Jason Gunthorpe bb94b55af3 vfio: Use get_user_pages_longterm correctly ... The patch noted in the fixes below converted get_user_pages_fast() to get_user_pages_longterm(), however the two calls differ in a few ways. First _fast() is documented to not require the mmap_sem, while _longterm() is documented to need it. Hold the mmap sem as required. Second, _fast accepts an 'int write' while _longterm uses 'unsigned int gup_flags', so the expression '!!(prot & IOMMU_WRITE)' is only working by luck as FOLL_WRITE is currently == 0x1. Use the expected FOLL_WRITE constant instead. Fixes: 94db151dc8 ("vfio: disable filesystem-dax page pinning") Cc: <stable@vger.kernel.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>		2018-06-30 13:58:09 -06:00
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mdev
pci
platform
Kconfig
Makefile
vfio_iommu_spapr_tce.c
vfio_iommu_type1.c	vfio: Use get_user_pages_longterm correctly	2018-06-30 13:58:09 -06:00
vfio_spapr_eeh.c
vfio.c
virqfd.c