linux-ext4 - Re: [PATCH 27/47] resize2fs: don't interpret bitmap shift while crossing flexbg as raid stride

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Message-ID: <20141215021108.GC17575@thunk.org>
Date:	Sun, 14 Dec 2014 21:11:08 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	"Darrick J. Wong" <darrick.wong@...cle.com>
Cc:	linux-ext4@...r.kernel.org, TR Reardon <thomas_reardon@...mail.com>
Subject: Re: [PATCH 27/47] resize2fs: don't interpret bitmap shift while
 crossing flexbg as raid stride

On Fri, Nov 07, 2014 at 01:53:41PM -0800, Darrick J. Wong wrote:
> resize2fs tries to infer the RAID stride by observing differences between the
> locations of adjacent block groups' block and inode bitmaps within the block
> group.  If the two block groups being compared belong to different flexbgs,
> however, it'll be fooled by the large offset into thinking that the FS has an
> abnormally large RAID stride.
> 
> Therefore, teach it not to get confused by crossing a flexbg.
> 
> Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
> Reported-by: TR Reardon <thomas_reardon@...mail.com>

Applied, thanks.

						- Ted
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