package/kernel/mac80211/patches/013-mm-backport-get_user_pages.patch

   1 --- a/backport-include/linux/mm.h
   2 +++ b/backport-include/linux/mm.h
   3 @@ -39,8 +39,20 @@ static inline
   4  long backport_get_user_pages_locked(unsigned long start, unsigned long nr_pages,
   5                     int write, int force, struct page **pages, int *locked)
   6  {
   7 +#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,4,168))
   8         return get_user_pages_locked(current, current->mm, start, nr_pages,
   9                     write, force, pages, locked);
  10 +#else
  11 +       int flags = 0;
  12 +
  13 +       if (write)
  14 +               flags |= FOLL_WRITE;
  15 +       if (force)
  16 +               flags |= FOLL_FORCE;
  17 +
  18 +       return get_user_pages_locked(current, current->mm, start, nr_pages,
  19 +                   flags, pages, locked);
  20 +#endif
  21  }
  22  #define get_user_pages_locked LINUX_BACKPORT(get_user_pages_locked)
  23
  24 @@ -48,8 +60,20 @@ static inline
  25  long backport_get_user_pages_unlocked(unsigned long start, unsigned long nr_pages,
  26                                       int write, int force, struct page **pages)
  27  {
  28 +#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,4,168))
  29         return get_user_pages_unlocked(current, current->mm, start,  nr_pages,
  30                     write, force, pages);
  31 +#else
  32 +       int flags = 0;
  33 +
  34 +       if (write)
  35 +               flags |= FOLL_WRITE;
  36 +       if (force)
  37 +               flags |= FOLL_FORCE;
  38 +
  39 +       return get_user_pages_unlocked(current, current->mm, start,  nr_pages,
  40 +                   pages, flags);
  41 +#endif
  42  }
  43  #define get_user_pages_unlocked LINUX_BACKPORT(get_user_pages_unlocked)
  44  #endif
  45 @@ -60,8 +84,20 @@ long backport_get_user_pages(unsigned lo
  46                             int write, int force, struct page **pages,
  47                             struct vm_area_struct **vmas)
  48  {
  49 +#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,4,168))
  50         return get_user_pages(current, current->mm, start,  nr_pages,
  51                     write, force, pages, vmas);
  52 +#else
  53 +       int flags = 0;
  54 +
  55 +       if (write)
  56 +               flags |= FOLL_WRITE;
  57 +       if (force)
  58 +               flags |= FOLL_FORCE;
  59 +
  60 +       return get_user_pages(current, current->mm, start,  nr_pages,
  61 +                   flags, pages, vmas);
  62 +#endif
  63  }
  64  #define get_user_pages LINUX_BACKPORT(get_user_pages)
  65  #endif