On Wed, Jun 07, 2017 at 12:56:57PM +0800, zhong jiang wrote: > On 2017/6/7 11:55, Minchan Kim wrote: > > On Wed, Jun 07, 2017 at 11:08:37AM +0800, zhongjiang wrote: > >> This reverts commit e1587a4945408faa58d0485002c110eb2454740c. > >> > >> THP lru page is reclaimed , THP is split to normal page and loop again. > >> reclaimed pages should not be bigger than nr_scan. because of each > >> loop will increase nr_scan counter. > > Unfortunately, there is still underflow issue caused by slab pages as > > Vinayak reported in description of e1587a4945408 so we cannot revert. > > Please correct comment instead of removing the logic. > > > > Thanks. > we calculate the vmpressue based on the Lru page, exclude the slab pages by > previous > discussion. is it not this? >
IIRC, It is not merged into mainline although mmotm has it.
