Re: [PATCH 1/3] Btrfs: fix the qgroup reserved space is released prematurely

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Feb 20, 2013 at 05:13:32PM +0800, Miao Xie wrote:
> In start_transactio(), we will try to join the transaction again after
> the current transaction is committed, so we should not release the
> reserved space of the qgroup. Fix it.

Why do we release the reserved space of the qgroup?

join
 |
 v
blocked && commit && goto again
 |
 v
fail somehow
 |
 v
release qgroup reserved space

The release part seems to be all right, am I missing something?

thanks,
liubo

> 
> Cc: Arne Jansen <sensille@xxxxxxx>
> Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx>
> ---
>  fs/btrfs/transaction.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
> index fc03aa6..bc2f2d1 100644
> --- a/fs/btrfs/transaction.c
> +++ b/fs/btrfs/transaction.c
> @@ -383,7 +383,7 @@ again:
>  	h->block_rsv = NULL;
>  	h->orig_rsv = NULL;
>  	h->aborted = 0;
> -	h->qgroup_reserved = qgroup_reserved;
> +	h->qgroup_reserved = 0;
>  	h->delayed_ref_elem.seq = 0;
>  	h->type = type;
>  	INIT_LIST_HEAD(&h->qgroup_ref_list);
> @@ -401,6 +401,7 @@ again:
>  		h->block_rsv = &root->fs_info->trans_block_rsv;
>  		h->bytes_reserved = num_bytes;
>  	}
> +	h->qgroup_reserved = qgroup_reserved;
>  
>  got_it:
>  	btrfs_record_root_in_trans(h, root);
> -- 
> 1.6.5.2
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Filesystem Development]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux