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KVM: convert slots_lock to a mutex

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Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Marcelo Tosatti
2009-12-23 14:35:26 -02:00
parent f656ce0185
commit 79fac95ecf
11 changed files with 39 additions and 39 deletions
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16
arch/x86/kvm/x86.c
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@@ -2208,14 +2208,14 @@ static int kvm_vm_ioctl_set_nr_mmu_pages(struct kvm *kvm,
if (kvm_nr_mmu_pages < KVM_MIN_ALLOC_MMU_PAGES)
return -EINVAL;
down_write(&kvm->slots_lock);
mutex_lock(&kvm->slots_lock);
spin_lock(&kvm->mmu_lock);
kvm_mmu_change_mmu_pages(kvm, kvm_nr_mmu_pages);
kvm->arch.n_requested_mmu_pages = kvm_nr_mmu_pages;
spin_unlock(&kvm->mmu_lock);
up_write(&kvm->slots_lock);
mutex_unlock(&kvm->slots_lock);
return 0;
}
@@ -2292,7 +2292,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
if (!aliases)
goto out;
down_write(&kvm->slots_lock);
mutex_lock(&kvm->slots_lock);
/* invalidate any gfn reference in case of deletion/shrinking */
memcpy(aliases, kvm->arch.aliases, sizeof(struct kvm_mem_aliases));
@@ -2328,7 +2328,7 @@ static int kvm_vm_ioctl_set_memory_alias(struct kvm *kvm,
r = 0;
out_unlock:
up_write(&kvm->slots_lock);
mutex_unlock(&kvm->slots_lock);
out:
return r;
}
@@ -2462,7 +2462,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
unsigned long is_dirty = 0;
unsigned long *dirty_bitmap = NULL;
down_write(&kvm->slots_lock);
mutex_lock(&kvm->slots_lock);
r = -EINVAL;
if (log->slot >= KVM_MEMORY_SLOTS)
@@ -2512,7 +2512,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
out_free:
vfree(dirty_bitmap);
out:
up_write(&kvm->slots_lock);
mutex_unlock(&kvm->slots_lock);
return r;
}
@@ -2625,7 +2625,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
sizeof(struct kvm_pit_config)))
goto out;
create_pit:
down_write(&kvm->slots_lock);
mutex_lock(&kvm->slots_lock);
r = -EEXIST;
if (kvm->arch.vpit)
goto create_pit_unlock;
@@ -2634,7 +2634,7 @@ long kvm_arch_vm_ioctl(struct file *filp,
if (kvm->arch.vpit)
r = 0;
create_pit_unlock:
up_write(&kvm->slots_lock);
mutex_unlock(&kvm->slots_lock);
break;
case KVM_IRQ_LINE_STATUS:
case KVM_IRQ_LINE: {