Commit e46a7950 authored by Jens Axboe's avatar Jens Axboe
Browse files

io_uring: file switch work needs to get flushed on exit 



We currently flush early, but if we have something in progress and a
new switch is scheduled, we need to ensure to flush after our teardown
as well.

Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent b14cca0c

fs/io_uring.c

+4 −1
Original line number Diff line number Diff line
@@ -5089,11 +5089,14 @@ static int io_sqe_files_unregister(struct io_ring_ctx *ctx) 
		return -ENXIO;



	/* protect against inflight atomic switch, which drops the ref */

	flush_work(&data->ref_work);

	percpu_ref_get(&data->refs);

	/* wait for existing switches */

	flush_work(&data->ref_work);

	percpu_ref_kill_and_confirm(&data->refs, io_file_ref_kill);

	wait_for_completion(&data->done);

	percpu_ref_put(&data->refs);

	/* flush potential new switch */

	flush_work(&data->ref_work);

	percpu_ref_exit(&data->refs);



	__io_sqe_files_unregister(ctx);