Hi Linus,
It's still the same topic branch as last merge window, but the name isn't
fitting all that well anymore :-)
Anyway here's a small pull for you to ponder, now that the big ones are
all through. It's been in -next almost the entire cycle, I've only done
some non-code rebases due to the -rc1 fumble and to fix some commit
message typos.
Christoph Hellwig also looked at these and aside from wanting to outright
remove it all didn't have objections.
topic/iomem-mmap-vs-gup-2021-05-03:
unexport follow_pfn
Follow-up to my pull from last merge window: kvm and vfio lost their
very unsafe use of follow_pfn, this appropriately marks up the very
last user for some userptr-as-buffer use-cases in media. There was
some resistance to outright removing it, maybe we can do this in a few
releases.
Cheers, Daniel
The following changes since commit 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b:
Linux 5.12-rc4 (2021-03-21 14:56:43 -0700)
are available in the Git repository at:
git://anongit.freedesktop.org/drm/drm tags/topic/iomem-mmap-vs-gup-2021-05-03
for you to fetch changes up to ac8b8400620a4b0d9ca903ee9ad440bec736f5fa:
mm: unexport follow_pfn (2021-04-08 16:54:38 +0200)
----------------------------------------------------------------
unexport follow_pfn
Follow-up to my pull from last merge window: kvm and vfio lost their
very unsafe use of follow_pfn, this appropriately marks up the very
last user for some userptr-as-buffer use-cases in media. There was
some resistance to outright removing it, maybe we can do this in a few
releases.
----------------------------------------------------------------
Daniel Vetter (3):
mm: Add unsafe_follow_pfn
media/videobuf1|2: Mark follow_pfn usage as unsafe
mm: unexport follow_pfn
drivers/media/common/videobuf2/frame_vector.c | 2 +-
drivers/media/v4l2-core/videobuf-dma-contig.c | 2 +-
include/linux/mm.h | 4 +--
mm/memory.c | 46 +++++++++++++++++----------
mm/nommu.c | 28 ++++++++++++----
security/Kconfig | 13 ++++++++
6 files changed, 68 insertions(+), 27 deletions(-)
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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