1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PSTORE_INTERNAL_H__
3 #define __PSTORE_INTERNAL_H__
4
5 #include <linux/types.h>
6 #include <linux/time.h>
7 #include <linux/pstore.h>
8
9 extern unsigned long kmsg_bytes;
10
11 #ifdef CONFIG_PSTORE_FTRACE
12 extern void pstore_register_ftrace(void);
13 extern void pstore_unregister_ftrace(void);
14 ssize_t pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size,
15 const char *src_log, size_t src_log_size);
16 #else
17 static inline void pstore_register_ftrace(void) {}
18 static inline void pstore_unregister_ftrace(void) {}
19 static inline ssize_t
20 pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size,
21 const char *src_log, size_t src_log_size)
22 {
23 *dest_log_size = 0;
24 return 0;
25 }
26 #endif
27
28 #ifdef CONFIG_PSTORE_PMSG
29 extern void pstore_register_pmsg(void);
30 extern void pstore_unregister_pmsg(void);
31 #else
32 static inline void pstore_register_pmsg(void) {}
33 static inline void pstore_unregister_pmsg(void) {}
34 #endif
35
36 extern struct pstore_info *psinfo;
37
38 extern void pstore_set_kmsg_bytes(int);
39 extern void pstore_get_records(int);
40 extern void pstore_get_backend_records(struct pstore_info *psi,
41 struct dentry *root, int quiet);
42 extern int pstore_put_backend_records(struct pstore_info *psi);
43 extern int pstore_mkfile(struct dentry *root,
44 struct pstore_record *record);
45 extern void pstore_record_init(struct pstore_record *record,
46 struct pstore_info *psi);
47
48 /* Called during pstore init/exit. */
49 int __init pstore_init_fs(void);
50 void __exit pstore_exit_fs(void);
51
52 #endif
53
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