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From: Bryan Henderson <hbryan@us.ibm.com>
To: linuxram@us.ibm.com
Cc: 7eggert@gmx.de, ericvh@gmail.com, hch@infradead.org,
	jamie@shareable.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, Miklos Szeredi <miklos@szeredi.hu>,
	smfrench@austin.rr.com
Subject: Re: [RCF] [PATCH] unprivileged mount/umount
Date: Fri, 13 May 2005 13:56:06 -0700	[thread overview]
Message-ID: <OFEFDF2D93.56922D33-ON88257000.0072463B-88257000.00730C46@us.ibm.com> (raw)
In-Reply-To: <1115946620.6248.299.camel@localhost>

>Sorry if I am saying something dumb here.
>Correct me.  When a file descriptor is sent from one process to other,

This confusion, incidentally, is brought to you by the ambiguous use of 
the term "file descriptor."  In classic Unix, the "file descriptor" is the 
integer that open() returns.  It's an improper use of the term 
"descriptor," as this value does not describe but identifies.  But in the 
SCM_RIGHTS context, the term "file descriptor" is used to refer to a 
handle for a file image.  While it's true that a file descriptor goes in 
one end of the pipe and a (generally different) file descriptor comes out 
the other end, what's being passed is a handle for a file image (aka open 
instance).

--
Bryan Henderson                          IBM Almaden Research Center
San Jose CA                              Filesystems


  parent reply	other threads:[~2005-05-13 21:00 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <406SQ-5P9-5@gated-at.bofh.it>
     [not found] ` <40rNB-6p8-3@gated-at.bofh.it>
     [not found]   ` <40t37-7ol-5@gated-at.bofh.it>
     [not found]     ` <42VeB-8hG-3@gated-at.bofh.it>
     [not found]       ` <42WNo-1eJ-17@gated-at.bofh.it>
2005-05-11 16:41         ` [RCF] [PATCH] unprivileged mount/umount Bodo Eggert <harvested.in.lkml@posting.7eggert.dyndns.org>
2005-05-11 17:07           ` Jamie Lokier
2005-05-11 18:49             ` Miklos Szeredi
2005-05-11 19:05               ` serue
2005-05-11 19:46                 ` Bodo Eggert
2005-05-11 20:40                   ` Miklos Szeredi
2005-05-11 21:11                 ` Jamie Lokier
2005-05-12  3:05                   ` serue
2005-05-11 19:35               ` Ram
2005-05-11 20:31                 ` Miklos Szeredi
2005-05-11 21:28                 ` Jamie Lokier
2005-05-11 22:42                   ` Ram
2005-05-11 22:58                     ` Eric Van Hensbergen
2005-05-12  1:02                       ` Jamie Lokier
2005-05-12  2:18                         ` Eric Van Hensbergen
2005-05-12  6:45                           ` Jamie Lokier
2005-05-12 13:23                             ` Eric Van Hensbergen
2005-05-12 13:47                               ` serue
2005-05-12 15:16                               ` Jamie Lokier
2005-05-12 12:51                                 ` serue
2005-05-12 18:51                                 ` Miklos Szeredi
2005-05-12 19:56                                   ` Jamie Lokier
2005-05-13  8:55                                     ` Miklos Szeredi
2005-05-13  1:10                                   ` Ram
2005-05-13  6:06                                     ` Miklos Szeredi
2005-05-13  7:25                                     ` Ram
2005-05-13  8:59                                       ` Ram
2005-05-13  9:10                                         ` Miklos Szeredi
2005-05-13 16:53                                           ` Ram
2005-05-13 17:14                                             ` Miklos Szeredi
2005-05-13 18:44                                             ` Alan Cox
2005-05-13 20:56                                     ` Bryan Henderson [this message]
2005-05-12  0:59                     ` Jamie Lokier
2005-05-13  6:41                       ` Ram
2005-05-11 21:09               ` Jamie Lokier
2005-05-11 21:20                 ` Miklos Szeredi
2005-05-11 21:32                   ` Jamie Lokier
2005-05-11 19:32             ` Bodo Eggert
2005-05-11 21:23               ` Jamie Lokier
2005-05-11 21:34                 ` Miklos Szeredi
2005-05-11 21:36                   ` Jamie Lokier
2005-05-12  3:08                     ` serue
2005-05-03 14:31 Miklos Szeredi
2005-05-03 17:30 ` Bill Davidsen
2005-05-04 13:08 ` Eric Van Hensbergen
2005-05-04 14:21   ` Miklos Szeredi
2005-05-04 14:51     ` Eric Van Hensbergen
2005-05-04 15:21       ` Miklos Szeredi
2005-05-11  8:51     ` Christoph Hellwig
2005-05-11 10:31       ` Miklos Szeredi
2005-05-12 21:08         ` Bryan Henderson
2005-05-13  5:47           ` Miklos Szeredi
2005-05-13  7:19             ` Jan Hudec
2005-05-13  8:33               ` Miklos Szeredi
2005-05-13 23:09                 ` Bryan Henderson
2005-05-14  6:58                   ` Miklos Szeredi
2005-05-16 18:35                     ` Bryan Henderson
2005-05-14 11:49                   ` Jamie Lokier
2005-05-04 13:47 ` Martin Waitz
2005-05-04 14:34   ` Miklos Szeredi
2005-05-11  8:53   ` Christoph Hellwig
2005-05-11  8:48 ` Christoph Hellwig
2005-05-11 10:20   ` Miklos Szeredi
2005-05-16  9:34     ` Christoph Hellwig

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