[PATCH] io_uring: update sq_thread_idle after ctx deleted

[Hao Xu <haoxu@xxxxxxxxxxxxxxxxx>]

we shall update sq_thread_idle anytime we do ctx deletion from ctx_list

Fixes:734551df6f9b ("io_uring: fix shared sqpoll cancellation hangs")
Signed-off-by: Hao Xu <haoxu@xxxxxxxxxxxxxxxxx>
---
 fs/io_uring.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 40f38256499c..15f204274761 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8867,6 +8867,7 @@ static void io_sqpoll_cancel_cb(struct callback_head *cb)
 	if (sqd->thread)
 		io_uring_cancel_sqpoll(sqd);
 	list_del_init(&work->ctx->sqd_list);
+	io_sqd_update_thread_idle(sqd);
 	complete(&work->completion);
 }
 
@@ -8877,7 +8878,6 @@ static void io_sqpoll_cancel_sync(struct io_ring_ctx *ctx)
 	struct task_struct *task;
 
 	io_sq_thread_park(sqd);
-	io_sqd_update_thread_idle(sqd);
 	task = sqd->thread;
 	if (task) {
 		init_completion(&work.completion);
@@ -8886,6 +8886,7 @@ static void io_sqpoll_cancel_sync(struct io_ring_ctx *ctx)
 		wake_up_process(task);
 	} else {
 		list_del_init(&ctx->sqd_list);
+		io_sqd_update_thread_idle(sqd);
 	}
 	io_sq_thread_unpark(sqd);
 
-- 
1.8.3.1