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From: Maneesh Soni <maneesh@in.ibm.com>
To: FabF <fabian.frederick@skynet.be>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: [OFFTOPIC] f_pos ?
Date: Tue, 6 Jul 2004 14:58:16 -0500	[thread overview]
Message-ID: <20040706195816.GB3097@in.ibm.com> (raw)
In-Reply-To: <1088968685.2429.1.camel@localhost.localdomain>

On Sun, Jul 04, 2004 at 07:31:29PM +0000, FabF wrote:
> Hi,
> 	
> 	I try to understand how readdir process works and I can't understand
> f_pos management :
> 
>         Having in mind things work that way :
> 
>         user : ls
>         glibc : 
>                 open (->sys_open)
>                 getdentries64 (->sys_getdentries64)
>                 
>         kernel:
>                 sys_getdentries64
>                 ->vfs_readdir
>                         ->ext2_readdir
> 
> At that point, I don't understand why ext2_readdir is playing with
> filp->f_pos .... It should be 0 ...Why does it care about offset ?
> 

I think it may not be 0 all the time. A seekdir() could change could change
the offset to non-zero.

Thanks
Maneesh

-- 
Maneesh Soni
Linux Technology Center, 
IBM Austin
email: maneesh@in.ibm.com
Phone: 1-512-838-1896 Fax: 
T/L : 6781896

  reply	other threads:[~2004-07-06 19:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-04 19:18 [OFFTOPIC] f_pos ? FabF
2004-07-06 19:58 ` Maneesh Soni [this message]
2004-07-06 20:38   ` [OFFTOPIC] f_pos ? [PATCH 2.6.7-mm6] ext2_readdir commenting FabF
2004-07-06 20:51   ` [OFFTOPIC] f_pos ? FabF

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