linux-kernel - Re: [PATCH v6 1/2] loop: Report EOPNOTSUPP properly

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Message-ID: <20191112083208.GA1848@infradead.org>
Date:   Tue, 12 Nov 2019 00:32:08 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Evan Green <evgreen@...omium.org>
Cc:     Jens Axboe <axboe@...nel.dk>,
        Martin K Petersen <martin.petersen@...cle.com>,
        Gwendal Grignou <gwendal@...omium.org>,
        Ming Lei <ming.lei@...hat.com>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        Alexis Savery <asavery@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Bart Van Assche <bvanassche@....org>,
        Chaitanya Kulkarni <chaitanya.kulkarni@....com>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 1/2] loop: Report EOPNOTSUPP properly

On Mon, Nov 11, 2019 at 10:50:29AM -0800, Evan Green wrote:
> -		if (cmd->ret < 0)
> +		if (cmd->ret == -EOPNOTSUPP)
> +			ret = BLK_STS_NOTSUPP;
> +		else if (cmd->ret < 0)
>  			ret = BLK_STS_IOERR;

This really should use errno_to_blk_status.  Same for the other hunk.