Tested-by: Oleksandr Natalenko <oleksa...@natalenko.name>

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 <lucmic...@gmail.com>
Signed-off-by: Paolo Valente <paolo.vale...@linaro.org>
---
 block/bfq-iosched.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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