Add description for MPOL_HYBRID mode in kernel documentation. Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx> --- Documentation/admin-guide/mm/numa_memory_policy.rst | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/admin-guide/mm/numa_memory_policy.rst b/Documentation/admin-guide/mm/numa_memory_policy.rst index d78c5b3..3db8257 100644 --- a/Documentation/admin-guide/mm/numa_memory_policy.rst +++ b/Documentation/admin-guide/mm/numa_memory_policy.rst @@ -198,6 +198,16 @@ MPOL_BIND the node in the set with sufficient free memory that is closest to the node where the allocation takes place. +MPOL_HYBRID + This mode specifies that the page allocation must happen on the + nodes specified by the policy. If both DRAM and non-DRAM nodes + are specified, NUMA balancing may promote the pages from non-DRAM + nodes to the specified DRAM nodes. If only non-DRAM nodes are + specified, NUMA balancing may promote the pages to any available + DRAM nodes. Any other policy doesn't do such page promotion. The + default mode may do NUMA balancing, but non-DRAM nodes are masked + off for default mode. + MPOL_PREFERRED This mode specifies that the allocation should be attempted from the single node specified in the policy. If that -- 1.8.3.1
