Name
blk_rq_err_bytes —
determine number of bytes till the next failure boundary
Synopsis
unsigned int blk_rq_err_bytes ( | const struct request * rq); |
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.