On Wed, February 13, 2013 at 12:20 (+0100), Arne Jansen wrote:
> When replaying a log tree with qgroups enabled, tree_mod_log_rewind does a
> sanity-check of the number of items against the maximum possible number.
> It calculates that number with the nodesize of fs_root. Unfortunately
> fs_root is not yet set at this stage. So instead use the nodesize from
> tree_root, which is already initialized.
> 
> Signed-off-by: Arne Jansen <sensi...@gmx.net>
> ---
>  fs/btrfs/ctree.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
> index eea5da7..6eff0fa 100644
> --- a/fs/btrfs/ctree.c
> +++ b/fs/btrfs/ctree.c
> @@ -1222,7 +1222,7 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, 
> struct extent_buffer *eb,
>  
>       __tree_mod_log_rewind(eb_rewin, time_seq, tm);
>       WARN_ON(btrfs_header_nritems(eb_rewin) >
> -             BTRFS_NODEPTRS_PER_BLOCK(fs_info->fs_root));
> +             BTRFS_NODEPTRS_PER_BLOCK(fs_info->tree_root));
>  
>       return eb_rewin;
>  }
> 

Chris, please send this for the next patch round for 3.8, optionally with cc for
stable (the check was added in 3.6).

Thanks,
-Jan
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