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From: Andreas Schwab <schwab@suse.de>
To: Nikita Danilov <Nikita@Namesys.COM>
Cc: Erik Mouw <J.A.K.Mouw@its.tudelft.nl>,
	Adrian McMenamin <adrian@mcmen.demon.co.uk>,
	linux-kernel@vger.kernel.org
Subject: Re: inode values in file system driver
Date: Tue, 13 May 2003 16:56:56 +0200	[thread overview]
Message-ID: <jeptmmgaiv.fsf@sykes.suse.de> (raw)
In-Reply-To: <16065.1422.44816.110091@laputa.namesys.com> (Nikita Danilov's message of "Tue, 13 May 2003 18:47:42 +0400")

Nikita Danilov <Nikita@Namesys.COM> writes:

|> Andreas Schwab writes:
|>  > Erik Mouw <J.A.K.Mouw@its.tudelft.nl> writes:
|>  > 
|>  > |> On Sat, May 10, 2003 at 09:18:20PM +0100, Adrian McMenamin wrote:
|>  > |> > Am I allowed to assign the value 0 to an inode in a file system driver? I seem 
|>  > |> > to be having problems with a file that is being assigned this inode value 
|>  > |> > (its a FAT based filesystem so the inode values are totally artificial).
|>  > |> 
|>  > |> Yes, you are. However, glibc thinks that inode 0 is special and won't
|>  > |> show it.
|>  > 
|>  > BS. This has nothing at all to do with glibc.
|> 
|> from glibc-2.2.4/sysdeps/unix/readdir.c:
|> 
|>       /* Skip deleted files.  */
|>     } while (dp->d_ino == 0);
|> 
|> In other words, readdir(3) will not return dirent for inode with ino 0.

I stand corrected.  I was thinking of getdirentries, which does not have
this problem.  But this is traditional Unix behaviour.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

  reply	other threads:[~2003-05-13 14:44 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-10 20:18 inode values in file system driver Adrian McMenamin
2003-05-13 13:51 ` Erik Mouw
2003-05-13 14:33   ` Andreas Schwab
2003-05-13 14:47     ` Nikita Danilov
2003-05-13 14:56       ` Andreas Schwab [this message]
2003-05-13 18:54         ` Adrian McMenamin
2003-05-14 18:31         ` Adrian McMenamin

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