutex functions. We
have many instances where this is really completely unnecessary.

I can take care of this (once my notebook has been repaired).

No problem I'll send a v2, thanks.