.. snip .. > > Also, values with magic block counts, while there is no way to get the > > blocksize with the same interface, are pretty weird. I think the > > current "size" attribute is just a bug. > > Logical block size is fixed at 512 bytes. Offset and size are always > represented in multiples of 512 bytes and only get converted to > hardware block size in the lld. That interpretation is at odds with the work that Martin Peterson is doing with the 4K support. In the e-mail titled: "Re: [PATCH 4 of 8] sd: Physical block size and alignment support", Message-ID:<yq1ab67b51p.fsf@xxxxxxxxxxxxxxxxxx> he says: " Konrad> about what a 'logical block', and 'physical block' is Konrad> vs. 'hardware sector' ? Well, another item on my todo list is to kill the notion of hardware sector completely. The protocols have been referring to logical blocks for ages. It hasn't been a big problem until now because logical block size has been equal to the hardware sector size. That's no longer a valid assumption. " Are the ATA/SCSI/etc specs at odds with each other about this? -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
