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SubjectRe: SFFDC and blksize_size
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On Mon, 2003-11-10 at 15:09 +0100, Jens Axboe wrote:
> On Fri, Nov 07 2003, Simon Haynes wrote:
> >
> > I have been writing a block driver for SSFDC compliant SMC cards. This stuff
> > allocates 16k blocks. When I get requests the transfers are split into the
> > size I specifty in the blksize_size{MAJOR] array. It sems that most things
>
> Sounds like a bad way to do it. It's much better to prevent builds of
> bigger requests than you can handle in one go. You don't mention what
> kernel you are using, but both 2.4 and 2.6 can do this for you.

The problem is the other way round -- he wants request merging, and he's
achieving this by setting the block size higher.... and observing a
crash when he sets his block size higher than PAGE_SIZE.


--
dwmw2

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