40 	return hash_32(handle.resource, VMCI_RESOURCE_HASH_BITS);  in vmci_resource_hash()
44  * Gets a resource (if one exists) matching given handle from the hash table.
49 	struct vmci_resource *r, *resource = NULL;  in vmci_resource_lookup()  local
56 		u32 rid = r->handle.resource;  in vmci_resource_lookup()
59 		    rid == handle.resource &&  in vmci_resource_lookup()
62 			resource = r;  in vmci_resource_lookup()
68 	return resource;  in vmci_resource_lookup()
72  * Find an unused resource ID and return it. The first
75  * Returns VMCI resource id on success, VMCI_INVALID_ID on failure.
85 	 * Generate a unique resource ID.  Keep on trying until we wrap around  in vmci_resource_find_id()
107 int vmci_resource_add(struct vmci_resource *resource,  in vmci_resource_add()  argument
117 	if (handle.resource == VMCI_INVALID_ID) {  in vmci_resource_add()
118 		handle.resource = vmci_resource_find_id(handle.context,  in vmci_resource_add()
120 		if (handle.resource == VMCI_INVALID_ID) {  in vmci_resource_add()
129 	resource->handle = handle;  in vmci_resource_add()
130 	resource->type = resource_type;  in vmci_resource_add()
131 	INIT_HLIST_NODE(&resource->node);  in vmci_resource_add()
132 	kref_init(&resource->kref);  in vmci_resource_add()
133 	init_completion(&resource->done);  in vmci_resource_add()
135 	idx = vmci_resource_hash(resource->handle);  in vmci_resource_add()
136 	hlist_add_head_rcu(&resource->node, &vmci_resource_table.entries[idx]);  in vmci_resource_add()
145 void vmci_resource_remove(struct vmci_resource *resource)  in vmci_resource_remove()  argument
147 	struct vmci_handle handle = resource->handle;  in vmci_resource_remove()
151 	/* Remove resource from hash table. */  in vmci_resource_remove()
155 		if (vmci_handle_is_equal(r->handle, resource->handle)) {  in vmci_resource_remove()
164 	vmci_resource_put(resource);  in vmci_resource_remove()
165 	wait_for_completion(&resource->done);  in vmci_resource_remove()
172 	struct vmci_resource *r, *resource = NULL;  in vmci_resource_by_handle()  local
180 		resource = vmci_resource_get(r);  in vmci_resource_by_handle()
185 	return resource;  in vmci_resource_by_handle()
189  * Get a reference to given resource.
191 struct vmci_resource *vmci_resource_get(struct vmci_resource *resource)  in vmci_resource_get()  argument
193 	kref_get(&resource->kref);  in vmci_resource_get()
195 	return resource;  in vmci_resource_get()
200 	struct vmci_resource *resource =  in vmci_release_resource()  local
203 	/* Verify the resource has been unlinked from hash table */  in vmci_release_resource()
204 	WARN_ON(!hlist_unhashed(&resource->node));  in vmci_release_resource()
206 	/* Signal that container of this resource can now be destroyed */  in vmci_release_resource()
207 	complete(&resource->done);  in vmci_release_resource()
211  * Resource's release function will get called if last reference.
213  * can increment the count again (it's gone from the resource hash
216 int vmci_resource_put(struct vmci_resource *resource)  in vmci_resource_put()  argument
222 	return kref_put(&resource->kref, vmci_release_resource) ?  in vmci_resource_put()
226 struct vmci_handle vmci_resource_handle(struct vmci_resource *resource)  in vmci_resource_handle()  argument
228 	return resource->handle;  in vmci_resource_handle()