On 8 November 2017 at 15:25, Jungseung Lee <js07.lee@xxxxxxxxx> wrote: > On Tue, Nov 7, 2017 at 9:54 PM, Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote: >> On 7 November 2017 at 08:02, Jungseung Lee <js07.lee@xxxxxxxxxxx> wrote: >>> Some devices return zeroes on read to unmmaped logical blocks. >>> Use this behavior to implement REQ_OP_WRITES_ZEROES. >>> >>> Send TRIM operation for the non-partial erase at a convenient time. >> >> This doesn't explain the problem enough. >> >> What does unmapped logical blocks means for an eMMC device? Isn't all >> logical blocks that is accessible being mapped? >> > Right. There is no unmapped logical block. > Only unmapped host address space on eMMC device exist in the spec. > > "The contents of a write block where the trim function has been applied > shall be '0' or '1' depending on different memory technology" > > I'd like to fix the name as trimmed block. Is it more clear and reasonable? Yes, thanks! [...] Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
