blk-mq: Introduce blk_mq_reinit_tagset

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The new nvme-rdma driver will need to reinitialize all the tags as part of
the error recovery procedure (realloc the tag memory region). Add a helper
in blk-mq for it that can iterate over all requests in a tagset to make
this easier.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Ming Lin <ming.l@ssi.samsung.com>
Reviewed-by: Stephen Bates <Stephen.Bates@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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Sagi Grimberg 2016-07-06 21:55:48 +09:00 • committed by Jens Axboe

parent d9e46d5d7c

commit 486cf9899e

2 changed files with 29 additions and 0 deletions

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include/linux/blk-mq.h

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