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Eliminate the use of Giant from vm_object_reference().

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This commit is contained in:
alc 2003-09-15 05:58:27 +00:00
parent 20920b207d
commit 38e47abc4a
1 changed files with 11 additions and 11 deletions
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22
sys/vm/vm_object.c
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@ -361,22 +361,22 @@ vm_object_allocate(objtype_t type, vm_pindex_t size)
void
vm_object_reference(vm_object_t object)
{
struct vnode *vp;
int flags;
if (object == NULL)
return;
if (object != kernel_object &&
object != kmem_object)
mtx_lock(&Giant);
VM_OBJECT_LOCK(object);
object->ref_count++;
VM_OBJECT_UNLOCK(object);
if (object->type == OBJT_VNODE) {
while (vget((struct vnode *) object->handle, LK_RETRY, curthread)) {
printf("vm_object_reference: delay in getting object\n");
}
}
if (object != kernel_object &&
object != kmem_object)
mtx_unlock(&Giant);
vp = object->handle;
VI_LOCK(vp);
VM_OBJECT_UNLOCK(object);
for (flags = LK_INTERLOCK; vget(vp, flags, curthread);
flags = 0)
printf("vm_object_reference: delay in vget\n");
} else
VM_OBJECT_UNLOCK(object);
}
/*