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From: Oscar Salvador <osalvador@suse.de>
To: akpm@linux-foundation.org
Cc: mhocko@suse.com, linux-mm@kvack.org, mike.kravetz@oracle.com,
	david@redhat.com, aneesh.kumar@linux.vnet.ibm.com,
	naoya.horiguchi@nec.com, linux-kernel@vger.kernel.org,
	Oscar Salvador <osalvador@suse.de>,
	Oscar Salvador <osalvador@suse.com>
Subject: [PATCH v4 07/15] mm,hwpoison: Kill put_hwpoison_page
Date: Thu, 16 Jul 2020 14:38:01 +0200	[thread overview]
Message-ID: <20200716123810.25292-8-osalvador@suse.de> (raw)
In-Reply-To: <20200716123810.25292-1-osalvador@suse.de>

After commit 4e41a30c6d50 ("mm: hwpoison: adjust for new thp refcounting"),
put_hwpoison_page got reduced to a put_page.
Let us just use put_page instead.

Signed-off-by: Oscar Salvador <osalvador@suse.com>
---
 include/linux/mm.h  |  1 -
 mm/memory-failure.c | 30 +++++++++++++++---------------
 2 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 919bcab54c26..9d1c8540fdaf 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3008,7 +3008,6 @@ extern int memory_failure(unsigned long pfn, int flags);
 extern void memory_failure_queue(unsigned long pfn, int flags);
 extern void memory_failure_queue_kick(int cpu);
 extern int unpoison_memory(unsigned long pfn);
-#define put_hwpoison_page(page)	put_page(page)
 extern int sysctl_memory_failure_early_kill;
 extern int sysctl_memory_failure_recovery;
 extern void shake_page(struct page *p, int access);
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 48feb45047f7..0b7d9769cf29 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1144,7 +1144,7 @@ static int memory_failure_hugetlb(unsigned long pfn, int flags)
 		pr_err("Memory failure: %#lx: just unpoisoned\n", pfn);
 		num_poisoned_pages_dec();
 		unlock_page(head);
-		put_hwpoison_page(head);
+		put_page(head);
 		return 0;
 	}
 
@@ -1336,7 +1336,7 @@ int memory_failure(unsigned long pfn, int flags)
 					pfn);
 			if (TestClearPageHWPoison(p))
 				num_poisoned_pages_dec();
-			put_hwpoison_page(p);
+			put_page(p);
 			return -EBUSY;
 		}
 		unlock_page(p);
@@ -1389,14 +1389,14 @@ int memory_failure(unsigned long pfn, int flags)
 		pr_err("Memory failure: %#lx: just unpoisoned\n", pfn);
 		num_poisoned_pages_dec();
 		unlock_page(p);
-		put_hwpoison_page(p);
+		put_page(p);
 		return 0;
 	}
 	if (hwpoison_filter(p)) {
 		if (TestClearPageHWPoison(p))
 			num_poisoned_pages_dec();
 		unlock_page(p);
-		put_hwpoison_page(p);
+		put_page(p);
 		return 0;
 	}
 
@@ -1630,9 +1630,9 @@ int unpoison_memory(unsigned long pfn)
 	}
 	unlock_page(page);
 
-	put_hwpoison_page(page);
+	put_page(page);
 	if (freeit && !(pfn == my_zero_pfn(0) && page_count(p) == 1))
-		put_hwpoison_page(page);
+		put_page(page);
 
 	return 0;
 }
@@ -1690,7 +1690,7 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags)
 		/*
 		 * Try to free it.
 		 */
-		put_hwpoison_page(page);
+		put_page(page);
 		shake_page(page, 1);
 
