Re: [PATCH v6 15/17] dax: add struct iomap based DAX PMD support

2016-10-13 Thread Ross Zwisler
On Thu, Oct 13, 2016 at 05:42:24PM +0200, Jan Kara wrote: > On Wed 12-10-16 16:50:20, Ross Zwisler wrote: > > DAX PMDs have been disabled since Jan Kara introduced DAX radix tree based > > locking. This patch allows DAX PMDs to participate in the DAX radix tree > > based locking scheme so that

Re: [PATCH v6 15/17] dax: add struct iomap based DAX PMD support

2016-10-13 Thread Jan Kara
On Wed 12-10-16 16:50:20, Ross Zwisler wrote: > DAX PMDs have been disabled since Jan Kara introduced DAX radix tree based > locking. This patch allows DAX PMDs to participate in the DAX radix tree > based locking scheme so that they can be re-enabled using the new struct > iomap based fault

[PATCH v6 15/17] dax: add struct iomap based DAX PMD support

2016-10-12 Thread Ross Zwisler
DAX PMDs have been disabled since Jan Kara introduced DAX radix tree based locking. This patch allows DAX PMDs to participate in the DAX radix tree based locking scheme so that they can be re-enabled using the new struct iomap based fault handlers. There are currently three types of DAX 4k