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35 lines
1.1 KiB
35 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _LIVEPATCH_PATCH_H |
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#define _LIVEPATCH_PATCH_H |
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#include <linux/livepatch.h> |
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#include <linux/list.h> |
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#include <linux/ftrace.h> |
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/** |
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* struct klp_ops - structure for tracking registered ftrace ops structs |
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* |
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* A single ftrace_ops is shared between all enabled replacement functions |
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* (klp_func structs) which have the same old_func. This allows the switch |
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* between function versions to happen instantaneously by updating the klp_ops |
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* struct's func_stack list. The winner is the klp_func at the top of the |
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* func_stack (front of the list). |
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* |
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* @node: node for the global klp_ops list |
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* @func_stack: list head for the stack of klp_func's (active func is on top) |
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* @fops: registered ftrace ops struct |
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*/ |
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struct klp_ops { |
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struct list_head node; |
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struct list_head func_stack; |
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struct ftrace_ops fops; |
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}; |
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struct klp_ops *klp_find_ops(void *old_func); |
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int klp_patch_object(struct klp_object *obj); |
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void klp_unpatch_object(struct klp_object *obj); |
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void klp_unpatch_objects(struct klp_patch *patch); |
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void klp_unpatch_objects_dynamic(struct klp_patch *patch); |
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#endif /* _LIVEPATCH_PATCH_H */
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