[PATCH for-5.10] io_uring: remove req cancel in ->flush()

[Pavel Begunkov <asml.silence@gmail.com>]

Every close(io_uring) causes cancellation of all inflight requests
carrying ->files. That's not nice but was neccessary up until recently.
Now task->files removal is handled in the core code, so that part of
flush can be removed.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 fs/io_uring.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 95d2bb7069c6..6536e24eb44e 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -8748,16 +8748,12 @@ void __io_uring_task_cancel(void)
 
 static int io_uring_flush(struct file *file, void *data)
 {
-	struct io_ring_ctx *ctx = file->private_data;
+	bool exiting = !data;
 
-	/*
-	 * If the task is going away, cancel work it may have pending
-	 */
 	if (fatal_signal_pending(current) || (current->flags & PF_EXITING))
-		data = NULL;
+		exiting = true;
 
-	io_uring_cancel_task_requests(ctx, data);
-	io_uring_attempt_task_drop(file, !data);
+	io_uring_attempt_task_drop(file, exiting);
 	return 0;
 }
 
-- 
2.24.0