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#define PSTORE_DEFAULT_KMSG_BYTES 10240 10extern unsigned long kmsg_bytes; 11 12#ifdef CONFIG_PSTORE_FTRACE 13extern void pstore_register_ftrace(void); 14extern void pstore_unregister_ftrace(void); 15ssize_t pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size, 16 const char *src_log, size_t src_log_size); 17#else 18static inline void pstore_register_ftrace(void) {} 19static inline void pstore_unregister_ftrace(void) {} 20static inline ssize_t 21pstore_ftrace_combine_log(char **dest_log, size_t *dest_log_size, 22 const char *src_log, size_t src_log_size) 23{ 24 *dest_log_size = 0; 25 return 0; 26} 27#endif 28 29#ifdef CONFIG_PSTORE_PMSG 30extern void pstore_register_pmsg(void); 31extern void pstore_unregister_pmsg(void); 32#else 33static inline void pstore_register_pmsg(void) {} 34static inline void pstore_unregister_pmsg(void) {} 35#endif 36 37extern struct pstore_info *psinfo; 38 39extern void pstore_set_kmsg_bytes(int); 40extern void pstore_get_records(int); 41extern void pstore_get_backend_records(struct pstore_info *psi, 42 struct dentry *root, int quiet); 43extern int pstore_put_backend_records(struct pstore_info *psi); 44extern int pstore_mkfile(struct dentry *root, 45 struct pstore_record *record); 46extern void pstore_record_init(struct pstore_record *record, 47 struct pstore_info *psi); 48 49/* Called during pstore init/exit. */ 50int __init pstore_init_fs(void); 51void __exit pstore_exit_fs(void); 52 53#ifdef CONFIG_PSTORE_BLACKBOX 54extern bool pstore_ready; /* flag which pstore_blk is ready */ 55#endif 56#endif 57