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Date:	Wed, 20 May 2015 23:42:05 +0800
From:	Herbert Xu <>
To:	Ard Biesheuvel <>
Cc:	Theodore Ts'o <>,
	Steffen Klassert <>,
	Jaegeuk Kim <>,
	"David S. Miller" <>,
	"" <>,,
	"" <>,,,
Subject: Re: [PATCH] crypto: allow to assign gfp_t for __crypto_alloc_tfm

On Wed, May 20, 2015 at 05:30:14PM +0200, Ard Biesheuvel wrote:
> However, it's quite a can of worms you're opening here. Speed is
> easily quantified, and it may even be feasible to introduce some kind
> of boottime benchmark to select the fastest implementation available
> (like already exists for xor and raid6, for instance).
> @Herbert: was something like this ever proposed? And would you
> consider merging it if it were implemented adequately?

Up until now static priorities have been sufficient in selecting
the best implementation.  However, if you can show us a case where
a given implementation is slower on one host but faster on another
then sure we can add a run-time test and priority adjustment for it.

Email: Herbert Xu <>
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