block,bfq: Disable writeback throttling
authorLuca Miccio <lucmiccio@gmail.com>
Mon, 9 Oct 2017 14:27:21 +0000 (16:27 +0200)
committerJens Axboe <axboe@kernel.dk>
Mon, 9 Oct 2017 14:29:21 +0000 (08:29 -0600)
commitb5dc5d4d1f4ff9032eb6c21a3c571a1317dc9289
treec07e1fdfef55d45a0a879869e62a006b37ad60fc
parent94af584692091347baea4d810b9fc6e0f5483d42
block,bfq: Disable writeback throttling

Similarly to CFQ, BFQ has its write-throttling heuristics, and it
is better not to combine them with further write-throttling
heuristics of a different nature.
So this commit disables write-back throttling for a device if BFQ
is used as I/O scheduler for that device.

Signed-off-by: Luca Miccio <lucmiccio@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Tested-by: Lee Tibbert <lee.tibbert@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/bfq-iosched.c
block/blk-wbt.c