On 8/16/19 11:33 AM, Ira Weiny wrote:
On Fri, Aug 16, 2019 at 05:41:08PM +0200, Jan Kara wrote:
On Thu 15-08-19 19:14:08, John Hubbard wrote:
On 8/15/19 10:41 AM, John Hubbard wrote:
On 8/15/19 10:32 AM, Ira Weiny wrote:
On Thu, Aug 15, 2019 at 03:35:10PM +0200, Jan Kara wrote:
On Thu 15-08-19 15:26:22, Jan Kara wrote:
On Wed 14-08-19 20:01:07, John Hubbard wrote:
On 8/14/19 5:02 PM, John Hubbard wrote:
...
OK, there was only process_vm_access.c, plus (sort of) Bharath's sgi-gru
patch, maybe eventually [1]. But looking at process_vm_access.c, I think
it is one of the patches that is no longer applicable, and I can just
drop it entirely...I'd welcome a second opinion on that...
I don't think you can drop the patch. process_vm_rw_pages() clearly touches
page contents and does not synchronize with page_mkclean(). So it is case
1) and needs FOLL_PIN semantics.
John could you send a formal patch using vaddr_pin* and I'll add it to the
tree?
Yes...hints about which struct file to use here are very welcome, btw. This part
of mm is fairly new to me.
thanks,
--
John Hubbard
NVIDIA
