blk_rq_count_integrity

Name:lk_rq_count_integrity_sg - Count number of integrity scatterlist elements*@q: request queue*@bio: bio with integrity metadata attached* Description: Returns the number of elements required in a* scatterlist corresponding to the integrity metadata in a bio.

Proto:int blk_rq_count_integrity_sg(struct request_queue *q, struct bio *bio)

Type:int

Parameter:

Type	Parameter	Name
struct request_queue *	q
struct bio *	bio

struct bio_vec iv, ivprv = {NULL}

segments = 0

seg_size = 0

prev = 0

bio_for_each_integrity_vec(iv, bio, iter)

If prev Then

If Not biovec_phys_mergeable(q, & ivprv, & iv) Then Go to new_segment

If seg_size + bv_len > queue_max_segment_size(q) Then Go to new_segment

seg_size += bv_len

Else

new_segment :

segments++

seg_size = bv_len

prev = 1

ivprv = iv

Return segments

**Caller**
Name	Describe
blk_integrity_merge_bio

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