On 4/9/20 12:20 AM, Tetsuo Handa wrote:
Hello.
On 2020/04/09 15:38, John Hubbard wrote:
Also, if you happen to know if anything is calling pin_user_page*() and/or unpin_user_page*(), that
is extra credit. :)
Ah, I got it. I can see that only nr_foll_pin_released is increasing after I hit WARN_ON(),
and indeed AKARI is calling unpin_user_page() when put_user() should be used.
https://osdn.net/projects/akari/scm/svn/blobs/head/trunk/akari/permission.c line 1480
Sorry for the noise. Thank you.
Thanks for the quick investigation, it's a relief to hear that. :)
thanks,
--
John Hubbard
NVIDIA
