Commit-ID: 0ddea0ead2ced99eaaaddff2beb755381e5c89f8
Gitweb: http://git.kernel.org/tip/0ddea0ead2ced99eaaaddff2beb755381e5c89f8
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Sun, 19 Sep 2010 21:06:14 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Thu, 23 Sep 2010 09:16:42 -0700
rcu: fix sparse errors in rcutorture.c
Add the sparse __rcu address-space identifier and make a couple of
variables static.
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
kernel/rcutorture.c | 11 +++++++----
1 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
index 7297102..9d8e8fb 100644
--- a/kernel/rcutorture.c
+++ b/kernel/rcutorture.c
@@ -120,7 +120,7 @@ struct rcu_torture {
};
static LIST_HEAD(rcu_torture_freelist);
-static struct rcu_torture *rcu_torture_current;
+static struct rcu_torture __rcu *rcu_torture_current;
static long rcu_torture_current_version;
static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN];
static DEFINE_SPINLOCK(rcu_torture_lock);
@@ -153,8 +153,10 @@ int rcutorture_runnable = RCUTORTURE_RUNNABLE_INIT;
#define FULLSTOP_SHUTDOWN 1 /* System shutdown with rcutorture running. */
#define FULLSTOP_RMMOD 2 /* Normal rmmod of rcutorture. */
static int fullstop = FULLSTOP_RMMOD;
-DEFINE_MUTEX(fullstop_mutex); /* Protect fullstop transitions and spawning */
- /* of kthreads. */
+/*
+ * Protect fullstop transitions and spawning of kthreads.
+ */
+static DEFINE_MUTEX(fullstop_mutex);
/*
* Detect and respond to a system shutdown.
@@ -737,7 +739,8 @@ rcu_torture_writer(void *arg)
continue;
rp->rtort_pipe_count = 0;
udelay(rcu_random(&rand) & 0x3ff);
- old_rp = rcu_torture_current;
+ old_rp = rcu_dereference_check(rcu_torture_current,
+ current == writer_task);
rp->rtort_mbtest = 1;
rcu_assign_pointer(rcu_torture_current, rp);
smp_wmb(); /* Mods to old_rp must follow rcu_assign_pointer() */
--
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