blk_end_io9
Generic end_io function to complete a request.
Usage
int blk_end_io(struct request * rq, int error, unsigned int nr_bytes, unsigned int bidi_bytes, int ()(struct request *) drv_callback);
Arguments
rq
the request being processed
error
0 for success, < 0 for error
nr_bytes
number of bytes to complete rq
bidi_bytes
number of bytes to complete rq->next_rq
drv_callback
function called between completion of bios in the request and completion of the request. If the callback returns non 0, this helper returns without completion of the request.
Overview
Ends I/O on a number of bytes attached to rq and rq->next_rq. If rq has leftover, sets it up for the next range of segments.
Return
0 - we are done with this request 1 - this request is not freed yet, it still has pending buffers.