From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 23 Jun 2011 21:06:11 +0000 (-0400)
Subject: Add wait quiescent
X-Git-Tag: v2.0-pre1~46
X-Git-Url: http://git.liburcu.org/?a=commitdiff_plain;h=5f7f9078188863ab765d9120e9628b55dad18be0;p=lttng-modules.git

Add wait quiescent

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/ltt-debugfs-abi.c b/ltt-debugfs-abi.c
index c6d9f602..6327d09a 100644
--- a/ltt-debugfs-abi.c
+++ b/ltt-debugfs-abi.c
@@ -212,6 +212,9 @@ long lttng_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 				(struct lttng_kernel_tracer_version __user *) arg);
 	case LTTNG_KERNEL_TRACEPOINT_LIST:
 		return lttng_abi_tracepoint_list();
+	case LTTNG_KERNEL_WAIT_QUIESCENT:
+		synchronize_trace();
+		return 0;
 	default:
 		return -ENOIOCTLCMD;
 	}