tree 1fc4e6d04fd57667b6b496ae6165d08f59405743
parent cc4d1efdd017083bbcbaf23feb4cdc717fa7dab8
author Shaohua Li <shli@kernel.org> 1343693033 +1000
committer NeilBrown <neilb@suse.de> 1343693033 +1000

md/raid1: make sequential read detection per disk based

Currently the sequential read detection is global wide. It's natural to make it
per disk based, which can improve the detection for concurrent multiple
sequential reads. And next patch will make SSD read balance not use distance
based algorithm, where this change help detect truly sequential read for SSD.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>