linux-ext4 - Re: [PATCH 8/8] xfs: support project in xfs

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Date:   Fri, 1 Mar 2019 07:39:31 -0800
From:   "Darrick J. Wong" <darrick.wong@...cle.com>
To:     Wang Shilong <wangshilong1991@...il.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-xfs@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        lixi@....com, adilger@...ger.ca, Wang Shilong <wshilong@....com>
Subject: Re: [PATCH 8/8] xfs: support project in xfs_getattr()

On Fri, Mar 01, 2019 at 11:05:41PM +0900, Wang Shilong wrote:
> From: Wang Shilong <wshilong@....com>
> 
> From: Wang Shilong <wshilong@....com>
> 
> Signed-off-by: Wang Shilong <wshilong@....com>
> ---
>  fs/xfs/xfs_iops.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
> index c10466fe6ed4..a2f8c0f048cf 100644
> --- a/fs/xfs/xfs_iops.c
> +++ b/fs/xfs/xfs_iops.c
> @@ -501,6 +501,7 @@ xfs_vn_getattr(
>  	if (XFS_FORCED_SHUTDOWN(mp))
>  		return -EIO;
>  
> +	stat->projid = xfs_projid_to_kprojid(xfs_get_projid(ip));

I think we're supposed to set STATX_PROJID in the result mask if the
caller asks for it, right?

if (request_mask & STATX_PROJID) {
	stat->projid = xfs_projid_to_kprojid(xfs_get_projid(ip));
	stat->result_mask |= STATX_PROJID;
}

>  	stat->size = XFS_ISIZE(ip);
>  	stat->dev = inode->i_sb->s_dev;
>  	stat->mode = inode->i_mode;
> @@ -528,6 +529,8 @@ xfs_vn_getattr(
>  		stat->attributes |= STATX_ATTR_APPEND;
>  	if (ip->i_d.di_flags & XFS_DIFLAG_NODUMP)
>  		stat->attributes |= STATX_ATTR_NODUMP;
> +	if (ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT)
> +		stat->attributes |= STATX_ATTR_PROJINHERIT;

I think we also have to set STATX_ATTR_PROJINHERIT in the
attributes_mask, but ... heh, XFS doesn't do that at all. :(

--D

>  	switch (inode->i_mode & S_IFMT) {
>  	case S_IFBLK:
> -- 
> 2.19.1
>