diff options
Diffstat (limited to 'fs/cachefiles/internal.h')
| -rw-r--r-- | fs/cachefiles/internal.h | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h index cff4b2a5f928..1f2fea902d3e 100644 --- a/fs/cachefiles/internal.h +++ b/fs/cachefiles/internal.h @@ -64,7 +64,47 @@ struct cachefiles_cache { /* - * Debug tracing. + * error_inject.c + */ +#ifdef CONFIG_CACHEFILES_ERROR_INJECTION +extern unsigned int cachefiles_error_injection_state; +extern int cachefiles_register_error_injection(void); +extern void cachefiles_unregister_error_injection(void); + +#else +#define cachefiles_error_injection_state 0 + +static inline int cachefiles_register_error_injection(void) +{ + return 0; +} + +static inline void cachefiles_unregister_error_injection(void) +{ +} +#endif + + +static inline int cachefiles_inject_read_error(void) +{ + return cachefiles_error_injection_state & 2 ? -EIO : 0; +} + +static inline int cachefiles_inject_write_error(void) +{ + return cachefiles_error_injection_state & 2 ? -EIO : + cachefiles_error_injection_state & 1 ? -ENOSPC : + 0; +} + +static inline int cachefiles_inject_remove_error(void) +{ + return cachefiles_error_injection_state & 2 ? -EIO : 0; +} + + +/* + * Debug tracing */ extern unsigned cachefiles_debug; #define CACHEFILES_DEBUG_KENTER 1 |