Re: inode values in file system driver

Andreas Schwab (schwab@suse.de)
Tue, 13 May 2003 16:56:56 +0200


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
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