X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2FKconfig;h=332f5c29b53a3c04665e4d727fc50dbfde609fb2;hb=f0cd91a68acdc9b49d7f6738b514a426da627649;hp=a9cb80ae6409df599cc3823a7a072a158c41112c;hpb=9fdb62af92c741addbea15545f214a6e89460865;p=linux-2.6

diff --git a/mm/Kconfig b/mm/Kconfig
index a9cb80ae64..332f5c29b5 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.