linux-kernel - [PATCH 3.2 38/46] ACPICA: Dispatcher: Update thread ID for recursive method calls

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Date:	Sun, 12 Jun 2016 22:34:42 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	"Andy Lutomirski" <luto@...nel.org>,
	"Lv Zheng" <lv.zheng@...el.com>,
	"Bob Moore" <robert.moore@...el.com>,
	"Prarit Bhargava" <prarit@...hat.com>
Subject: [PATCH 3.2 38/46] ACPICA: Dispatcher: Update thread ID for
 recursive method calls

3.2.81-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Prarit Bhargava <prarit@...hat.com>

commit 93d68841a23a5779cef6fb9aa0ef32e7c5bd00da upstream.

ACPICA commit 7a3bd2d962f221809f25ddb826c9e551b916eb25

Set the mutex owner thread ID.
Original patch from: Prarit Bhargava <prarit@...hat.com>

Link: https://bugzilla.kernel.org/show_bug.cgi?id=115121
Link: https://github.com/acpica/acpica/commit/7a3bd2d9
Signed-off-by: Prarit Bhargava <prarit@...hat.com>
Tested-by: Andy Lutomirski <luto@...nel.org> # On a Dell XPS 13 9350
Signed-off-by: Bob Moore <robert.moore@...el.com>
Signed-off-by: Lv Zheng <lv.zheng@...el.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/acpi/acpica/dsmethod.c | 3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -266,6 +266,9 @@ acpi_ds_begin_method_execution(struct ac
 				obj_desc->method.mutex->mutex.
 				    original_sync_level =
 				    obj_desc->method.mutex->mutex.sync_level;
+
+				obj_desc->method.mutex->mutex.thread_id =
+				    acpi_os_get_thread_id();
 			}
 		}