Dan Williams 669ab0b210 async_tx: fix handling of the "out of descriptor" condition in async_xor ... Ensure forward progress is made when a dmaengine driver is unable to allocate an xor descriptor by breaking the dependency chain with async_tx_quisce() and issue any pending descriptors. Tested with iop-adma by setting device->max_xor = 2 to force multiple calls to device_prep_dma_xor for each call to async_xor and limiting the descriptor slot pool to 5. Discovered that the minimum descriptor pool size for iop-adma is 2 * iop_chan_xor_slot_cnt(device->max_xor) + 1. Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2008-07-17 17:59:55 -07:00
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async_memcpy.c	dmaengine: ack to flags: make use of the unused bits in the 'ack' field	2008-04-17 13:25:54 -07:00
async_memset.c	async_tx: fix async_memset compile error	2008-07-08 11:57:55 -07:00
async_tx.c	async_tx: list_for_each_entry_rcu() cleanup	2008-07-17 17:59:47 -07:00
async_xor.c	async_tx: fix handling of the "out of descriptor" condition in async_xor	2008-07-17 17:59:55 -07:00
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