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
9extern unsigned int kmsg_bytes;
10
11#ifdef CONFIG_PSTORE_FTRACE
12extern void pstore_register_ftrace(void);
13extern void pstore_unregister_ftrace(void);
14ssize_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
17static inline void pstore_register_ftrace(void) {}
18static inline void pstore_unregister_ftrace(void) {}
19static inline ssize_t
20pstore_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
29extern void pstore_register_pmsg(void);
30extern void pstore_unregister_pmsg(void);
31#else
32static inline void pstore_register_pmsg(void) {}
33static inline void pstore_unregister_pmsg(void) {}
34#endif
35
36extern struct pstore_info *psinfo;
37
38extern void pstore_set_kmsg_bytes(unsigned int bytes);
39extern void pstore_get_records(int);
40extern void pstore_get_backend_records(struct pstore_info *psi,
41 struct dentry *root, int quiet);
42extern int pstore_put_backend_records(struct pstore_info *psi);
43extern int pstore_mkfile(struct dentry *root,
44 struct pstore_record *record);
45extern void pstore_record_init(struct pstore_record *record,
46 struct pstore_info *psi);
47
48/* Called during pstore init/exit. */
49int __init pstore_init_fs(void);
50void __exit pstore_exit_fs(void);
51
52#endif
53

source code of linux/fs/pstore/internal.h