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(unknown [123.52.27.102]) by smtp3 (Coremail) with SMTP id DcmowAAnLqqGmk9jTN0VDQ--.39346S2; Wed, 19 Oct 2022 14:34:47 +0800 (CST) From: zhaomzhao@126.com To: paulmck@kernel.org, frederic@kernel.org, quic_neeraju@quicinc.com, josh@joshtriplett.org, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, joel@joelfernandes.org, edumazet@google.com Cc: rcu@vger.kernel.org, linux-kernel@vger.kernel.org, Zhao Mengmeng Subject: [PATCH v1] rcu: use hlist_nulls_next_rcu() in hlist_nulls_add_tail_rcu() Date: Wed, 19 Oct 2022 08:36:50 -0400 Message-Id: <20221019123650.139210-1-zhaomzhao@126.com> X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID: DcmowAAnLqqGmk9jTN0VDQ--.39346S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7GFy8try3uw4rKrWDZr1rCrg_yoWDArbEv3 40kw1I9F4SqF4Dur1jvr1IqF98Kr13Xr93Xr1xJr1aya4DCwnxG3WUGr1qyFy7KrW3KrZ5 JF4kKryvkFn7GjkaLaAFLSUrUUUUbb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IUYuCJPUUUUU== X-Originating-IP: [123.52.27.102] X-CM-SenderInfo: 52kd0zp2kd0qqrswhudrp/1tbiEAefd1pEDd-FJQAAsT X-Spam-Status: No, score=0.9 required=5.0 tests=BAYES_00,DATE_IN_FUTURE_03_06, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Zhao Mengmeng In commit 8dbd76e79a16 ("tcp/dccp: fix possible race __inet_lookup_established()"), function hlist_nulls_add_tail_rcu() was added back, but the local variable *last* is of type hlist_nulls_node, so use hlist_nulls_next_rcu() instead of hlist_next_rcu(). Signed-off-by: Zhao Mengmeng --- include/linux/rculist_nulls.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/rculist_nulls.h b/include/linux/rculist_nulls.h index d8afdb8784c1..ba4c00dd8005 100644 --- a/include/linux/rculist_nulls.h +++ b/include/linux/rculist_nulls.h @@ -139,7 +139,7 @@ static inline void hlist_nulls_add_tail_rcu(struct hlist_nulls_node *n, if (last) { n->next = last->next; n->pprev = &last->next; - rcu_assign_pointer(hlist_next_rcu(last), n); + rcu_assign_pointer(hlist_nulls_next_rcu(last), n); } else { hlist_nulls_add_head_rcu(n, h); } -- 2.37.1