Re: [PATCH] x86/mm/64: Rename the argument 'size' as 'nr_pages' in register_page_bootmem_memmap

From: Ingo Molnar
Date: Tue Oct 24 2017 - 09:29:12 EST



* Baoquan He <bhe@xxxxxxxxxx> wrote:

> For register_page_bootmem_memmap(), the 3rd argument 'size' indicates
> the number of pages which are inside the memory section, not a size.
>
> Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
> ---
> arch/x86/mm/init_64.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
> index 048fbe8fc274..f5aa0d7c4cd1 100644
> --- a/arch/x86/mm/init_64.c
> +++ b/arch/x86/mm/init_64.c
> @@ -1426,10 +1426,10 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
>
> #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
> void register_page_bootmem_memmap(unsigned long section_nr,
> - struct page *start_page, unsigned long size)
> + struct page *start_page, unsigned long nr_pages)
> {
> unsigned long addr = (unsigned long)start_page;
> - unsigned long end = (unsigned long)(start_page + size);
> + unsigned long end = (unsigned long)(start_page + nr_pages);
> unsigned long next;
> pgd_t *pgd;
> p4d_t *p4d;

This doesn't build on x86-64 allyesconfig:

arch/x86/mm/init_64.c: In function âregister_page_bootmem_memmapâ:
arch/x86/mm/init_64.c:1438:15: error: ânr_pagesâ redeclared as different kind of symbol
arch/x86/mm/init_64.c:1429:46: note: previous definition of ânr_pagesâ was here

Also note that I improved the changelog (see below), could you please pick those
changes up for a v2 submission?

Thanks,

Ingo

==================>