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McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 13/52] rcu: Remove rsp parameter from check_cpu_stall() Date: Wed, 29 Aug 2018 15:38:15 -0700 X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180829223830.GA1800@linux.vnet.ibm.com> References: <20180829223830.GA1800@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18082922-0064-0000-0000-000003440007 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009636; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01080744; UDB=6.00557497; IPR=6.00860729; MB=3.00023002; MTD=3.00000008; XFM=3.00000015; UTC=2018-08-29 22:39:01 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18082922-0065-0000-0000-00003A7847C8 Message-Id: <20180829223854.4055-13-paulmck@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-08-29_06:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1807170000 definitions=main-1808290220 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There now is only one rcu_state structure in a given build of the Linux kernel, so there is no need to pass it as a parameter to RCU's functions. This commit therefore removes the rsp parameter from check_cpu_stall(). Signed-off-by: Paul E. McKenney --- kernel/rcu/tree.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index e875987f2ae3..65411f6a84fe 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1441,7 +1441,7 @@ static void print_cpu_stall(void) resched_cpu(smp_processor_id()); } -static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp) +static void check_cpu_stall(struct rcu_data *rdp) { unsigned long gs1; unsigned long gs2; @@ -1450,6 +1450,7 @@ static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp) unsigned long jn; unsigned long js; struct rcu_node *rnp; + struct rcu_state *rsp = &rcu_state; if ((rcu_cpu_stall_suppress && !rcu_kick_kthreads) || !rcu_gp_in_progress()) @@ -3093,7 +3094,7 @@ static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp) struct rcu_node *rnp = rdp->mynode; /* Check for CPU stalls, if enabled. */ - check_cpu_stall(rsp, rdp); + check_cpu_stall(rdp); /* Is this CPU a NO_HZ_FULL CPU that should ignore RCU? */ if (rcu_nohz_full_cpu(rsp)) -- 2.17.1