Re: [RFC PATCH] Add /proc/<pid>/numa_vamaps for numa node information

[prakash.sangappa]

On 05/07/2018 05:05 PM, Dave Hansen wrote:
> On 05/07/2018 04:22 PM, prakash.sangappa wrote:
> > However, with the proposed new file, we could allow seeking to
> > specified virtual address. The lseek offset in this case would
> > represent the virtual address of the process. Subsequent read from
> > the file would provide VA range to numa node information starting
> > from that VA. In case the VA seek'ed to is invalid, it will start
> > from the next valid mapped VA of the process. The implementation
> > would not be based on seq_file.
> So you're proposing a new /proc/<pid> file that appears next to and is
> named very similarly to the exiting /proc/<pid>, but which has entirely
> different behavior?

It will be /proc/<pid>/numa_vamaps. Yes, the behavior will be
different with respect to seeking. Output will still be text and
the format will be same.

I want to get feedback on this approach.