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authorMarcelo Tosatti <mtosatti@redhat.com>2009-12-23 14:35:26 -0200
committerMarcelo Tosatti <mtosatti@redhat.com>2010-03-01 12:35:45 -0300
commit79fac95ecfa3969aab8119d37ccd7226165f933a (patch)
tree4103169c7fd2b7fb1ba95dae2db6b3f365476b9d /virt/kvm/eventfd.c
parentf656ce0185cabbbb0cf96877306879661297c7ad (diff)
downloadlinaro-lsk-79fac95ecfa3969aab8119d37ccd7226165f933a.tar.gz
KVM: convert slots_lock to a mutex
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt/kvm/eventfd.c')
-rw-r--r--virt/kvm/eventfd.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index 315a586ec4d..486c604365d 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -508,7 +508,7 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
else
p->wildcard = true;
- down_write(&kvm->slots_lock);
+ mutex_lock(&kvm->slots_lock);
/* Verify that there isnt a match already */
if (ioeventfd_check_collision(kvm, p)) {
@@ -524,12 +524,12 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
list_add_tail(&p->list, &kvm->ioeventfds);
- up_write(&kvm->slots_lock);
+ mutex_unlock(&kvm->slots_lock);
return 0;
unlock_fail:
- up_write(&kvm->slots_lock);
+ mutex_unlock(&kvm->slots_lock);
fail:
kfree(p);
@@ -551,7 +551,7 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
if (IS_ERR(eventfd))
return PTR_ERR(eventfd);
- down_write(&kvm->slots_lock);
+ mutex_lock(&kvm->slots_lock);
list_for_each_entry_safe(p, tmp, &kvm->ioeventfds, list) {
bool wildcard = !(args->flags & KVM_IOEVENTFD_FLAG_DATAMATCH);
@@ -571,7 +571,7 @@ kvm_deassign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args)
break;
}
- up_write(&kvm->slots_lock);
+ mutex_unlock(&kvm->slots_lock);
eventfd_ctx_put(eventfd);