io_uring: rename io_file_put()

to #28736503

commit 9f13c35b33fddb186beab9ef21c555a01e45f4d7 upstream

io_file_put() deals with flushing state's file refs, adding "state" to
its name makes it a bit clearer. Also, avoid double check of
state->file in __io_file_get() in some cases.
Signed-off-by: NPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Signed-off-by: NXiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Acked-by: NJoseph Qi <joseph.qi@linux.alibaba.com>

fs/io_uring.c

@@ -1984,15 +1984,19 @@ static void io_iopoll_req_issued(struct io_kiocb *req)
 		wake_up(&ctx->sqo_wait);
 }
 
-static void io_file_put(struct io_submit_state *state)
+static void __io_state_file_put(struct io_submit_state *state)
 {
-	if (state->file) {
 	int diff = state->has_refs - state->used_refs;
 
 	if (diff)
 		fput_many(state->file, diff);
 	state->file = NULL;
-	}
+}
+
+static inline void io_state_file_put(struct io_submit_state *state)
+{
+	if (state->file)
+		__io_state_file_put(state);
 }
 
 /*
@@ -2011,7 +2015,7 @@ static struct file *__io_file_get(struct io_submit_state *state, int fd)
 			state->ios_left--;
 			return state->file;
 		}
-		io_file_put(state);
+		__io_state_file_put(state);
 	}
 	state->file = fget_many(fd, state->ios_left);
 	if (!state->file)
@@ -5713,7 +5717,7 @@ static int io_submit_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe,
 static void io_submit_state_end(struct io_submit_state *state)
 {
 	blk_finish_plug(&state->plug);
-	io_file_put(state);
+	io_state_file_put(state);
 	if (state->free_reqs)
 		kmem_cache_free_bulk(req_cachep, state->free_reqs, state->reqs);
 }