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Mon, 3 Nov 2025 11:34:14 +0800 (CST) Received: from kwepemj100009.china.huawei.com (unknown [7.202.194.3]) by mail.maildlp.com (Postfix) with ESMTPS id 7950E140277; Mon, 3 Nov 2025 11:35:48 +0800 (CST) Received: from DESKTOP-A37P9LK.huawei.com (10.67.109.17) by kwepemj100009.china.huawei.com (7.202.194.3) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 3 Nov 2025 11:35:47 +0800 From: Xie Yuanbin To: , , , , , , , , , , , , , , , , , CC: , , , , , , , Xie Yuanbin Subject: [PATCH 2/2] mm/memory-failure: remove the selection of RAS Date: Mon, 3 Nov 2025 11:35:36 +0800 Message-ID: <20251103033536.52234-2-xieyuanbin1@huawei.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251103033536.52234-1-xieyuanbin1@huawei.com> References: <20251103033536.52234-1-xieyuanbin1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.67.109.17] X-ClientProxiedBy: kwepems100001.china.huawei.com (7.221.188.238) To kwepemj100009.china.huawei.com (7.202.194.3) X-Rspamd-Queue-Id: 93CA540009 X-Rspamd-Server: rspam11 X-Rspam-User: X-Stat-Signature: tk7y9zo5jpu1kh675eognoxjmirfrh65 X-HE-Tag: 1762140952-550859 X-HE-Meta: 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 H2sNSnkq QGX4wTnhKx4tans/vuktJZR3Zx/R+7vFsIZHPVJOTYc8uPmK2jmm+6Ve05rLcxNwNxO/Co9nGVXC/8wKZIw3bP+hS40vAwhXIxOmP5UZBySy4vBnWwczuYxtJqYR7xZcfZAFsfmdyWsLKIL9Q0ZZ2U4tkPy67ddY8tDuhK95Xu/z2AgL8tB++tr0ce9nkBLmImGvbyx3XnfjOyWnQPiPp7461zp2bUIxFZ4OU4MhN2MZm5SepFH6JMavLAlZWUPLYfZZO6xb6yiCuEQSlEvAMhXBCbHuRtJzXmDA/HZkEQHk+EbMZe6bToqdYvy63E2tbB7fFnVbbjffjeiABpS4QIv+56bFs7dHcO85v/zUFjQIwtas= 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: The commit 97f0b13452198290799f ("tracing: add trace event for memory-failure") introduces the selection of RAS in memory-failure. This commit is just a tracing feature; in reality, there is no dependency between memory-failure and RAS. RAS increases the size of the bzImage image by 8k, which is very valuable for embedded devices. Signed-off-by: Xie Yuanbin --- mm/Kconfig | 1 - mm/memory-failure.c | 2 ++ 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/Kconfig b/mm/Kconfig index a5a90b169435..c3a8e0ba1ac1 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -738,11 +738,10 @@ config ARCH_SUPPORTS_MEMORY_FAILURE config MEMORY_FAILURE depends on MMU depends on ARCH_SUPPORTS_MEMORY_FAILURE bool "Enable recovery from hardware memory errors" - select RAS help Enables code to recover from some memory failures on systems with MCA recovery. This allows a system to continue running even when some of its memory has uncorrected errors. This requires special hardware support and typically ECC memory. diff --git a/mm/memory-failure.c b/mm/memory-failure.c index f698df156bf8..baf2bd79b2fb 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1276,11 +1276,13 @@ static void update_per_node_mf_stats(unsigned long pfn, * setting PG_dirty outside page lock. See also comment above set_page_dirty(). */ static int action_result(unsigned long pfn, enum mf_action_page_type type, enum mf_result result) { +#ifdef CONFIG_RAS trace_memory_failure_event(pfn, type, result); +#endif if (type != MF_MSG_ALREADY_POISONED) { num_poisoned_pages_inc(pfn); update_per_node_mf_stats(pfn, result); } -- 2.51.0