kernel/power/tuxonice_checksum.h

   1 /*
   2  * kernel/power/tuxonice_checksum.h
   3  *
   4  * Copyright (C) 2006-2010 Nigel Cunningham (nigel at tuxonice net)
   5  *
   6  * This file is released under the GPLv2.
   7  *
   8  * This file contains data checksum routines for TuxOnIce,
   9  * using cryptoapi. They are used to locate any modifications
  10  * made to pageset 2 while we're saving it.
  11  */
  12
  13 #if defined(CONFIG_TOI_CHECKSUM)
  14 extern int toi_checksum_init(void);
  15 extern void toi_checksum_exit(void);
  16 void check_checksums(void);
  17 int allocate_checksum_pages(void);
  18 void free_checksum_pages(void);
  19 char *tuxonice_get_next_checksum(void);
  20 int tuxonice_calc_checksum(struct page *page, char *checksum_locn);
  21 #else
  22 static inline int toi_checksum_init(void)
  23 {
  24         return 0;
  25 }
  26
  27 static inline void toi_checksum_exit(void)
  28 {
  29 }
  30
  31 static inline void check_checksums(void)
  32 {
  33 };
  34
  35 static inline int allocate_checksum_pages(void)
  36 {
  37         return 0;
  38 };
  39
  40 static inline void free_checksum_pages(void)
  41 {
  42 };
  43
  44 static inline char *tuxonice_get_next_checksum(void)
  45 {
  46         return NULL;
  47 };
  48
  49 static inline int tuxonice_calc_checksum(struct page *page, char *checksum_locn)
  50 {
  51         return 0;
  52 }
  53 #endif