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[(39.156.73.12)] by mailgw (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1086783333; Wed, 19 Jul 2023 16:28:19 +0800 From: Enze Li To: chenhuacai@kernel.org, kernel@xen0n.name, loongarch@lists.linux.dev, glider@google.com, elver@google.com, akpm@linux-foundation.org, kasan-dev@googlegroups.com, linux-mm@kvack.org Cc: zhangqing@loongson.cn, yangtiezhu@loongson.cn, dvyukov@google.com, Enze Li Subject: [PATCH 3/4] KFENCE: Deferring the assignment of the local variable addr Date: Wed, 19 Jul 2023 16:27:31 +0800 Message-Id: <20230719082732.2189747-4-lienze@kylinos.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230719082732.2189747-1-lienze@kylinos.cn> References: <20230719082732.2189747-1-lienze@kylinos.cn> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 10F39140010 X-Rspam-User: X-Stat-Signature: yihkmyewzek1178euqmqj4dca8d39kdw X-Rspamd-Server: rspam03 X-HE-Tag: 1689755322-813240 X-HE-Meta: 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 2S4SIbJV zNwXtPu9tEWMYvSMmNkbO1wzlQMqiQE7suKvo 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: The LoongArch architecture is different from other architectures. It needs to update __kfence_pool during arch_kfence_init_pool. This patch modifies the assignment location of the local variable addr in the kfence_init_pool function to support the case of updating __kfence_pool in arch_kfence_init_pool. Signed-off-by: Enze Li --- mm/kfence/core.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/mm/kfence/core.c b/mm/kfence/core.c index dad3c0eb70a0..e124ffff489f 100644 --- a/mm/kfence/core.c +++ b/mm/kfence/core.c @@ -566,13 +566,14 @@ static void rcu_guarded_free(struct rcu_head *h) */ static unsigned long kfence_init_pool(void) { - unsigned long addr = (unsigned long)__kfence_pool; + unsigned long addr; struct page *pages; int i; if (!arch_kfence_init_pool()) - return addr; + return (unsigned long)__kfence_pool; + addr = (unsigned long)__kfence_pool; pages = virt_to_page(__kfence_pool); /* -- 2.34.1