Re: [PATCH v6 04/17] misc/habana: Use FOLL_LONGTERM for userptr
From: Oded Gabbay <hidden>
Date: 2020-11-21 10:16:28
Also in:
dri-devel, kvm, linux-media, linux-mm, linux-samsung-soc, lkml
On Thu, Nov 19, 2020 at 4:41 PM Daniel Vetter [off-list ref] wrote:
quoted hunk ↗ jump to hunk
These are persistent, not just for the duration of a dma operation. Signed-off-by: Daniel Vetter <redacted> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Jérôme Glisse <redacted> Cc: Jan Kara <jack@suse.cz> Cc: Dan Williams <redacted> Cc: linux-mm@kvack.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: Oded Gabbay <redacted> Cc: Omer Shpigelman <redacted> Cc: Ofir Bitton <redacted> Cc: Tomer Tayar <redacted> Cc: Moti Haimovski <redacted> Cc: Daniel Vetter <redacted> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Pawel Piskorski <redacted> Signed-off-by: Daniel Vetter <redacted> --- drivers/misc/habanalabs/common/memory.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index 0b220221873d..d08c41b90fec 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c@@ -1298,7 +1298,8 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size, return -ENOMEM; } - rc = pin_user_pages_fast(start, npages, FOLL_FORCE | FOLL_WRITE, + rc = pin_user_pages_fast(start, npages, + FOLL_FORCE | FOLL_WRITE | FOLL_LONGTERM, userptr->pages); if (rc != npages) { --2.29.2
This patch and the previous one (03/17 misc/habana: Stop using frame_vector helpers) are both: Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Thanks, Oded _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel