111  * Array of pointers with lazy allocation of leaf pages.  Callers of
113  * serialize access to the array.
118 void *mthca_array_get(struct mthca_array *array, int index)  in mthca_array_get()  argument
122 	if (array->page_list[p].page)  in mthca_array_get()
123 		return array->page_list[p].page[index & MTHCA_ARRAY_MASK];  in mthca_array_get()
128 int mthca_array_set(struct mthca_array *array, int index, void *value)  in mthca_array_set()  argument
133 	if (!array->page_list[p].page)  in mthca_array_set()
134 		array->page_list[p].page = (void **) get_zeroed_page(GFP_ATOMIC);  in mthca_array_set()
136 	if (!array->page_list[p].page)  in mthca_array_set()
139 	array->page_list[p].page[index & MTHCA_ARRAY_MASK] = value;  in mthca_array_set()
140 	++array->page_list[p].used;  in mthca_array_set()
145 void mthca_array_clear(struct mthca_array *array, int index)  in mthca_array_clear()  argument
149 	if (--array->page_list[p].used == 0) {  in mthca_array_clear()
150 		free_page((unsigned long) array->page_list[p].page);  in mthca_array_clear()
151 		array->page_list[p].page = NULL;  in mthca_array_clear()
153 		array->page_list[p].page[index & MTHCA_ARRAY_MASK] = NULL;  in mthca_array_clear()
155 	if (array->page_list[p].used < 0)  in mthca_array_clear()
156 		pr_debug("Array %p index %d page %d with ref count %d < 0\n",  in mthca_array_clear()
157 			 array, index, p, array->page_list[p].used);  in mthca_array_clear()
160 int mthca_array_init(struct mthca_array *array, int nent)  in mthca_array_init()  argument
165 	array->page_list = kmalloc(npage * sizeof *array->page_list, GFP_KERNEL);  in mthca_array_init()
166 	if (!array->page_list)  in mthca_array_init()
170 		array->page_list[i].page = NULL;  in mthca_array_init()
171 		array->page_list[i].used = 0;  in mthca_array_init()
177 void mthca_array_cleanup(struct mthca_array *array, int nent)  in mthca_array_cleanup()  argument
182 		free_page((unsigned long) array->page_list[i].page);  in mthca_array_cleanup()
184 	kfree(array->page_list);  in mthca_array_cleanup()