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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 833643488; Tue, 01 Aug 2023 10:58:41 +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 1/4 v3] KFENCE: Defer the assignment of the local variable addr Date: Tue, 1 Aug 2023 10:58:12 +0800 Message-Id: <20230801025815.2436293-2-lienze@kylinos.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230801025815.2436293-1-lienze@kylinos.cn> References: <20230801025815.2436293-1-lienze@kylinos.cn> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 8ED2540008 X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: dttqespb4psags6gdy3ato7y31jpwe41 X-HE-Tag: 1690859031-288526 X-HE-Meta: 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 Hucx7+wo NjoixheNEaIRp9wlSnrgZMxzYU8OluNI8ojXM8k/AbcbAPKQQL9SzZEF+eQ== 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 Acked-by: Marco Elver --- 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