 		/*
@@ -1699,7 +1699,7 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags)
 		ret = __get_any_page(page, pfn, 0);
 		if (ret == 1 && !PageLRU(page)) {
 			/* Drop page reference which is from __get_any_page() */
-			put_hwpoison_page(page);
+			put_page(page);
 			pr_info("soft_offline: %#lx: unknown non LRU page type %lx (%pGp)\n",
 				pfn, page->flags, &page->flags);
 			return -EIO;
@@ -1722,7 +1722,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
 	lock_page(hpage);
 	if (PageHWPoison(hpage)) {
 		unlock_page(hpage);
-		put_hwpoison_page(hpage);
+		put_page(hpage);
 		pr_info("soft offline: %#lx hugepage already poisoned\n", pfn);
 		return -EBUSY;
 	}
@@ -1733,7 +1733,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
 	 * get_any_page() and isolate_huge_page() takes a refcount each,
 	 * so need to drop one here.
 	 */
-	put_hwpoison_page(hpage);
+	put_page(hpage);
 	if (!ret) {
 		pr_info("soft offline: %#lx hugepage failed to isolate\n", pfn);
 		return -EBUSY;
@@ -1782,7 +1782,7 @@ static int __soft_offline_page(struct page *page, int flags)
 	wait_on_page_writeback(page);
 	if (PageHWPoison(page)) {
 		unlock_page(page);
-		put_hwpoison_page(page);
+		put_page(page);
 		pr_info("soft offline: %#lx page already poisoned\n", pfn);
 		return -EBUSY;
 	}
@@ -1797,7 +1797,7 @@ static int __soft_offline_page(struct page *page, int flags)
 	 * would need to fix isolation locking first.
 	 */
 	if (ret == 1) {
-		put_hwpoison_page(page);
+		put_page(page);
 		pr_info("soft_offline: %#lx: invalidated\n", pfn);
 		SetPageHWPoison(page);
 		num_poisoned_pages_inc();
@@ -1817,7 +1817,7 @@ static int __soft_offline_page(struct page *page, int flags)
 	 * Drop page reference which is came from get_any_page()
 	 * successful isolate_lru_page() already took another one.
 	 */
-	put_hwpoison_page(page);
+	put_page(page);
 	if (!ret) {
 		LIST_HEAD(pagelist);
 		/*
@@ -1861,7 +1861,7 @@ static int soft_offline_in_use_page(struct page *page, int flags)
 				pr_info("soft offline: %#lx: non anonymous thp\n", page_to_pfn(page));
 			else
 				pr_info("soft offline: %#lx: thp split failed\n", page_to_pfn(page));
-			put_hwpoison_page(page);
+			put_page(page);
 			return -EBUSY;
 		}
 		unlock_page(page);
@@ -1934,7 +1934,7 @@ int soft_offline_page(unsigned long pfn, int flags)
 	if (PageHWPoison(page)) {
 		pr_info("soft offline: %#lx page already poisoned\n", pfn);
 		if (flags & MF_COUNT_INCREASED)
-			put_hwpoison_page(page);
+			put_page(page);
 		return -EBUSY;
 	}
 
-- 
2.26.2


  parent reply	other threads:[~2020-07-16 12:39 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-16 12:37 [PATCH v4 00/15] Hwpoison soft-offline rework Oscar Salvador
2020-07-16 12:37 ` [PATCH v4 01/15] mm,hwpoison: cleanup unused PageHuge() check Oscar Salvador
2020-07-16 12:37 ` [PATCH v4 02/15] mm, hwpoison: remove recalculating hpage Oscar Salvador
2020-07-16 12:37 ` [PATCH v4 03/15] mm,madvise: call soft_offline_page() without MF_COUNT_INCREASED Oscar Salvador
2020-07-16 23:15   ` Mike Kravetz
2020-07-16 12:37 ` [PATCH v4 04/15] mm,madvise: Refactor madvise_inject_error Oscar Salvador
2020-07-16 12:37 ` [PATCH v4 05/15] mm,hwpoison-inject: don't pin for hwpoison_filter Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 06/15] mm,hwpoison: Un-export get_hwpoison_page and make it static Oscar Salvador
2020-07-16 12:38 ` Oscar Salvador [this message]
2020-07-16 12:38 ` [PATCH v4 08/15] mm,hwpoison: remove MF_COUNT_INCREASED Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 09/15] mm,hwpoison: remove flag argument from soft offline functions Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 10/15] mm,hwpoison: Unify THP handling for hard and soft offline Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 11/15] mm,hwpoison: Rework soft offline for free pages Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 12/15] mm,hwpoison: Rework soft offline for in-use pages Oscar Salvador
2020-07-17  6:55   ` HORIGUCHI NAOYA(堀口 直也)
     [not found]   ` <f7387d64d0024d15a1bc821a8e19b8f0@DB7PR04MB5180.eurprd04.prod.outlook.com>
2020-07-20  8:27     ` osalvador
2020-07-22  8:08       ` osalvador
2020-07-23 10:19         ` Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 13/15] mm,hwpoison: Refactor soft_offline_huge_page and __soft_offline_page Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 14/15] mm,hwpoison: Return 0 if the page is already poisoned in soft-offline Oscar Salvador
2020-07-16 12:38 ` [PATCH v4 15/15] mm,hwpoison: introduce MF_MSG_UNSPLIT_THP Oscar Salvador
2020-07-16 12:38 ` [PATCH] x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support Oscar Salvador
2020-07-16 12:43   ` osalvador
2020-07-17 14:49 ` [PATCH v4 00/15] Hwpoison soft-offline rework Qian Cai

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