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From: Al Viro <viro@ZenIV.linux.org.uk>
To: Casper.Dik@oracle.com
Cc: Alan Burlison <Alan.Burlison@oracle.com>,
	Eric Dumazet <eric.dumazet@gmail.com>,
	David Miller <davem@davemloft.net>,
	stephen@networkplumber.org, netdev@vger.kernel.org,
	dholland-tech@netbsd.org
Subject: Re: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)
Date: Fri, 23 Oct 2015 18:09:00 +0100	[thread overview]
Message-ID: <20151023170900.GX22011@ZenIV.linux.org.uk> (raw)
In-Reply-To: <201510221950.t9MJoAw0005835@room101.nl.oracle.com>

On Thu, Oct 22, 2015 at 09:50:10PM +0200, Casper.Dik@oracle.com wrote:
> >Sigh...  It completely fails to mention descriptor-passing.  Which
> >	a) is relevant to what "last close" means and
> >	b) had been there for nearly the third of a century.
> 
> Why is that different?  These clearly count as file descriptors.

To quote your own posting upthread (Message-ID:
<201510212033.t9LKX4G8007718@room101.nl.oracle.com>)

> Well, a file descriptor really only exists in the context of a process; 
> in-flight it is no longer a file descriptor as there process context with 
  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> a file descriptor table; so pointers to file descriptions are passed 
> around.

IMO it shows that the wording is anything but clear.  The only way to claim
that it's accurate is, indeed, to declare that the contents of in-flight
SCM_RIGHTS datagram should be counted as file descriptors and that's too
much of a stretch for the reasons you've pointed to.

  reply	other threads:[~2015-10-23 17:09 UTC|newest]

