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mirror of https://github.com/edk2-porting/linux-next.git synced 2025-01-07 05:04:04 +08:00
linux-next/include
John Hubbard 420c2091b6 mm/gup: introduce pin_user_pages_locked()
Patch series "mm/gup: introduce pin_user_pages_locked(), use it in frame_vector.c", v2.

This adds yet one more pin_user_pages*() variant, and uses that to
convert mm/frame_vector.c.

With this, along with maybe 20 or 30 other recent patches in various
trees, we are close to having the relevant gup call sites
converted--with the notable exception of the bio/block layer.

This patch (of 2):

Introduce pin_user_pages_locked(), which is nearly identical to
get_user_pages_locked() except that it sets FOLL_PIN and rejects
FOLL_GET.

As with other pairs of get_user_pages*() and pin_user_pages() API calls,
it's prudent to assert that FOLL_PIN is *not* set in the
get_user_pages*() call, so add that as part of this.

[jhubbard@nvidia.com: v2]
  Link: http://lkml.kernel.org/r/20200531234131.770697-2-jhubbard@nvidia.com

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Link: http://lkml.kernel.org/r/20200531234131.770697-1-jhubbard@nvidia.com
Link: http://lkml.kernel.org/r/20200527223243.884385-1-jhubbard@nvidia.com
Link: http://lkml.kernel.org/r/20200527223243.884385-2-jhubbard@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-08 11:05:56 -07:00
..
acpi
asm-generic powerpc updates for 5.8 2020-06-05 12:39:30 -07:00
clocksource
crypto
drm drm: remove drm specific kmap_atomic code 2020-06-04 19:06:22 -07:00
dt-bindings Char/Misc driver patches for 5.8-rc1 2020-06-07 10:59:32 -07:00
keys keys: Implement update for the big_key type 2020-06-02 17:22:31 +01:00
kunit
kvm
linux mm/gup: introduce pin_user_pages_locked() 2020-06-08 11:05:56 -07:00
math-emu
media media updates for v5.8-rc1 2020-06-03 20:59:38 -07:00
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
pcmcia
ras
rdma dynamic_debug: add an option to enable dynamic debug for modules only 2020-06-08 11:05:56 -07:00
scsi SCSI misc on 20200605 2020-06-05 15:11:50 -07:00
soc pci-v5.8-changes 2020-06-06 11:01:58 -07:00
sound
target
trace AFS Changes 2020-06-05 16:26:36 -07:00
uapi Char/Misc driver patches for 5.8-rc1 2020-06-07 10:59:32 -07:00
vdso
video
xen