fs/pstore/internal.h

   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