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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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#ifndef __UBI_DEBUG_H__#define __UBI_DEBUG_H__
void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len);void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr);void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);
#include <linux/random.h>
#define ubi_assert(expr) do { \ if (unlikely(!(expr))) { \ pr_crit("UBI assert failed in %s at %u (pid %d)\n", \ __func__, __LINE__, current->pid); \ dump_stack(); \ } \} while (0)
#define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a) \ print_hex_dump(l, ps, pt, r, g, b, len, a)
#define ubi_dbg_msg(type, fmt, ...) \ pr_debug("UBI DBG " type " (pid %d): " fmt "\n", current->pid, \ ##__VA_ARGS__)
/* General debugging messages */#define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__)/* Messages from the eraseblock association sub-system */#define dbg_eba(fmt, ...) ubi_dbg_msg("eba", fmt, ##__VA_ARGS__)/* Messages from the wear-leveling sub-system */#define dbg_wl(fmt, ...) ubi_dbg_msg("wl", fmt, ##__VA_ARGS__)/* Messages from the input/output sub-system */#define dbg_io(fmt, ...) ubi_dbg_msg("io", fmt, ##__VA_ARGS__)/* Initialization and build messages */#define dbg_bld(fmt, ...) ubi_dbg_msg("bld", fmt, ##__VA_ARGS__)
void ubi_dump_vol_info(const struct ubi_volume *vol);void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx);void ubi_dump_av(const struct ubi_ainf_volume *av);void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type);void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req);int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len);int ubi_debugfs_init(void);void ubi_debugfs_exit(void);int ubi_debugfs_init_dev(struct ubi_device *ubi);void ubi_debugfs_exit_dev(struct ubi_device *ubi);
/** * The following function is a legacy implementation of UBI fault-injection * hook. When using more powerful fault injection capabilities, the legacy * fault injection interface should be retained. */int ubi_dbg_power_cut(struct ubi_device *ubi, int caller);
static inline int ubi_dbg_bitflip(const struct ubi_device *ubi){ if (ubi->dbg.emulate_bitflips) return !get_random_u32_below(200); return 0;}
static inline int ubi_dbg_write_failure(const struct ubi_device *ubi){ if (ubi->dbg.emulate_io_failures) return !get_random_u32_below(500); return 0;}
static inline int ubi_dbg_erase_failure(const struct ubi_device *ubi){ if (ubi->dbg.emulate_io_failures) return !get_random_u32_below(400); return 0;}
/** * MASK_XXX: Mask for emulate_failures in ubi_debug_info.The mask is used to * precisely control the type and process of fault injection. *//* Emulate a power cut when writing EC/VID header */#define MASK_POWER_CUT_EC (1 << 0)#define MASK_POWER_CUT_VID (1 << 1)/* Emulate a power cut when writing data*/#define MASK_POWER_CUT_DATA (1 << 2)/* Emulate bit-flips */#define MASK_BITFLIPS (1 << 3)/* Emulate ecc error */#define MASK_ECCERR (1 << 4)/* Emulates -EIO during data read */#define MASK_READ_FAILURE (1 << 5)#define MASK_READ_FAILURE_EC (1 << 6)#define MASK_READ_FAILURE_VID (1 << 7)/* Emulates -EIO during data write */#define MASK_WRITE_FAILURE (1 << 8)/* Emulates -EIO during erase a PEB*/#define MASK_ERASE_FAILURE (1 << 9)/* Return UBI_IO_FF when reading EC/VID header */#define MASK_IO_FF_EC (1 << 10)#define MASK_IO_FF_VID (1 << 11)/* Return UBI_IO_FF_BITFLIPS when reading EC/VID header */#define MASK_IO_FF_BITFLIPS_EC (1 << 12)#define MASK_IO_FF_BITFLIPS_VID (1 << 13)/* Return UBI_IO_BAD_HDR when reading EC/VID header */#define MASK_BAD_HDR_EC (1 << 14)#define MASK_BAD_HDR_VID (1 << 15)/* Return UBI_IO_BAD_HDR_EBADMSG when reading EC/VID header */#define MASK_BAD_HDR_EBADMSG_EC (1 << 16)#define MASK_BAD_HDR_EBADMSG_VID (1 << 17)
