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[v2,3/3] mm,memory_hotplug: Remove unneeded declarations

Message ID 20210602091457.17772-4-osalvador@suse.de (mailing list archive)
State New, archived
Headers show
Series Memory hotplug locking cleanup | expand

Commit Message

Oscar Salvador June 2, 2021, 9:14 a.m. UTC
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(-)

Comments

David Hildenbrand June 2, 2021, 6:38 p.m. UTC | #1
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>
diff mbox series

Patch

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,