On Tue, 2014-01-21 at 22:04 -0500, Ric Wheeler wrote: > One topic that has been lurking forever at the edges is the current 4k > limitation for file system block sizes. Some devices in production today and > others coming soon have larger sectors and it would be interesting to see if it > is time to poke at this topic again. > > LSF/MM seems to be pretty much the only event of the year that most of the key > people will be present, so should be a great topic for a joint session. But the question is what will the impact be. A huge amount of fuss was made about 512->4k. Linux was totally ready because we had variable block sizes and our page size is 4k. I even have one pure 4k sector drive that works in one of my test systems. However, the result was the market chose to go the physical/logical route because of other Operating System considerations, all 4k drives expose 512 byte sectors and do RMW internally. For us it becomes about layout and alignment, which we already do. I can't see how going to 8k or 16k would be any different from what we've already done. In other words, this is an already solved problem. James -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>