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    SubjectRe: [PATCH 1/7] [I/OAT] Push pending transactions to hardware more frequently
    Hi!

    > Every 20 descriptors turns out to be to few append commands with
    > newer/faster CPUs. Pushing every 4 still cuts down on MMIO writes to an
    > acceptable level without letting the DMA engine run out of work.
    >
    > Signed-off-by: Chris Leech <christopher.leech@intel.com>
    > ---
    >
    > drivers/dma/ioatdma.c | 4 ++--
    > 1 files changed, 2 insertions(+), 2 deletions(-)
    >
    > diff --git a/drivers/dma/ioatdma.c b/drivers/dma/ioatdma.c
    > index dbd4d6c..be4fdd7 100644
    > --- a/drivers/dma/ioatdma.c
    > +++ b/drivers/dma/ioatdma.c
    > @@ -310,7 +310,7 @@ static dma_cookie_t do_ioat_dma_memcpy(s
    > list_splice_init(&new_chain, ioat_chan->used_desc.prev);
    >
    > ioat_chan->pending += desc_count;
    > - if (ioat_chan->pending >= 20) {
    > + if (ioat_chan->pending >= 4) {
    > append = 1;
    > ioat_chan->pending = 0;
    > }
    > @@ -818,7 +818,7 @@ static void __devexit ioat_remove(struct
    > }
    >
    > /* MODULE API */
    > -MODULE_VERSION("1.7");
    > +MODULE_VERSION("1.9");
    > MODULE_LICENSE("GPL");
    > MODULE_AUTHOR("Intel Corporation");

    Huh, two version bumps for... ONE ONE-LINER :-).

    Could we get rid of embedded version? It helps no one.

    --
    Thanks for all the (sleeping) penguins.
    -
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