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Subject: Re: svn commit: r287780 - in head: share/man/man9 sys/kern sys/sys
To: Davide Italiano <davide@freebsd.org>
References: <201509141052.t8EAqRWf008293@repo.freebsd.org>
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Cc: Gleb Smirnoff <glebius@freebsd.org>,
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 "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>,
 "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>,
 Julien Charbon <jch@FreeBSD.org>, Randall Stewart <rrs@freebsd.org>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <55FD461A.4030101@selasky.org>
Date: Sat, 19 Sep 2015 13:25:14 +0200
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On 09/19/15 10:55, Hans Petter Selasky wrote:
> It currently has one critical client, and that is destruction of TCP
> connections.

In general I see the added function extremely useful when creating 
protocols which use callouts, which destruct their "PCBs" from interrupt 
context, that you don't need a sleeping context to destruct "PCBs" in 
general. Further with non-MPSAFE callouts, tracking the return value of 
callout_reset_xxx() and callout_stop_xxx() is not an option. 
callout_reset_async() is a requirement for non-blocking and sane callout 
operation.

We need this functionality in the callout subsystem simply! It is a 
failure not to have it.

--HPS

Minor typo:
s/rss/rrs