On Fri, Oct 13, 2023 at 07:30:28PM +0800, zhaoyang.huang wrote: > From: Zhaoyang Huang <zhaoyang.huang@xxxxxxxxxx> > > Dropping pages of young generation or unstable tier via madvise could > make the system experience heavy page thrashing and IO pressure. ... then userspace should not do that? > @@ -5091,6 +5091,7 @@ static int get_tier_idx(struct lruvec *lruvec, int type) > > return tier - 1; > } > +EXPORT_SYMBOL_GPL(get_tier_idx); Why would this need to be exported to modules in order to be used by madvise? Is this patch just a trojan horse so you can use get_tier_idx in your own module? NAK.
