[PATCH v4 08/22] powerpc/kvm/book3s: switch from raw_spin_*lock to arch_spin_lock.

[Aneesh Kumar K.V]

These functions can get called in realmode. Hence use low level
arch_spin_lock which is safe to be called in realmode.

Cc: Suraj Jitindar Singh <sjitindarsi...@gmail.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
---
 arch/powerpc/kvm/book3s_hv_rm_mmu.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c 
b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 220305454c23..03f8347de48b 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -948,7 +948,7 @@ static long kvmppc_do_h_page_init_zero(struct kvm_vcpu 
*vcpu,
                return ret;
 
        /* Check if we've been invalidated */
-       raw_spin_lock(&kvm->mmu_lock.rlock);
+       arch_spin_lock(&kvm->mmu_lock.rlock.raw_lock);
        if (mmu_notifier_retry(kvm, mmu_seq)) {
                ret = H_TOO_HARD;
                goto out_unlock;
@@ -960,7 +960,7 @@ static long kvmppc_do_h_page_init_zero(struct kvm_vcpu 
*vcpu,
        kvmppc_update_dirty_map(memslot, dest >> PAGE_SHIFT, PAGE_SIZE);
 
 out_unlock:
-       raw_spin_unlock(&kvm->mmu_lock.rlock);
+       arch_spin_unlock(&kvm->mmu_lock.rlock.raw_lock);
        return ret;
 }
 
@@ -984,7 +984,7 @@ static long kvmppc_do_h_page_init_copy(struct kvm_vcpu 
*vcpu,
                return ret;
 
        /* Check if we've been invalidated */
-       raw_spin_lock(&kvm->mmu_lock.rlock);
+       arch_spin_lock(&kvm->mmu_lock.rlock.raw_lock);
        if (mmu_notifier_retry(kvm, mmu_seq)) {
                ret = H_TOO_HARD;
                goto out_unlock;
@@ -996,7 +996,7 @@ static long kvmppc_do_h_page_init_copy(struct kvm_vcpu 
*vcpu,
        kvmppc_update_dirty_map(dest_memslot, dest >> PAGE_SHIFT, PAGE_SIZE);
 
 out_unlock:
-       raw_spin_unlock(&kvm->mmu_lock.rlock);
+       arch_spin_unlock(&kvm->mmu_lock.rlock.raw_lock);
        return ret;
 }
 
-- 
2.26.2