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.