block, bfq: do not idle if only one group is activated

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Now that root group is counted into 'num_groups_with_pending_reqs',
'num_groups_with_pending_reqs > 0' is always true in
bfq_asymmetric_scenario(). Thus change the condition to '> 1'.

On the other hand, this change can enable concurrent sync io if only
one group is activated.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Link: https://lore.kernel.org/r/20220916071942.214222-5-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Yu Kuai 2022-09-16 15:19:40 +08:00 • committed by Jens Axboe

parent 71f8ca77cb

commit eed3ecc991

1 changed files with 2 additions and 2 deletions

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block/bfq-iosched.c

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