linux-kernel - Re: [PATCH 1/2] quota: Add mountpath based quota support

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Date:   Thu, 11 Feb 2021 15:38:13 +0000
From:   Christoph Hellwig <hch@...radead.org>
To:     Sascha Hauer <s.hauer@...gutronix.de>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Christoph Hellwig <hch@...radead.org>, kernel@...gutronix.de,
        Jan Kara <jack@...e.com>, Richard Weinberger <richard@....at>
Subject: Re: [PATCH 1/2] quota: Add mountpath based quota support

> +	if (!mountpoint)
> +		return -ENODEV;
> +
> +	ret = user_path_at(AT_FDCWD, mountpoint,
> +			     LOOKUP_FOLLOW | LOOKUP_AUTOMOUNT, &mountpath);

user_path_at handles an empty path, although you'll get EFAULT instead.
Do we care about the -ENODEV here?

Otherwise this looks good:

Reviewed-by: Christoph Hellwig <hch@....de>