Hi, this is a follow up for [1]. The first patch is what Tetsuo suggested [2], I've just added a changelog for it. This one should be merged as soon as possible. The second patch is still an RFC. I _believe_ that it is the right thing to do but I haven't checked all the PF paths which return VM_FAULT_OOM to be sure that there is nobody who would return this error when not doing a real allocation.
[1] http://lkml.kernel.org/r/1495034780-9520-1-git-send-email-g...@fb.com [2] http://lkml.kernel.org/r/201705182257.hjj52185.oqstflfmhvo...@i-love.sakura.ne.jp
