diff options
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 7291e9d67e92..eb0ae7e396ef 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -2117,6 +2117,15 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) ret = -EINVAL; goto restore; } + if (btrfs_super_compat_ro_flags(fs_info->super_copy) & + ~BTRFS_FEATURE_COMPAT_RO_SUPP) { + btrfs_err(fs_info, + "can not remount read-write due to unsupported optional flags 0x%llx", + btrfs_super_compat_ro_flags(fs_info->super_copy) & + ~BTRFS_FEATURE_COMPAT_RO_SUPP); + ret = -EINVAL; + goto restore; + } if (fs_info->fs_devices->rw_devices == 0) { ret = -EACCES; goto restore; |