* [merged] net-xdp-set-foll_pin-via-pin_user_pages.patch removed from -mm tree
@ 2020-01-31 23:18 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2020-01-31 23:18 UTC (permalink / raw)
To: alex.williamson, aneesh.kumar, axboe, bjorn.topel, corbet,
dan.j.williams, daniel.vetter, hch, hverkuil-cisco, ira.weiny,
jack, jgg, jgg, jglisse, jhubbard, kirill, leonro, mchehab,
mm-commits, rppt
The patch titled
Subject: net/xdp: set FOLL_PIN via pin_user_pages()
has been removed from the -mm tree. Its filename was
net-xdp-set-foll_pin-via-pin_user_pages.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: John Hubbard <jhubbard@nvidia.com>
Subject: net/xdp: set FOLL_PIN via pin_user_pages()
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.
In partial anticipation of this work, the net/xdp code was already calling
put_user_page() instead of put_page(). Therefore, in order to convert
from the get_user_pages()/put_page() model, to the
pin_user_pages()/put_user_page() model, the only change required here is
to change get_user_pages() to pin_user_pages().
Link: http://lkml.kernel.org/r/20200107224558.2362728-18-jhubbard@nvidia.com
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
net/xdp/xdp_umem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/xdp/xdp_umem.c~net-xdp-set-foll_pin-via-pin_user_pages
+++ a/net/xdp/xdp_umem.c
@@ -291,7 +291,7 @@ static int xdp_umem_pin_pages(struct xdp
return -ENOMEM;
down_read(¤t->mm->mmap_sem);
- npgs = get_user_pages(umem->address, umem->npgs,
+ npgs = pin_user_pages(umem->address, umem->npgs,
gup_flags | FOLL_LONGTERM, &umem->pgs[0], NULL);
up_read(¤t->mm->mmap_sem);
_
Patches currently in -mm which might be from jhubbard@nvidia.com are
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2020-01-31 23:18 [merged] net-xdp-set-foll_pin-via-pin_user_pages.patch removed from -mm tree akpm
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