On Thu, Apr 28, 2022 at 11:20:16AM +0800, Miaohe Lin wrote: > On 2022/4/27 12:28, Naoya Horiguchi wrote: > > From: Naoya Horiguchi <naoya.horiguchi@xxxxxxx> > > > > When offlining memory section with hwpoisoned pages, the hwpoisons are > > canceled. But num_poisoned_pages is not updated for that event, so the > > counter becomes inconsistent. > > IIUC, this work is already done via clear_hwpoisoned_pages when __remove_pages. > Or am I miss something? Actually I had the same question when writing this patch, and found that __remove_pages() seems to be called from device memory or HMM, but not from offline_pages(). If you mean that we could make offline_pages() call clear_hwpoisoned_pages(), that seems possible and I'll consider it. But as David and Oscar pointed out for 0/4, removing PageHWPoison flags in offlining seems not to be right thing, so I'd like to have some consensus on what way to go first. Thanks, Naoya Horiguchi
