[PATCH] xfs: group quota is still enforced if mount v5 xfs with gqnoenforce and pqnoenforce

[Eric Sandeen]

This looks fine, but I think Eryu already sent this patch on 3/31:

[PATCH] xfs: add missing break in xfs_parseargs()

-Eric

On 4/13/16 1:22 PM, Zorro Lang wrote:
> This's a regression bug caused by:
> 
>   2e74af0 xfs: convert mount option parsing to tokens
> 
> xfstests xfs/299 can reproduce this bug, it will fail when do
> gpnoenforce test, the error output as below(diff with 299.out):
> 
>  *** push past the soft block limit
>   [ROOT] 0 0 0 00 [--------] 3 0 0 00 [--------] 0 0 0 00 [--------]
>   -[NAME] 140 100 500 00 [--------] 4 4 10 00 [--------] 0 0 0 00 [--------]
>   +[NAME] 140 100 500 00 [7 days] 4 4 10 00 [--------] 0 0 0 00 [--------]
> 
>  *** push past the hard inode limit (expect EDQUOT)
>   [ROOT] 0 0 0 00 [--------] 3 0 0 00 [--------] 0 0 0 00 [--------]
>   -[NAME] 140 100 500 00 [--------] 16 4 10 00 [--none--] 0 0 0 00 [--------]
>   +[NAME] 140 100 500 00 [7 days] 10 4 10 00 [7 days] 0 0 0 00 [--------]
> 
>  *** push past the hard block limit (expect EDQUOT)
>   [ROOT] 0 0 0 00 [--------] 3 0 0 00 [--------] 0 0 0 00 [--------]
>   -[NAME] 540 100 500 00 [--none--] 16 4 10 00 [--none--] 0 0 0 00 [--------]
>   +[NAME] 500 100 500 00 [7 days] 10 4 10 00 [7 days] 0 0 0 00 [--------]
> 
> It shows that group quota is still enforced. But this bug only can
> be reproduced when mount v5 xfs with gqnoenforce and pqnoenforce
> options. The reason as I found is a missed "break" in xfs_parseargs()
> function.
> 
> After deal with "pqnoenforce", it should break. But the code keep
> running into "gquota/grpquota" lines, and make gquota enforced.
> 
> Signed-off-by: Zorro Lang <zlang at redhat.com>
> ---
> 
> Hi,
> 
> This's a tiny bug(only one line patch). But it's belong to
> regression bug and take me a few hours to find the problem.
> So I hope it can be fixed:)
> 
> Thanks,
> Zorro
> 
>  fs/xfs/xfs_super.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index 187e14b..f3c0ffc 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -350,6 +350,7 @@ xfs_parseargs(
>  		case Opt_pqnoenforce:
>  			mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
>  			mp->m_qflags &= ~XFS_PQUOTA_ENFD;
> +			break;
>  		case Opt_gquota:
>  		case Opt_grpquota:
>  			mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
>