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由 Dennis Zhou 提交于
It is possible for blkg creation to fail when in blk_get_rl(). In this situation, the fallback logic returns the nearest created blkg. There is however special handling for the request_list for the root blkcg. This fixes the missing edge case from the earlier series changing blk_get_rl(). Fixes: e2b09899 ("blkcg: cleanup and make blk_get_rl use blkg_lookup_create") Signed-off-by: NDennis Zhou <dennis@kernel.org> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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