Spdk/lib/vhost
Darek Stojaczyk 2fcc09ec34 vhost/scsi: ignore hotremoved devices in newly started sessions
This an optimization that slightly simplifies the
SCSI target management. Currently if a session is
started while an asynchronous SCSI target hotremove
request is pending, the newly started session will
inherit the target in the REMOVING state. It will be
probably removed from that session in the next
management poller tick, but all that complication
is completely unnecessary. The session shouldn't
have picked up the removed SCSI target when started.
It could have simply checked that the target is
being removed and could have ignored it. That's what
this patch does.

Since the hotremove event used the active session
counter to determine if the removal was additionally
deferred, it had to be refactored to use a separate
per-request context, as there's no longer a direct
relation between started sessions and sessions that
still need to remove the target.

Change-Id: Ib78765290fa337a7d0614e5efc271760e81e4e63
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449393
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2019-04-22 15:41:51 +00:00
..
rte_vhost rte_vhost: introduce get/set vring base idx APIs 2019-02-27 01:43:16 +00:00
Makefile vhost: install external msg handling hooks to rte_vhost 2019-03-13 14:26:20 +00:00
rte_vhost_compat.c vhost/compat: implement SET/GET_CONFIG 2019-03-15 22:03:26 +00:00
vhost_blk.c vhost: change vsession->lcore only within that lcore 2019-03-28 14:16:56 +00:00
vhost_internal.h vhost: change vsession->lcore only within that lcore 2019-03-28 14:16:56 +00:00
vhost_nvme.c vhost: change vsession->lcore only within that lcore 2019-03-28 14:16:56 +00:00
vhost_rpc.c configure: add option not to use the internal rte_vhost copy 2019-03-13 14:26:20 +00:00
vhost_scsi.c vhost/scsi: ignore hotremoved devices in newly started sessions 2019-04-22 15:41:51 +00:00
vhost.c vhost: change vsession->lcore only within that lcore 2019-03-28 14:16:56 +00:00