Don't register a sigkill callback with vhost_task when creating NX hugepage
recovery threads now that said callback is optional. In addition to
removing what is effectively dead code, not registering a sigkill "handler"
also guards against improper use of __vhost_task_wake().
Signed-off-by: Sean Christopherson <sea...@google.com>
---
arch/x86/kvm/mmu/mmu.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 6e838cb6c9e1..ace302137533 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -7677,10 +7677,6 @@ static void kvm_recover_nx_huge_pages(struct kvm *kvm)
srcu_read_unlock(&kvm->srcu, rcu_idx);
}
-static void kvm_nx_huge_page_recovery_worker_kill(void *data)
-{
-}
-
static bool kvm_nx_huge_page_recovery_worker(void *data)
{
struct kvm *kvm = data;
@@ -7713,8 +7709,7 @@ static int kvm_mmu_start_lpage_recovery(struct once *once)
struct vhost_task *nx_thread;
kvm->arch.nx_huge_page_last = get_jiffies_64();
- nx_thread = vhost_task_create(kvm_nx_huge_page_recovery_worker,
- kvm_nx_huge_page_recovery_worker_kill,
+ nx_thread = vhost_task_create(kvm_nx_huge_page_recovery_worker, NULL,
kvm, "kvm-nx-lpage-recovery");
if (IS_ERR(nx_thread))
--
2.51.0.268.g9569e192d0-goog
