Re: [Xen-devel] [PATCH 1/2] make fls() and ffs() consistent across architectures

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.01.15 at 15:38, <andrew.cooper3@xxxxxxxxxx> wrote:
> As for the x86 asm itself, what about
> http://lkml.kernel.org/r/5058741E020000780009C014@xxxxxxxxxxxxxxxxxxxx ?
> It would appear that the same optimisation is relevant for Xens __ffs()

For find_first_set_bit() (and perhaps also __scanbit()) you mean?
Indeed, and I'm sure I meant to pull it over - and then forgot after
it got accepted. Will do that now.

Jan


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