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(parent: cc4d1ef) | patch
md/raid1: make sequential read detection per disk based
authorShaohua Li <shli@kernel.org>
Tue, 31 Jul 2012 00:03:53 +0000 (10:03 +1000)
committerNeilBrown <neilb@suse.de>
Tue, 31 Jul 2012 00:03:53 +0000 (10:03 +1000)
commitbe4d3280b17bc51f23ec6ebb345728f302f80a0c
tree1fc4e6d04fd57667b6b496ae6165d08f59405743tree | snapshot (tar.gz zip)
parentcc4d1efdd017083bbcbaf23feb4cdc717fa7dab8commit | diff
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>
drivers/md/raid1.c diff | blob | blame | history
drivers/md/raid1.h diff | blob | blame | history