103 	struct idr_layer *new;  in idr_layer_alloc()  local
116 	new = kmem_cache_zalloc(idr_layer_cache, gfp_mask | __GFP_NOWARN);  in idr_layer_alloc()
117 	if (new)  in idr_layer_alloc()
118 		return new;  in idr_layer_alloc()
126 		new = __this_cpu_read(idr_preload_head);  in idr_layer_alloc()
127 		if (new) {  in idr_layer_alloc()
128 			__this_cpu_write(idr_preload_head, new->ary[0]);  in idr_layer_alloc()
130 			new->ary[0] = NULL;  in idr_layer_alloc()
133 		if (new)  in idr_layer_alloc()
134 			return new;  in idr_layer_alloc()
202 		struct idr_layer *new;  in __idr_pre_get()  local
203 		new = kmem_cache_zalloc(idr_layer_cache, gfp_mask);  in __idr_pre_get()
204 		if (new == NULL)  in __idr_pre_get()
206 		move_to_free_list(idp, new);  in __idr_pre_get()
232 	struct idr_layer *p, *new;  in sub_alloc()  local
281 			new = idr_layer_alloc(gfp_mask, layer_idr);  in sub_alloc()
282 			if (!new)  in sub_alloc()
284 			new->layer = l-1;  in sub_alloc()
285 			new->prefix = id & idr_layer_prefix_mask(new->layer);  in sub_alloc()
286 			rcu_assign_pointer(p->ary[m], new);  in sub_alloc()
301 	struct idr_layer *p, *new;  in idr_get_empty_slot()  local
330 		if (!(new = idr_layer_alloc(gfp_mask, layer_idr))) {  in idr_get_empty_slot()
336 			for (new = p; p && p != idp->top; new = p) {  in idr_get_empty_slot()
338 				new->ary[0] = NULL;  in idr_get_empty_slot()
339 				new->count = 0;  in idr_get_empty_slot()
340 				bitmap_clear(new->bitmap, 0, IDR_SIZE);  in idr_get_empty_slot()
341 				__move_to_free_list(idp, new);  in idr_get_empty_slot()
346 		new->ary[0] = p;  in idr_get_empty_slot()
347 		new->count = 1;  in idr_get_empty_slot()
348 		new->layer = layers-1;  in idr_get_empty_slot()
349 		new->prefix = id & idr_layer_prefix_mask(new->layer);  in idr_get_empty_slot()
351 			__set_bit(0, new->bitmap);  in idr_get_empty_slot()
352 		p = new;  in idr_get_empty_slot()
436 		struct idr_layer *new;  in idr_preload()  local
439 		new = kmem_cache_zalloc(idr_layer_cache, gfp_mask);  in idr_preload()
441 		if (!new)  in idr_preload()
445 		new->ary[0] = __this_cpu_read(idr_preload_head);  in idr_preload()
446 		__this_cpu_write(idr_preload_head, new);  in idr_preload()