[SCSI] libfcoe: convert FIP to lock with mutex instead of spin lock
It turns out most of the FIP work is now done from worker threads or process context now, so there's no need to use a spin lock. Change to use mutex instead of spin lock and delayed_work instead of a timer. This will make it nicer for the VN_port to VN_port feature that will interact more with the libfc layers requiring that spinlocks not be held. Signed-off-by: NJoe Eykholt <jeykholt@cisco.com> Signed-off-by: NRobert Love <robert.w.love@intel.com> Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
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