centos man page for blk_rq_err_bytes

Query: blk_rq_err_bytes

OS: centos

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

BLK_RQ_ERR_BYTES(9)						   Block Devices					       BLK_RQ_ERR_BYTES(9)

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);
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.
COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 BLK_RQ_ERR_BYTES(9)
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