Diffstat (limited to 'mm/Kconfig')
1 files changed, 3 insertions, 1 deletions
diff --git a/mm/Kconfig b/mm/Kconfig
index edd300aca173..57963c6063d1 100644
@@ -224,7 +224,9 @@ config KSM
the many instances by a single resident page with that content, so
saving memory until one or another app needs to modify the content.
Recommended for use with KVM, or with other duplicative applications.
- See Documentation/vm/ksm.txt for more information.
+ See Documentation/vm/ksm.txt for more information: KSM is inactive
+ until a program has madvised that an area is MADV_MERGEABLE, and
+ root has set /sys/kernel/mm/ksm/run to 1 (if CONFIG_SYSFS is set).
int "Low address space to protect from user allocation"