[PATCH 11/19] net/xdp: set FOLL_PIN via pin_user_pages()

[PATCH 00/19] mm/gup: track dma-pinned pages: FOLL_PIN, FOLL_LONGTERM · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 17/19] selftests/vm: run_vmtests: invoke gup_benchmark with basic FOLL_PIN coverage · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 19/19] Documentation/vm: add pin_user_pages.rst · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 19/19] Documentation/vm: add pin_user_pages.rst · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 19/19] Documentation/vm: add pin_user_pages.rst · John Hubbard <jhubbard@nvidia.com> · 2019-10-31
Re: [PATCH 19/19] Documentation/vm: add pin_user_pages.rst · John Hubbard <jhubbard@nvidia.com> · 2019-11-01
Re: [PATCH 19/19] Documentation/vm: add pin_user_pages.rst · John Hubbard <jhubbard@nvidia.com> · 2019-11-03
[PATCH 18/19] mm/gup: remove support for gup(FOLL_LONGTERM) · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 14/19] vfio, mm: pin_longterm_pages (FOLL_PIN) and put_user_page() conversion · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 14/19] vfio, mm: pin_longterm_pages (FOLL_PIN) and put_user_page() conversion · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 13/19] media/v4l2-core: pin_longterm_pages (FOLL_PIN) and put_user_page() conversion · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 13/19] media/v4l2-core: pin_longterm_pages (FOLL_PIN) and put_user_page() conversion · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
[PATCH 16/19] mm/gup_benchmark: support pin_user_pages() and related calls · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 15/19] powerpc: book3s64: convert to pin_longterm_pages() and put_user_page() · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 10/19] fs/io_uring: set FOLL_PIN via pin_user_pages() · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 10/19] fs/io_uring: set FOLL_PIN via pin_user_pages() · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 10/19] fs/io_uring: set FOLL_PIN via pin_user_pages() · Jens Axboe <axboe@kernel.dk> · 2019-11-01
[PATCH 12/19] mm/gup: track FOLL_PIN pages · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 11/19] net/xdp: set FOLL_PIN via pin_user_pages() · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 11/19] net/xdp: set FOLL_PIN via pin_user_pages() · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 11/19] net/xdp: set FOLL_PIN via pin_user_pages() · Björn Töpel <hidden> · 2019-11-02
[PATCH 07/19] infiniband: set FOLL_PIN, FOLL_LONGTERM via pin_longterm_pages*() · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 07/19] infiniband: set FOLL_PIN, FOLL_LONGTERM via pin_longterm_pages*() · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 07/19] infiniband: set FOLL_PIN, FOLL_LONGTERM via pin_longterm_pages*() · John Hubbard <jhubbard@nvidia.com> · 2019-10-31
[PATCH 02/19] mm/gup: factor out duplicate code from four routines · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 02/19] mm/gup: factor out duplicate code from four routines · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 02/19] mm/gup: factor out duplicate code from four routines · John Hubbard <jhubbard@nvidia.com> · 2019-10-31
Re: [PATCH 02/19] mm/gup: factor out duplicate code from four routines · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 02/19] mm/gup: factor out duplicate code from four routines · John Hubbard <jhubbard@nvidia.com> · 2019-10-31
[PATCH 06/19] goldish_pipe: convert to pin_user_pages() and put_user_page() · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
[PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages_fast() · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages_fast() · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages_fast() · Daniel Vetter <hidden> · 2019-11-04
Re: [PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages_fast() · John Hubbard <jhubbard@nvidia.com> · 2019-11-04
Re: [PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages_fast() · Daniel Vetter <hidden> · 2019-11-05
Re: [PATCH 09/19] drm/via: set FOLL_PIN via pin_user_pages_fast() · John Hubbard <jhubbard@nvidia.com> · 2019-11-05
[PATCH 03/19] goldish_pipe: rename local pin_user_pages() routine · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 03/19] goldish_pipe: rename local pin_user_pages() routine · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
[PATCH 08/19] mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 08/19] mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 08/19] mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() · John Hubbard <jhubbard@nvidia.com> · 2019-10-31
[PATCH 05/19] mm/gup: introduce pin_user_pages*() and FOLL_PIN · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 05/19] mm/gup: introduce pin_user_pages*() and FOLL_PIN · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
Re: [PATCH 05/19] mm/gup: introduce pin_user_pages*() and FOLL_PIN · John Hubbard <jhubbard@nvidia.com> · 2019-10-31
[PATCH 01/19] mm/gup: pass flags arg to __gup_device_* functions · John Hubbard <jhubbard@nvidia.com> · 2019-10-30
Re: [PATCH 01/19] mm/gup: pass flags arg to __gup_device_* functions · Ira Weiny <ira.weiny@intel.com> · 2019-10-31
[PATCH 04/19] media/v4l2-core: set pages dirty upon releasing DMA buffers · John Hubbard <jhubbard@nvidia.com> · 2019-10-30

STALE2416d

Revisions (4)

2019-10-30 v1 current
2019-11-03 v2 [diff vs current]
2019-11-12 v3 [diff vs current]
2019-11-13 v4 [diff vs current]

From: John Hubbard <jhubbard@nvidia.com>
Date: 2019-10-30 22:51:38
Also in: bpf, dri-devel, kvm, linux-block, linux-doc, linux-fsdevel, linux-kselftest, linux-media, linux-mm, linux-rdma, lkml, netdev
Subsystem: networking [general], the rest, xdp sockets (af_xdp) · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Magnus Karlsson, Maciej Fijalkowski

Convert net/xdp to use the new pin_longterm_pages() call, which sets
FOLL_PIN. Setting FOLL_PIN is now required for code that requires
tracking of pinned pages.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 net/xdp/xdp_umem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index 16d5f353163a..4d56dfb1139a 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c

@@ -285,8 +285,8 @@ static int xdp_umem_pin_pages(struct xdp_umem *umem)
 		return -ENOMEM;
 
 	down_read(&current->mm->mmap_sem);
-	npgs = get_user_pages(umem->address, umem->npgs,
-			      gup_flags | FOLL_LONGTERM, &umem->pgs[0], NULL);
+	npgs = pin_longterm_pages(umem->address, umem->npgs, gup_flags,
+				  &umem->pgs[0], NULL);
 	up_read(&current->mm->mmap_sem);
 
 	if (npgs != umem->npgs) {

-- 
2.23.0

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