BLK_ADD_TRACE_BIO_RE(9) Block Devices BLK_ADD_TRACE_BIO_RE(9)NAMEblk_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.
COPYRIGHTKernel Hackers Manual 3.11 November 2013 BLK_ADD_TRACE_BIO_RE(9)