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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-01-31 16:46:34 -0800 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-02-21 09:06:09 -0800 |
| commit | 7129d383d9f46eb8276bee5fb46df63f09a70130 (patch) | |
| tree | e2570ffb2f2146d2b6a87ff3505e9c9d824c3a6c /kernel/rcutorture.c | |
| parent | 236fefafe5d3d34b78ed2ccf5510909716112326 (diff) | |
| download | linux-7129d383d9f46eb8276bee5fb46df63f09a70130.tar.gz linux-7129d383d9f46eb8276bee5fb46df63f09a70130.tar.bz2 linux-7129d383d9f46eb8276bee5fb46df63f09a70130.zip | |
rcu: Trace only after NULL-pointer check
Fix a bonehead error introduced when adding event tracing to rcutorture.
Move the traces to follow the NULL-pointer checks.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutorture.c')
| -rw-r--r-- | kernel/rcutorture.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index 5cfa23be43bd..ed1c72bd9c09 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -1000,12 +1000,12 @@ static void rcu_torture_timer(unsigned long unused) rcu_read_lock_bh_held() || rcu_read_lock_sched_held() || srcu_read_lock_held(&srcu_ctl)); - do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); if (p == NULL) { /* Leave because rcu_torture_writer is not yet underway */ cur_ops->readunlock(idx); return; } + do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); if (p->rtort_mbtest == 0) atomic_inc(&n_rcu_torture_mberror); spin_lock(&rand_lock); @@ -1063,13 +1063,13 @@ rcu_torture_reader(void *arg) rcu_read_lock_bh_held() || rcu_read_lock_sched_held() || srcu_read_lock_held(&srcu_ctl)); - do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); if (p == NULL) { /* Wait for rcu_torture_writer to get underway */ cur_ops->readunlock(idx); schedule_timeout_interruptible(HZ); continue; } + do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu); if (p->rtort_mbtest == 0) atomic_inc(&n_rcu_torture_mberror); cur_ops->read_delay(&rand); |