From patchwork Tue Dec 13 00:42:19 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Paul E. 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Violators will be prosecuted; Mon, 12 Dec 2011 17:42:30 -0700 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay05.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id pBD0gTEi110468 for ; Mon, 12 Dec 2011 17:42:29 -0700 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id pBD0gQSW018537 for ; Mon, 12 Dec 2011 17:42:29 -0700 Received: from paulmck-ThinkPad-W500 ([9.47.24.246]) by d03av01.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVin) with ESMTP id pBD0gQg5018523; Mon, 12 Dec 2011 17:42:26 -0700 Received: by paulmck-ThinkPad-W500 (Postfix, from userid 1000) id 81129E517F; Mon, 12 Dec 2011 16:42:25 -0800 (PST) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: mingo@elte.hu, laijs@cn.fujitsu.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@polymtl.ca, josh@joshtriplett.org, niv@us.ibm.com, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, Valdis.Kletnieks@vt.edu, dhowells@redhat.com, eric.dumazet@gmail.com, darren@dvhart.com, patches@linaro.org, "Paul E. McKenney" Subject: [PATCH RFC tip/core/rcu 1/6] rcu: Add rcutorture tests for srcu_read_lock_raw() Date: Mon, 12 Dec 2011 16:42:19 -0800 Message-Id: <1323736944-32575-1-git-send-email-paulmck@linux.vnet.ibm.com> X-Mailer: git-send-email 1.7.8 In-Reply-To: <20111213004144.GA32120@linux.vnet.ibm.com> References: <20111213004144.GA32120@linux.vnet.ibm.com> x-cbid: 11121300-3270-0000-0000-000002833189 From: "Paul E. McKenney" This commit adds simple rcutorture tests for srcu_read_lock_raw() and srcu_read_unlock_raw(). It does not test doing srcu_read_lock_raw() in an exception handler and releasing it in the corresponding process context. Signed-off-by: Paul E. McKenney --- kernel/rcutorture.c | 26 +++++++++++++++++++++++++- 1 files changed, 25 insertions(+), 1 deletions(-) diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index 186ead9..88f17b8 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -632,6 +632,30 @@ static struct rcu_torture_ops srcu_ops = { .name = "srcu" }; +static int srcu_torture_read_lock_raw(void) __acquires(&srcu_ctl) +{ + return srcu_read_lock_raw(&srcu_ctl); +} + +static void srcu_torture_read_unlock_raw(int idx) __releases(&srcu_ctl) +{ + srcu_read_unlock_raw(&srcu_ctl, idx); +} + +static struct rcu_torture_ops srcu_raw_ops = { + .init = srcu_torture_init, + .cleanup = srcu_torture_cleanup, + .readlock = srcu_torture_read_lock_raw, + .read_delay = srcu_read_delay, + .readunlock = srcu_torture_read_unlock_raw, + .completed = srcu_torture_completed, + .deferred_free = rcu_sync_torture_deferred_free, + .sync = srcu_torture_synchronize, + .cb_barrier = NULL, + .stats = srcu_torture_stats, + .name = "srcu_raw" +}; + static void srcu_torture_synchronize_expedited(void) { synchronize_srcu_expedited(&srcu_ctl); @@ -1591,7 +1615,7 @@ rcu_torture_init(void) static struct rcu_torture_ops *torture_ops[] = { &rcu_ops, &rcu_sync_ops, &rcu_expedited_ops, &rcu_bh_ops, &rcu_bh_sync_ops, &rcu_bh_expedited_ops, - &srcu_ops, &srcu_expedited_ops, + &srcu_ops, &srcu_raw_ops, &srcu_expedited_ops, &sched_ops, &sched_sync_ops, &sched_expedited_ops, }; mutex_lock(&fullstop_mutex);