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 #define PSTORE_DEFAULT_KMSG_BYTES 10240
  10 extern unsigned long kmsg_bytes;
  11
  12 #ifdef CONFIG_PSTORE_FTRACE
  13 extern void pstore_register_ftrace(void);
  14 extern void pstore_unregister_ftrace(void);
  15 ssize_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
  18 static inline void pstore_register_ftrace(void) {}
  19 static inline void pstore_unregister_ftrace(void) {}
  20 static inline ssize_t
  21 pstore_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
  30 extern void pstore_register_pmsg(void);
  31 extern void pstore_unregister_pmsg(void);
  32 #else
  33 static inline void pstore_register_pmsg(void) {}
  34 static inline void pstore_unregister_pmsg(void) {}
  35 #endif
  36
  37 extern struct pstore_info *psinfo;
  38
  39 extern void     pstore_set_kmsg_bytes(int);
  40 extern void     pstore_get_records(int);
  41 extern void     pstore_get_backend_records(struct pstore_info *psi,
  42                                            struct dentry *root, int quiet);
  43 extern int      pstore_put_backend_records(struct pstore_info *psi);
  44 extern int      pstore_mkfile(struct dentry *root,
  45                               struct pstore_record *record);
  46 extern void     pstore_record_init(struct pstore_record *record,
  47                                    struct pstore_info *psi);
  48
  49 /* Called during pstore init/exit. */
  50 int __init      pstore_init_fs(void);
  51 void __exit     pstore_exit_fs(void);
  52
  53 #endif