diff options
Diffstat (limited to 'include/linux/liveupdate.h')
| -rw-r--r-- | include/linux/liveupdate.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/liveupdate.h b/include/linux/liveupdate.h index 63ea5417de84..6051abc0612c 100644 --- a/include/linux/liveupdate.h +++ b/include/linux/liveupdate.h @@ -25,6 +25,7 @@ struct file; /** * struct liveupdate_file_op_args - Arguments for file operation callbacks. * @handler: The file handler being called. + * @session: The session this file belongs to. * @retrieve_status: The retrieve status for the 'can_finish / finish' * operation. A value of 0 means the retrieve has not been * attempted, a positive value means the retrieve was @@ -45,6 +46,7 @@ struct file; */ struct liveupdate_file_op_args { struct liveupdate_file_handler *handler; + struct liveupdate_session *session; int retrieve_status; struct file *file; u64 serialized_data; @@ -247,6 +249,14 @@ void liveupdate_flb_put_incoming(struct liveupdate_flb *flb); int liveupdate_flb_get_outgoing(struct liveupdate_flb *flb, void **objp); void liveupdate_flb_put_outgoing(struct liveupdate_flb *flb); +/* kernel can internally retrieve files */ +int liveupdate_get_file_incoming(struct liveupdate_session *s, u64 token, + struct file **filep); + +/* Get a token for an outgoing file, or -ENOENT if file is not preserved */ +int liveupdate_get_token_outgoing(struct liveupdate_session *s, + struct file *file, u64 *tokenp); + #else /* CONFIG_LIVEUPDATE */ static inline bool liveupdate_enabled(void) @@ -299,5 +309,17 @@ static inline void liveupdate_flb_put_outgoing(struct liveupdate_flb *flb) { } +static inline int liveupdate_get_file_incoming(struct liveupdate_session *s, + u64 token, struct file **filep) +{ + return -EOPNOTSUPP; +} + +static inline int liveupdate_get_token_outgoing(struct liveupdate_session *s, + struct file *file, u64 *tokenp) +{ + return -EOPNOTSUPP; +} + #endif /* CONFIG_LIVEUPDATE */ #endif /* _LINUX_LIVEUPDATE_H */ |