kernel/livepatch/core.h
Source file repositories/reference/linux-study-clean/kernel/livepatch/core.h
File Facts
- System
- Linux kernel
- Corpus path
kernel/livepatch/core.h- Extension
.h- Size
- 1503 bytes
- Lines
- 60
- Domain
- Core OS
- Bucket
- Scheduler, Processes, Timers, Sync, And Syscalls
- Inferred role
- Core OS: implementation source
- Status
- source implementation candidate
Why This File Exists
Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/livepatch.h
Detected Declarations
function klp_is_object_loadedfunction klp_pre_patch_callbackfunction klp_post_patch_callbackfunction klp_pre_unpatch_callbackfunction klp_post_unpatch_callback
Annotated Snippet
#ifndef _LIVEPATCH_CORE_H
#define _LIVEPATCH_CORE_H
#include <linux/livepatch.h>
extern struct mutex klp_mutex;
extern struct list_head klp_patches;
#define klp_for_each_patch_safe(patch, tmp_patch) \
list_for_each_entry_safe(patch, tmp_patch, &klp_patches, list)
#define klp_for_each_patch(patch) \
list_for_each_entry(patch, &klp_patches, list)
void klp_free_patch_async(struct klp_patch *patch);
void klp_free_replaced_patches_async(struct klp_patch *new_patch);
void klp_unpatch_replaced_patches(struct klp_patch *new_patch);
void klp_discard_nops(struct klp_patch *new_patch);
static inline bool klp_is_object_loaded(struct klp_object *obj)
{
return !obj->name || obj->mod;
}
static inline int klp_pre_patch_callback(struct klp_object *obj)
{
int ret = 0;
if (obj->callbacks.pre_patch)
ret = (*obj->callbacks.pre_patch)(obj);
obj->callbacks.post_unpatch_enabled = !ret;
return ret;
}
static inline void klp_post_patch_callback(struct klp_object *obj)
{
if (obj->callbacks.post_patch)
(*obj->callbacks.post_patch)(obj);
}
static inline void klp_pre_unpatch_callback(struct klp_object *obj)
{
if (obj->callbacks.pre_unpatch)
(*obj->callbacks.pre_unpatch)(obj);
}
static inline void klp_post_unpatch_callback(struct klp_object *obj)
{
if (obj->callbacks.post_unpatch_enabled &&
obj->callbacks.post_unpatch)
(*obj->callbacks.post_unpatch)(obj);
obj->callbacks.post_unpatch_enabled = false;
}
#endif /* _LIVEPATCH_CORE_H */
Annotation
- Immediate include surface: `linux/livepatch.h`.
- Detected declarations: `function klp_is_object_loaded`, `function klp_pre_patch_callback`, `function klp_post_patch_callback`, `function klp_pre_unpatch_callback`, `function klp_post_unpatch_callback`.
- Atlas domain: Core OS / Scheduler, Processes, Timers, Sync, And Syscalls.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.