cgroup: export css_next_descendant_pre for bfq

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The bfq schedule now uses css_next_descendant_pre directly after
the stats functionality depending on it has been from the core
blk-cgroup code to bfq.  Export the symbol so that bfq can still
be build modular.

Fixes: d6258980da ("bfq-iosched: move bfq_stat_recursive_sum into the only caller")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Christoph Hellwig 2019-06-21 10:22:48 +02:00 • committed by Jens Axboe

parent 8d54094ef4

commit 474a280036

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kernel/cgroup/cgroup.c

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