[RFC 4/8] mm: Accommodate coherent device memory nodes in MPOL_BIND implementation

This change is part of the isolation requiring coherent device memory nodes implementation. Currently MPOL_MBIND interface simply fails on a coherent device memory node after the zonelist changes introduced earlier. Without __GFP_THISNODE flag, the first node of the nodemask will not be selected

[RFC 4/8] mm: Accommodate coherent device memory nodes in MPOL_BIND implementation

This change is part of the isolation requiring coherent device memory nodes implementation. Currently MPOL_MBIND interface simply fails on a coherent device memory node after the zonelist changes introduced earlier. Without __GFP_THISNODE flag, the first node of the nodemask will not be selected