Re: [PATCH 05/10] block: remove per-queue plugging

[hch@xxxxxxxxxxxxx]

On Mon, Apr 18, 2011 at 05:23:06PM -0400, hch@xxxxxxxxxxxxx wrote:
> > NeilBrown (6):
> >       md: use new plugging interface for RAID IO.
> >       md/dm - remove remains of plug_fn callback.
> >       md - remove old plugging code.
> >       md: provide generic support for handling unplug callbacks.
> >       md: incorporate new plugging into raid5.
> >       md: fix up raid1/raid10 unplugging.
> 
> Looking over more of the unplugging left over, is there a reason to
> keep the unplug_work bits in CFQ?  They seem to rather counter the
> current scheme (and it is the last user of kblockd outside of
> blk-core.c)

Jens, Vivkek:

can you take a look at if cfq_schedule_dispatch is still needed in
new unplugging world order?  It's the only kblockd user outside the
block core that's still left, and it seems rather odd to me at least.

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