[PATCH AUTOSEL for 3.18 085/101] mm/mempolicy: add nodes_empty check in SYSC_migrate_pages

From: Yisheng Xie [ Upstream commit 0486a38bcc4749808edbc848f1bcf232042770fc ] As in manpage of migrate_pages, the errno should be set to EINVAL when none of the node IDs specified by new_nodes are on-line and allowed by the process's current cpuset context, or none of

[PATCH AUTOSEL for 3.18 085/101] mm/mempolicy: add nodes_empty check in SYSC_migrate_pages

From: Yisheng Xie [ Upstream commit 0486a38bcc4749808edbc848f1bcf232042770fc ] As in manpage of migrate_pages, the errno should be set to EINVAL when none of the node IDs specified by new_nodes are on-line and allowed by the process's current cpuset context, or none of the specified nodes