On 10/29/2014 2:45 PM, Richard Weinberger wrote:
Using this debugfs knob fastmap self checks can be controlled.
Reviewed-by: Tanya Brokhman <tlin...@codeaurora.org>
Signed-off-by: Richard Weinberger <rich...@nod.at>
---
drivers/mtd/ubi/debug.c | 11 +++++++++++
drivers/mtd/ubi/debug.h | 5 +++++
drivers/mtd/ubi/ubi.h | 4 ++++
3 files changed, 20 insertions(+)
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index 63cb1d7..ea9be20 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 cba89fc..e99ef37 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 320fc38..f80a726 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -352,6 +352,7 @@ 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
@@ -359,6 +360,7 @@ 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
@@ -366,6 +368,7 @@ 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;
@@ -373,6 +376,7 @@ 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;
Thanks,
Tanya Brokhman
--
Qualcomm Israel, on behalf of Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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