Re: [PATCH] lib/int_sqrt.c: Optimize square root function
From: Joe Perches
Date: Thu Jul 20 2017 - 07:53:00 EST
On Thu, 2017-07-20 at 13:24 +0200, Peter Zijlstra wrote:
[]
> + m = 1UL << ((fls(x) + 1) & ~1UL);
maybe
#if BITS_PER_LONG == 64
m = 1UL << ((fls64(x) + 1) & ~1UL);
#else
m = 1UL << ((fls(x) + 1) & ~1UL);
#endif