On Fri, Jul 17, 2015 at 02:53:07PM +0300, Kirill A. Shutemov wrote: > We rely on ->vm_ops == NULL to detect anonymous VMA but this check is not > always reliable: > > - MPX sets ->vm_ops on anonymous VMA; > > - many drivers don't set ->vm_ops. See for instance hpet_mmap(). > > This patchset makes vma_is_anonymous() more reliable and makes few > cleanups around the code. > > v2: > - drop broken patch; > - more cleanup for mpx code (Oleg); > - vma_is_anonymous() in create_huge_pmd() and wp_huge_pmd(); > > Kirill A. Shutemov (5): > mm: mark most vm_operations_struct const > x86, mpx: do not set ->vm_ops on mpx VMAs > mm: make sure all file VMAs have ->vm_ops set > mm: use vma_is_anonymous() in create_huge_pmd() and wp_huge_pmd() > mm, madvise: use vma_is_anonymous() to check for anon VMA > > Oleg Nesterov (1): > mm, mpx: add "vm_flags_t vm_flags" arg to do_mmap_pgoff() ping? -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>