bio_flagged

类型	参数	名称
struct bio *	bio
unsigned int	bit

**调用者**
名称	描述
bio_put	_put - release a reference to a bio@bio: bio to release reference to Description:* Put a reference to a &struct bio, either one you have gotten with* bio_alloc, bio_get or bio_clone_*. The last put of a bio will free it.
__bio_clone_fast	__bio_clone_fast - clone a bio that shares the original bio's biovec@bio: destination bio@bio_src: bio to clone* Clone a &bio. Caller will own the returned bio, but not* the actual data it points to. Reference count of returned* bio will be one.
__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
__bio_try_merge_page	__bio_try_merge_page - try appending data to an existing bvec.@bio: destination bio@page: start page to add@len: length of the data to add@off: offset of the data relative to @page*@same_page: return if the segment has been merged inside the same page
__bio_add_page	__bio_add_page - add page(s) to a bio in a new segment@bio: destination bio@page: start page to add@len: length of the data to add, may cross pages@off: offset of the data relative to @page, may cross pages
bio_release_pages
bio_uncopy_user	_uncopy_user - finish previously mapped bio@bio: bio being terminated Free pages allocated from bio_copy_user_iov() and write back data* to user space in case of a read.
bio_remaining_done
bio_endio	_endio - end I/O on a bio@bio: bio Description:* bio_endio() will end I/O on the whole bio. bio_endio() is the preferred* way to end I/O on a bio. No one should call bi_end_io() directly on a
bio_split	_split - split a bio@bio: bio to split@sectors: number of sectors to split from the front of @bio@gfp: gfp mask@bs: bio set to allocate from* Allocates and returns a new bio which represents @sectors from the start of
generic_make_request_checks
submit_bio	submit_bio - submit a bio to the block device layer for I/O@bio: The &struct bio which describes the I/O submit_bio() is very similar in purpose to generic_make_request(), and* uses that function to do most of the work. Both are fairly rough
__blk_rq_unmap_user
blk_rq_map_user_iov	lk_rq_map_user_iov - map user data to a request, for passthrough requests@q: request queue where request should be inserted@rq: request to map data to@map_data: pointer to the rq_map_data holding pages (if necessary)@iter: iovec iterator*@gfp_mask:
blk_rq_unmap_user	卸载一个用户数据的请求
throtl_charge_bio
blk_throtl_bio
blkcg_iolatency_done_bio
end_bio_bh_io_sync
iomap_finish_ioend	We're now finished for good with this ioend structure. Update the page* state, release holds on bios, and finally free up memory. Do not use the* ioend after this.
bio_first_bvec_all
bio_last_bvec_all
blkcg_bio_issue_check

函数逻辑报告