Re: [resend v1 4/5] drivers/nvme/host/core.c: Convert to use disk_set_capacity

From: Chaitanya Kulkarni
Date: Sat Jan 04 2020 - 17:32:31 EST


Quick question here if user executes nvme ns-rescan /dev/nvme1
will following code result in triggering uevent(s) for
the namespace(s( for which there is no change in the size ?

If so is that an expected behavior ?

On 01/01/2020 11:54 PM, Balbir Singh wrote:
> block/genhd provides disk_set_capacity() for sending
> RESIZE notifications via uevents. This notification is
> newly added to NVME devices
>
> Signed-off-by: Balbir Singh <sblbir@xxxxxxxxxx>
> ---
> drivers/nvme/host/core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index 667f18f465be..cb214e914fc2 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -1808,7 +1808,7 @@ static void nvme_update_disk_info(struct gendisk *disk,
> ns->lba_shift > PAGE_SHIFT)
> capacity = 0;
>
> - set_capacity(disk, capacity);
> + disk_set_capacity(disk, capacity);
>
> nvme_config_discard(disk, ns);
> nvme_config_write_zeroes(disk, ns);
>