Re: [00/41] Large Blocksize Support V7 (adds memmap support)

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On 09/19/2007 06:33 AM, Linus Torvalds wrote:


On Wed, 19 Sep 2007, Rene Herman wrote:



I do feel larger blocksizes continue to make sense in general though. Packet
writing on CD/DVD is a problem already today since the hardware needs 32K or
64K blocks and I'd expect to see more of these and similiar situations when
flash gets (even) more popular which it sort of inevitably is going to be.


.. that's what scatter-gather exists for.

What's so hard with just realizing that physical memory isn't contiguous?
It's why we have MMU's. It's why we have scatter-gather.
So if I understood that right, you'd suggest to deal with devices with larger physical blocksizes at some level above the current blocklayer.
Not familiar enough with either block or fs to be able to argue that effectively... 

Rene.

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