* [RFCLUE4] scatterlist changes
@ 2008-05-15 16:51 William D Waddington
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From: William D Waddington @ 2008-05-15 16:51 UTC (permalink / raw)
To: linux-kernel
Hi,
I have just tripped over the scatterlist changes in my out-of-tree
drivers. I'll deal with it. When the API stabilizes...
It does bring to mind a simple question: why limit the scatterlist
to a single page, or require a multiple-page list to be dealt with
as individual pages?
Is this just to avoid vmalloc use? I don't see anything that requires
a scatterlist to be in physically contiguous memory (at a quick glance
anyway) other than perhaps a preference for the initial allocation
mechanism. (My actual IOPB list for the DMA hardware is a different
matter entirely, but I don't _think_ I'm confusing the two).
Thanks,
Bill
--
--------------------------------------------
William D Waddington
Bainbridge Island, WA, USA
william.waddington@beezmo.com
--------------------------------------------
"Even bugs...are unexpected signposts on
the long road of creativity..." - Ken Burtch
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