Re: [PATCH 1/3] X86: Optimise fls(), ffs() and fls64()

[David Howells]

Matthew Wilcox <matthew@xxxxxx> wrote:

> I don't know whether we can get it /documented/, but the architect I
> asked said "We'll never get away with reverting to the older behavior,
> so in essence the architecture is set to not overwrite."

Does that mean we can rely on it?  Linus?

David
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