linux-ext4 - Re: [PATCH 2/6] resize2fs: Use blk64_t and location getters for free_gdp

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Message-ID: <20130909144136.GF6059@thunk.org>
Date:	Mon, 9 Sep 2013 10:41:36 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	Eric Sandeen <sandeen@...hat.com>, linux-ext4@...r.kernel.org
Subject: Re: [PATCH 2/6] resize2fs: Use blk64_t and location getters for
 free_gdp_blocks()

On Wed, Aug 28, 2013 at 05:43:57PM -0700, Darrick J. Wong wrote:
> free_gdp_blocks needs to be taught to use 64-bit fields and the appropriate
> getters, otherwise it'll truncate high block numbers (when, say, resizing a
> >16T fs) and mark the low numbered group descriptor blocks as free.  Yikes.
> 
> Reported-by: Eric Sandeen <sandeen@...hat.com>
> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>

Applied, thanks.

					- Ted
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