#ifdef CONFIG_MTD_UBI_FAULT_INJECTION
extern bool should_fail_eccerr(void);extern bool should_fail_bitflips(void);extern bool should_fail_read_failure(void);extern bool should_fail_write_failure(void);extern bool should_fail_erase_failure(void);extern bool should_fail_power_cut(void);extern bool should_fail_io_ff(void);extern bool should_fail_io_ff_bitflips(void);extern bool should_fail_bad_hdr(void);extern bool should_fail_bad_hdr_ebadmsg(void);
static inline bool ubi_dbg_fail_bitflip(const struct ubi_device *ubi){ if (ubi->dbg.emulate_failures & MASK_BITFLIPS) return should_fail_bitflips(); return false;}
static inline bool ubi_dbg_fail_write(const struct ubi_device *ubi){ if (ubi->dbg.emulate_failures & MASK_WRITE_FAILURE) return should_fail_write_failure(); return false;}
static inline bool ubi_dbg_fail_erase(const struct ubi_device *ubi){ if (ubi->dbg.emulate_failures & MASK_ERASE_FAILURE) return should_fail_erase_failure(); return false;}
static inline bool ubi_dbg_fail_power_cut(const struct ubi_device *ubi, unsigned int caller){ if (ubi->dbg.emulate_failures & caller) return should_fail_power_cut(); return false;}
static inline bool ubi_dbg_fail_read(const struct ubi_device *ubi, unsigned int caller){ if (ubi->dbg.emulate_failures & caller) return should_fail_read_failure(); return false;}
static inline bool ubi_dbg_fail_eccerr(const struct ubi_device *ubi){ if (ubi->dbg.emulate_failures & MASK_ECCERR) return should_fail_eccerr(); return false;}
static inline bool ubi_dbg_fail_ff(const struct ubi_device *ubi, unsigned int caller){ if (ubi->dbg.emulate_failures & caller) return should_fail_io_ff(); return false;}
static inline bool ubi_dbg_fail_ff_bitflips(const struct ubi_device *ubi, unsigned int caller){ if (ubi->dbg.emulate_failures & caller) return should_fail_io_ff_bitflips(); return false;}
static inline bool ubi_dbg_fail_bad_hdr(const struct ubi_device *ubi, unsigned int caller){ if (ubi->dbg.emulate_failures & caller) return should_fail_bad_hdr(); return false;}
static inline bool ubi_dbg_fail_bad_hdr_ebadmsg(const struct ubi_device *ubi, unsigned int caller){ if (ubi->dbg.emulate_failures & caller) return should_fail_bad_hdr_ebadmsg(); return false;}#else /* CONFIG_MTD_UBI_FAULT_INJECTION */
#define ubi_dbg_fail_bitflip(u) false#define ubi_dbg_fail_write(u) false#define ubi_dbg_fail_erase(u) false#define ubi_dbg_fail_power_cut(u, c) false#define ubi_dbg_fail_read(u, c) false#define ubi_dbg_fail_eccerr(u) false#define ubi_dbg_fail_ff(u, c) false#define ubi_dbg_fail_ff_bitflips(u, v) false#define ubi_dbg_fail_bad_hdr(u, c) false#define ubi_dbg_fail_bad_hdr_ebadmsg(u, c) false
#endif
/** * ubi_dbg_is_power_cut - if it is time to emulate power cut. * @ubi: UBI device description object * * Returns true if power cut should be emulated, otherwise returns false. */static inline bool ubi_dbg_is_power_cut(struct ubi_device *ubi, unsigned int caller){ if (ubi_dbg_power_cut(ubi, caller)) return true; return ubi_dbg_fail_power_cut(ubi, caller);}
/** * ubi_dbg_is_bitflip - if it is time to emulate a bit-flip. * @ubi: UBI device description object * * Returns true if a bit-flip should be emulated, otherwise returns false. */static inline bool ubi_dbg_is_bitflip(const struct ubi_device *ubi){ if (ubi_dbg_bitflip(ubi)) return true; return ubi_dbg_fail_bitflip(ubi);}
