diff options
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 93beb865c20..0072da75221 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1919,6 +1919,17 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent) printk(KERN_WARNING "EXT4-fs warning: feature flags set on rev 0 fs, " "running e2fsck is recommended\n"); + + /* + * Since ext4 is still considered development code, we require + * that the TEST_FILESYS flag in s->flags be set. + */ + if (!(le32_to_cpu(es->s_flags) & EXT2_FLAGS_TEST_FILESYS)) { + printk(KERN_WARNING "EXT4-fs: %s: not marked " + "OK to use with test code.\n", sb->s_id); + goto failed_mount; + } + /* * Check feature flags regardless of the revision level, since we * previously didn't change the revision level when setting the flags, |