[PATCH 06/13] md: update the optimal I/O size on reshape

[Martin K. Petersen]

Christoph,

> The raid5 and raid10 drivers currently update the read-ahead size, but
> not the optimal I/O size on reshape.  To prepare for deriving the
> read-ahead size from the optimal I/O size make sure it is updated as
> well.

Reviewed-by: Martin K. Petersen <martin.petersen at oracle.com>

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Martin K. Petersen	Oracle Linux Engineering