On Thu, 6 Nov 2008, James Bottomley wrote:
The way to do this properly would be to run a chequerboard of partials,
but this would effectively have trim region tracking done in the block
layer ... is this worth it?
By the way, the latest (from 2 days ago) version of the Thin
Provisioning proposal is here:
http://www.t10.org/ftp/t10/document.08/08-149r4.pdf
I skimmed it but don't see any update implying that trim might be
ineffective if we align wrongly ... where is this?
I think we should be content to declare such devices 'broken'.
They have to keep track of individual sectors _anyway_, and dropping
information for small discard requests is just careless.
--
dwmw2
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