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![Christoph Hellwig](https://secure.gravatar.com/avatar/5155a9f7b4ebf934b9ed078d70eba285.jpg?s=96&d=mm)
Christoph Hellwig committed 24d2f90309b
blk-mq: split out tag initialization, support shared tags Add a new blk_mq_tag_set structure that gets set up before we initialize the queue. A single blk_mq_tag_set structure can be shared by multiple queues. Signed-off-by: Christoph Hellwig <hch@lst.de> Modular export of blk_mq_{alloc,free}_tagset added by me. Signed-off-by: Jens Axboe <axboe@fb.com>