Re: [PATCH v2 4/7] block: Improve default elevator selection

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On Wed, Aug 28, 2019 at 11:29:44AM +0900, Damien Le Moal wrote:
> For block devices that do not specify required features, preserve the
> current default elevator selection (mq-deadline for single queue
> devices, none for multi-queue devices). However, for devices specifying
> required features (e.g. zoned block devices ELEVATOR_F_ZBD_SEQ_WRITE
> feature), select the first available elevator providing the required
> features.
> 
> In all cases, default to "none" if no elevator is available or if the
> initialization of the default elevator fails.
> 
> Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx>

Looks good,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>



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