f2fs: show mounted time (a7e679b5) · Commits · 戴 / test

Documentation/ABI/testing/sysfs-fs-f2fs

+5 −0

Original line number	Diff line number	Diff line
		@@ -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 −0

Original line number	Diff line number	Diff line
		@@ -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);

+1 −1

Original line number	Diff line number	Diff line
		@@ -4071,7 +4071,7 @@ 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;
		}

+1 −1

Original line number	Diff line number	Diff line
		@@ -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 −0

Original line number	Diff line number	Diff line
		@@ -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),