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authorJaegeuk Kim <jaegeuk@kernel.org>2020-02-25 19:08:16 -0800
committerJaegeuk Kim <jaegeuk@kernel.org>2020-03-19 11:41:25 -0700
commita7e679b53393c76d4427f4085ec9d114f06cac5a (patch)
tree38f31a3050c1fca2e06034f7446ff05f1afcd40f /fs/f2fs
parentf2fs: Use scnprintf() for avoiding potential buffer overflow (diff)
downloadwireguard-linux-a7e679b53393c76d4427f4085ec9d114f06cac5a.tar.xz
wireguard-linux-a7e679b53393c76d4427f4085ec9d114f06cac5a.zip
f2fs: show mounted time
Let's show mounted time. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/debug.c3
-rw-r--r--fs/f2fs/segment.c2
-rw-r--r--fs/f2fs/segment.h2
-rw-r--r--fs/f2fs/sysfs.c8
4 files changed, 13 insertions, 2 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 6b89eae5e4ca..0dbcb0f9c019 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -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);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index cf0eb002cfd4..c00cf5c27e95 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -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;
}
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 459dc3901a57..7a83bd530812 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -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;
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 5cc58a1fa645..5f4fec83a6c6 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -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),