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Thu, 6 Jun 2024 14:36:28 +0800 (CST) Received: from huawei.com (10.173.135.154) by canpemm500002.china.huawei.com (7.192.104.244) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Thu, 6 Jun 2024 14:36:27 +0800 From: Miaohe Lin To: , , CC: , , , , Subject: [PATCH v2 11/13] mm/memory-failure: fix comment of get_hwpoison_page() Date: Thu, 6 Jun 2024 14:32:45 +0800 Message-ID: <20240606063247.712575-12-linmiaohe@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20240606063247.712575-1-linmiaohe@huawei.com> References: <20240606063247.712575-1-linmiaohe@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.173.135.154] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500002.china.huawei.com (7.192.104.244) X-Rspamd-Queue-Id: 51A7D10001E X-Stat-Signature: sar6imy5mhewkhdz3i97yj86mccnq4yw X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1717655790-397925 X-HE-Meta: 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 +KA24ALH xESGllPbY0je43g+/BPdtiEgnivVeOhasN+aaKX8cmI1j3AsrRxL456z+XUfV0uqdjpYxATS7CNFvYsd94Bx/QbL3FRa0DUFqAqPVlVRoHXte3rPWPxrOh1Ta/HVll/mgQ5tg0SRtDvet2wbl7eKdfEvzl4QbgFmFtAZ/puyElNBhdJ3H6bpshJ9xn5EVVD8hHttNTZdfZT9bNuPXTmf30xyvxvycsicCCOJlM6eFh8ZTMYyKan5om80NpAaDIsTBzUYl1+kExDFpNeA= 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: When return value is 0, it could also means the page is free hugetlb page or free buddy page. Fix the corresponding comment. Signed-off-by: Miaohe Lin --- mm/memory-failure.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 51df2c2e0cc2..0d37f20968e6 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1525,7 +1525,7 @@ static int __get_unpoison_page(struct page *page) * the given page has PG_hwpoison. So it's never reused for other page * allocations, and __get_unpoison_page() never races with them. * - * Return: 0 on failure, + * Return: 0 on failure or free buddy (hugetlb) page, * 1 on success for in-use pages in a well-defined state, * -EIO for pages on which we can not handle memory errors, * -EBUSY when get_hwpoison_page() has raced with page lifecycle