On Sun, 18 Sep 2016, Piotr Kwapulinski wrote: > The MPOL_F_STATIC_NODES and MPOL_F_RELATIVE_NODES flags are irrelevant > when setting them for MPOL_LOCAL NUMA memory policy via set_mempolicy. > Return the "invalid argument" from set_mempolicy whenever > any of these flags is passed along with MPOL_LOCAL. > It is consistent with MPOL_PREFERRED passed with empty nodemask. > It also slightly shortens the execution time in paths where these flags > are used e.g. when trying to rebind the NUMA nodes for changes in > cgroups cpuset mems (mpol_rebind_preferred()) or when just printing > the mempolicy structure (/proc/PID/numa_maps). > Isolated tests done. > > Signed-off-by: Piotr Kwapulinski <kwapulinski.pi...@gmail.com>
Acked-by: David Rientjes <rient...@google.com> There wasn't an MPOL_LOCAL when I introduced either of these flags, it's an oversight to allow them to be passed. Want to try to update set_mempolicy(2) with the procedure outlined in https://www.kernel.org/doc/man-pages/patches.html as well?