linux-kernel - [PATCH] pmem: use TestClearPageHWPoison() directly

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Message-ID: <20221125115308.104059-1-wangkefeng.wang@huawei.com>
Date:   Fri, 25 Nov 2022 19:53:08 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Dan Williams <dan.j.williams@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        Ira Weiny <ira.weiny@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        <linux-kernel@...r.kernel.org>
CC:     Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH] pmem: use TestClearPageHWPoison() directly

Add TESTSCFLAG_FALSE(HWPoison, hwpoison) for HWPoison in
page flags, then drop privite test_and_clear_pmem_poison().

Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 drivers/nvdimm/pmem.c      |  2 +-
 drivers/nvdimm/pmem.h      | 12 ------------
 include/linux/page-flags.h |  1 +
 3 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 3c63dc2cdc81..1fa6b3980221 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -80,7 +80,7 @@ static void pmem_mkpage_present(struct pmem_device *pmem, phys_addr_t offset,
 		 * here since we're in the driver I/O path and
 		 * outstanding I/O requests pin the dev_pagemap.
 		 */
-		if (test_and_clear_pmem_poison(page))
+		if (TestClearPageHWPoison(page))
 			clear_mce_nospec(pfn);
 	}
 }
diff --git a/drivers/nvdimm/pmem.h b/drivers/nvdimm/pmem.h
index 392b0b38acb9..6f5c2f35b93a 100644
--- a/drivers/nvdimm/pmem.h
+++ b/drivers/nvdimm/pmem.h
@@ -1,7 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVDIMM_PMEM_H__
 #define __NVDIMM_PMEM_H__
-#include <linux/page-flags.h>
 #include <linux/badblocks.h>
 #include <linux/memremap.h>
 #include <linux/types.h>
@@ -33,15 +32,4 @@ long __pmem_direct_access(struct pmem_device *pmem, pgoff_t pgoff,
 		long nr_pages, enum dax_access_mode mode, void **kaddr,
 		pfn_t *pfn);
 
-#ifdef CONFIG_MEMORY_FAILURE
-static inline bool test_and_clear_pmem_poison(struct page *page)
-{
-	return TestClearPageHWPoison(page);
-}
-#else
-static inline bool test_and_clear_pmem_poison(struct page *page)
-{
-	return false;
-}
-#endif
 #endif /* __NVDIMM_PMEM_H__ */
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index e42c55a7e012..5e877b6c7b90 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -582,6 +582,7 @@ extern bool take_page_off_buddy(struct page *page);
 extern bool put_page_back_buddy(struct page *page);
 #else
 PAGEFLAG_FALSE(HWPoison, hwpoison)
+TESTSCFLAG_FALSE(HWPoison, hwpoison)
 #define __PG_HWPOISON 0
 #endif
 
-- 
2.35.3