Re: [PATCH v3 2/5] mm/hugetlb: take page table lock in follow_huge_pmd()

2014-10-07 Thread Naoya Horiguchi
Hi Hugh, Sorry for the delayed response, I was off for vacation. On Mon, Sep 29, 2014 at 09:32:20PM -0700, Hugh Dickins wrote: > On Mon, 15 Sep 2014, Naoya Horiguchi wrote: > > We have a race condition between move_pages() and freeing hugepages, > > I've been looking through these 5 today, and t

Re: [PATCH v3 2/5] mm/hugetlb: take page table lock in follow_huge_pmd()

2014-09-29 Thread Hugh Dickins
On Mon, 15 Sep 2014, Naoya Horiguchi wrote: > We have a race condition between move_pages() and freeing hugepages, I've been looking through these 5 today, and they're much better now, thank you. But a new concern below, and a minor correction to 3/5. > --- mmotm-2014-09-09-14-42.orig/mm/gup.c >