Re: [PATCH] dax: clarify driver_data ownership

2016-12-15 Thread Johannes Thumshirn
On Wed, Dec 14, 2016 at 10:59:59PM -0800, Dan Williams wrote: > Johannes points out that the warning in alloc_dax_region() seems to > imply that multiple devices might claim a dax region. In fact it's a > warning to driver developers that the dax core wants to own the > driver_data pointer for the

[PATCH] dax: clarify driver_data ownership

2016-12-14 Thread Dan Williams
Johannes points out that the warning in alloc_dax_region() seems to imply that multiple devices might claim a dax region. In fact it's a warning to driver developers that the dax core wants to own the driver_data pointer for the hosting device of a dax_region. Add a clarification. Reported-by: Joh