Re: [PATCH 0/3] hugetlbfs fallocate hole punch race with page faults

2015-10-19 Thread Mike Kravetz
On 10/19/2015 04:18 PM, Andrew Morton wrote: > On Fri, 16 Oct 2015 15:08:27 -0700 Mike Kravetz > wrote: > >> The hugetlbfs fallocate hole punch code can race with page faults. The >> result is that after a hole punch operation, pages may remain within the >> hole. No other side effects of this

Re: [PATCH 0/3] hugetlbfs fallocate hole punch race with page faults

2015-10-19 Thread Andrew Morton
On Fri, 16 Oct 2015 15:08:27 -0700 Mike Kravetz wrote: > The hugetlbfs fallocate hole punch code can race with page faults. The > result is that after a hole punch operation, pages may remain within the > hole. No other side effects of this race were observed. > > In preparation for adding use

[PATCH 0/3] hugetlbfs fallocate hole punch race with page faults

2015-10-16 Thread Mike Kravetz
The hugetlbfs fallocate hole punch code can race with page faults. The result is that after a hole punch operation, pages may remain within the hole. No other side effects of this race were observed. In preparation for adding userfaultfd support to hugetlbfs, it is desirable to plug or significa