Re: [PATCH 6/7] block: allow large discard requests

From: Matthew Wilcox
Date: Sat Aug 29 2009 - 22:50:29 EST

On Sat, Aug 29, 2009 at 10:49:02PM -0400, Mark Lord wrote:
> Pardon my cursory review, but I don't see where this
> patch set allows for more than a single extent/range
> of sectors per TRIM command.

It doesn't.

> If it still does not group many extents into a single TRIM,
> then it will be far to slow to be useful at all for SATA.

That depends on the firmware. I do have plans to group the extents,
but let's get something working before making it quick.

Matthew Wilcox Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
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