Re: [PATCH v8 7/9] dax: add dax holder helper for filesystems

On Wed, Dec 15, 2021 at 10:21:00AM +0800, Shiyang Ruan wrote: > > > 在 2021/12/14 23:47, Christoph Hellwig 写道: > > On Thu, Dec 02, 2021 at 04:48:54PM +0800, Shiyang Ruan wrote: > > > Add these helper functions, and export them for filesystem use. > > > > What is the point of adding these wrappers

Re: [PATCH v8 1/9] dax: Use percpu rwsem for dax_{read,write}_lock()

On Wed, Dec 15, 2021 at 10:06:29AM +0800, Shiyang Ruan wrote: > > > 在 2021/12/14 23:40, Christoph Hellwig 写道: > > On Thu, Dec 02, 2021 at 04:48:48PM +0800, Shiyang Ruan wrote: > > > In order to introduce dax holder registration, we need a write lock for > > > dax. Change the current lock to perc