linux-kernel - [PATCH 1/2] mm: memory-failure: kill soft_offline_free

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Message-ID: <20220819033402.156519-1-wangkefeng.wang@huawei.com>
Date:   Fri, 19 Aug 2022 11:34:01 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Naoya Horiguchi <naoya.horiguchi@....com>,
        Miaohe Lin <linmiaohe@...wei.com>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH 1/2] mm: memory-failure: kill soft_offline_free_page()

Open-code the page_handle_poison() into soft_offline_page() and
kill unneeded soft_offline_free_page().

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 mm/memory-failure.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index e48f6f6a259d..1a7d6548ccb2 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -2511,16 +2511,6 @@ static int soft_offline_in_use_page(struct page *page)
 	return __soft_offline_page(page);
 }
 
-static int soft_offline_free_page(struct page *page)
-{
-	int rc = 0;
-
-	if (!page_handle_poison(page, true, false))
-		rc = -EBUSY;
-
-	return rc;
-}
-
 static void put_ref_page(struct page *page)
 {
 	if (page)
@@ -2598,7 +2588,7 @@ int soft_offline_page(unsigned long pfn, int flags)
 	if (ret > 0) {
 		ret = soft_offline_in_use_page(page);
 	} else if (ret == 0) {
-		if (soft_offline_free_page(page) && try_again) {
+		if (!page_handle_poison(page, true, false) && try_again) {
 			try_again = false;
 			flags &= ~MF_COUNT_INCREASED;
 			goto retry;
-- 
2.35.3