nilfs2: change default of 'errors' mount option to 'remount-ro' mode

Like ext3, nilfs has 'errors' mount option to allow specifying desired
behavior on severe errors.

Currently, the default action is 'errors=continue' and has potential
to advance filesystem corruption for severe errors.

This will change the action to 'errors=remount-ro' to avoid the issue.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 48145f505a6..0b1758bf072 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -470,10 +470,10 @@ static int nilfs_show_options(struct seq_file *seq, struct vfsmount *vfs)
         if (nilfs_test_opt(sbi, SNAPSHOT))
                 seq_printf(seq, ",cp=%llu",
                            (unsigned long long int)sbi->s_snapshot_cno);
-        if (nilfs_test_opt(sbi, ERRORS_RO))
-                seq_printf(seq, ",errors=remount-ro");
         if (nilfs_test_opt(sbi, ERRORS_PANIC))
                 seq_printf(seq, ",errors=panic");
+        if (nilfs_test_opt(sbi, ERRORS_CONT))
+                seq_printf(seq, ",errors=continue");
         if (nilfs_test_opt(sbi, STRICT_ORDER))
                 seq_printf(seq, ",order=strict");
         if (nilfs_test_opt(sbi, NORECOVERY))
@@ -631,7 +631,7 @@ nilfs_set_default_options(struct nilfs_sb_info *sbi,
                           struct nilfs_super_block *sbp)
 {
         sbi->s_mount_opt =
-                NILFS_MOUNT_ERRORS_CONT | NILFS_MOUNT_BARRIER;
+                NILFS_MOUNT_ERRORS_RO | NILFS_MOUNT_BARRIER;
 }
 
 static int nilfs_setup_super(struct nilfs_sb_info *sbi)