BLK_RQ_ERR_BYTES(9) Block Devices BLK_RQ_ERR_BYTES(9)NAMEblk_rq_err_bytes - determine number of bytes till the next failure
boundary
SYNOPSIS
unsigned int blk_rq_err_bytes(const struct request * rq);
ARGUMENTS
rq
request to examine
DESCRIPTION
A request could be merge of IOs which require different failure
handling. This function determines the number of bytes which can be
failed from the beginning of the request without crossing into area
which need to be retried further.
RETURN
The number of bytes to fail.
CONTEXT
queue_lock must be held.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 BLK_RQ_ERR_BYTES(9)