shmem_file 415 mm/khugepaged.c if (shmem_file(vma->vm_file) || shmem_file 1504 mm/khugepaged.c bool is_shmem = shmem_file(file); shmem_file 1976 mm/khugepaged.c if (shmem_file(vma->vm_file) shmem_file 122 mm/memfd.c if (shmem_file(file))