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Subject: Re: btrfs zero divide (was: Re: Linux 3.10 problem reports (yes,
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From: Joe Perches <joe@perches.com>
To: Josef Bacik <jbacik@fusionio.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>, Thorsten Glaser <tg@mirbsd.de>,
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Date: Tue, 30 Jul 2013 10:36:10 -0700
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On Tue, 2013-07-30 at 13:13 -0400, Josef Bacik wrote:
> I've looked at all the places we do divides in this function and it
> doesn't look like we're doing this anywhere but I could be blind,

do_div seems a likely suspect...

	/*
	 * stripe_nr counts the total number of stripes we have to stride
	 * to get to this block
	 */
	do_div(stripe_nr, stripe_len);