Re: [PATCH 1/6] md: switch to ->check_events for media change notifications

Guoqing Jiang
2020-07-08T13:36:44Z

On 7/8/20 3:23 PM, Matthew Wilcox wrote:
> 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.
> You missed this hunk:
>
> +static unsigned int md_check_events(struct gendisk *disk, unsigned int clearing)
> {
> struct mddev *mddev = disk->private_data;
> + unsigned int ret = 0;
>
> + if (mddev->changed)
> + ret = DISK_EVENT_MEDIA_CHANGE;
> mddev->changed = 0;
> - return 0;
> + return ret;
> }
>

Yes, sorry for the noise.

Thanks,
Guoqing