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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>
This commit is contained in:
Dan Williams 2008-07-17 17:59:56 -07:00
parent 0839875e0c
commit c7141d005a
1 changed files with 2 additions and 2 deletions
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4
drivers/dma/iop-adma.c
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@ -373,8 +373,8 @@ iop_adma_alloc_slots(struct iop_adma_chan *iop_chan, int num_slots,
if (!retry++) if (!retry++)
goto retry; goto retry;
/* try to free some slots if the allocation fails */ /* perform direct reclaim if the allocation fails */
tasklet_schedule(&iop_chan->irq_tasklet); __iop_adma_slot_cleanup(iop_chan);
return NULL; return NULL;
} }