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From: Pavel Machek <pavel@suse.cz>
To: Kai Henningsen <kaih@khms.westfalen.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: VFS locking: f_pos thread-safe ?
Date: Thu, 19 Feb 2004 16:14:41 +0100	[thread overview]
Message-ID: <20040219151441.GD467@openzaurus.ucw.cz> (raw)
In-Reply-To: <92VRVYaHw-B@khms.westfalen.de>

Hi!

> POSIX says on <http://www.opengroup.org/onlinepubs/007904975/functions/ 
> read.html>:
> 
> [...]
> DESCRIPTION
> 
> The read() function shall attempt to read nbyte bytes from the file
> associated with the open file descriptor, fildes, into the buffer pointed
> to by buf. The behavior of multiple concurrent reads on the same pipe,
> FIFO, or terminal device is unspecified.

...which implies that concurrent reads on regular files are okay :-P.

				Pavel

-- 
64 bytes from 195.113.31.123: icmp_seq=28 ttl=51 time=448769.1 ms         


  reply	other threads:[~2004-02-23 13:23 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-06  9:09 VFS locking: f_pos thread-safe ? Matt
2004-02-06  9:16 ` Andrew Morton
2004-02-06  9:26   ` Matt
2004-02-06  9:35     ` Andrew Morton
2004-02-06 10:19       ` Matthias Urlichs
2004-02-06 11:18         ` viro
2004-02-06 18:59           ` Matthias Urlichs
2004-02-06 19:54             ` Werner Almesberger
2004-02-08 15:58             ` Kai Henningsen
2004-02-19 15:14               ` Pavel Machek [this message]
     [not found]         ` <20040206101941.4cd9c882.shemminger@osdl.org>
2004-02-06 18:47           ` Matthias Urlichs
2004-02-06 13:50       ` Werner Almesberger
2004-02-06 13:56         ` viro
2004-02-06 14:24           ` Werner Almesberger
  -- strict thread matches above, loose matches on Subject: below --
2004-02-06  7:12 Werner Almesberger
2004-02-06  7:55 ` Andrew Morton
2004-02-06 18:37 ` Joel Becker
2004-02-06 19:05   ` Matthias Urlichs
2004-02-07  1:35     ` Joel Becker
2004-02-06 20:09   ` Werner Almesberger
2004-02-06 20:56     ` Valdis.Kletnieks
2004-02-07  0:55       ` Werner Almesberger
2004-02-06 20:54 ` Andries Brouwer
2004-02-07 23:45   ` Werner Almesberger

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