On Mon, Jan 06, 2020 at 10:48:30PM -0500, Martin K. Petersen wrote: > > 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. Who is looking at these sdev specific events? (And who is looking at the virtio/xenblk ones?) It makes a lot of sense to have one event supported by all devices. But don't ask me which one would be the best..