nvmet: move ka_work initialization to nvmet_alloc_ctrl

Initialize keep-alive work only once, as part of alloc_ctrl
and not each time that nvmet_start_keep_alive_timer is being called

Signed-off-by: Amit Engel <amit.engel@dell.com>
Reviewed-by: Hou Pu <houpu.main@gmail.com>
This commit is contained in:
Amit Engel 2021-04-22 15:33:16 +03:00 • committed by Christoph Hellwig
commit f6e8bd59c4