[Xen-devel] [PATCH 1/4] mm: Remove dependency on CONFIG_FLATMEM from online_page()

[Daniel Kiper <dkiper@xxxxxxxxxxxx>]

Memory hotplug code strictly depends on CONFIG_SPARSEMEM.
It means that code depending on CONFIG_FLATMEM in online_page()
is never compiled. Remove it because it is not needed anymore.

Signed-off-by: Daniel Kiper <dkiper@xxxxxxxxxxxx>
---
 mm/memory_hotplug.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 9ca1d60..a807ccb 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -374,10 +374,6 @@ void online_page(struct page *page)
                totalhigh_pages++;
 #endif
 
-#ifdef CONFIG_FLATMEM
-       max_mapnr = max(pfn, max_mapnr);
-#endif
-
        ClearPageReserved(page);
        init_page_count(page);
        __free_page(page);
-- 
1.5.6.5

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