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authorZhi Wang <[email protected]>2022-11-04 14:56:50 +0000
committerZhenyu Wang <[email protected]>2022-11-17 14:07:09 +0800
commit2d3bc8754360d0557faaa295a3b4404d0473a2d4 (patch)
treea682078c518b4fd30e51f52d9dc4cf8e8b4dd2d7
parenta34985dcacdf31892510571c29b38330272c76f4 (diff)
drm/i915/gvt: remove the vgpu->released and its sanity check
The life cycle of a vGPU, which is represented by a vfio_device, has been managed by the VFIO core logic. Remove the vgpu->released, which was used for a sanity check on the removal path of the vGPU instance. The sanity check has already been covered in the VFIO core logic. Cc: Zhenyu Wang <[email protected]> Cc: Kevin Tian <[email protected]> Cc: Jason Gunthorpe <[email protected]> Cc: [email protected] Suggested-by: Alex Williamson <[email protected]> Signed-off-by: Zhi Wang <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] Reviewed-by: Zhenyu Wang <[email protected]>
-rw-r--r--drivers/gpu/drm/i915/gvt/gvt.h2
-rw-r--r--drivers/gpu/drm/i915/gvt/kvmgt.c4
2 files changed, 0 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 705689e64011..0ca3001aa481 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -226,8 +226,6 @@ struct intel_vgpu {
unsigned long nr_cache_entries;
struct mutex cache_lock;
- atomic_t released;
-
struct kvm_page_track_notifier_node track_node;
#define NR_BKT (1 << 18)
struct hlist_head ptable[NR_BKT];
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index e3cd58946477..f48f763c84d1 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -785,7 +785,6 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
intel_gvt_activate_vgpu(vgpu);
- atomic_set(&vgpu->released, 0);
return 0;
}
@@ -807,9 +806,6 @@ static void intel_vgpu_close_device(struct vfio_device *vfio_dev)
if (!vgpu->attached)
return;
- if (atomic_cmpxchg(&vgpu->released, 0, 1))
- return;
-
intel_gvt_release_vgpu(vgpu);
debugfs_remove(debugfs_lookup(KVMGT_DEBUGFS_FILENAME, vgpu->debugfs));