The only caller wants to get a pointer to the struct iommu_group associated with the VFIO group file. Instead of returning the group ID then searching sysfs for that string to get the struct iommu_group just directly return the iommu_group pointer already held by the vfio_group struct. It already has a safe lifetime due to the struct file kref, the vfio_group and thus the iommu_group cannot be destroyed while the group file is open. Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Yi Liu <yi.l.liu@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/3-v3-f7729924a7ea+25e33-vfio_kvm_no_group_jgg@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> |
||
---|---|---|
.. | ||
async_pf.c | ||
async_pf.h | ||
binary_stats.c | ||
coalesced_mmio.c | ||
coalesced_mmio.h | ||
dirty_ring.c | ||
eventfd.c | ||
irqchip.c | ||
Kconfig | ||
kvm_main.c | ||
kvm_mm.h | ||
Makefile.kvm | ||
pfncache.c | ||
vfio.c | ||
vfio.h |