Name
bio_copy_kern —
copy kernel address into bio
Synopsis
struct bio * bio_copy_kern ( | struct request_queue * q, |
| | void * data, |
| | unsigned int len, |
| | gfp_t gfp_mask, |
| | int reading); |
Arguments
q
the struct request_queue for the bio
data
pointer to buffer to copy
len
length in bytes
gfp_mask
allocation flags for bio and page allocation
reading
data direction is READ
Description
copy the kernel address into a bio suitable for io to a block
device. Returns an error pointer in case of error.