Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   "Alastair D'Silva" <alastair@au1.ibm.com>
To:     alastair@d-silva.org
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Oscar Salvador <osalvador@suse.de>,
        Michal Hocko <mhocko@suse.com>,
        Dan Williams <dan.j.williams@intel.com>,
        Mike Rapoport <rppt@linux.ibm.com>,
        David Hildenbrand <david@redhat.com>,
        Wei Yang <richardw.yang@linux.intel.com>,
        Qian Cai <cai@lca.pw>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] mm: Don't manually decrement num_poisoned_pages
Date:   Tue, 27 Aug 2019 15:36:54 +1000
In-Reply-To: <20190827053656.32191-1-alastair@au1.ibm.com>
References: <20190827053656.32191-1-alastair@au1.ibm.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Message-Id: <20190827053656.32191-2-alastair@au1.ibm.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Alastair D'Silva <alastair@d-silva.org>

Use the function written to do it instead.

Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
---
 mm/sparse.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index 72f010d9bff5..e41917a7e844 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -11,6 +11,8 @@
 #include <linux/export.h>
 #include <linux/spinlock.h>
 #include <linux/vmalloc.h>
+#include <linux/swap.h>
+#include <linux/swapops.h>
 
 #include "internal.h"
 #include <asm/dma.h>
@@ -898,7 +900,7 @@ static void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
 
 	for (i = 0; i < nr_pages; i++) {
 		if (PageHWPoison(&memmap[i])) {
-			atomic_long_sub(1, &num_poisoned_pages);
+			num_poisoned_pages_dec();
 			ClearPageHWPoison(&memmap[i]);
 		}
 	}
-- 
2.21.0