[PATCH 0/2] ioatdma: ring buffer management updates

Dan Williams
2010-05-11T18:55:36Z

Two patches targeted at the next merge window affecting the ioatdma
driver (used when NET_DMA and/or ASYNC_TX_DMA+MD_RAID456 are enabled).
According to perf the split locking update improves cpu utilization by a
few percentage points.

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Dan Williams (2):
ioat2,3: convert to producer/consumer locking
ioat: convert to circ_buf

drivers/dma/ioat/dma.h | 1
drivers/dma/ioat/dma_v2.c | 184 +++++++++++++++++++++++----------------------
drivers/dma/ioat/dma_v2.h | 33 +++-----
drivers/dma/ioat/dma_v3.c | 117 +++++++++--------------------
4 files changed, 142 insertions(+), 193 deletions(-)