diff options
author | Richard Weinberger <richard@nod.at> | 2014-09-22 11:44:50 +0200 |
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committer | Richard Weinberger <richard@nod.at> | 2015-03-26 22:46:03 +0100 |
commit | 5fa7fa5dad0cf8f2b47bb8dca91c605c48d282f6 (patch) | |
tree | 1781c7666647ede6e57e8c631b6f1af3ed8361e3 /drivers | |
parent | 5ca97ad83800938e8aeea622821a26d69d2052bf (diff) | |
download | linux-5fa7fa5dad0cf8f2b47bb8dca91c605c48d282f6.tar.bz2 |
UBI: Add initial support for fastmap self checks
Using this debugfs knob fastmap self checks can be controlled.
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Tanya Brokhman <tlinder@codeaurora.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/mtd/ubi/debug.c | 11 | ||||
-rw-r--r-- | drivers/mtd/ubi/debug.h | 5 | ||||
-rw-r--r-- | drivers/mtd/ubi/ubi.h | 4 |
3 files changed, 20 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c index 7335c9ff9d99..224fed085102 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -275,6 +275,8 @@ static ssize_t dfs_file_read(struct file *file, char __user *user_buf, val = d->chk_gen; else if (dent == d->dfs_chk_io) val = d->chk_io; + else if (dent == d->dfs_chk_fastmap) + val = d->chk_fastmap; else if (dent == d->dfs_disable_bgt) val = d->disable_bgt; else if (dent == d->dfs_emulate_bitflips) @@ -336,6 +338,8 @@ static ssize_t dfs_file_write(struct file *file, const char __user *user_buf, d->chk_gen = val; else if (dent == d->dfs_chk_io) d->chk_io = val; + else if (dent == d->dfs_chk_fastmap) + d->chk_fastmap = val; else if (dent == d->dfs_disable_bgt) d->disable_bgt = val; else if (dent == d->dfs_emulate_bitflips) @@ -406,6 +410,13 @@ int ubi_debugfs_init_dev(struct ubi_device *ubi) goto out_remove; d->dfs_chk_io = dent; + fname = "chk_fastmap"; + dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, (void *)ubi_num, + &dfs_fops); + if (IS_ERR_OR_NULL(dent)) + goto out_remove; + d->dfs_chk_fastmap = dent; + fname = "tst_disable_bgt"; dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, (void *)ubi_num, &dfs_fops); diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h index cba89fcd1587..e99ef37a321e 100644 --- a/drivers/mtd/ubi/debug.h +++ b/drivers/mtd/ubi/debug.h @@ -127,4 +127,9 @@ 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; +} #endif /* !__UBI_DEBUG_H__ */ diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 058c84cac8dc..adc633cb89c3 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -356,6 +356,7 @@ struct ubi_wl_entry; * * @chk_gen: if UBI general extra checks are enabled * @chk_io: if UBI I/O extra checks are enabled + * @chk_fastmap: if UBI fastmap 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 @@ -363,6 +364,7 @@ struct ubi_wl_entry; * @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_chk_fastmap: debugfs knob to enable UBI fastmap 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 @@ -370,6 +372,7 @@ struct ubi_wl_entry; struct ubi_debug_info { unsigned int chk_gen:1; unsigned int chk_io:1; + unsigned int chk_fastmap:1; unsigned int disable_bgt:1; unsigned int emulate_bitflips:1; unsigned int emulate_io_failures:1; @@ -377,6 +380,7 @@ struct ubi_debug_info { struct dentry *dfs_dir; struct dentry *dfs_chk_gen; struct dentry *dfs_chk_io; + struct dentry *dfs_chk_fastmap; struct dentry *dfs_disable_bgt; struct dentry *dfs_emulate_bitflips; struct dentry *dfs_emulate_io_failures; |