>>>>> "Tom" == Tom Yan <tom.ty89@xxxxxxxxx> writes: Tom, Tom> The thing is, as of ACS-4, blocks that carry DSM/TRIM LBA Range Tom> Entries are always 512-byte. Lovely. And SAT conveniently ignores this entirely. Tom> Honestly, I have no idea how that would work on a 4Kn SSD, if it is Tom> / will ever be a thing. Highly unlikely. But I guess you would have to report 8 512-byte ranges in the 4Kn case. And then rely on the patch we talked about to clamp the number of sectors based on the block layer limit. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html