sys_madvise
return sys_madvise(start, len_in, behavior);
asmlinkage long sys_madvise(unsigned long start, size_t len, int behavior);
__SYSCALL(__NR_madvise, sys_madvise)
__SYSCALL(__NR_madvise, sys_madvise)
ret = sys_madvise(ptr, size, MADV_DONTNEED);
ret = sys_madvise(ptr, size, MADV_DONTNEED);
ret = sys_madvise(ptr, size, MADV_DONTNEED);
ret = sys_madvise(ptr, size, MADV_DONTNEED);
ret = sys_madvise(ptr, size, MADV_DONTNEED);
ret = sys_madvise(ptr, size, MADV_DONTNEED);
ret = sys_madvise(ptr, size, MADV_DONTNEED);
ret = sys_madvise(ptr, size, MADV_RANDOM);