> CVSROOT: /cvs > Module name: src > Changes by: t...@cvs.openbsd.org 2017/08/18 10:53:02 > > Modified files: > sys/arch/amd64/amd64: vm_machdep.c > sys/arch/i386/i386: vm_machdep.c > > Log message: > We just need arc4random() for kernel stack random bias (modulo bios happens > with arc4random() % N when N is not a power of 2, which is why we normally > use arc4random_uniform(N), but PAGE_SIZE is always going to be a power of 2. > And to make it clear, use bitwise AND rather than %.) > > ok deraadt@ >
This avoids the cost of two non-const modulo operations.
