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trace_block_bio_bounce
Langue: en
Version: October 2010 (fedora - 01/12/10)
Section: 9 (Appels noyau Linux)
NAME
trace_block_bio_bounce - used bounce buffer when processing block operationSYNOPSIS
- void trace_block_bio_bounce(struct request_queue * q, struct bio * bio);
ARGUMENTS
q
- queue holding the block operation
bio
- block operation
DESCRIPTION
A bounce buffer was used to handle the block operation bio in q. This occurs when hardware limitations prevent a direct transfer of data between the bio data memory area and the IO device. Use of a bounce buffer requires extra copying of data and decreases performance.
AUTHORS
Jason Baron <jbaron@redhat.com>
- Author.
William Cohen <wcohen@redhat.com>
- Author.
COPYRIGHT
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre