Currently Open-CAS uses single queue block interface,
which is removed in kernel in version 5.0.
From this moment on Open-CAS supports only blk-mq,
and single queue is not supported any longer.
Signed-off-by: Michal Rakowski <michal.rakowski@intel.com>
In case of error during cache stop exported object is not being restored after destroying.
This may result in bug in case of calling stop once more.
This commit fixes this issue - exported objects are restored.
Signed-off-by: Michal Rakowski <michal.rakowski@intel.com>
Functions and macros dependent on different kernel versions are now generated
before compilation basing on current kernel capabilities instead of hardcoding
them for specific kernels.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
