Re: [PATCH v3 0/3] mm: introduce fincore() v3

On Tue, Jul 08, 2014 at 09:27:55AM -0400, Naoya Horiguchi wrote:

On Tue, Jul 08, 2014 at 05:16:18AM -0700, Christoph Hellwig wrote:

quoted

Still a hard NAK for exposing page flags in a syscall ABI.  These are
way to volatile to go into an application interface.

Is there any specific reason that exporting via syscall ABI is more
volatile than exporting via procfs as /proc/kpageflags alreadly does?

An optional proc debug output is very different from an actual system
call.

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