Provide the needed kernel support for distinguishing readahead from regular read requests when tracing block devices. Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jens Axboe <axboe@suse.de>