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-rw-r--r--mm/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index a9cb80a..bd80460 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -137,5 +137,11 @@ config SPLIT_PTLOCK_CPUS
# support for page migration
#
config MIGRATION
+ bool "Page migration"
def_bool y if NUMA || SPARSEMEM || DISCONTIGMEM
depends on SWAP
+ 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.