block: move two bvec structure into bvec.h

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This patch moves 'struct bio_vec' and 'struct bvec_iter'
into 'include/linux/bvec.h', then always include this header
into 'include/linux/blk_types.h'.

With this change, both 'struct bvec_iter' and bvec iterator
helpers don't depend on CONFIG_BLOCK any more, then we can
use bvec iterator to implement iterate_bvec(): lib/iov_iter.c.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Tested-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

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This commit is contained in:

Ming Lei 2016-05-30 21:34:30 +08:00 • committed by Jens Axboe

parent 8fc554552c

commit 0781e79eb2

3 changed files with 23 additions and 23 deletions

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1

include/linux/bio.h

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22

include/linux/blk_types.h

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23

include/linux/bvec.h

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