11 Jun
2018
11 Jun
'18
9:58 p.m.
On Fri, 18 May 2018 18:35:08 -0700 Dan Williams dan.j.williams@intel.com wrote:
get_user_pages_fast() for device pages is missing the typical validation that all page references have been taken while the mapping was valid. Without this validation truncate operations can not reliably coordinate against new page reference events like O_DIRECT.
I'm not seeing anything in the changelog which justifies a -stable backport. ie: a description of the end-user-visible effects of the bug?