Messages in this thread | | | Date | Tue, 10 Nov 2009 16:14:31 +0100 | From | Jens Axboe <> | Subject | Re: [RFC, PATCH] cfq-iosched: remove redundant queuing detection code |
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On Tue, Nov 10 2009, Corrado Zoccolo wrote: > The core block layer already has code to detect presence of command > queuing devices. We convert cfq to use that instead of re-doing the > computation.
There's is the major difference that the CFQ variant is dynamic and the block layer one is not. This change came from Aaron some time ago IIRC, see commit 45333d5. It's a bit of a chicken and egg problem.
-- Jens Axboe
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