ioat_alloc_ring   389 drivers/dma/ioat/dma.h ioat_alloc_ring(struct dma_chan *c, int order, gfp_t flags);
ioat_alloc_ring   708 drivers/dma/ioat/init.c 	ring = ioat_alloc_ring(c, order, GFP_NOWAIT);