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SubjectRe: [PATCH] Optimize lock in queue unplugging
On Wed, Apr 30, 2008 at 09:14:15AM +0200, Jens Axboe wrote:
> So it's basically dm calling into blk_unplug() all the time, which
> doesn't check if the queue is plugged. The reason why I didn't like the
> initial patch is that ->unplug_fn() really should not be called unless
> the queue IS plugged. So how about this instead:
> That's a lot more appropriate, imho.

Makes sense to me, ack.


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