1 #ifndef _LIVEPATCH_PATCH_H
2 #define _LIVEPATCH_PATCH_H
4 #include <linux/livepatch.h>
5 #include <linux/list.h>
6 #include <linux/ftrace.h>
9 * struct klp_ops - structure for tracking registered ftrace ops structs
11 * A single ftrace_ops is shared between all enabled replacement functions
12 * (klp_func structs) which have the same old_addr. This allows the switch
13 * between function versions to happen instantaneously by updating the klp_ops
14 * struct's func_stack list. The winner is the klp_func at the top of the
15 * func_stack (front of the list).
17 * @node: node for the global klp_ops list
18 * @func_stack: list head for the stack of klp_func's (active func is on top)
19 * @fops: registered ftrace ops struct
22 struct list_head node;
23 struct list_head func_stack;
24 struct ftrace_ops fops;
27 struct klp_ops *klp_find_ops(unsigned long old_addr);
29 int klp_patch_object(struct klp_object *obj);
30 void klp_unpatch_object(struct klp_object *obj);
31 void klp_unpatch_objects(struct klp_patch *patch);
33 #endif /* _LIVEPATCH_PATCH_H */