On Thu, 22 Feb 2018 17:11:28 +0800 Baoquan He <b...@redhat.com> wrote:
> It's used to record how many memory sections are marked as present
> during system boot up, and will be used in the later patch.
> --- a/mm/sparse.c
> +++ b/mm/sparse.c
> @@ -202,6 +202,7 @@ static inline int next_present_section_nr(int section_nr)
> (section_nr <= __highest_present_section_nr)); \
> section_nr = next_present_section_nr(section_nr))
> +static int nr_present_sections;
I think this could be __initdata.
A nice comment explaining why it exists would be nice.