io_uring: move dropping of files into separate helper

No functional changes in this patch, prep patch for grabbing references
to the files_struct.

Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/fs/io_uring.c b/fs/io_uring.c
index 867145fb149cef6589dd0e946e20fe8bd2ac88b3..73c5dbb1591d3fcde734d6feaa2144cc5794284f 100644 (file)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -5648,6 +5648,20 @@ static int io_req_defer(struct io_kiocb *req, const struct io_uring_sqe *sqe)
        return -EIOCBQUEUED;
 }
 
+static void io_req_drop_files(struct io_kiocb *req)
+{
+       struct io_ring_ctx *ctx = req->ctx;
+       unsigned long flags;
+
+       spin_lock_irqsave(&ctx->inflight_lock, flags);
+       list_del(&req->inflight_entry);
+       if (waitqueue_active(&ctx->inflight_wait))
+               wake_up(&ctx->inflight_wait);
+       spin_unlock_irqrestore(&ctx->inflight_lock, flags);
+       req->flags &= ~REQ_F_INFLIGHT;
+       req->work.files = NULL;
+}
+
 static void __io_clean_op(struct io_kiocb *req)
 {
        struct io_async_ctx *io = req->io;
@@ -5697,17 +5711,8 @@ static void __io_clean_op(struct io_kiocb *req)
                req->flags &= ~REQ_F_NEED_CLEANUP;
        }
 
-       if (req->flags & REQ_F_INFLIGHT) {
-               struct io_ring_ctx *ctx = req->ctx;
-               unsigned long flags;
-
-               spin_lock_irqsave(&ctx->inflight_lock, flags);
-               list_del(&req->inflight_entry);
-               if (waitqueue_active(&ctx->inflight_wait))
-                       wake_up(&ctx->inflight_wait);
-               spin_unlock_irqrestore(&ctx->inflight_lock, flags);
-               req->flags &= ~REQ_F_INFLIGHT;
-       }
+       if (req->flags & REQ_F_INFLIGHT)
+               io_req_drop_files(req);
 }
 
 static int io_issue_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe,