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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 07/24] rcutorture: Remove the "rcu_bh" and "sched" torture types Date: Wed, 29 Aug 2018 15:53:48 -0700 X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180829225340.GA7019@linux.vnet.ibm.com> References: <20180829225340.GA7019@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18082922-0068-0000-0000-00000331BA5B X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00009636; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000266; SDB=6.01080749; UDB=6.00557500; IPR=6.00860734; MB=3.00023002; MTD=3.00000008; XFM=3.00000015; UTC=2018-08-29 22:54:12 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18082922-0069-0000-0000-0000458F1C57 Message-Id: <20180829225405.7275-7-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=3 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-1808290223 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Now that the RCU-bh and RCU-sched update-side functions are simple wrappers around their RCU counterparts, there isn't a whole lot of point in testing them. This commit therefore removes the "rcu_bh" and "sched" torture types from rcutorture. Signed-off-by: Paul E. McKenney --- kernel/rcu/rcutorture.c | 89 ++--------------------------------------- 1 file changed, 3 insertions(+), 86 deletions(-) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 1bc0e37dffa8..a228ad762fba 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -128,7 +128,7 @@ torture_param(int, verbose, 1, static char *torture_type = "rcu"; module_param(torture_type, charp, 0444); -MODULE_PARM_DESC(torture_type, "Type of RCU to torture (rcu, rcu_bh, ...)"); +MODULE_PARM_DESC(torture_type, "Type of RCU to torture (rcu, srcu, ...)"); static int nrealreaders; static int ncbflooders; @@ -438,47 +438,6 @@ static struct rcu_torture_ops rcu_ops = { .name = "rcu" }; -/* - * Definitions for rcu_bh torture testing. - */ - -static int rcu_bh_torture_read_lock(void) __acquires(RCU_BH) -{ - rcu_read_lock_bh(); - return 0; -} - -static void rcu_bh_torture_read_unlock(int idx) __releases(RCU_BH) -{ - rcu_read_unlock_bh(); -} - -static void rcu_bh_torture_deferred_free(struct rcu_torture *p) -{ - call_rcu_bh(&p->rtort_rcu, rcu_torture_cb); -} - -static struct rcu_torture_ops rcu_bh_ops = { - .ttype = RCU_BH_FLAVOR, - .init = rcu_sync_torture_init, - .readlock = rcu_bh_torture_read_lock, - .read_delay = rcu_read_delay, /* just reuse rcu's version. */ - .readunlock = rcu_bh_torture_read_unlock, - .get_gp_seq = rcu_bh_get_gp_seq, - .gp_diff = rcu_seq_diff, - .deferred_free = rcu_bh_torture_deferred_free, - .sync = synchronize_rcu_bh, - .exp_sync = synchronize_rcu_bh_expedited, - .call = call_rcu_bh, - .cb_barrier = rcu_barrier_bh, - .fqs = rcu_bh_force_quiescent_state, - .stats = NULL, - .irq_capable = 1, - .extendables = (RCUTORTURE_RDR_BH | RCUTORTURE_RDR_IRQ), - .ext_irq_conflict = RCUTORTURE_RDR_RCU, - .name = "rcu_bh" -}; - /* * Don't even think about trying any of these in real life!!! * The names includes "busted", and they really means it! @@ -666,48 +625,6 @@ static struct rcu_torture_ops busted_srcud_ops = { .name = "busted_srcud" }; -/* - * Definitions for sched torture testing. - */ - -static int sched_torture_read_lock(void) -{ - preempt_disable(); - return 0; -} - -static void sched_torture_read_unlock(int idx) -{ - preempt_enable(); -} - -static void rcu_sched_torture_deferred_free(struct rcu_torture *p) -{ - call_rcu_sched(&p->rtort_rcu, rcu_torture_cb); -} - -static struct rcu_torture_ops sched_ops = { - .ttype = RCU_SCHED_FLAVOR, - .init = rcu_sync_torture_init, - .readlock = sched_torture_read_lock, - .read_delay = rcu_read_delay, /* just reuse rcu's version. */ - .readunlock = sched_torture_read_unlock, - .get_gp_seq = rcu_sched_get_gp_seq, - .gp_diff = rcu_seq_diff, - .deferred_free = rcu_sched_torture_deferred_free, - .sync = synchronize_sched, - .exp_sync = synchronize_sched_expedited, - .get_state = get_state_synchronize_sched, - .cond_sync = cond_synchronize_sched, - .call = call_rcu_sched, - .cb_barrier = rcu_barrier_sched, - .fqs = rcu_sched_force_quiescent_state, - .stats = NULL, - .irq_capable = 1, - .extendables = RCUTORTURE_MAX_EXTEND, - .name = "sched" -}; - /* * Definitions for RCU-tasks torture testing. */ @@ -1956,8 +1873,8 @@ rcu_torture_init(void) int cpu; int firsterr = 0; static struct rcu_torture_ops *torture_ops[] = { - &rcu_ops, &rcu_bh_ops, &rcu_busted_ops, &srcu_ops, &srcud_ops, - &busted_srcud_ops, &sched_ops, &tasks_ops, + &rcu_ops, &rcu_busted_ops, &srcu_ops, &srcud_ops, + &busted_srcud_ops, &tasks_ops, }; if (!torture_init_begin(torture_type, verbose)) -- 2.17.1