On Wed, Feb 13, 2019 at 05:50:36PM +0800, Bob Liu wrote: > @nr_mirrors is 1 by default which means only one copy, drivers e.g raid1 are > responsible for setting the right value. The maximum value is > BITS_PER_LONG which is 32 or 64. That should be big enough else retry lantency > may be too high. This is admittedly bike-shedding, so feel free to ignore, but... In the case of Raid 6, "mirrors" will be a bit of a misnomer. Would "nr_recovery" be better? Thanks for working on this!! I would be interested in using this for ext4 once it's available. - Ted