Re: [PATCH v2] xfs_quota: don't stop the directory tree walk when DEPTH is hit

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On 6/22/18 1:44 AM, Kazuya Mio wrote:
> To set/check/clear a project quota, xfs_quota performs a pre-order tree
> traversal by using nftw(3).  The documentation states that the -d option
> can be used to skip subtrees below a certain level in the directory
> hierarchy.  Unfortunately, {check,setup,clear}_project returns -1 when
> DEPTH is hit, which stops the directory tree walk immediately.  We only
> wanted to skip the subtree, so return 0 instead.
> 
> Signed-off-by: Kazuya Mio <k-mio@xxxxxxxxxxxxx>
> Reviewed-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>

Getting this merged now, but an xfstests would be really, really good
to validate this behavior.  (hint, hint).

Thanks,
-Eric

> ---
>  quota/project.c |    6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> diff --git a/quota/project.c b/quota/project.c
> index e4e7a01..20bc01b 100644
> --- a/quota/project.c
> +++ b/quota/project.c
> @@ -101,7 +101,7 @@ check_project(
>  	int			fd;
>  
>  	if (recurse_depth >= 0 && data->level > recurse_depth)
> -		return -1;
> +		return 0;
>  
>  	if (flag == FTW_NS ){
>  		exitcode = 1;
> @@ -146,7 +146,7 @@ clear_project(
>  	int			fd;
>  
>  	if (recurse_depth >= 0 && data->level > recurse_depth)
> -		return -1;
> +		return 0;
>  
>  	if (flag == FTW_NS ){
>  		exitcode = 1;
> @@ -193,7 +193,7 @@ setup_project(
>  	int			fd;
>  
>  	if (recurse_depth >= 0 && data->level > recurse_depth)
> -		return -1;
> +		return 0;
>  
>  	if (flag == FTW_NS ){
>  		exitcode = 1;
> 
> 
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