On Tue, Jan 17, 2017 at 9:25 PM, <willy@xxxxxxxxxxxxxxxxxxxxxx> wrote: > On Fri, Jan 13, 2017 at 05:20:08PM -0700, Ross Zwisler wrote: >> We still have a lot of work to do, though, and I'd like to propose a discussion >> around what features people would like to see enabled in the coming year as >> well as what what use cases their customers have that we might not be aware of. > > +1 to the discussion > >> - Jan suggested [2] that we could use the radix tree as a cache to service DAX >> faults without needing to call into the filesystem. Are there any issues >> with this approach, and should we move forward with it as an optimization? > > Ahem. I believe I proposed this at last year's LSFMM. And I sent > patches to start that work. And Dan blocked it. So I'm not terribly > amused to see somebody else given credit for the idea. > I "blocked" moving the phys to virt translation out of the driver since that mapping lifetime is device specific. However, I think caching the file offset to physical sector/address result is a great idea. -- 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>