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Subject[FYI PATCH] i915: kvmgt: the KVM mmu_lock is now an rwlock
Date
Adjust the KVMGT page tracking callbacks.

Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Cc: intel-gvt-dev@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 60f1a386dd06..b4348256ae95 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1703,7 +1703,7 @@ static int kvmgt_page_track_add(unsigned long handle, u64 gfn)
return -EINVAL;
}

- spin_lock(&kvm->mmu_lock);
+ write_lock(&kvm->mmu_lock);

if (kvmgt_gfn_is_write_protected(info, gfn))
goto out;
@@ -1712,7 +1712,7 @@ static int kvmgt_page_track_add(unsigned long handle, u64 gfn)
kvmgt_protect_table_add(info, gfn);

out:
- spin_unlock(&kvm->mmu_lock);
+ write_unlock(&kvm->mmu_lock);
srcu_read_unlock(&kvm->srcu, idx);
return 0;
}
@@ -1737,7 +1737,7 @@ static int kvmgt_page_track_remove(unsigned long handle, u64 gfn)
return -EINVAL;
}

- spin_lock(&kvm->mmu_lock);
+ write_lock(&kvm->mmu_lock);

if (!kvmgt_gfn_is_write_protected(info, gfn))
goto out;
@@ -1746,7 +1746,7 @@ static int kvmgt_page_track_remove(unsigned long handle, u64 gfn)
kvmgt_protect_table_del(info, gfn);

out:
- spin_unlock(&kvm->mmu_lock);
+ write_unlock(&kvm->mmu_lock);
srcu_read_unlock(&kvm->srcu, idx);
return 0;
}
@@ -1772,7 +1772,7 @@ static void kvmgt_page_track_flush_slot(struct kvm *kvm,
struct kvmgt_guest_info *info = container_of(node,
struct kvmgt_guest_info, track_node);

- spin_lock(&kvm->mmu_lock);
+ write_lock(&kvm->mmu_lock);
for (i = 0; i < slot->npages; i++) {
gfn = slot->base_gfn + i;
if (kvmgt_gfn_is_write_protected(info, gfn)) {
@@ -1781,7 +1781,7 @@ static void kvmgt_page_track_flush_slot(struct kvm *kvm,
kvmgt_protect_table_del(info, gfn);
}
}
- spin_unlock(&kvm->mmu_lock);
+ write_unlock(&kvm->mmu_lock);
}

static bool __kvmgt_vgpu_exist(struct intel_vgpu *vgpu, struct kvm *kvm)
--
2.26.2
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