i2o_block_prep_req_fn - Allocates I2O block device specific struct
2. SYNOPSIS ▲
int i2o_block_prep_req_fn(struct request_queue * q , struct request * req );
3. ARGUMENTS ▲
request queue for the request
the request to prepare
4. DESCRIPTION ▲
Allocate the necessary i2o_block_request struct and connect it to the request. This is needed that we not lose the SG list later on.
Returns BLKPREP_OK on success or BLKPREP_DEFER on failure.
5. COPYRIGHT ▲