Since x86-64 and x32 use the same set of sched_XXX system call interface:
[hjl@gnu-6 linux-stable]$ grep sched_
arch/x86/entry/syscalls/syscall_64.tbl
24 common sched_yield sys_sched_yield
142 common sched_setparam sys_sched_setparam
143 common sched_getparam sys_sched_getparam
144 common sched_setscheduler sys_sched_setscheduler
145 common sched_getscheduler sys_sched_getscheduler
146 common sched_get_priority_max sys_sched_get_priority_max
147 common sched_get_priority_min sys_sched_get_priority_min
148 common sched_rr_get_interval sys_sched_rr_get_interval
203 common sched_setaffinity sys_sched_setaffinity
204 common sched_getaffinity sys_sched_getaffinity
314 common sched_setattr sys_sched_setattr
315 common sched_getattr sys_sched_getattr
[hjl@gnu-6 linux-stable]$
__cpu_mask should be unsigned long long, instead of unsigned long, for
x32. This patch adds __CPU_MASK_TYPE so that each architecture can
define the proper type for __cpu_mask.