On Wed, 14 Jan 2026 21:42:22 -0500 Gregory Price <[email protected]> wrote:
> Since this protection may break userspace tools, it should > be an opt-in until those tools have time to update to the > new daxN.M/hotplug interface instead of memory blocks. > > --- a/drivers/dax/Kconfig > +++ b/drivers/dax/Kconfig > @@ -78,4 +78,22 @@ config DEV_DAX_KMEM > > Say N if unsure. > > +config DEV_DAX_KMEM_PROTECTED Users must rebuild and redeploy kernels after having updated a userspace tool. They won't thank us for this ;) Isn't there something we can do to make this feature backward-compatible?
