On Wed, Jun 7, 2017 at 11:42 AM, Minchan Kim <minc...@kernel.org> wrote: > 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.
That's right Minchan. That patch was not mainlined.
