diff mbox

[Raring,1/1] Drivers: hv: Execute shutdown in a thread context

Message ID f755da0d2f4ad5c1480bd0409ec7842e9d685569.1372872888.git.joseph.salisbury@canonical.com
State New
Headers show

Commit Message

Joseph Salisbury July 8, 2013, 3:50 p.m. UTC 
From: "K. Y. Srinivasan" <kys@microsoft.com>

BugLink: http://bugs.launchpad.net/bugs/1180419

Execute the shutdown code in a thread context. With recent changes made to the
shutdown code, shutdown code cannot be invoked from an interrupt context.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Joseph Salisbury <joseph.salisbury@canonical.com>
(cherry picked from commit 3dd6cb497198a0533a2530b6a345c60c9a29b9bc)
---
 drivers/hv/hv_util.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

Comments

Tim Gardner July 8, 2013, 3:57 p.m. UTC | #1
diff mbox

Patch

diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index a0667de..c64be4f 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -49,6 +49,16 @@  static struct hv_util_service util_kvp = {
 	.util_deinit = hv_kvp_deinit,
 };
 
+static void perform_shutdown(struct work_struct *dummy)
+{
+	orderly_poweroff(true);
+}
+
+/*
+ * Perform the shutdown operation in a thread context.
+ */
+static DECLARE_WORK(shutdown_work, perform_shutdown);
+
 static void shutdown_onchannelcallback(void *context)
 {
 	struct vmbus_channel *channel = context;
@@ -106,7 +116,7 @@  static void shutdown_onchannelcallback(void *context)
 	}
 
 	if (execute_shutdown == true)
-		orderly_poweroff(true);
+		schedule_work(&shutdown_work);
 }
 
 /*