linux-kernel - Re: [PATCH v2 1/2] loop: Report EOPNOTSUPP properly

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Message-ID: <yq1h8d7qew5.fsf@oracle.com>
Date:   Wed, 13 Feb 2019 21:31:54 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Evan Green <evgreen@...omium.org>
Cc:     Jens Axboe <axboe@...nel.dk>, Bart Van Assche <bvanassche@....org>,
        Gwendal Grignou <gwendal@...omium.org>,
        Martin K Petersen <martin.petersen@...cle.com>,
        Alexis Savery <asavery@...omium.org>,
        Ming Lei <ming.lei@...hat.com>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] loop: Report EOPNOTSUPP properly


Evan,

> Properly plumb out EOPNOTSUPP from loop driver operations, which may
> get returned when for instance a discard operation is attempted but
> not supported by the underlying block device. Before this change,
> everything was reported in the log as an I/O error, which is scary and
> not helpful in debugging.

Reviewed-by: Martin K. Petersen <martin.petersen@...cle.com>

-- 
Martin K. Petersen	Oracle Linux Engineering