linux-kernel - Re: Potentially broken error path in bio_map_user

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Message-ID: <20220103163532.GB3151@lst.de>
Date:   Mon, 3 Jan 2022 17:35:32 +0100
From:   Christoph Hellwig <hch@....de>
To:     Lukas Bulwahn <lukas.bulwahn@...il.com>
Cc:     Christoph Hellwig <hch@....de>, Jens Axboe <axboe@...nel.dk>,
        linux-block@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kernel-janitors <kernel-janitors@...r.kernel.org>
Subject: Re: Potentially broken error path in bio_map_user_iov()

Hi Lukas,

we can just remove the queue_dma_alignment check entirely, the caller
already ensures bio_copy_user_iov is called instead of this case.