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From:   "Alastair D'Silva" <alastair@au1.ibm.com>
To:     alastair@d-silva.org
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        David Hildenbrand <david@redhat.com>,
        Oscar Salvador <osalvador@suse.com>,
        Michal Hocko <mhocko@suse.com>,
        Pavel Tatashin <pasha.tatashin@soleen.com>,
        Wei Yang <richard.weiyang@gmail.com>,
        Arun KS <arunks@codeaurora.org>, Qian Cai <cai@lca.pw>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@kernel.org>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Jiri Kosina <jkosina@suse.cz>,
        Mukesh Ojha <mojha@codeaurora.org>,
        Mike Rapoport <rppt@linux.vnet.ibm.com>,
        Baoquan He <bhe@redhat.com>,
        Logan Gunthorpe <logang@deltatee.com>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH 3/5] mm: Don't manually decrement num_poisoned_pages
Date:   Mon, 17 Jun 2019 14:36:29 +1000
In-Reply-To: <20190617043635.13201-1-alastair@au1.ibm.com>
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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 66a99da9b11b..e2402937efe4 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>
@@ -771,7 +773,7 @@ static void clear_hwpoisoned_pages(struct page *memmap,
 
 	for (i = map_offset; 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