[patch 155/158] mm/memory_hotplug.c: remove __online_page_set_limits()

[akpm@linux-foundation.org]

From: Souptick Joarder <jrdr.linux@gmail.com>
Subject: mm/memory_hotplug.c: remove __online_page_set_limits()

__online_page_set_limits() is a dummy function - remove it and all callers.

Link: http://lkml.kernel.org/r/8e1bc9d3b492f6bde16e95ebc1dee11d6aefabd7.1567889743.git.jrdr.linux@gmail.com
Link: http://lkml.kernel.org/r/854db2cf8145d9635249c95584d9a91fd774a229.1567889743.git.jrdr.linux@gmail.com
Link: http://lkml.kernel.org/r/9afe6c5a18158f3884a6b302ac2c772f3da49ccc.1567889743.git.jrdr.linux@gmail.com
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/hv/hv_balloon.c        |    1 -
 drivers/xen/balloon.c          |    1 -
 include/linux/memory_hotplug.h |    2 --
 mm/memory_hotplug.c            |    5 -----
 4 files changed, 9 deletions(-)

--- a/drivers/hv/hv_balloon.c~mm-memory_hotplugc-remove-__online_page_set_limits
+++ a/drivers/hv/hv_balloon.c
@@ -680,7 +680,6 @@ static void hv_page_online_one(struct hv
 		__ClearPageOffline(pg);
 
 	/* This frame is currently backed; online the page. */
-	__online_page_set_limits(pg);
 	generic_online_page(pg, 0);
 
 	lockdep_assert_held(&dm_device.ha_lock);
--- a/drivers/xen/balloon.c~mm-memory_hotplugc-remove-__online_page_set_limits
+++ a/drivers/xen/balloon.c
@@ -374,7 +374,6 @@ static void xen_online_page(struct page
 	mutex_lock(&balloon_mutex);
 	for (i = 0; i < size; i++) {
 		p = pfn_to_page(start_pfn + i);
-		__online_page_set_limits(p);
 		balloon_append(p);
 	}
 	mutex_unlock(&balloon_mutex);
--- a/include/linux/memory_hotplug.h~mm-memory_hotplugc-remove-__online_page_set_limits
+++ a/include/linux/memory_hotplug.h
@@ -106,8 +106,6 @@ extern void generic_online_page(struct p
 extern int set_online_page_callback(online_page_callback_t callback);
 extern int restore_online_page_callback(online_page_callback_t callback);
 
-extern void __online_page_set_limits(struct page *page);
-
 extern int try_online_node(int nid);
 
 extern int arch_add_memory(int nid, u64 start, u64 size,
--- a/mm/memory_hotplug.c~mm-memory_hotplugc-remove-__online_page_set_limits
+++ a/mm/memory_hotplug.c
@@ -598,11 +598,6 @@ int restore_online_page_callback(online_
 }
 EXPORT_SYMBOL_GPL(restore_online_page_callback);
 
-void __online_page_set_limits(struct page *page)
-{
-}
-EXPORT_SYMBOL_GPL(__online_page_set_limits);
-
 void generic_online_page(struct page *page, unsigned int order)
 {
 	kernel_map_pages(page, 1 << order, 1);
_