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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-04-02 18:02:33 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2010-05-10 11:32:30 +0900
commit277a6a34175dcb0ee98dceee619e0e3190347a25 (patch)
treebda68b681972c608b78de87f5e856a649f2a04e7
parent73bb48869b14fd5094b9ec173a2bf86bc0e464d4 (diff)
downloadblackbird-op-linux-277a6a34175dcb0ee98dceee619e0e3190347a25.tar.gz
blackbird-op-linux-277a6a34175dcb0ee98dceee619e0e3190347a25.zip
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>
-rw-r--r--Documentation/filesystems/nilfs2.txt4
-rw-r--r--fs/nilfs2/super.c6
2 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/filesystems/nilfs2.txt b/Documentation/filesystems/nilfs2.txt
index cf6d0d85ca82..d3e7673995eb 100644
--- a/Documentation/filesystems/nilfs2.txt
+++ b/Documentation/filesystems/nilfs2.txt
@@ -50,8 +50,8 @@ NILFS2 supports the following mount options:
(*) == default
nobarrier Disables barriers.
-errors=continue(*) Keep going on a filesystem error.
-errors=remount-ro Remount the filesystem read-only on an error.
+errors=continue Keep going on a filesystem error.
+errors=remount-ro(*) Remount the filesystem read-only on an error.
errors=panic Panic and halt the machine if an error occurs.
cp=n Specify the checkpoint-number of the snapshot to be
mounted. Checkpoints and snapshots are listed by lscp
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 48145f505a6a..0b1758bf0726 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)
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