On 05/12/2017 01:40 PM, Naoya Horiguchi wrote: > On Thu, Apr 20, 2017 at 04:36:27PM +0530, Anshuman Khandual wrote: >> Currently soft_offline_page() migrates the entire HugeTLB page, then >> dequeues it from the active list by making it a dangling HugeTLB page >> which ofcourse can not be used further and marks the entire HugeTLB >> page as poisoned. This might be a costly waste of memory if the error >> involved affects only small section of the entire page. >> >> This changes the behaviour so that only the affected page is marked >> poisoned and then the HugeTLB page is released back to buddy system. > Hi Anshuman, > > This is a good catch, and we can solve this issue now because freeing > hwpoisoned page (previously forbidden) is available now. > > And I'm thinking that the same issue for hard/soft-offline on free > hugepages can be solved, so I'll submit a patchset which includes > updated version of your patch. Sure, thanks Naoya. -- 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>
