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block: move bio_allowed_max_sectors to blk-merge.c 

Move this helper into the only file where it is used.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220727162300.3089193-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2022-07-27 12:22:59 -04:00 committed by Jens Axboe
parent a85b36375b
commit b6dc6198eb
2 changed files with 10 additions and 10 deletions
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10
block/blk-merge.c
View File

@ -95,6 +95,16 @@ static inline bool req_gap_front_merge(struct request *req, struct bio *bio)
return bio_will_gap(req->q, NULL, bio, req->bio);
}
/*
* The max size one bio can handle is UINT_MAX becasue bvec_iter.bi_size
* is defined as 'unsigned int', meantime it has to be aligned to with the
* logical block size, which is the minimum accepted unit by hardware.
*/
static unsigned int bio_allowed_max_sectors(struct request_queue *q)
{
return round_down(UINT_MAX, queue_logical_block_size(q)) >> 9;
}
static struct bio *bio_split_discard(struct bio *bio, struct request_queue *q,
unsigned *nsegs, struct bio_set *bs)
{

10
block/blk.h
View File

@ -344,16 +344,6 @@ static inline void req_set_nomerge(struct request_queue *q, struct request *req)
q->last_merge = NULL;
}
/*
* The max size one bio can handle is UINT_MAX becasue bvec_iter.bi_size
* is defined as 'unsigned int', meantime it has to aligned to with logical
* block size which is the minimum accepted unit by hardware.
*/
static inline unsigned int bio_allowed_max_sectors(struct request_queue *q)
{
return round_down(UINT_MAX, queue_logical_block_size(q)) >> 9;
}
/*
* Internal io_context interface
*/