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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-05-18 16:21:43 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-06-01 11:23:12 +0300 |
| commit | cd6d8567a42907d4e7add0b08f9a2d846690fc65 (patch) | |
| tree | c86567ce86f98b01c0c150d8fe6625321c8de93c /drivers/mtd/ubi/debug.h | |
| parent | 18073733247dc0c31e07f3a87f3267fe8d7e7022 (diff) | |
| download | blackbird-obmc-linux-cd6d8567a42907d4e7add0b08f9a2d846690fc65.tar.gz blackbird-obmc-linux-cd6d8567a42907d4e7add0b08f9a2d846690fc65.zip | |
UBI: switch debugging tests knobs to debugfs
Kill the UBI 'debug_tsts' module parameter and switch to debugfs. Create
per-test mode files there. E.g., to enable bit-flips emulation you may just do:
echo 1 > /sys/kernel/debug/ubi/ubi0/tst_emulate_bitflips
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/debug.h')
| -rw-r--r-- | drivers/mtd/ubi/debug.h | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h index ef97c12fe9b8..65b5b76cc379 100644 --- a/drivers/mtd/ubi/debug.h +++ b/drivers/mtd/ubi/debug.h @@ -85,35 +85,30 @@ void ubi_debugfs_exit_dev(struct ubi_device *ubi); * * @chk_gen: if UBI general extra checks are enabled * @chk_io: if UBI I/O extra checks are enabled + * @disable_bgt: disable the background task for testing purposes + * @emulate_bitflips: emulate bit-flips for testing purposes + * @emulate_io_failures: emulate write/erase failures for testing purposes * @dfs_dir_name: name of debugfs directory containing files of this UBI device * @dfs_dir: direntry object of the UBI device debugfs directory * @dfs_chk_gen: debugfs knob to enable UBI general extra checks * @dfs_chk_io: debugfs knob to enable UBI I/O extra checks + * @dfs_disable_bgt: debugfs knob to disable the background task + * @dfs_emulate_bitflips: debugfs knob to emulate bit-flips + * @dfs_emulate_io_failures: debugfs knob to emulate write/erase failures */ struct ubi_debug_info { unsigned int chk_gen:1; unsigned int chk_io:1; + unsigned int disable_bgt:1; + unsigned int emulate_bitflips:1; + unsigned int emulate_io_failures:1; char dfs_dir_name[UBI_DFS_DIR_LEN + 1]; struct dentry *dfs_dir; struct dentry *dfs_chk_gen; struct dentry *dfs_chk_io; -}; - -extern unsigned int ubi_tst_flags; - -/* - * Special testing flags. - * - * UBIFS_TST_DISABLE_BGT: disable the background thread - * UBI_TST_EMULATE_BITFLIPS: emulate bit-flips - * UBI_TST_EMULATE_WRITE_FAILURES: emulate write failures - * UBI_TST_EMULATE_ERASE_FAILURES: emulate erase failures - */ -enum { - UBI_TST_DISABLE_BGT = 0x1, - UBI_TST_EMULATE_BITFLIPS = 0x2, - UBI_TST_EMULATE_WRITE_FAILURES = 0x4, - UBI_TST_EMULATE_ERASE_FAILURES = 0x8, + struct dentry *dfs_disable_bgt; + struct dentry *dfs_emulate_bitflips; + struct dentry *dfs_emulate_io_failures; }; /** @@ -125,7 +120,7 @@ enum { */ static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi) { - return ubi_tst_flags & UBI_TST_DISABLE_BGT; + return ubi->dbg->disable_bgt; } /** @@ -136,7 +131,7 @@ static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi) */ static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi) { - if (ubi_tst_flags & UBI_TST_EMULATE_BITFLIPS) + if (ubi->dbg->emulate_bitflips) return !(random32() % 200); return 0; } @@ -150,7 +145,7 @@ static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi) */ static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi) { - if (ubi_tst_flags & UBI_TST_EMULATE_WRITE_FAILURES) + if (ubi->dbg->emulate_io_failures) return !(random32() % 500); return 0; } @@ -164,7 +159,7 @@ static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi) */ static inline int ubi_dbg_is_erase_failure(const struct ubi_device *ubi) { - if (ubi_tst_flags & UBI_TST_EMULATE_ERASE_FAILURES) + if (ubi->dbg->emulate_io_failures) return !(random32() % 400); return 0; } |
