66 static ssize_t session_write_kbytes_show(struct ext4_sb_info *sbi, char *buf)  in session_write_kbytes_show()  argument
68 	struct super_block *sb = sbi->s_buddy_cache->i_sb;  in session_write_kbytes_show()
72 			 sbi->s_sectors_written_start) >> 1);  in session_write_kbytes_show()
75 static ssize_t lifetime_write_kbytes_show(struct ext4_sb_info *sbi, char *buf)  in lifetime_write_kbytes_show()  argument
77 	struct super_block *sb = sbi->s_buddy_cache->i_sb;  in lifetime_write_kbytes_show()
80 			(unsigned long long)(sbi->s_kbytes_written +  in lifetime_write_kbytes_show()
85 static ssize_t inode_readahead_blks_store(struct ext4_sb_info *sbi,  in inode_readahead_blks_store()  argument
98 	sbi->s_inode_readahead_blks = t;  in inode_readahead_blks_store()
102 static ssize_t reserved_clusters_store(struct ext4_sb_info *sbi,  in reserved_clusters_store()  argument
106 	ext4_fsblk_t clusters = (ext4_blocks_count(sbi->s_es) >>  in reserved_clusters_store()
107 				 sbi->s_cluster_bits);  in reserved_clusters_store()
114 	atomic64_set(&sbi->s_resv_clusters, val);  in reserved_clusters_store()
118 static ssize_t trigger_test_error(struct ext4_sb_info *sbi,  in trigger_test_error()  argument
130 		ext4_error(sbi->s_sb, "%.*s", len, buf);  in trigger_test_error()
134 static ssize_t err_report_sec_store(struct ext4_sb_info *sbi,  in err_report_sec_store()  argument
148 	if (sbi->s_err_report_sec == t)		/*nothing to do*/  in err_report_sec_store()
150 	else if (!sbi->s_err_report_sec && t) {  in err_report_sec_store()
151 		timer_setup(&sbi->s_err_report, print_daily_error_info, 0);  in err_report_sec_store()
152 	} else if (sbi->s_err_report_sec && !t) {  in err_report_sec_store()
153 		timer_delete_sync(&sbi->s_err_report);  in err_report_sec_store()
157 	sbi->s_err_report_sec = t;  in err_report_sec_store()
158 	mod_timer(&sbi->s_err_report, jiffies + secs_to_jiffies(sbi->s_err_report_sec));  in err_report_sec_store()
164 static ssize_t journal_task_show(struct ext4_sb_info *sbi, char *buf)  in journal_task_show()  argument
166 	if (!sbi->s_journal)  in journal_task_show()
169 			task_pid_vnr(sbi->s_journal->j_task));  in journal_task_show()
398 static void *calc_ptr(struct ext4_attr *a, struct ext4_sb_info *sbi)  in calc_ptr()  argument
404 		return (void *) (((char *) sbi) + a->u.offset);  in calc_ptr()
406 		return (void *) (((char *) sbi->s_es) + a->u.offset);  in calc_ptr()
421 				      struct ext4_sb_info *sbi, char *buf)  in ext4_generic_attr_show()  argument
423 	void *ptr = calc_ptr(a, sbi);  in ext4_generic_attr_show()
457 	struct ext4_sb_info *sbi = container_of(kobj, struct ext4_sb_info,  in ext4_attr_show()  local
464 				(s64) EXT4_C2B(sbi,  in ext4_attr_show()
465 		       percpu_counter_sum(&sbi->s_dirtyclusters_counter)));  in ext4_attr_show()
467 		return session_write_kbytes_show(sbi, buf);  in ext4_attr_show()
469 		return lifetime_write_kbytes_show(sbi, buf);  in ext4_attr_show()
473 				atomic64_read(&sbi->s_resv_clusters));  in ext4_attr_show()
477 			percpu_counter_sum(&sbi->s_sra_exceeded_retry_limit));  in ext4_attr_show()
481 		return print_tstamp(buf, sbi->s_es, s_first_error_time);  in ext4_attr_show()
483 		return print_tstamp(buf, sbi->s_es, s_last_error_time);  in ext4_attr_show()
485 		return journal_task_show(sbi, buf);  in ext4_attr_show()
487 		return ext4_generic_attr_show(a, sbi, buf);  in ext4_attr_show()
492 				       struct ext4_sb_info *sbi,  in ext4_generic_attr_store()  argument
498 	void *ptr = calc_ptr(a, sbi);  in ext4_generic_attr_store()
533 		if (t > sbi->s_clusters_per_group)  in ext4_generic_attr_store()
551 	struct ext4_sb_info *sbi = container_of(kobj, struct ext4_sb_info,  in ext4_attr_store()  local
557 		return reserved_clusters_store(sbi, buf, len);  in ext4_attr_store()
559 		return inode_readahead_blks_store(sbi, buf, len);  in ext4_attr_store()
561 		return trigger_test_error(sbi, buf, len);  in ext4_attr_store()
563 		return err_report_sec_store(sbi, buf, len);  in ext4_attr_store()
565 		return ext4_generic_attr_store(a, sbi, buf, len);  in ext4_attr_store()
571 	struct ext4_sb_info *sbi = container_of(kobj, struct ext4_sb_info,  in ext4_sb_release()  local
573 	complete(&sbi->s_kobj_unregister);  in ext4_sb_release()
598 void ext4_notify_error_sysfs(struct ext4_sb_info *sbi)  in ext4_notify_error_sysfs()  argument
600 	sysfs_notify(&sbi->s_kobj, NULL, "errors_count");  in ext4_notify_error_sysfs()
609 	struct ext4_sb_info *sbi = EXT4_SB(sb);  in ext4_register_sysfs()  local
612 	init_completion(&sbi->s_kobj_unregister);  in ext4_register_sysfs()
613 	err = kobject_init_and_add(&sbi->s_kobj, &ext4_sb_ktype, ext4_root,  in ext4_register_sysfs()
616 		kobject_put(&sbi->s_kobj);  in ext4_register_sysfs()
617 		wait_for_completion(&sbi->s_kobj_unregister);  in ext4_register_sysfs()
622 		sbi->s_proc = proc_mkdir(sb->s_id, ext4_proc_root);  in ext4_register_sysfs()
623 	if (sbi->s_proc) {  in ext4_register_sysfs()
624 		proc_create_single_data("options", S_IRUGO, sbi->s_proc,  in ext4_register_sysfs()
627 				sbi->s_proc, ext4_seq_es_shrinker_info_show,  in ext4_register_sysfs()
629 		proc_create_single_data("fc_info", 0444, sbi->s_proc,  in ext4_register_sysfs()
631 		proc_create_seq_data("mb_groups", S_IRUGO, sbi->s_proc,  in ext4_register_sysfs()
633 		proc_create_single_data("mb_stats", 0444, sbi->s_proc,  in ext4_register_sysfs()
635 		proc_create_seq_data("mb_structs_summary", 0444, sbi->s_proc,  in ext4_register_sysfs()
643 	struct ext4_sb_info *sbi = EXT4_SB(sb);  in ext4_unregister_sysfs()  local
645 	if (sbi->s_proc)  in ext4_unregister_sysfs()
647 	kobject_del(&sbi->s_kobj);  in ext4_unregister_sysfs()