ksm_madvise 2610 arch/s390/mm/gmap.c if (ksm_madvise(vma, vma->vm_start, vma->vm_end, ksm_madvise 22 include/linux/ksm.h int ksm_madvise(struct vm_area_struct *vma, unsigned long start, ksm_madvise 117 mm/madvise.c error = ksm_madvise(vma, start, end, behavior, &new_flags); ksm_madvise 349 mm/mremap.c err = ksm_madvise(vma, old_addr, old_addr + old_len,