Thread overview: 138+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-19 16:59 Fw: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3) Stephen Hemminger
2015-10-19 23:33 ` Eric Dumazet
2015-10-20  1:12   ` Alan Burlison
2015-10-20  1:45     ` Eric Dumazet
2015-10-20  9:59       ` Alan Burlison
2015-10-20 11:24         ` David Miller
2015-10-20 11:39           ` Alan Burlison
2015-10-20 13:19         ` Fw: " Eric Dumazet
2015-10-20 13:45           ` Alan Burlison
2015-10-20 15:30             ` Eric Dumazet
2015-10-20 18:31               ` Alan Burlison
2015-10-20 18:42                 ` Eric Dumazet
2015-10-21 10:25                 ` David Laight
2015-10-21 10:49                   ` Alan Burlison
2015-10-21 11:28                     ` Eric Dumazet
2015-10-21 13:03                       ` Alan Burlison
2015-10-21 13:29                         ` Eric Dumazet
2015-10-21  3:49       ` Al Viro
2015-10-21 14:38         ` Alan Burlison
2015-10-21 15:30           ` David Miller
2015-10-21 16:04             ` Casper.Dik
2015-10-21 21:18               ` Eric Dumazet
2015-10-21 21:28                 ` Al Viro
2015-10-21 16:32           ` Fw: " Eric Dumazet
2015-10-21 18:51           ` Al Viro
2015-10-21 20:33             ` Casper.Dik
2015-10-22  4:21               ` Al Viro
2015-10-22 10:55                 ` Alan Burlison
2015-10-22 18:16                   ` Al Viro
2015-10-22 20:15                     ` Alan Burlison
2015-11-02 10:03               ` David Laight
2015-11-02 10:29                 ` Al Viro
2015-10-21 22:28             ` Alan Burlison
2015-10-22  1:29             ` David Miller
2015-10-22  4:17               ` Alan Burlison
2015-10-22  4:44                 ` Al Viro
2015-10-22  6:03                   ` Al Viro
2015-10-22  6:34                     ` Casper.Dik
2015-10-22 17:21                       ` Al Viro
2015-10-22 18:24                         ` Casper.Dik
2015-10-22 19:07                           ` Al Viro
2015-10-22 19:51                             ` Casper.Dik
2015-10-22 21:57                               ` Al Viro
2015-10-23  9:52                                 ` Casper.Dik
2015-10-23 13:02                                   ` Eric Dumazet
2015-10-23 13:20                                     ` Casper.Dik
2015-10-23 13:48                                       ` Eric Dumazet
2015-10-23 14:13                                       ` Eric Dumazet
2015-10-23 13:35                                     ` Alan Burlison
2015-10-23 14:21                                       ` Eric Dumazet
2015-10-23 15:46                                         ` Alan Burlison
2015-10-23 16:00                                           ` Eric Dumazet
2015-10-23 16:07                                             ` Alan Burlison
2015-10-23 16:19                                             ` Eric Dumazet
2015-10-23 16:40                                               ` Alan Burlison
2015-10-23 17:47                                                 ` Eric Dumazet
2015-10-23 17:59                                                   ` [PATCH net-next] af_unix: do not report POLLOUT on listeners Eric Dumazet
2015-10-25 13:45                                                     ` David Miller
2015-10-24  2:30                                   ` [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3) Al Viro
2015-10-27  9:08                                     ` Casper.Dik
2015-10-27 10:52                                       ` Alan Burlison
2015-10-27 12:01                                         ` Eric Dumazet
2015-10-27 12:27                                           ` Alan Burlison
2015-10-27 12:44                                             ` Eric Dumazet
2015-10-27 13:42                                         ` David Miller
2015-10-27 13:37                                           ` Alan Burlison
2015-10-27 13:59                                             ` David Miller
2015-10-27 14:13                                               ` Alan Burlison
2015-10-27 14:39                                                 ` David Miller
2015-10-27 14:39                                                   ` Alan Burlison
2015-10-27 15:04                                                     ` David Miller
2015-10-27 15:53                                                       ` Alan Burlison
2015-10-27 23:17                                         ` Al Viro
2015-10-28  0:13                                           ` Eric Dumazet
2015-10-28 12:35                                             ` Al Viro
2015-10-28 13:24                                               ` Eric Dumazet
2015-10-28 14:47                                                 ` Eric Dumazet
2015-10-28 21:13                                                   ` Al Viro
2015-10-28 21:44                                                     ` Eric Dumazet
2015-10-28 22:33                                                       ` Al Viro
2015-10-28 23:08                                                         ` Eric Dumazet
2015-10-29  0:15                                                           ` Al Viro
2015-10-29  3:29                                                             ` Eric Dumazet
2015-10-29  4:16                                                               ` Al Viro
2015-10-29 12:35                                                                 ` Eric Dumazet
2015-10-29 13:48                                                                   ` Eric Dumazet
2015-10-30 17:18                                                                   ` Linus Torvalds
2015-10-30 21:02                                                                     ` Al Viro
2015-10-30 21:23                                                                       ` Linus Torvalds
2015-10-30 21:50                                                                         ` Linus Torvalds
2015-10-30 22:33                                                                           ` Al Viro
2015-10-30 23:52                                                                             ` Linus Torvalds
2015-10-31  0:09                                                                               ` Al Viro
2015-10-31 15:59                                                                               ` Eric Dumazet
2015-10-31 19:34                                                                               ` Al Viro
2015-10-31 19:54                                                                                 ` Linus Torvalds
2015-10-31 20:29                                                                                   ` Al Viro
2015-11-02  0:24                                                                                     ` Al Viro
2015-11-02  0:59                                                                                       ` Linus Torvalds
2015-11-02  2:14                                                                                       ` Eric Dumazet
2015-11-02  6:22                                                                                         ` Al Viro
2015-10-31 20:45                                                                                   ` Eric Dumazet
2015-10-31 21:23                                                                                     ` Linus Torvalds
2015-10-31 21:51                                                                                       ` Al Viro
2015-10-31 22:34                                                                                       ` Eric Dumazet
2015-10-31  1:07                                                                           ` Eric Dumazet
2015-10-28 16:04                                           ` Alan Burlison
2015-10-29 14:58                                         ` David Holland
2015-10-29 15:18                                           ` Alan Burlison
2015-10-29 16:01                                             ` David Holland
2015-10-29 16:15                                               ` Alan Burlison
2015-10-29 17:07                                                 ` Al Viro
2015-10-29 17:12                                                   ` Alan Burlison
2015-10-30  1:54                                                     ` David Miller
2015-10-30  1:55                                                   ` David Miller
2015-10-30  5:44                                                 ` David Holland
2015-10-30 17:43                                           ` David Laight
2015-10-30 21:09                                             ` Al Viro
2015-11-04 15:54                                               ` David Laight
2015-11-04 16:27                                                 ` Al Viro
2015-11-06 15:07                                                   ` David Laight
2015-11-06 19:31                                                     ` Al Viro
2015-10-22  6:51                   ` Casper.Dik
2015-10-22 11:18                     ` Alan Burlison
2015-10-22 11:15                   ` Alan Burlison
2015-10-22  6:15                 ` Casper.Dik
2015-10-22 11:30                   ` Eric Dumazet
2015-10-22 11:58                     ` Alan Burlison
2015-10-22 12:10                       ` Eric Dumazet
2015-10-22 13:12                         ` David Miller
2015-10-22 13:14                         ` Alan Burlison
2015-10-22 17:05                           ` Al Viro
2015-10-22 17:39                             ` Alan Burlison
2015-10-22 18:56                               ` Al Viro
2015-10-22 19:50                                 ` Casper.Dik
2015-10-23 17:09                                   ` Al Viro [this message]
2015-10-23 18:30           ` Fw: " David Holland
2015-10-23 19:51             ` Al Viro

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