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-rw-r--r--mm/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index b3db11f..a9cb80a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -132,3 +132,10 @@ config SPLIT_PTLOCK_CPUS
default "4096" if ARM && !CPU_CACHE_VIPT
default "4096" if PARISC && !PA20
default "4"
+
+#
+# support for page migration
+#
+config MIGRATION
+ def_bool y if NUMA || SPARSEMEM || DISCONTIGMEM
+ depends on SWAP
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