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Tue, 18 Mar 2025 16:49:01 +0800 (CST) Received: from huawei.com (10.175.124.71) by kwepemo200002.china.huawei.com (7.202.195.209) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 18 Mar 2025 16:49:00 +0800 From: Jinjiang Tu To: , , , CC: , , , Subject: [PATCH 1/2] mm/hwpoison: introduce folio_contain_hwpoisoned_page() helper Date: Tue, 18 Mar 2025 16:39:38 +0800 Message-ID: <20250318083939.987651-2-tujinjiang@huawei.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250318083939.987651-1-tujinjiang@huawei.com> References: <20250318083939.987651-1-tujinjiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.124.71] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemo200002.china.huawei.com (7.202.195.209) X-Rspam-User: X-Rspamd-Queue-Id: D4A28180003 X-Rspamd-Server: rspam05 X-Stat-Signature: b8sc4x8riz319daajbmbmotuypedccas X-HE-Tag: 1742287744-434326 X-HE-Meta: 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 ZiqFstTs Tj1K4FBap4UMI9BA/dmrsm912aXmbeVrAplIKPmvZAXlhV9WUet1fjMAixokEGb1wr0h5zcAsQEEHP96BKVwAWBuuKYZM/WKOPcXSA//fVOzJ8yitlHN4p0tWZ4HbHigAPKOw5DYDyvQhA2gMkrMwejShc55OYWBZbJ3yQBkveOoLxq6zFSaZXN2bCvIAcN+xkFBR6aG8yraAjnAo/CNh4qqWG5UuDvhQDj8NEjof1dJ4kic4Ek9JjnvKOwdvopbPAJ0x X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Introduce helper folio_contain_hwpoisoned_page() to check if the entire folio is hwpoisoned or it contains hwpoisoned pages. Signed-off-by: Jinjiang Tu Acked-by: Miaohe Lin --- include/linux/page-flags.h | 6 ++++++ mm/memory_hotplug.c | 3 +-- mm/shmem.c | 3 +-- 3 files changed, 8 insertions(+), 4 deletions(-) diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 36d283552f80..be2f0017a667 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -1104,6 +1104,12 @@ static inline bool is_page_hwpoison(const struct page *page) return folio_test_hugetlb(folio) && PageHWPoison(&folio->page); } +static inline bool folio_contain_hwpoisoned_page(struct folio *folio) +{ + return folio_test_hwpoison(folio) || + (folio_test_large(folio) && folio_test_has_hwpoisoned(folio)); +} + bool is_free_buddy_page(const struct page *page); PAGEFLAG(Isolated, isolated, PF_ANY); diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 16cf9e17077e..75401866fb76 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1828,8 +1828,7 @@ static void do_migrate_range(unsigned long start_pfn, unsigned long end_pfn) if (unlikely(page_folio(page) != folio)) goto put_folio; - if (folio_test_hwpoison(folio) || - (folio_test_large(folio) && folio_test_has_hwpoisoned(folio))) { + if (folio_contain_hwpoisoned_page(folio)) { if (WARN_ON(folio_test_lru(folio))) folio_isolate_lru(folio); if (folio_mapped(folio)) { diff --git a/mm/shmem.c b/mm/shmem.c index 1ede0800e846..1dd513d82332 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -3302,8 +3302,7 @@ shmem_write_begin(struct file *file, struct address_space *mapping, if (ret) return ret; - if (folio_test_hwpoison(folio) || - (folio_test_large(folio) && folio_test_has_hwpoisoned(folio))) { + if (folio_contain_hwpoisoned_page(folio)) { folio_unlock(folio); folio_put(folio); return -EIO;