sys_setpriority   208 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_setpriority, sys_setpriority)
sys_setpriority   700 include/linux/syscalls.h asmlinkage long sys_setpriority(int which, int who, int niceval);
sys_setpriority   447 include/uapi/asm-generic/unistd.h __SYSCALL(__NR_setpriority, sys_setpriority)
sys_setpriority   447 tools/include/uapi/asm-generic/unistd.h __SYSCALL(__NR_setpriority, sys_setpriority)