Re: [v3 PATCH 0/3] mm/mempolicy: some fix and semantics cleanup

From: Michal Hocko
Date: Tue Jun 01 2021 - 04:48:29 EST


On Tue 01-06-21 08:55:13, Feng Tang wrote:
[...]
> Current memory policy code has some confusing and ambiguous part about
> MPOL_LOCAL policy, as it is handled as a faked MPOL_PREFERRED one, and
> there are many places having to distinguish them. Also the nodemask
> intersection check needs cleanup to be more explicit for OOM use, and
> handle MPOL_INTERLEAVE correctly. This patchset cleans up these and
> unifies the parameter sanity check for mbind() and set_mempolicy().

Looks good to me. I would just add that this cleanup helps to make
further changes easier (notably MPOL_PREFERRED_MANY)

--
Michal Hocko
SUSE Labs