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We don't need all these states. The code refactored to use two boolean variables looks simpler. While moving the comment in nbd_co_establish_connection() rework it to give better information. Also, we are going to move the connection code to separate file and mentioning drained section would be confusing. Improve also the comment in NBDConnectThread, while dropping removed state names from it. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20210610100802.5888-12-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: comment tweak] Signed-off-by: Eric Blake <eblake@redhat.com>