* Alexander van Heukelum <heukelum@xxxxxxxxxxxxx> wrote: > The for_each_cpu_mask loop is used quite often in the kernel. It makes > use of two functions: first_cpu and next_cpu. This patch changes > for_each_cpu_mask to use only the latter. Because next_cpu finds the > next eligible cpu _after_ the given one, the iteration variable has to > be initialized to -1 and next_cpu has to be called with this value > before the first iteration. An x86_64 defconfig kernel (from > sched/latest) is about 2500 bytes smaller with this patch applied: > > text data bss dec hex filename > 6222517 917952 749932 7890401 7865e1 vmlinux.orig > 6219922 917952 749932 7887806 785bbe vmlinux > > The same size reduction is seen for defconfig+MAXSMP > > text data bss dec hex filename > 6241772 2563968 1492716 10298456 9d2458 vmlinux.orig > 6239211 2563968 1492716 10295895 9d1a57 vmlinux applied for testing, thanks Alexander. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
