Re: btrfs zero divide (was: Re: Linux 3.10 problem reports (yes,plural))

From: Joe Perches
Date: Tue Jul 30 2013 - 13:36:14 EST


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);


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