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-rw-r--r--fs/io_uring.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 46cc1bc48062..a0a58c181eaf 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -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);