[PATCH v7 3/6] mm: Introduce VM_LOCKONFAULT

Michal Hocko mhocko at kernel.org
Thu Aug 20 00:56:11 PDT 2015

On Wed 19-08-15 17:33:45, Eric B Munson wrote:
> The group which asked for this feature here
> wants the ability to distinguish between LOCKED and LOCKONFAULT regions
> and without the VMA flag there isn't a way to do that.

Could you be more specific on why this is needed?

> Do we know that these last two open flags are needed right now or is
> this speculation that they will be and that none of the other VMA flags
> can be reclaimed?

I do not think they are needed by anybody right now but that is not a
reason why it should be used without a really strong justification.
If the discoverability is really needed then fair enough but I haven't
seen any justification for that yet.

Michal Hocko

More information about the dri-devel mailing list