>>>>> "Jeff" == Jeff Moyer <jmoyer@xxxxxxxxxx> writes: Jeff, Jeff> Are power of 2 zone sizes required by the standard? I see why Jeff> you've done this, but I wonder if we're artificially limiting the Jeff> implementation, and whether there will be valid devices on the Jeff> market that simply won't work with Linux because of this. Standards are deliberately written to be permissive. But Linux doesn't support arbitrary sector sizes either even though the spec allows it. We always pick a reasonably sane subset of features to implement and this case is no different. After some discussion we decided to rip out all the complexity that was required to facilitate crazy drive layouts. As a result, the code is now in a state where we can actually merge it. The hope is that by picking a specific configuration subset and widely advertising it we can influence the market. Also, I am not aware of anybody actually asking the drive vendors to support crazy zone configurations. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html