8 #include "ubi.h"
47  * @ubi: UBI device description object  in FAIL_ACTION()
52 void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len)  in FAIL_ACTION()
57 	loff_t addr = (loff_t)pnum * ubi->peb_size + offset;  in FAIL_ACTION()
62 	err = mtd_read(ubi->mtd, addr, len, &read, buf);  in FAIL_ACTION()
64 		ubi_err(ubi, "err %d while reading %d bytes from PEB %d:%d, read %zd bytes",  in FAIL_ACTION()
69 	ubi_msg(ubi, "dumping %d bytes of data from PEB %d, offset %d",  in FAIL_ACTION()
123  * @vol: UBI volume description object
240  * Root directory for UBI stuff in debugfs. Contains sub-directories which
241  * contain the stuff specific to particular UBI devices.
254 		pr_warn("UBI error: cannot create \"fault_inject\" debugfs directory, error %d\n",  in dfs_create_fault_entry()
292  * ubi_debugfs_init - create UBI debugfs directory.
294  * Create UBI debugfs directory. Returns zero in case of success and a negative
302 	dfs_rootdir = debugfs_create_dir("ubi", NULL);  in ubi_debugfs_init()
306 		pr_err("UBI error: cannot create \"ubi\" debugfs directory, error %d\n",  in ubi_debugfs_init()
319  * ubi_debugfs_exit - remove UBI debugfs directory.
327 /* Read an UBI debugfs file */
333 	struct ubi_device *ubi;  in dfs_file_read()  local
338 	ubi = ubi_get_device(ubi_num);  in dfs_file_read()
339 	if (!ubi)  in dfs_file_read()
341 	d = &ubi->dbg;  in dfs_file_read()
390 	ubi_put_device(ubi);  in dfs_file_read()
394 /* Write an UBI debugfs file */
400 	struct ubi_device *ubi;  in dfs_file_write()  local
406 	ubi = ubi_get_device(ubi_num);  in dfs_file_write()
407 	if (!ubi)  in dfs_file_write()
409 	d = &ubi->dbg;  in dfs_file_write()
462 	ubi_put_device(ubi);  in dfs_file_write()
466 /* File operations for all UBI debugfs files except
481 	struct ubi_device *ubi = s->private;  in eraseblk_count_seq_start()  local
483 	if (*pos < ubi->peb_count)  in eraseblk_count_seq_start()
494 	struct ubi_device *ubi = s->private;  in eraseblk_count_seq_next()  local
498 	if (*pos < ubi->peb_count)  in eraseblk_count_seq_next()
510 	struct ubi_device *ubi = s->private;  in eraseblk_count_seq_show()  local
520 	err = ubi_io_is_bad(ubi, *block_number);  in eraseblk_count_seq_show()
524 	spin_lock(&ubi->wl_lock);  in eraseblk_count_seq_show()
526 	wl = ubi->lookuptbl[*block_number];  in eraseblk_count_seq_show()
530 	spin_unlock(&ubi->wl_lock);  in eraseblk_count_seq_show()
568 	struct ubi_device *ubi = s->private;  in eraseblk_count_release()  local
570 	ubi_put_device(ubi);  in eraseblk_count_release()
584  * ubi_debugfs_init_dev - initialize debugfs for an UBI device.
585  * @ubi: UBI device description object
587  * This function creates all debugfs files for UBI device @ubi. Returns zero in
590 int ubi_debugfs_init_dev(struct ubi_device *ubi)  in ubi_debugfs_init_dev()  argument
592 	unsigned long ubi_num = ubi->ubi_num;  in ubi_debugfs_init_dev()
593 	struct ubi_debug_info *d = &ubi->dbg;  in ubi_debugfs_init_dev()
601 		     ubi->ubi_num);  in ubi_debugfs_init_dev()
659  * ubi_debugfs_exit_dev - free all debugfs files corresponding to device @ubi
660  * @ubi: UBI device description object
662 void ubi_debugfs_exit_dev(struct ubi_device *ubi)  in ubi_debugfs_exit_dev()  argument
665 		debugfs_remove_recursive(ubi->dbg.dfs_dir);  in ubi_debugfs_exit_dev()
670  * @ubi: UBI device description object
675 int ubi_dbg_power_cut(struct ubi_device *ubi, int caller)  in ubi_dbg_power_cut()  argument
679 	if ((ubi->dbg.emulate_power_cut & caller) == 0)  in ubi_dbg_power_cut()
682 	if (ubi->dbg.power_cut_counter == 0) {  in ubi_dbg_power_cut()
683 		ubi->dbg.power_cut_counter = ubi->dbg.power_cut_min;  in ubi_dbg_power_cut()
685 		if (ubi->dbg.power_cut_max > ubi->dbg.power_cut_min) {  in ubi_dbg_power_cut()
686 			range = ubi->dbg.power_cut_max - ubi->dbg.power_cut_min;  in ubi_dbg_power_cut()
687 			ubi->dbg.power_cut_counter += get_random_u32_below(range);  in ubi_dbg_power_cut()
692 	ubi->dbg.power_cut_counter--;  in ubi_dbg_power_cut()
693 	if (ubi->dbg.power_cut_counter)  in ubi_dbg_power_cut()