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f2fs: show mounted time

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Let's show mounted time.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2020-02-25 19:08:16 -08:00 committed by Jaegeuk Kim
parent b484631337
commit eb8bca0262
5 changed files with 18 additions and 2 deletions
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5
Documentation/ABI/testing/sysfs-fs-f2fs
View file

@ -318,3 +318,8 @@ Date: September 2019
Contact: "Hridya Valsaraju" <hridya@google.com>
Description: Average number of valid blocks.
Available when CONFIG_F2FS_STAT_FS=y.
What: /sys/fs/f2fs/<disk>/mounted_time_sec
Date: February 2020
Contact: "Jaegeuk Kim" <jaegeuk@kernel.org>
Description: Show the mounted time in secs of this partition.

3
fs/f2fs/debug.c
View file

@ -301,6 +301,9 @@ static int stat_show(struct seq_file *s, void *v)
si->ssa_area_segs, si->main_area_segs);
seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
si->overp_segs, si->rsvd_segs);
seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
ktime_get_boottime_seconds(),
SIT_I(si->sbi)->mounted_time);
if (test_opt(si->sbi, DISCARD))
seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
si->utilization, si->valid_count, si->discard_blks);

2
fs/f2fs/segment.c
View file

@ -4070,7 +4070,7 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
sit_i->dirty_sentries = 0;
sit_i->sents_per_block = SIT_ENTRY_PER_BLOCK;
sit_i->elapsed_time = le64_to_cpu(sbi->ckpt->elapsed_time);
sit_i->mounted_time = ktime_get_real_seconds();
sit_i->mounted_time = ktime_get_boottime_seconds();
init_rwsem(&sit_i->sentry_lock);
return 0;
}

2
fs/f2fs/segment.h
View file

@ -756,7 +756,7 @@ static inline unsigned long long get_mtime(struct f2fs_sb_info *sbi,
bool base_time)
{
struct sit_info *sit_i = SIT_I(sbi);
time64_t diff, now = ktime_get_real_seconds();
time64_t diff, now = ktime_get_boottime_seconds();
if (now >= sit_i->mounted_time)
return sit_i->elapsed_time + now - sit_i->mounted_time;

8
fs/f2fs/sysfs.c
View file

@ -185,6 +185,12 @@ static ssize_t encoding_show(struct f2fs_attr *a,
return sprintf(buf, "(none)");
}
static ssize_t mounted_time_sec_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time);
}
#ifdef CONFIG_F2FS_STAT_FS
static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
@ -544,6 +550,7 @@ F2FS_GENERAL_RO_ATTR(features);
F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
F2FS_GENERAL_RO_ATTR(unusable);
F2FS_GENERAL_RO_ATTR(encoding);
F2FS_GENERAL_RO_ATTR(mounted_time_sec);
#ifdef CONFIG_F2FS_STAT_FS
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
@ -621,6 +628,7 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(reserved_blocks),
ATTR_LIST(current_reserved_blocks),
ATTR_LIST(encoding),
ATTR_LIST(mounted_time_sec),
#ifdef CONFIG_F2FS_STAT_FS
ATTR_LIST(cp_foreground_calls),
ATTR_LIST(cp_background_calls),