linux-kernel - [PATCH 2/4] f2fs: no need to call ktime_get_real

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Date:   Wed,  4 Jan 2023 19:21:56 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     jaegeuk@...nel.org, chao@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Yangtao Li <frank.li@...o.com>
Subject: [PATCH 2/4] f2fs: no need to call ktime_get_real_seconds() if iostat is not enabled

When the iostat is not enabled, it is meaningless to call
ktime_get_real_seconds() to assign values to variables.

Let's put the call to the ktime_get_real_seconds() after iostat is enabled.

Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 fs/f2fs/iostat.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/f2fs/iostat.c b/fs/f2fs/iostat.c
index 8460989e9bab..e7d03c446994 100644
--- a/fs/f2fs/iostat.c
+++ b/fs/f2fs/iostat.c
@@ -29,12 +29,11 @@ int __maybe_unused iostat_info_seq_show(struct seq_file *seq, void *offset)
 {
 	struct super_block *sb = seq->private;
 	struct f2fs_sb_info *sbi = F2FS_SB(sb);
-	time64_t now = ktime_get_real_seconds();
 
 	if (!sbi->iostat_enable)
 		return 0;
 
-	seq_printf(seq, "time:		%-16llu\n", now);
+	seq_printf(seq, "time:		%-16llu\n", ktime_get_real_seconds());
 	seq_printf(seq, "\t\t\t%-16s %-16s %-16s\n",
 				"io_bytes", "count", "avg_bytes");
 
-- 
2.25.1