1 files changed, 8 insertions, 2 deletions

diff --git a/mm/Kconfig b/mm/Kconfig
index a9cb80ae6409..332f5c29b53a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -137,5 +137,11 @@ config SPLIT_PTLOCK_CPUS
 # support for page migration
 #
 config MIGRATION
-        def_bool y if NUMA || SPARSEMEM || DISCONTIGMEM
-        depends on SWAP
+        bool "Page migration"
+        def_bool y if NUMA
+        depends on SWAP && NUMA
+        help
+          Allows the migration of the physical location of pages of processes
+          while the virtual addresses are not changed. This is useful for
+          example on NUMA systems to put pages nearer to the processors accessing
+          the page.