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Date:	Mon, 23 Apr 2012 17:42:02 -0500
From:	Andreas Dilger <>
To:	Eric Sandeen <>
Cc:	Bernd Schubert <>,,,, Fan Yong <>,
Subject: Re: [PATCH 5 2/4] Return 32/64-bit dir name hash according to usage type

On 2012-04-23, at 5:23 PM, Eric Sandeen wrote:
> I'm curious about the above as well as:
>        case SEEK_END:
>                if (unlikely(offset > 0))
>                        goto out_err; /* not supported for directories */
> The previous .llseek handler, and the generic handler for other filesystems, allow seeking past the end of the dir AFAICT.  (not sure why you'd want to, but I don't see that you'd get an error back).
> Is there a reason to uniquely exclude it in ext4?  Does that line up with POSIX?

I don't know what the origin of this was...  I don't think there is a real reason for it except that it doesn't make any sense to do so.

Cheers, Andreas
Andreas Dilger                       Whamcloud, Inc.
Principal Lustre Engineer  

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