Commit c7141d00 authored Jul 17, 2008 by Dan Williams

iop_adma: directly reclaim descriptors on allocation failure

Force callers that trigger an "out of descriptors" condition to run the
cleanup loop directly. Alleviates the requirement to have soft-irqs
enabled when polling for a descriptor in async_xor.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>

parent 0839875e

drivers/dma/iop-adma.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -373,8 +373,8 @@ iop_adma_alloc_slots(struct iop_adma_chan *iop_chan, int num_slots,
		if (!retry++)
		goto retry;

		/* try to free some slots if the allocation fails */
		tasklet_schedule(&iop_chan->irq_tasklet);
		/* perform direct reclaim if the allocation fails */
		__iop_adma_slot_cleanup(iop_chan);

		return NULL;
		}