[PATCH v2 for-4.6 1/3] blk-mq: Export tagset iter function

[Johannes Thumshirn]

On Wed, Mar 09, 2016 at 07:23:02PM +0200, Sagi Grimberg wrote:
> Its useful to iterate on all the active tags in cases
> where we will need to fail all the queues IO.
> 
> Signed-off-by: Sagi Grimberg <sagig at mellanox.com>

Reviewed-by: Johannes Thumshirn <jthumshirn at suse.de>

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Johannes Thumshirn                                          Storage
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