Alex Williamson 7cb671e7a3 vfio/type1: Reduce repetitive calls in vfio_pin_pages_remote() ... vfio_pin_pages_remote() is typically called to iterate over a range of memory. Testing CAP_IPC_LOCK is relatively expensive, so it makes sense to push it up to the caller, which can then repeatedly call vfio_pin_pages_remote() using that value. This can show nearly a 20% improvement on the worst case path through VFIO_IOMMU_MAP_DMA with contiguous page mapping disabled. Testing RLIMIT_MEMLOCK is much more lightweight, but we bring it along on the same principle and it does seem to show a marginal improvement. Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>		2017-04-18 15:01:15 -06:00
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mdev	vfio/mdev: Use a module softdep for vfio_mdev	2017-02-08 13:13:25 -07:00
pci	vfio-pci: Handle error from pci_iomap	2017-01-04 08:34:39 -07:00
platform	vfio_platform: Updated to use vfio_set_irqs_validate_and_prepare()	2016-11-17 08:33:20 -07:00
Kconfig	vfio: Fix build break when SPAPR_TCE_IOMMU=n	2017-02-08 13:13:25 -07:00
Makefile	vfio: Mediated device Core driver	2016-11-17 08:24:48 -07:00
vfio_iommu_spapr_tce.c	vfio/spapr_tce: Check kzalloc() return when preregistering memory	2017-04-11 13:40:09 -06:00
vfio_iommu_type1.c	vfio/type1: Reduce repetitive calls in vfio_pin_pages_remote()	2017-04-18 15:01:15 -06:00
vfio_spapr_eeh.c	drivers/vfio: Support EEH error injection	2015-05-12 20:33:35 +10:00
vfio.c	vfio: Rework group release notifier warning	2017-03-21 13:19:09 -06:00
virqfd.c	vfio: Split virqfd into a separate module for vfio bus drivers	2015-03-17 08:33:38 -06:00