Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Wed, 8 Jul 2020 15:23:28 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Cc:     Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
        Song Liu <song@kernel.org>,
        Ulf Hansson <ulf.hansson@linaro.org>,
        linux-kernel@vger.kernel.org, linux-xtensa@linux-xtensa.org,
        linux-block@vger.kernel.org, linux-raid@vger.kernel.org,
        linux-mmc@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH 1/6] md: switch to ->check_events for media change
 notifications
Message-ID: <20200708132328.GA21223@lst.de>
References: <20200708122546.214579-1-hch@lst.de> <20200708122546.214579-2-hch@lst.de> <09cd4827-52ae-0e7c-c3d3-e9a6cd27ff2b@cloud.ionos.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <09cd4827-52ae-0e7c-c3d3-e9a6cd27ff2b@cloud.ionos.com>
User-Agent: Mutt/1.5.17 (2007-11-01)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Wed, Jul 08, 2020 at 03:17:31PM +0200, Guoqing Jiang wrote:
> On 7/8/20 2:25 PM, Christoph Hellwig wrote:
>> -static int md_media_changed(struct gendisk *disk)
>> -{
>> -	struct mddev *mddev = disk->private_data;
>> -
>> -	return mddev->changed;
>> -}
>
> Maybe we can remove "changed" from struct mddev since no one reads it
> after the change.

The new md_check_events method reads it.