diff options
Diffstat (limited to 'kernel/liveupdate/luo_internal.h')
| -rw-r--r-- | kernel/liveupdate/luo_internal.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/kernel/liveupdate/luo_internal.h b/kernel/liveupdate/luo_internal.h index 8612687b2000..05ae91695ec6 100644 --- a/kernel/liveupdate/luo_internal.h +++ b/kernel/liveupdate/luo_internal.h @@ -19,4 +19,33 @@ */ #define luo_restore_fail(__fmt, ...) panic(__fmt, ##__VA_ARGS__) +/** + * struct luo_session - Represents an active or incoming Live Update session. + * @name: A unique name for this session, used for identification and + * retrieval. + * @ser: Pointer to the serialized data for this session. + * @list: A list_head member used to link this session into a global list + * of either outgoing (to be preserved) or incoming (restored from + * previous kernel) sessions. + * @retrieved: A boolean flag indicating whether this session has been + * retrieved by a consumer in the new kernel. + * @mutex: protects fields in the luo_session. + */ +struct luo_session { + char name[LIVEUPDATE_SESSION_NAME_LENGTH]; + struct luo_session_ser *ser; + struct list_head list; + bool retrieved; + struct mutex mutex; +}; + +int luo_session_create(const char *name, struct file **filep); +int luo_session_retrieve(const char *name, struct file **filep); +int __init luo_session_setup_outgoing(void *fdt); +int __init luo_session_setup_incoming(void *fdt); +int luo_session_serialize(void); +int luo_session_deserialize(void); +bool luo_session_quiesce(void); +void luo_session_resume(void); + #endif /* _LINUX_LUO_INTERNAL_H */ |