[PATCH 0/2] pci sysfs file iomem revoke support

Daniel Vetter daniel.vetter at ffwll.ch
Thu Feb 4 16:58:29 UTC 2021


Hi all,

This is a revised version of patch 12 from my series to lock down some
follow_pfn vs VM_SPECIAL races:

https://lore.kernel.org/dri-devel/CAKwvOdnSrsnTgPEuQJyaOTSkTP2dR9208Y66HQG_h1e2LKfqtw@mail.gmail.com/

Stephen reported an issue on HAVE_PCI_LEGACY platforms which this patch
set tries to address. Previous patches are all still in linux-next.

Stephen, would be awesome if you can give this a spin.

Björn/Greg, review on the first patch is needed, I think that's the
cleanest approach from all the options I discussed with Greg in this
thread:

https://lore.kernel.org/dri-devel/CAKMK7uGrdDrbtj0OyzqQc0CGrQwc2F3tFJU9vLfm2jjufAZ5YQ@mail.gmail.com/

Cheers, Daniel

Cc: Stephen Rothwell <sfr at canb.auug.org.au>
Cc: Jason Gunthorpe <jgg at ziepe.ca>
Cc: Kees Cook <keescook at chromium.org>
Cc: Dan Williams <dan.j.williams at intel.com>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: John Hubbard <jhubbard at nvidia.com>
Cc: Jérôme Glisse <jglisse at redhat.com>
Cc: Jan Kara <jack at suse.cz>
Cc: Dan Williams <dan.j.williams at intel.com>
Cc: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
Cc: linux-mm at kvack.org
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-samsung-soc at vger.kernel.org
Cc: linux-media at vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas at google.com>
Cc: linux-pci at vger.kernel.org

Daniel Vetter (2):
  PCI: also set up legacy files only after sysfs init
  PCI: Revoke mappings like devmem

 drivers/pci/pci-sysfs.c | 11 +++++++++++
 drivers/pci/proc.c      |  1 +
 2 files changed, 12 insertions(+)

-- 
2.30.0



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