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

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Matthew Wilcox wrote:
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.
..

In this situation, it's more a case of making it *not sucky slow*
than getting to the point where we think about making it "quick".

One extent at a time is glacial.

Cheers

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