diff options
Diffstat (limited to 'fs/ext4/sysfs.c')
| -rw-r--r-- | fs/ext4/sysfs.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c index 0018e09b867e..d2ecc1026c0c 100644 --- a/fs/ext4/sysfs.c +++ b/fs/ext4/sysfs.c @@ -40,6 +40,7 @@ typedef enum { attr_pointer_string, attr_pointer_atomic, attr_journal_task, + attr_err_report_sec, } attr_id_t; typedef enum { @@ -130,6 +131,36 @@ static ssize_t trigger_test_error(struct ext4_sb_info *sbi, return count; } +static ssize_t err_report_sec_store(struct ext4_sb_info *sbi, + const char *buf, size_t count) +{ + unsigned long t; + int ret; + + ret = kstrtoul(skip_spaces(buf), 0, &t); + if (ret) + return ret; + + /*the maximum time interval must not exceed one year.*/ + if (t > (365*24*60*60)) + return -EINVAL; + + if (sbi->s_err_report_sec == t) /*nothing to do*/ + goto out; + else if (!sbi->s_err_report_sec && t) { + timer_setup(&sbi->s_err_report, print_daily_error_info, 0); + } else if (sbi->s_err_report_sec && !t) { + timer_delete_sync(&sbi->s_err_report); + goto out; + } + + sbi->s_err_report_sec = t; + mod_timer(&sbi->s_err_report, jiffies + secs_to_jiffies(sbi->s_err_report_sec)); + +out: + return count; +} + static ssize_t journal_task_show(struct ext4_sb_info *sbi, char *buf) { if (!sbi->s_journal) @@ -217,6 +248,7 @@ EXT4_ATTR_OFFSET(mb_group_prealloc, 0644, clusters_in_group, ext4_sb_info, s_mb_group_prealloc); EXT4_ATTR_OFFSET(mb_best_avail_max_trim_order, 0644, mb_order, ext4_sb_info, s_mb_best_avail_max_trim_order); +EXT4_ATTR_OFFSET(err_report_sec, 0644, err_report_sec, ext4_sb_info, s_err_report_sec); EXT4_RW_ATTR_SBI_UI(inode_goal, s_inode_goal); EXT4_RW_ATTR_SBI_UI(mb_stats, s_mb_stats); EXT4_RW_ATTR_SBI_UI(mb_max_to_scan, s_mb_max_to_scan); @@ -309,6 +341,7 @@ static struct attribute *ext4_attrs[] = { ATTR_LIST(last_trim_minblks), ATTR_LIST(sb_update_sec), ATTR_LIST(sb_update_kb), + ATTR_LIST(err_report_sec), NULL, }; ATTRIBUTE_GROUPS(ext4); @@ -402,6 +435,7 @@ static ssize_t ext4_generic_attr_show(struct ext4_attr *a, return sysfs_emit(buf, "%u\n", le32_to_cpup(ptr)); return sysfs_emit(buf, "%u\n", *((unsigned int *) ptr)); case attr_pointer_ul: + case attr_err_report_sec: return sysfs_emit(buf, "%lu\n", *((unsigned long *) ptr)); case attr_pointer_u8: return sysfs_emit(buf, "%u\n", *((unsigned char *) ptr)); @@ -525,6 +559,8 @@ static ssize_t ext4_attr_store(struct kobject *kobj, return inode_readahead_blks_store(sbi, buf, len); case attr_trigger_test_error: return trigger_test_error(sbi, buf, len); + case attr_err_report_sec: + return err_report_sec_store(sbi, buf, len); default: return ext4_generic_attr_store(a, sbi, buf, len); } |