27 	struct gendisk *disk = bio->bi_bdev->bd_disk;  in __blk_error_inject()  local
31 	list_for_each_entry_rcu(inj, &disk->error_injection_list, entry) {  in __blk_error_inject()
49 				disk->part0, blk_status_to_str(inj->status),  in __blk_error_inject()
61 static int error_inject_add(struct gendisk *disk, enum req_op op,  in error_inject_add()  argument
91 			disk->part0, blk_status_to_str(status),  in error_inject_add()
100 	mutex_lock(&disk->error_injection_lock);  in error_inject_add()
101 	if (!disk_live(disk)) {  in error_inject_add()
102 		mutex_unlock(&disk->error_injection_lock);  in error_inject_add()
106 	if (list_empty(&disk->error_injection_list))  in error_inject_add()
108 	list_add_rcu(&inj->entry, &disk->error_injection_list);  in error_inject_add()
109 	set_bit(GD_ERROR_INJECT, &disk->state);  in error_inject_add()
110 	mutex_unlock(&disk->error_injection_lock);  in error_inject_add()
118 static void error_inject_removeall(struct gendisk *disk)  in error_inject_removeall()  argument
122 	mutex_lock(&disk->error_injection_lock);  in error_inject_removeall()
123 	if (test_and_clear_bit(GD_ERROR_INJECT, &disk->state))  in error_inject_removeall()
125 	while ((inj = list_first_entry_or_null(&disk->error_injection_list,  in error_inject_removeall()
130 	mutex_unlock(&disk->error_injection_lock);  in error_inject_removeall()
185 static ssize_t blk_error_injection_parse_options(struct gendisk *disk,  in blk_error_injection_parse_options()  argument
242 		return error_inject_add(disk, op, start, nr_sectors, status,  in blk_error_injection_parse_options()
247 		error_inject_removeall(disk);  in blk_error_injection_parse_options()
257 	struct gendisk *disk = file_inode(file)->i_private;  in blk_error_injection_write()  local
264 	error = blk_error_injection_parse_options(disk, options);  in blk_error_injection_write()
274 	struct gendisk *disk = s->private;  in blk_error_injection_show()  local
278 	list_for_each_entry_rcu(inj, &disk->error_injection_list, entry) {  in blk_error_injection_show()
307 void blk_error_injection_init(struct gendisk *disk)  in blk_error_injection_init()  argument
309 	debugfs_create_file("error_injection", 0600, disk->queue->debugfs_dir,  in blk_error_injection_init()
310 			disk, &blk_error_injection_fops);  in blk_error_injection_init()
313 void blk_error_injection_exit(struct gendisk *disk)  in blk_error_injection_exit()  argument
315 	error_inject_removeall(disk);  in blk_error_injection_exit()