diff options
| 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.c | |
| parent | UBI: make it possible to use struct ubi_device in debug.h (diff) | |
| download | linux-dev-cd6d8567a42907d4e7add0b08f9a2d846690fc65.tar.xz linux-dev-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.c')
| -rw-r--r-- | drivers/mtd/ubi/debug.c | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c index dce1227929f1..ab80c0debac8 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -30,13 +30,6 @@ #include <linux/debugfs.h> #include <linux/uaccess.h> #include <linux/module.h> -#include <linux/moduleparam.h> - -unsigned int ubi_tst_flags; - -module_param_named(debug_tsts, ubi_tst_flags, uint, S_IRUGO | S_IWUSR); - -MODULE_PARM_DESC(debug_tsts, "Debug special test flags"); /** * ubi_dbg_dump_ec_hdr - dump an erase counter header. @@ -318,6 +311,12 @@ 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_disable_bgt) + val = d->disable_bgt; + else if (dent == d->dfs_emulate_bitflips) + val = d->emulate_bitflips; + else if (dent == d->dfs_emulate_io_failures) + val = d->emulate_io_failures; else { count = -EINVAL; goto out; @@ -373,6 +372,12 @@ 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_disable_bgt) + d->disable_bgt = val; + else if (dent == d->dfs_emulate_bitflips) + d->emulate_bitflips = val; + else if (dent == d->dfs_emulate_io_failures) + d->emulate_io_failures = val; else count = -EINVAL; @@ -442,6 +447,27 @@ int ubi_debugfs_init_dev(struct ubi_device *ubi) goto out_remove; d->dfs_chk_io = dent; + fname = "tst_disable_bgt"; + 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_disable_bgt = dent; + + fname = "tst_emulate_bitflips"; + 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_emulate_bitflips = dent; + + fname = "tst_emulate_io_failures"; + 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_emulate_io_failures = dent; + return 0; out_remove: |