From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Tue, 8 Jan 2013 19:27:05 +0000 (-0500)
Subject: Fix: statedump hang due to incorrect wait/wakeup use
X-Git-Tag: v2.1.1~5
X-Git-Url: http://git.lttng.org/?p=lttng-modules.git;a=commitdiff_plain;h=76b792cbd23db5a0d2856bdde006121f113ebba5

Fix: statedump hang due to incorrect wait/wakeup use

Reported-by: Phil Wilshire <sysdcs@gmail.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/lttng-statedump-impl.c b/lttng-statedump-impl.c
index be498acc..765fcea8 100644
--- a/lttng-statedump-impl.c
+++ b/lttng-statedump-impl.c
@@ -397,7 +397,7 @@ int do_lttng_statedump(struct lttng_session *session)
 		schedule_delayed_work_on(cpu, &cpu_work[cpu], 0);
 	}
 	/* Wait for all threads to run */
-	__wait_event(statedump_wq, (atomic_read(&kernel_threads_to_run) != 0));
+	wait_event(statedump_wq, (atomic_read(&kernel_threads_to_run) != 0));
 	put_online_cpus();
 	/* Our work is done */
 	printk(KERN_DEBUG "LTT state dump end\n");