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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 42/52] rcu: Remove last non-flavor-traversal rsp local variable from tree_plugin.h Date: Wed, 29 Aug 2018 15:38:44 -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: 18082922-2213-0000-0000-000002E508D2 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=6.00557498; IPR=6.00860730; MB=3.00023002; MTD=3.00000008; XFM=3.00000015; UTC=2018-08-29 22:39:02 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18082922-2214-0000-0000-00005B602DAE Message-Id: <20180829223854.4055-42-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 This commit removes the last non-flavor-traversal rsp local variable from kernel/rcu/tree_plugin.h in favor of &rcu_state. The flavor-traversal locals will be removed with the removal of flavor traversal. Signed-off-by: Paul E. McKenney --- kernel/rcu/tree_plugin.h | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 5423f9e58494..59d66ee26310 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -782,7 +782,6 @@ static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp) */ static void rcu_flavor_check_callbacks(int user) { - struct rcu_state *rsp = &rcu_state; struct task_struct *t = current; if (user || rcu_is_cpu_rrupt_from_idle()) { @@ -806,7 +805,7 @@ static void rcu_flavor_check_callbacks(int user) __this_cpu_read(rcu_data.core_needs_qs) && __this_cpu_read(rcu_data.cpu_no_qs.b.norm) && !t->rcu_read_unlock_special.b.need_qs && - time_after(jiffies, rsp->gp_start + HZ)) + time_after(jiffies, rcu_state.gp_start + HZ)) t->rcu_read_unlock_special.b.need_qs = true; } @@ -1761,12 +1760,11 @@ static void print_cpu_stall_info_begin(void) /* * Print out diagnostic information for the specified stalled CPU. * - * If the specified CPU is aware of the current RCU grace period - * (flavor specified by rsp), then print the number of scheduling - * clock interrupts the CPU has taken during the time that it has - * been aware. Otherwise, print the number of RCU grace periods - * that this CPU is ignorant of, for example, "1" if the CPU was - * aware of the previous grace period. + * If the specified CPU is aware of the current RCU grace period, then + * print the number of scheduling clock interrupts the CPU has taken + * during the time that it has been aware. Otherwise, print the number + * of RCU grace periods that this CPU is ignorant of, for example, "1" + * if the CPU was aware of the previous grace period. * * Also print out idle and (if CONFIG_RCU_FAST_NO_HZ) idle-entry info. */ -- 2.17.1