io_uring/filetable: remove io_file_from_index() helper

It's only used in fdinfo, nothing really gained from having this helper.

Signed-off-by: Jens Axboe <[email protected]>

Author: axboe

io_uring/fdinfo.c

@@ -167,8 +167,10 @@ __cold void io_uring_show_fdinfo(struct seq_file *m, struct file *file)
 	seq_printf(m, "SqWorkTime:\t%llu\n", sq_work_time);
 	seq_printf(m, "UserFiles:\t%u\n", ctx->file_table.data.nr);
 	for (i = 0; has_lock && i < ctx->file_table.data.nr; i++) {
-		struct file *f = io_file_from_index(&ctx->file_table, i);
+		struct file *f = NULL;
 
+		if (ctx->file_table.data.nodes[i])
+			f = io_slot_file(ctx->file_table.data.nodes[i]);
 		if (f)
 			seq_printf(m, "%5u: %s\n", i, file_dentry(f)->d_iname);
 		else

io_uring/filetable.h

@@ -49,16 +49,6 @@ static inline struct file *io_slot_file(struct io_rsrc_node *node)
 	return (struct file *)(node->file_ptr & FFS_MASK);
 }
 
-static inline struct file *io_file_from_index(struct io_file_table *table,
-					      int index)
-{
-	struct io_rsrc_node *node = io_rsrc_node_lookup(&table->data, index);
-
-	if (node)
-		return io_slot_file(node);
-	return NULL;
-}
-
 static inline void io_fixed_file_set(struct io_rsrc_node *node,
 				     struct file *file)
 {