linux-kernel - [PATCH] f2fs: show the fault injection mount option

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Date:   Fri, 27 Jan 2017 09:35:37 +0800
From:   Kaixu Xia <xiakaixu@...wei.com>
To:     <yuchao0@...wei.com>, <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        <xiakaixu@...wei.com>
Subject: [PATCH] f2fs: show the fault injection mount option

This patch shows the fault injection mount option in
f2fs_show_options().

Signed-off-by: Kaixu Xia <xiakaixu@...wei.com>
---
 fs/f2fs/super.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 46fd30d..47880b4 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -540,6 +540,7 @@ static int parse_options(struct super_block *sb, char *options)
 				return -EINVAL;
 #ifdef CONFIG_F2FS_FAULT_INJECTION
 			f2fs_build_fault_attr(sbi, arg);
+			set_opt(sbi, FAULT_INJECTION);
 #else
 			f2fs_msg(sb, KERN_INFO,
 				"FAULT_INJECTION was not selected");
@@ -918,6 +919,10 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
 	else if (test_opt(sbi, LFS))
 		seq_puts(seq, "lfs");
 	seq_printf(seq, ",active_logs=%u", sbi->active_logs);
+#ifdef CONFIG_F2FS_FAULT_INJECTION
+	if (test_opt(sbi, FAULT_INJECTION))
+		seq_puts(seq, ",fault_injection");
+#endif
 
 	return 0;
 }
-- 
1.7.10.4