ext3: change the default behaviour on error

ext3 file system was by default ignoring errors and continuing.  This is
not a good default as continuing on error could lead to file system
corruption.  Change the default to mark the file system readonly.  Debian
and ubuntu already does this as the default in their fstab.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: <linux-ext4@vger.kernel.org>
Cc: Eric Sandeen <sandeen@redhat.com>
Cc: Jan Kara <jack@ucw.cz>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index f3675cc630e97a7c5ab42251193050872957c5c1..15e75139b7e876f4688578fb76bc68ed30b87309 100644 (file)
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -575,16 +575,16 @@ static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
            le16_to_cpu(es->s_def_resgid) != EXT3_DEF_RESGID) {
                seq_printf(seq, ",resgid=%u", sbi->s_resgid);
        }
-       if (test_opt(sb, ERRORS_CONT)) {
+       if (test_opt(sb, ERRORS_RO)) {
                int def_errors = le16_to_cpu(es->s_errors);
 
                if (def_errors == EXT3_ERRORS_PANIC ||
-                   def_errors == EXT3_ERRORS_RO) {
-                       seq_puts(seq, ",errors=continue");
+                   def_errors == EXT3_ERRORS_CONTINUE) {
+                       seq_puts(seq, ",errors=remount-ro");
                }
        }
-       if (test_opt(sb, ERRORS_RO))
-               seq_puts(seq, ",errors=remount-ro");
+       if (test_opt(sb, ERRORS_CONT))
+               seq_puts(seq, ",errors=continue");
        if (test_opt(sb, ERRORS_PANIC))
                seq_puts(seq, ",errors=panic");
        if (test_opt(sb, NO_UID32))
@@ -1583,10 +1583,10 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 
        if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_PANIC)
                set_opt(sbi->s_mount_opt, ERRORS_PANIC);
-       else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_RO)
-               set_opt(sbi->s_mount_opt, ERRORS_RO);
-       else
+       else if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_CONTINUE)
                set_opt(sbi->s_mount_opt, ERRORS_CONT);
+       else
+               set_opt(sbi->s_mount_opt, ERRORS_RO);
 
        sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
        sbi->s_resgid = le16_to_cpu(es->s_def_resgid);