Re: [FYI] tux3: Core changes

2015-05-20 Thread Daniel Phillips
On 05/20/2015 07:44 AM, Jan Kara wrote: On Tue 19-05-15 13:33:31, David Lang wrote: On Tue, 19 May 2015, Daniel Phillips wrote: I understand that Tux3 may avoid these issues due to some other mechanisms it internally has but if page forking should get into mm subsystem, the above must

Re: [FYI] tux3: Core changes

2015-05-20 Thread David Lang
On Wed, 20 May 2015, Daniel Phillips wrote: On 05/20/2015 03:51 PM, Daniel Phillips wrote: On 05/20/2015 12:53 PM, Rik van Riel wrote: How does tux3 prevent a user of find_get_page() from reading from or writing into the pre-COW page, instead of the current page? Careful control of the