The kernel thread function log_writes_kthread() 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 <[email protected]> --- drivers/md/dm-log-writes.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c index f17a6cf2284e..dabfc856443a 100644 --- a/drivers/md/dm-log-writes.c +++ b/drivers/md/dm-log-writes.c @@ -432,6 +432,7 @@ static int log_writes_kthread(void *arg) struct log_writes_c *lc = arg; sector_t sector = 0; + set_freezable(); while (!kthread_should_stop()) { bool super = false; bool logging_enabled; -- 2.39.2
