Re: [PATCH 6/7] blk-mq: enable polling support by default

On Fri, Feb 26, 2016 at 03:44:30PM -0500, Jeff Moyer wrote:

Hi, Christoph,

Christoph Hellwig [off-list ref] writes:

quoted

Now that applications need to explicitly ask for polling we can enable it
by default in blk-mq drivers.

I don't think this is a good idea.  I'd just enable it in nvme and the
micron driver for now.

I think my wording was a bit unclear - the flag to enable polling is
enabled everywhere.  You still need to implement the poll blk_mq operation,
which currently only NVMe implements.