blk_add_trace_bio_remap(9) centos man page | unix.com

BLK_ADD_TRACE_BIO_RE(9) 					   Block Devices					   BLK_ADD_TRACE_BIO_RE(9)

NAME
       blk_add_trace_bio_remap - Add a trace for a bio-remap operation

SYNOPSIS
       void blk_add_trace_bio_remap(void * ignore, struct request_queue * q, struct bio * bio, dev_t dev, sector_t from);

ARGUMENTS
       ignore
	   trace callback data parameter (not used)

       q
	   queue the io is for

       bio
	   the source bio

       dev
	   target device

       from
	   source sector

DESCRIPTION
       Device mapper or raid target sometimes need to split a bio because it spans a stripe (or similar). Add a trace for that action.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   BLK_ADD_TRACE_BIO_RE(9)