Re: problem with blk_queue_bounce_limit()

David S. Miller
2003-06-07T07:11:57Z

From: David Mosberger <davidm@napali.hpl.hp.com>
Date: Sat, 7 Jun 2003 00:20:46 -0700

>>>>> On Fri, 06 Jun 2003 23:44:01 -0700 (PDT), "David S. Miller" <davem@redhat.com> said:

DaveM> This sounds all very dramatic, but try as I might, all I
DaveM> find is three places where PCI_DMA_BUS_IS_PHYS is used:

DaveM> Fix your grep,

What am I missing?

Sorry, I was meaning to mention BIO_VMERGE_BOUNDARY which works in
concert with PCI_DMA_BUS_IS_PHYS. You really have to set it
accurately to get the most out of the block layer's ability to
take advantage of IOMMUs.