/** * ubi_dbg_is_write_failure - if it is time to emulate a write failure. * @ubi: UBI device description object * * Returns true if a write failure should be emulated, otherwise returns * false. */static inline bool ubi_dbg_is_write_failure(const struct ubi_device *ubi){ if (ubi_dbg_write_failure(ubi)) return true; return ubi_dbg_fail_write(ubi);}
/** * ubi_dbg_is_erase_failure - if its time to emulate an erase failure. * @ubi: UBI device description object * * Returns true if an erase failure should be emulated, otherwise returns * false. */static inline bool ubi_dbg_is_erase_failure(const struct ubi_device *ubi){ if (ubi_dbg_erase_failure(ubi)) return true; return ubi_dbg_fail_erase(ubi);}
/** * ubi_dbg_is_eccerr - if it is time to emulate ECC error. * @ubi: UBI device description object * * Returns true if a ECC error should be emulated, otherwise returns false. */static inline bool ubi_dbg_is_eccerr(const struct ubi_device *ubi){ return ubi_dbg_fail_eccerr(ubi);}
/** * ubi_dbg_is_read_failure - if it is time to emulate a read failure. * @ubi: UBI device description object * * Returns true if a read failure should be emulated, otherwise returns * false. */static inline bool ubi_dbg_is_read_failure(const struct ubi_device *ubi, unsigned int caller){ return ubi_dbg_fail_read(ubi, caller);}
/** * ubi_dbg_is_ff - if it is time to emulate that read region is only 0xFF. * @ubi: UBI device description object * * Returns true if read region should be emulated 0xFF, otherwise * returns false. */static inline bool ubi_dbg_is_ff(const struct ubi_device *ubi, unsigned int caller){ return ubi_dbg_fail_ff(ubi, caller);}
/** * ubi_dbg_is_ff_bitflips - if it is time to emulate that read region is only 0xFF * with error reported by the MTD driver * * @ubi: UBI device description object * * Returns true if read region should be emulated 0xFF and error * reported by the MTD driver, otherwise returns false. */static inline bool ubi_dbg_is_ff_bitflips(const struct ubi_device *ubi, unsigned int caller){ return ubi_dbg_fail_ff_bitflips(ubi, caller);}
/** * ubi_dbg_is_bad_hdr - if it is time to emulate a bad header * @ubi: UBI device description object * * Returns true if a bad header error should be emulated, otherwise * returns false. */static inline bool ubi_dbg_is_bad_hdr(const struct ubi_device *ubi, unsigned int caller){ return ubi_dbg_fail_bad_hdr(ubi, caller);}
/** * ubi_dbg_is_bad_hdr_ebadmsg - if it is time to emulate a bad header with * ECC error. * * @ubi: UBI device description object * * Returns true if a bad header with ECC error should be emulated, otherwise * returns false. */static inline bool ubi_dbg_is_bad_hdr_ebadmsg(const struct ubi_device *ubi, unsigned int caller){ return ubi_dbg_fail_bad_hdr_ebadmsg(ubi, caller);}
/** * ubi_dbg_is_bgt_disabled - if the background thread is disabled. * @ubi: UBI device description object * * Returns non-zero if the UBI background thread is disabled for testing * purposes. */static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi){ return ubi->dbg.disable_bgt;}
static inline int ubi_dbg_chk_io(const struct ubi_device *ubi){ return ubi->dbg.chk_io;}
static inline int ubi_dbg_chk_gen(const struct ubi_device *ubi){ return ubi->dbg.chk_gen;}
static inline int ubi_dbg_chk_fastmap(const struct ubi_device *ubi){ return ubi->dbg.chk_fastmap;}
static inline void ubi_enable_dbg_chk_fastmap(struct ubi_device *ubi){ ubi->dbg.chk_fastmap = 1;}
#endif /* !__UBI_DEBUG_H__ */