linux-kernel - [PATCH mm-unstable 4/8] mm/memory-failure: convert free_raw_hwp

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Message-Id: <20230112204608.80136-5-sidhartha.kumar@oracle.com>
Date:   Thu, 12 Jan 2023 14:46:04 -0600
From:   Sidhartha Kumar <sidhartha.kumar@...cle.com>
To:     linux-kernel@...r.kernel.org, linux-mm@...ck.org
Cc:     akpm@...ux-foundation.org, linmiaohe@...wei.com,
        naoya.horiguchi@....com, willy@...radead.org,
        Sidhartha Kumar <sidhartha.kumar@...cle.com>
Subject: [PATCH mm-unstable 4/8] mm/memory-failure: convert free_raw_hwp_pages() to folios

Change free_raw_hwp_pages() to folio_free_raw_hwp(), converts two users
of hugetlb specific page macro users to their folio equivalents.

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@...cle.com>
---
 mm/memory-failure.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 205272c64f37..d5c828328e32 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1766,23 +1766,23 @@ static int hugetlb_set_page_hwpoison(struct page *hpage, struct page *page)
 	return ret;
 }
 
-static unsigned long free_raw_hwp_pages(struct page *hpage, bool move_flag)
+static unsigned long folio_free_raw_hwp(struct folio *folio, bool move_flag)
 {
 	/*
-	 * HPageVmemmapOptimized hugepages can't be freed because struct
+	 * hugetlb_vmemmap_optimized hugepages can't be freed because struct
 	 * pages for tail pages are required but they don't exist.
 	 */
-	if (move_flag && HPageVmemmapOptimized(hpage))
+	if (move_flag && folio_test_hugetlb_vmemmap_optimized(folio))
 		return 0;
 
 	/*
-	 * HPageRawHwpUnreliable hugepages shouldn't be unpoisoned by
+	 * hugetlb_raw_hwp_unreliable hugepages shouldn't be unpoisoned by
 	 * definition.
 	 */
-	if (HPageRawHwpUnreliable(hpage))
+	if (folio_test_hugetlb_raw_hwp_unreliable(folio))
 		return 0;
 
-	return __free_raw_hwp_pages(hpage, move_flag);
+	return __free_raw_hwp_pages(&folio->page, move_flag);
 }
 
 void folio_clear_hugetlb_hwpoison(struct folio *folio)
@@ -1790,7 +1790,7 @@ void folio_clear_hugetlb_hwpoison(struct folio *folio)
 	if (folio_test_hugetlb_raw_hwp_unreliable(folio))
 		return;
 	folio_clear_hwpoison(folio);
-	free_raw_hwp_pages(&folio->page, true);
+	folio_free_raw_hwp(folio, true);
 }
 
 /*
@@ -1929,7 +1929,7 @@ static inline int try_memory_failure_hugetlb(unsigned long pfn, int flags, int *
 	return 0;
 }
 
-static inline unsigned long free_raw_hwp_pages(struct page *hpage, bool flag)
+static inline unsigned long folio_free_raw_hwp(struct folio *folio, bool flag)
 {
 	return 0;
 }
@@ -2336,6 +2336,7 @@ core_initcall(memory_failure_init);
 int unpoison_memory(unsigned long pfn)
 {
 	struct page *page;
+	struct folio *folio;
 	struct page *p;
 	int ret = -EBUSY;
 	unsigned long count = 1;
@@ -2348,6 +2349,7 @@ int unpoison_memory(unsigned long pfn)
 
 	p = pfn_to_page(pfn);
 	page = compound_head(p);
+	folio = page_folio(p);
 
 	mutex_lock(&mf_mutex);
 
@@ -2389,7 +2391,7 @@ int unpoison_memory(unsigned long pfn)
 	if (!ret) {
 		if (PageHuge(p)) {
 			huge = true;
-			count = free_raw_hwp_pages(page, false);
+			count = folio_free_raw_hwp(folio, false);
 			if (count == 0) {
 				ret = -EBUSY;
 				goto unlock_mutex;
@@ -2405,7 +2407,7 @@ int unpoison_memory(unsigned long pfn)
 	} else {
 		if (PageHuge(p)) {
 			huge = true;
-			count = free_raw_hwp_pages(page, false);
+			count = folio_free_raw_hwp(folio, false);
 			if (count == 0) {
 				ret = -EBUSY;
 				put_page(page);
-- 
2.39.0