UBI: Add initial support for fastmap self checks (5fa7fa5d) · Commits · 戴 / test

drivers/mtd/ubi/debug.c

+11 −0

Original line number	Diff line number	Diff line
		@@ -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);

+5 −0

Original line number	Diff line number	Diff line
		@@ -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__ */

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;