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SubjectRe: [PATCH v2 3/3] mm,memory_hotplug: Remove unneeded declarations
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On 02.06.21 11:14, Oscar Salvador wrote:
> include/linux/memory_hotplug.h has the following declarations:
>
> extern int zone_grow_free_lists(struct zone *zone, unsigned long new_nr_pages);
> extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages);
> extern int add_one_highpage(struct page *page, int pfn, int bad_ppro);
>
> These declarations were added by the following commit:
>
> commit 3947be1969a9ce455ec30f60ef51efb10e4323d1
> Author: Dave Hansen <haveblue@us.ibm.com>
> Date: Sat Oct 29 18:16:54 2005 -0700
>
> [PATCH] memory hotplug: sysfs and add/remove functions
>
> It seems that zone_grow_free_lists() and zone_grow_waitqueues() were
> never used, and add_one_highpage() was always declared as static in
> arch/i386/mm/init.c and later on in arch/x86/mm/init_32.c, and was
> later removed in:
>
> commit 5e7ccf8635c93b493f7d378a57ce300fbe1484e8
> Author: Jiang Liu <liuj97@gmail.com>
> Date: Mon Apr 29 15:07:12 2013 -0700
>
> mm/x86: use free_highmem_page() to free highmem pages into buddy system
>
> So remove these declarations.
>
> Signed-off-by: Oscar Salvador <osalvador@suse.de>
> ---
> include/linux/memory_hotplug.h | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
> index 0d837ce6ec11..9a19e97d4f1a 100644
> --- a/include/linux/memory_hotplug.h
> +++ b/include/linux/memory_hotplug.h
> @@ -80,9 +80,6 @@ struct range mhp_get_pluggable_range(bool need_mapping);
> /*
> * Zone resizing functions
> */
> -extern int zone_grow_free_lists(struct zone *zone, unsigned long new_nr_pages);
> -extern int zone_grow_waitqueues(struct zone *zone, unsigned long nr_pages);
> -extern int add_one_highpage(struct page *page, int pfn, int bad_ppro);
> extern void adjust_present_page_count(struct zone *zone, long nr_pages);
> /* VM interface that may be used by firmware interface */
> extern int mhp_init_memmap_on_memory(unsigned long pfn, unsigned long nr_pages,
>

Right, that's a blast from the past. Thanks!

Reviewed-by: David Hildenbrand <david@redhat.com>

--
Thanks,

David / dhildenb

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