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	vfio/mdev: Re-order sysfs attribute creation	2018-06-08 10:24:30 -06:00
pci	vfio/pci: Make IGD support a configurable option	2018-06-18 16:39:50 -06:00
platform	vfio: platform: Fix using devices in PM Domains	2018-06-08 10:24:37 -06:00
Kconfig	vfio: Fix build break when SPAPR_TCE_IOMMU=n	2017-02-08 13:13:25 -07:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
vfio.c	vfio: use match_string() helper	2018-06-08 10:24:33 -06:00
vfio_iommu_spapr_tce.c	vfio/spapr: Add cond_resched() for huge updates	2017-10-02 12:39:11 -06:00
vfio_iommu_type1.c	vfio: Use get_user_pages_longterm correctly	2018-06-30 13:58:09 -06:00
vfio_spapr_eeh.c	drivers/vfio: Support EEH error injection	2015-05-12 20:33:35 +10:00
virqfd.c	fs: add new vfs_poll and file_can_poll helpers	2018-05-26 09:16:44 +02:00