From 74793d583c233487f58a861c1381d9bf635e84c7 Mon Sep 17 00:00:00 2001 From: Joonyoung Shim Date: Mon, 30 Sep 2013 13:45:01 -0700 Subject: [PATCH] revert "mm/memory-hotplug: fix lowmem count overflow when offline pages" This reverts commit 8f3e21bf1d91 ("mm/memory-hotplug: fix lowmem count overflow when offline pages"). The fixed bug by commit 8f3e21b was fixed to another way by commit a813125947cb ("mm: correctly update zone->managed_pages"). That commit enhances memory_hotplug.c to adjust totalhigh_pages when hot-removing memory, for details please refer to: http://marc.info/?l=linux-mm&m=136957578620221&w=2 As a result, commit 8f3e21bf1d91 currently causes duplicated decreasing of totalhigh_pages, thus the revert. Signed-off-by: Joonyoung Shim Reviewed-by: Wanpeng Li Cc: Jiang Liu Cc: KOSAKI Motohiro Cc: Bartlomiej Zolnierkiewicz Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/page_alloc.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 0ee638f76ebe5..dd886fac451ab 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -6366,10 +6366,6 @@ __offline_isolated_pages(unsigned long start_pfn, unsigned long end_pfn) list_del(&page->lru); rmv_page_order(page); zone->free_area[order].nr_free--; -#ifdef CONFIG_HIGHMEM - if (PageHighMem(page)) - totalhigh_pages -= 1 << order; -#endif for (i = 0; i < (1 << order); i++) SetPageReserved((page+i)); pfn += (1 << order); -- 2.39.5