Messages in this thread | | | Date | Wed, 15 Oct 2003 21:51:34 -0700 | From | "David S. Miller" <> | Subject | Re: [SCSI] Set max_phys_segments to sg_tablesize |
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On Wed, 15 Oct 2003 15:37:22 +0300 <mika.penttila@kolumbus.fi> wrote:
> >It does matter if the driver can't cope with it. > > But this fix may hurt performance with well behaving drivers in > iommu systems. It's better to fix the broken drivers I think.
That's absolutely correct.
If you add Herbert's change, you will effectively turn off all of the IOMMU coalescing benefits we designed into the block layer. Please don't apply it, fix the broken drivers instead. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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