From: Pradeep Sawlani <sawlani@xxxxxxxxxx> Patch uses two bits to detect if page is scanned, one bit for odd cycle and other for even cycle. This adds one more bit in page flags and overloads existing bit (PG_owner_priv_1). Changes are based of 3.4.79 kernel, since I have used that for verification. Detail discussion can be found at https://lkml.org/lkml/2014/2/13/624 Suggestion(s) are welcome for alternative solution in order to avoid one more bit in page flags. Pradeep Sawlani (1): ksm: check and skip page, if it is already scanned include/linux/page-flags.h | 11 +++++++++++ mm/Kconfig | 10 ++++++++++ mm/ksm.c | 33 +++++++++++++++++++++++++++++++-- 3 files changed, 52 insertions(+), 2 deletions(-) -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>