On Tue, Jul 05, 2016 at 10:34:49AM -0500, Eric W. Biederman wrote:
> The more I think of it the more I think that sounds like wisdom.
> Dropping this patch and replacing it by one that just does:
>
> diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
> index d8fb0fd3ff6f..9c9890fe18b7 100644
> --- a/fs/quota/dquot.c
> +++ b/fs/quota/dquot.c
> @@ -2273,6 +2273,11 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
> error = -EINVAL;
> goto out_fmt;
> }
> + /* Filesystems outside of init_user_ns not yet supported */
> + if (sb->s_user_ns != &init_user_ns) {
> + error = -EINVAL;
> + goto out_fmt;
> + }
> /* Usage always has to be set... */
> if (!(flags & DQUOT_USAGE_ENABLED)) {
> error = -EINVAL;
>
>
> seems a lot more appropriate at this point. That is enough to give a
> great big hint there is something that needs to be done but won't
> embrittle the code with untested corner cases.
You'll need to propagate that to all filesystems that have their own
quota implemenation, too.
Cheers,
Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx
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