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In case of q->elevator, passthrough request can still be marked as RQF_ELV, so some elevator callbacks will be called for them. Fix this by splitting RQF_SCHED_TAGS, which is set for all requests that are issued on a queue that uses an I/O scheduler, and RQF_USE_SCHED for non-flush, non-passthrough requests on such a queue. Roughly based on two different patches from Ming Lei <ming.lei@redhat.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Ming Lei <ming.lei@redhat.com> Link: https://lore.kernel.org/r/20230518053101.760632-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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