We can't allow overlapped locked ranges - otherwise
two different channels could be deadlocked.
So add a pending_locked_ranges to the bdev. When we
start a lock operation, check if the new range overlaps
one that's already locked. If so, put it on the pending
list. When an unlock operation completes, we will
check if any pending ranges can now be locked.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I2e3113216a195887b954533495ff200df14fadc1
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478537
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2a2b7296ee