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rcu: Consolidate dumping of ftrace buffer

Bladeren bron 
This commit consolidates a couple definitions and several calls for
single-shot ftrace-buffer dumping.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney
2016-03-21 19:46:04 -07:00
bovenliggende f55532a0c0
commit 274529ba9b
3 gewijzigde bestanden met toevoegingen van 18 en 16 verwijderingen
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17
kernel/rcu/rcutorture.c
Bestand weergeven

@@ -1082,17 +1082,6 @@ rcu_torture_fakewriter(void *arg)
return 0;
}
static void rcutorture_trace_dump(void)
{
static atomic_t beenhere = ATOMIC_INIT(0);
if (atomic_read(&beenhere))
return;
if (atomic_xchg(&beenhere, 1) != 0)
return;
ftrace_dump(DUMP_ALL);
}
/*
* RCU torture reader from timer handler. Dereferences rcu_torture_current,
* incrementing the corresponding element of the pipeline array. The
@@ -1142,7 +1131,7 @@ static void rcu_torture_timer(unsigned long unused)
if (pipe_count > 1) {
do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu, ts,
started, completed);
rcutorture_trace_dump();
rcu_ftrace_dump(DUMP_ALL);
}
__this_cpu_inc(rcu_torture_count[pipe_count]);
completed = completed - started;
@@ -1215,7 +1204,7 @@ rcu_torture_reader(void *arg)
if (pipe_count > 1) {
do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu,
ts, started, completed);
rcutorture_trace_dump();
rcu_ftrace_dump(DUMP_ALL);
}
__this_cpu_inc(rcu_torture_count[pipe_count]);
completed = completed - started;
@@ -1333,7 +1322,7 @@ rcu_torture_stats_print(void)
rcu_torture_writer_state,
gpnum, completed, flags);
show_rcu_gp_kthreads();
rcutorture_trace_dump();
rcu_ftrace_dump(DUMP_ALL);
}
rtcv_snap = rcu_torture_current_version;
}