When device is changed, e.g. the underlying bdev is
hotremoved, all sessions need to be notified. For
instance, Vhost-SCSI would send an additional hotremove
eventq message. That's why we introduce a helper
function to iterate through all active sessions.
Eventually, we may want to poll different sessions
from different lcores, so there will be some kind of
internal cross-lcore message management required
- just like there is one for spdk_vhost_call_external_event_foreach().
For now, though, we can get away with a dumbest
implementation.
We still want to keep this API internal for the time
being. The end-user (RPC) should only modify the
device, and the whole concept of sessions should be
completely encapsulated.
Change-Id: I2e142632c07a23daeac15cabea4cffecf984e455
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/418736
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
1e18d9cd9d