diff options
Diffstat (limited to 'fs/btrfs/volumes.c')
| -rw-r--r-- | fs/btrfs/volumes.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 28addea5b0f2..bcc0acda8691 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2650,6 +2650,7 @@ int btrfs_balance(struct btrfs_balance_control *bctl, { struct btrfs_fs_info *fs_info = bctl->fs_info; u64 allowed; + int mixed = 0; int ret; if (btrfs_fs_closing(fs_info) || @@ -2659,13 +2660,16 @@ int btrfs_balance(struct btrfs_balance_control *bctl, goto out; } + allowed = btrfs_super_incompat_flags(fs_info->super_copy); + if (allowed & BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS) + mixed = 1; + /* * In case of mixed groups both data and meta should be picked, * and identical options should be given for both of them. */ - allowed = btrfs_super_incompat_flags(fs_info->super_copy); - if ((allowed & BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS) && - (bctl->flags & (BTRFS_BALANCE_DATA | BTRFS_BALANCE_METADATA))) { + allowed = BTRFS_BALANCE_DATA | BTRFS_BALANCE_METADATA; + if (mixed && (bctl->flags & allowed)) { if (!(bctl->flags & BTRFS_BALANCE_DATA) || !(bctl->flags & BTRFS_BALANCE_METADATA) || memcmp(&bctl->data, &bctl->meta, sizeof(bctl->data))) { @@ -2713,7 +2717,8 @@ int btrfs_balance(struct btrfs_balance_control *bctl, goto out; } - if ((bctl->data.flags & BTRFS_BALANCE_ARGS_CONVERT) && + /* allow dup'ed data chunks only in mixed mode */ + if (!mixed && (bctl->data.flags & BTRFS_BALANCE_ARGS_CONVERT) && (bctl->data.target & BTRFS_BLOCK_GROUP_DUP)) { printk(KERN_ERR "btrfs: dup for data is not allowed\n"); ret = -EINVAL; |