diff options
Diffstat (limited to 'ubifs-utils/libubifs/ubifs.h')
| -rw-r--r-- | ubifs-utils/libubifs/ubifs.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/ubifs-utils/libubifs/ubifs.h b/ubifs-utils/libubifs/ubifs.h index babaae8..21b0ce0 100644 --- a/ubifs-utils/libubifs/ubifs.h +++ b/ubifs-utils/libubifs/ubifs.h @@ -1029,6 +1029,20 @@ struct ubifs_budg_info { * * @private: private information related to specific situation, eg. fsck. * @assert_failed_cb: callback function to handle assertion failure + * @set_failure_reason_cb: record reasons while certain failure happens + * @get_failure_reason_cb: get failure reasons + * @clear_failure_reason_cb: callback function to clear the error which is + * caused by reading corrupted data or invalid lpt + * @test_and_clear_failure_reason_cb: callback function to check and clear the + * error which is caused by reading corrupted + * data or invalid lpt + * @set_lpt_invalid_cb: callback function to set the invalid lpt status + * @test_lpt_valid_cb: callback function to check whether lpt is corrupted or + * incorrect, should be called before updating lpt + * @can_ignore_failure_cb: callback function to decide whether the failure + * can be ignored + * @handle_failure_cb: callback function to decide whether the failure can be + * handled */ struct ubifs_info { struct ubifs_sb_node *sup_node; @@ -1254,6 +1268,21 @@ struct ubifs_info { void *private; void (*assert_failed_cb)(const struct ubifs_info *c); + void (*set_failure_reason_cb)(const struct ubifs_info *c, + unsigned int reason); + unsigned int (*get_failure_reason_cb)(const struct ubifs_info *c); + void (*clear_failure_reason_cb)(const struct ubifs_info *c); + bool (*test_and_clear_failure_reason_cb)(const struct ubifs_info *c, + unsigned int reason); + void (*set_lpt_invalid_cb)(const struct ubifs_info *c, + unsigned int reason); + bool (*test_lpt_valid_cb)(const struct ubifs_info *c, int lnum, + int old_free, int old_dirty, + int free, int dirty); + bool (*can_ignore_failure_cb)(const struct ubifs_info *c, + unsigned int reason); + bool (*handle_failure_cb)(const struct ubifs_info *c, + unsigned int reason); }; extern atomic_long_t ubifs_clean_zn_cnt; @@ -1502,6 +1531,75 @@ int ubifs_add_snod(const struct ubifs_info *c, struct ubifs_scan_leb *sleb, void ubifs_scanned_corruption(const struct ubifs_info *c, int lnum, int offs, void *buf); +/* Failure reasons which are checked by fsck. */ +enum { + FR_DATA_CORRUPTED = 1, /* Data is corrupted(master/log/orphan/main) */ + FR_TNC_CORRUPTED = 2, /* TNC is corrupted */ + FR_LPT_CORRUPTED = 4, /* LPT is corrupted */ + FR_LPT_INCORRECT = 8 /* Space statistics are wrong */ +}; +/* Callback functions for failure(which can be handled by fsck) happens. */ +static inline void set_failure_reason_callback(const struct ubifs_info *c, + unsigned int reason) +{ + if (c->set_failure_reason_cb) + c->set_failure_reason_cb(c, reason); +} +static inline unsigned int get_failure_reason_callback( + const struct ubifs_info *c) +{ + if (c->get_failure_reason_cb) + return c->get_failure_reason_cb(c); + + return 0; +} +static inline void clear_failure_reason_callback(const struct ubifs_info *c) +{ + if (c->clear_failure_reason_cb) + c->clear_failure_reason_cb(c); +} +static inline bool test_and_clear_failure_reason_callback( + const struct ubifs_info *c, + unsigned int reason) +{ + if (c->test_and_clear_failure_reason_cb) + return c->test_and_clear_failure_reason_cb(c, reason); + + return false; +} +static inline void set_lpt_invalid_callback(const struct ubifs_info *c, + unsigned int reason) +{ + if (c->set_lpt_invalid_cb) + c->set_lpt_invalid_cb(c, reason); +} +static inline bool test_lpt_valid_callback(const struct ubifs_info *c, int lnum, + int old_free, int old_dirty, + int free, int dirty) +{ + if (c->test_lpt_valid_cb) + return c->test_lpt_valid_cb(c, lnum, + old_free, old_dirty, free, dirty); + + return false; +} +static inline bool can_ignore_failure_callback(const struct ubifs_info *c, + unsigned int reason) +{ + if (c->can_ignore_failure_cb) + return c->can_ignore_failure_cb(c, reason); + + return false; +} +static inline bool handle_failure_callback(const struct ubifs_info *c, + unsigned int reason) +{ + if (c->handle_failure_cb) + return c->handle_failure_cb(c, reason); + + return false; +} + /* log.c */ void ubifs_add_bud(struct ubifs_info *c, struct ubifs_bud *bud); void ubifs_create_buds_lists(struct ubifs_info *c); |