- /* Dump shared memory only if mapped from an anonymous file. */
- if (vma->vm_flags & VM_SHARED)
- return vma->vm_file->f_path.dentry->d_inode->i_nlink == 0;
+ /* By default, dump shared memory if mapped from an anonymous file. */
+ if (vma->vm_flags & VM_SHARED) {
+ if (vma->vm_file->f_path.dentry->d_inode->i_nlink == 0)
+ return test_bit(MMF_DUMP_ANON_SHARED, &mm_flags);
+ else
+ return test_bit(MMF_DUMP_MAPPED_SHARED, &mm_flags);
+ }