linux-kernel - Re: [RESEND][PATCH] lseek: remove i

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Date:	Thu, 25 Jun 2009 05:54:52 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Hisashi Hifumi <hifumi.hisashi@....ntt.co.jp>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>
Subject: Re: [RESEND][PATCH] lseek: remove i_mutex

On Thu, Jun 25, 2009 at 01:41:10PM +0900, Hisashi Hifumi wrote:
> Hi, 
> 
> Following patch removes i_mutex from generic_file_llseek.
> I think the reason of protecting lseek with i_mutex is just
> touching i_size (and f_pos) atomically.

NAK.  There's also a lot of fun with directories - readdir() vs. llseek().
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