block, bfq: get a ref to a group when adding it to a service tree
BFQ schedules generic entities, which may represent either bfq_queues or groups of bfq_queues. When an entity is inserted into a service tree, a reference must be taken, to make sure that the entity does not disappear while still referred in the tree. Unfortunately, such a reference is mistakenly taken only if the entity represents a bfq_queue. This commit takes a reference also in case the entity represents a group. Tested-by:Oleksandr Natalenko <oleksandr@natalenko.name> Tested-by:
Chris Evich <cevich@redhat.com> Signed-off-by:
Paolo Valente <paolo.valente@linaro.org> Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
4d8340d0
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