SYNOPSIS

int blk_rq_map_kern(struct request_queue * q, struct request * rq, void * kbuf, unsigned int len, gfp_t gfp_mask);

ARGUMENTS

q

request queue where request should be inserted

rq

request to fill

kbuf

the kernel buffer

len

length of user data

gfp_mask

memory allocation flags

DESCRIPTION

Data will be mapped directly if possible. Otherwise a bounce buffer is used. Can be called multple times to append multple buffers.

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