[RFC,2/2] mm, fs: daxfile, an interface for byte-addressable updates
I'm unable to find the patch in Linux upstream kernel, and am wondering if
there has been a change of plan for providing support to byte granularity
read() and write() to character device /dev/dax.
I've also just started following the email threads, so I might have
missed some critical discussions. Would you mind to elaborate what's
happening to the proposed feature?
Device dax only supports mmap for data path access. There are no plans
to support read(2) or write(2).