[dm-devel] [2.6.36 REGRESSION] Re: virtio-blk: put request that was created to retrieve the device id

[Mike Snitzer]

Hi Rusty,

On Tue, Sep 21 2010 at  5:00pm -0400,
Christoph Hellwig <hch at infradead.org> wrote:

> On Fri, Sep 17, 2010 at 09:58:48AM -0500, Ryan Harper wrote:
> > Since __bio_map_kern() sets up bio->bi_end_io = bio_map_kern_endio
> > (which does a bio_put(bio)) doesn't that ensure we don't leak?
> 
> Indeed, that should take care of it.
> 

We need to fix this regression for 2.6.36.  Not sure what else I need to
do to get this on your radar.  It's a pretty significant show-stopper
for 2.6.36 guests that use virtio-blk with a udev enabled distro.

Here is a reference to my original patch (which Ryan and hch have both
reviewed): https://patchwork.kernel.org/patch/165571/

Thanks,
Mike