106  * Array of pointers with lazy allocation of leaf pages.  Callers of
108  * serialize access to the array.
113 void *mthca_array_get(struct mthca_array *array, int index)  in mthca_array_get()  argument
117 	if (array->page_list[p].page)  in mthca_array_get()
118 		return array->page_list[p].page[index & MTHCA_ARRAY_MASK];  in mthca_array_get()
123 int mthca_array_set(struct mthca_array *array, int index, void *value)  in mthca_array_set()  argument
128 	if (!array->page_list[p].page)  in mthca_array_set()
129 		array->page_list[p].page = (void **) get_zeroed_page(GFP_ATOMIC);  in mthca_array_set()
131 	if (!array->page_list[p].page)  in mthca_array_set()
134 	array->page_list[p].page[index & MTHCA_ARRAY_MASK] = value;  in mthca_array_set()
135 	++array->page_list[p].used;  in mthca_array_set()
140 void mthca_array_clear(struct mthca_array *array, int index)  in mthca_array_clear()  argument
144 	if (--array->page_list[p].used == 0) {  in mthca_array_clear()
145 		free_page((unsigned long) array->page_list[p].page);  in mthca_array_clear()
146 		array->page_list[p].page = NULL;  in mthca_array_clear()
148 		array->page_list[p].page[index & MTHCA_ARRAY_MASK] = NULL;  in mthca_array_clear()
150 	if (array->page_list[p].used < 0)  in mthca_array_clear()
151 		pr_debug("Array %p index %d page %d with ref count %d < 0\n",  in mthca_array_clear()
152 			 array, index, p, array->page_list[p].used);  in mthca_array_clear()
155 int mthca_array_init(struct mthca_array *array, int nent)  in mthca_array_init()  argument
160 	array->page_list = kmalloc_array(npage, sizeof(*array->page_list),  in mthca_array_init()
162 	if (!array->page_list)  in mthca_array_init()
166 		array->page_list[i].page = NULL;  in mthca_array_init()
167 		array->page_list[i].used = 0;  in mthca_array_init()
173 void mthca_array_cleanup(struct mthca_array *array, int nent)  in mthca_array_cleanup()  argument
178 		free_page((unsigned long) array->page_list[i].page);  in mthca_array_cleanup()
180 	kfree(array->page_list);  in mthca_array_cleanup()