linux-kernel - Re: epoll and shared fd's

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Message-ID: <19752.1204206788@turing-police.cc.vt.edu>
Date:	Thu, 28 Feb 2008 08:53:08 -0500
From:	Valdis.Kletnieks@...edu
To:	7eggert@....de
Cc:	Michael Kerrisk <mtk.manpages@...glemail.com>,
	Davide Libenzi <davidel@...ilserver.org>,
	Pierre Habouzit <madcoder@...ian.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Eric Dumazet <dada1@...mosbay.com>,
	Marc Lehmann <schmorp@...morp.de>,
	David Schwartz <davids@...master.com>
Subject: Re: epoll and shared fd's

On Tue, 26 Feb 2008 19:16:30 +0100, Bodo Eggert said:
> Michael Kerrisk <mtk.manpages@...glemail.com> wrote:

> >               file  handle  have  been  closed.  This means that
> >               even after a file descriptor that is  part  of  an
> >               epoll  set has been closed, events may be reported
> >               for that file descriptor if other file descriptors
> >               referring  to the same underlying file description
> >               remain open.

Is it worth making special mention of the case where a process gets events
for a FD that it has closed, because a parent or child process still has
an inherited copy of the FD still open?

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