blk_rq_map_user

Name:blk_rq_map_user

Proto:int blk_rq_map_user(struct request_queue *q, struct request *rq, struct rq_map_data *map_data, void __user *ubuf, unsigned long len, gfp_t gfp_mask)

Type:int

Parameter:

Type	Parameter	Name
struct request_queue *	q
struct request *	rq
struct rq_map_data *	map_data
void __user *	ubuf
unsigned long	len
gfp_t	gfp_mask

167

ret = import_single_range(rq_data_dir(rq), ubuf, len, & iov, & i)

169

If Value for the false possibility is greater at compile time(ret < 0) Then Return ret

172

Return 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:

**Caller**
Name	Describe
sg_io
bsg_sg_io
bsg_transport_fill_hdr

Source code conversion tool public plug-in interface	X
Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion