linux-kernel - Re: [PATCH 2/2] ext2: Avoid rec_len overflow with 64KB block size

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Message-ID: <20071008130232.GD8091@duck.suse.cz>
Date:	Mon, 8 Oct 2007 15:02:32 +0200
From:	Jan Kara <jack@...e.cz>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	cmm@...ibm.com, linux-ext4@...r.kernel.org,
	linux-kernel@...r.kernel.org, sho@...s.nec.co.jp, jack@...e.cz,
	clameter@....com
Subject: Re: [PATCH 2/2] ext2: Avoid rec_len overflow with 64KB block size

On Thu 04-10-07 13:12:07, Andrew Morton wrote:
> On Mon, 01 Oct 2007 17:35:46 -0700
> Mingming Cao <cmm@...ibm.com> wrote:
> 
> > ext2: Avoid rec_len overflow with 64KB block size
> > 
> > From: Jan Kara <jack@...e.cz>
> > 
> > With 64KB blocksize, a directory entry can have size 64KB which does not fit
> > into 16 bits we have for entry lenght. So we store 0xffff instead and convert
> > value when read from / written to disk.
> 
> This patch clashes in non-trivial ways with
> ext2-convert-to-new-aops-fix.patch and perhaps other things which are
> already queued for 2.6.24 inclusion, so I'll need to ask for an updated
> patch, please.
> 
> Also, I'm planing on merging the ext2 reservations code into 2.6.24, so if
> we're aiming for complete support of 64k blocksize in 2.6.24's ext2,
> additional testing and checking will be needed.
  OK, I'll fixup those rejects and send a new patch.

									Honza
-- 
Jan Kara <jack@...e.cz>
SUSE Labs, CR
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