path: root/block/Kconfig.iosched
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authorJens Axboe <>2017-01-17 06:03:22 -0700
committerJens Axboe <>2017-01-17 10:04:20 -0700
commitbd166ef183c263c5ced656d49ef19c7da4adc774 (patch)
tree449bbd3b4e671b370b96e3846b2281116e7089e9 /block/Kconfig.iosched
parent2af8cbe30531eca73c8f3ba277f155fc0020b01a (diff)
blk-mq-sched: add framework for MQ capable IO schedulers
This adds a set of hooks that intercepts the blk-mq path of allocating/inserting/issuing/completing requests, allowing us to develop a scheduler within that framework. We reuse the existing elevator scheduler API on the registration side, but augment that with the scheduler flagging support for the blk-mq interfce, and with a separate set of ops hooks for MQ devices. We split driver and scheduler tags, so we can run the scheduling independently of device queue depth. Signed-off-by: Jens Axboe <> Reviewed-by: Bart Van Assche <> Reviewed-by: Omar Sandoval <>
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