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be4c427809
Send write requests issued by the flush state machine through the normal I/O submission path including the I/O scheduler (if present) so that I/O scheduler policies are applied to writes with the FUA flag set. Separate the I/O scheduler members from the flush members in struct request since now a request may pass through both an I/O scheduler and the flush machinery. Note that the actual flush requests, which have no bio attached to the request still bypass the I/O schedulers. Signed-off-by: Bart Van Assche <bvanassche@acm.org> [hch: rebased] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20230519044050.107790-5-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>