On 06/03/18 18:05, Igor Stoppa wrote: > On 06/03/2018 16:10, Matthew Wilcox wrote: [...] >> This seems unnecessarily complicated. > > TBH it seemed to me a natural extension of the existing encoding :-) BTW, to provide some background, this is where it begun: http://www.openwall.com/lists/kernel-hardening/2017/08/18/4 Probably that comment about "keeping existing behavior and managing two bitmaps locklessly" is what made me think of growing the 1-bit-per-unit into a 1-word-per-unit. -- igor -- 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>