bvec_gap_to

函数名称：Check if adding a bio_vec after bprv with offset would create a gap in* the SG list. Most drivers don't care about this, but some do.

函数原型：static inline bool bvec_gap_to_prev(struct request_queue *q, struct bio_vec *bprv, unsigned int offset)

返回类型：bool

参数：

**调用者**
名称	描述
__bio_add_pc_page	__bio_add_pc_page - attempt to add page to passthrough bio@q: the target queue@bio: destination bio@page: page to add@len: vec entry length@offset: vec entry offset@same_page: return if the merge happen inside the same page
blk_bio_segment_split	lk_bio_segment_split - split a bio in two bios@q: [in] request queue pointer@bio: [in] bio to be split@bs: [in] bio set to allocate the clone from@segs: [out] number of segments in the bio with the first half of the sectors* Clone @bio, update the
bio_integrity_add_page	_integrity_add_page - Attach integrity metadata@bio: bio to update@page: page containing integrity metadata@len: number of bytes of integrity metadata in page@offset: start offset within page
integrity_req_gap_back_merge
integrity_req_gap_front_merge

函数逻辑报告