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Mon, 12 Jan 2026 23:06:35 +0800 (CST) Received: from dggpemf100008.china.huawei.com (unknown [7.185.36.138]) by mail.maildlp.com (Postfix) with ESMTPS id 71F754036C; Mon, 12 Jan 2026 23:10:25 +0800 (CST) Received: from localhost.localdomain (10.50.87.83) by dggpemf100008.china.huawei.com (7.185.36.138) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 12 Jan 2026 23:10:24 +0800 From: Kefeng Wang To: Andrew Morton , David Hildenbrand , Oscar Salvador , Muchun Song , CC: , , Zi Yan , Vlastimil Babka , Brendan Jackman , Johannes Weiner , Matthew Wilcox , Kefeng Wang Subject: [PATCH 5/5] mm: hugetlb_cma: mark hugetlb_cma{_only} as __ro_after_init Date: Mon, 12 Jan 2026 23:09:54 +0800 Message-ID: <20260112150954.1802953-6-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20260112150954.1802953-1-wangkefeng.wang@huawei.com> References: <20260112150954.1802953-1-wangkefeng.wang@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.50.87.83] X-ClientProxiedBy: kwepems100002.china.huawei.com (7.221.188.206) To dggpemf100008.china.huawei.com (7.185.36.138) X-Rspamd-Queue-Id: BD723C0013 X-Stat-Signature: 4np7gj33pp6i1ikjxncb4enh8busebta X-Rspam-User: X-Rspamd-Server: rspam05 X-HE-Tag: 1768230629-87095 X-HE-Meta: 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 xNtKY/sV bs3jytpH6yYKFJFh8FCygpdkyWBe9ZvjbdAq2QtuZpDMMUfdt3+De+cCs4XCJXvhOQAS/UPXMr2UQ4bpDvjtacFqR/JgaRedtAcp2d7OT2KZ4px1EFNDt91BVudPoHu+EaILIahYGzBmZMUiBAZze0GJ+Rb+5ypsQPmR9EQ7e1mw69C2DZbpnEcssOe2l7fPEhhBuMf3M7XGrg+FDqHl6+1mHrtHWNuuiqnR7FBGlSsjaW0PII0SbN7bIaE1jAEDaIptII5hgBDfQT72w5vE9jTEvC1LfseyjS9gA9VgQxR4h4xTRufGkT+1H/rIwradZXrreX8A7m55cYggnhbymXE355WozksQU89vesEd+jSDzQ2KLl2lB6BVhoA== 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 hugetlb_cma and hugetlb_cma_only are initialized once during init and never changed. Signed-off-by: Kefeng Wang --- mm/hugetlb_cma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/hugetlb_cma.c b/mm/hugetlb_cma.c index d8fa93825992..f83ae4998990 100644 --- a/mm/hugetlb_cma.c +++ b/mm/hugetlb_cma.c @@ -13,9 +13,9 @@ #include "hugetlb_cma.h" -static struct cma *hugetlb_cma[MAX_NUMNODES]; +static struct cma *hugetlb_cma[MAX_NUMNODES] __ro_after_init; static unsigned long hugetlb_cma_size_in_node[MAX_NUMNODES] __initdata; -static bool hugetlb_cma_only; +static bool hugetlb_cma_only __ro_after_init; static unsigned long hugetlb_cma_size __ro_after_init; void hugetlb_cma_free_frozen_folio(struct folio *folio) -- 2.27.0