On Fri 28-09-18 20:12:33, John Hubbard wrote:
>  static inline void release_user_pages(struct page **pages,
> -                                     unsigned long npages)
> +                                     unsigned long npages,
> +                                     bool set_dirty)
>  {
> -       while (npages)
> -               put_user_page(pages[--npages]);
> +       if (set_dirty)
> +               release_user_pages_dirty(pages, npages);
> +       else
> +               release_user_pages_basic(pages, npages);
> +}

Is there a good reason to have this with set_dirty argument? Generally bool
arguments are not great for readability (or greppability for that matter).
Also in this case callers can just as easily do:
        if (set_dirty)
                release_user_pages_dirty(...);
        else
                release_user_pages(...);

And furthermore it makes the code author think more whether he needs
set_page_dirty() or set_page_dirty_lock(), rather than just passing 'true'
and hoping the function magically does the right thing for him.

                                                                Honza
-- 
Jan Kara <j...@suse.com>
SUSE Labs, CR

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