linux-kernel - Re: [resend v1 5/5] drivers/scsi/sd.c: Convert to use disk_set

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Date:   Mon, 06 Jan 2020 22:48:30 -0500
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Balbir Singh <sblbir@...zon.com>
Cc:     <linux-kernel@...r.kernel.org>, <linux-block@...r.kernel.org>,
        <linux-nvme@...ts.infradead.org>, <axboe@...nel.dk>,
        <ssomesh@...zon.com>, <jejb@...ux.ibm.com>, <hch@....de>,
        <mst@...hat.com>, <Chaitanya.Kulkarni@....com>
Subject: Re: [resend v1 5/5] drivers/scsi/sd.c: Convert to use disk_set_capacity


Balbir,

> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
> index 5afb0046b12a..1a3be30b6b78 100644
> --- a/drivers/scsi/sd.c
> +++ b/drivers/scsi/sd.c
> @@ -3184,7 +3184,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
>  
>  	sdkp->first_scan = 0;
>  
> -	set_capacity(disk, logical_to_sectors(sdp, sdkp->capacity));
> +	disk_set_capacity(disk, logical_to_sectors(sdp, sdkp->capacity));
>  	sd_config_write_same(sdkp);
>  	kfree(buffer);

We already emit an SDEV_EVT_CAPACITY_CHANGE_REPORTED event if device
capacity changes. However, this event does not automatically cause
revalidation.

-- 
Martin K. Petersen	Oracle Linux Engineering