linux-kernel - Re: [PATCH v4 01/10] loop: Factor out loop size validation

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Date:   Fri, 1 May 2020 13:33:11 +0200
From:   Martijn Coenen <maco@...roid.com>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>,
        Narayan Kamath <narayan@...gle.com>,
        Zimuzo Ezeozue <zezeozue@...gle.com>, kernel-team@...roid.com,
        Martijn Coenen <maco@...gle.com>,
        Bart Van Assche <bvanassche@....org>,
        Chaitanya Kulkarni <Chaitanya.Kulkarni@....com>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        linux-block <linux-block@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 01/10] loop: Factor out loop size validation

Hi Ming,

On Wed, Apr 29, 2020 at 4:12 PM Ming Lei <ming.lei@...hat.com> wrote:
> Now sector_t has been switched to u64 unconditionally, do we still need such
> validation?

I think you're right; I hadn't seen that change, but truncating
because of sector_t shouldn't be an issue anymore. I wondered if we
could actually have a smaller loff_t, but looks like that is 'long
long', which should always be 8 bytes as well. I might send this as a
separate patch, I don't want to drag this series on for too long.

Thanks,
Martijn

>
>
> Thanks,
> Ming
>
>