BIO_COPY_KERN(9) The Linux VFS BIO_COPY_KERN(9)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.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 BIO_COPY_KERN(9)