On 2/27/22 13:59, Jens Axboe wrote:
On 2/27/22 2:34 AM, jhubbard.send.patches@xxxxxxxxx wrote:
From: John Hubbard <jhubbard@xxxxxxxxxx>
Use pin_user_pages_fast(), pin_user_page(), and unpin_user_page() calls,
in place of get_user_pages_fast(), get_page() and put_page().
This converts the Direct IO parts of most filesystems over to using
FOLL_PIN (pin_user_page*()) page pinning.
The commit message needs to explain why a change is being made, not what
is being done. The latter I can just look at the code for.
Didn't even find it in in your cover letter, had to go to the original
posting for that.
Sorry about that, I'll sit down and write up something thorough for this
patch. It is after the central thing, and it got neglected here.
thanks,
--
John Hubbard
NVIDIA
