diff mbox series

[1/3] powerpc: mpc83xx: Add the missing set_freezable() for agent_thread_fn()

Message ID 20231221044510.1802429-2-haokexin@gmail.com (mailing list archive)
State Accepted
Commit 6addc560e69cd1b2e68ef43ad62a878ac1956f51
Headers show
Series powerpc: Fixes and optimization for the freezable kthread | expand

Commit Message

Kevin Hao Dec. 21, 2023, 4:45 a.m. UTC 
The kernel thread function agent_thread_fn() invokes the try_to_freeze()
in its loop. But all the kernel threads are non-freezable by default.
So if we want to make a kernel thread to be freezable, we have to invoke
set_freezable() explicitly.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
---
 arch/powerpc/platforms/83xx/suspend.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index 9833c36bda83..eed325ed08cc 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -261,6 +261,8 @@  static int mpc83xx_suspend_begin(suspend_state_t state)
 
 static int agent_thread_fn(void *data)
 {
+	set_freezable();
+
 	while (1) {
 		wait_event_interruptible(agent_wq, pci_pm_state >= 2);
 		try_to_freeze();