Re: [PATCH 07/11] blkcg: make request_queue bypassing on allocation

[Vivek Goyal <vgoyal@xxxxxxxxxx>]

On Fri, Apr 13, 2012 at 01:37:26PM -0700, Tejun Heo wrote:

[..]
> blk_cleanup_queue() doesn't use blk_queue_bypass_start() to enter
> bypass mode.

Oh now elevator_exit() has been moved into blk_release_queue(). But
problem will still be there, isn't it? During driver init, most likely driver
is holding last reference of the queue and blk_release_queue() will be called
in the context of blk_cleanup_queue() causing the overhead?

Thanks
Vivek
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