In spdk_fio_setup when the connections are too many,
for example 16 subsystems, it would take too much time to
complete the probe. And it takes the mutex that makes the
poll_ctrlr function can't send the keep alive cmd which
causes the target timeout. Split the mutex so the poll_ctrlr
has the chance to sent keep alive.
Fixes issue: #1286
Change-Id: I300513b5e8761d9eaadb4c5cbc8ed97fe84d02df
Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1407
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
89519ebc49