On 01/13/2016 12:38 AM, Arnd Bergmann wrote: > On Tuesday 12 January 2016 18:31:19 Mikulas Patocka wrote: >> >> Another possibility is to use dm-crypt block size 4k and use a filesystem >> with 4k blocksize on it (it will never send requests not aligned on 4k >> boundary, so we could reject such requests with an error). > > Is there ever a reason to use something other than 4K block size on > dm-crypt? Most existing sw FDE systems use 512bytes blocks. I would like to see configurable block size (at least up to 4k) but as Mikulas pointed out it opens several new problems. Anyway, I do not see reason why crypto accelerators should not process these small sectors better - just hw must be designed for it. Milan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
