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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.

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June 2024 Kernel Hackers Manual 3.10