Hi Jason, Andrew, Jason: Here is the change to get_user_pages_fast(), that you requested during the review of "mm/gup: track dma-pinned pages: FOLL_PIN, FOLL_LONGTERM" [1]. This is a stand-alone patch that applies to today's 5.4.0-rc6 linux.git. If anyone could please provide any run-time testing (and of course, Reviewed-by's), that would be huge. I've compiled and run it, but bpftrace tells me (as I already knew) that my current anemic IB setup is not actually exercising this code path. Andrew: unless instructed otherwise, I plan to also re-post this as part of the next (v3) version of [1], and hopefully have the whole series go through your tree. That would avoid merge conflicts, and as I understand it, there is no particular urgency for this patch, so we might as well do it the easy way. John Hubbard (1): IB/umem: use get_user_pages_fast() to pin DMA pages drivers/infiniband/core/umem.c | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) -- 2.24.0
