blk-mq: split blk_mq_alloc_and_init_hctx into two parts

Split blk_mq_alloc_and_init_hctx into two parts, and one is
blk_mq_alloc_hctx() for allocating all hctx resources, another
is blk_mq_init_hctx() for initializing hctx, which serves as
counter-part of blk_mq_exit_hctx().

Cc: Dongli Zhang <[email protected]>
Cc: James Smart <[email protected]>
Cc: Bart Van Assche <[email protected]>
Cc: [email protected]
Cc: Martin K . Petersen <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: James E . J . Bottomley <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Tested-by: James Smart <[email protected]>
Signed-off-by: Ming Lei <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>

0 files changed, 0 insertions, 0 deletions