linux-kernel - Re: [PATCH v4 1/5] block: add disk sequence number

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Date:   Mon, 12 Jul 2021 07:25:21 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     Matteo Croce <mcroce@...ux.microsoft.com>
Cc:     linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Jens Axboe <axboe@...nel.dk>, linux-kernel@...r.kernel.org,
        Lennart Poettering <lennart@...ttering.net>,
        Luca Boccassi <bluca@...ian.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Damien Le Moal <damien.lemoal@....com>,
        Tejun Heo <tj@...nel.org>,
        Javier Gonz??lez <javier@...igon.com>,
        Niklas Cassel <niklas.cassel@....com>,
        Johannes Thumshirn <johannes.thumshirn@....com>,
        Hannes Reinecke <hare@...e.de>,
        Matthew Wilcox <willy@...radead.org>,
        Christoph Hellwig <hch@...radead.org>,
        JeffleXu <jefflexu@...ux.alibaba.com>
Subject: Re: [PATCH v4 1/5] block: add disk sequence number

On Sun, Jul 11, 2021 at 07:54:11PM +0200, Matteo Croce wrote:
> +void inc_diskseq(struct gendisk *disk)
> +{
> +	disk->diskseq = atomic64_inc_return(&diskseq);
> +}
> +EXPORT_SYMBOL_GPL(inc_diskseq);

No need to export inc_diskseq in the new world order.

Otherwise looks good:

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