Scott Teel
3d38f00c41
scsi: hpsa: separate monitor events from rescan worker
...
create new worker thread to monitor controller events
- both the rescan and event monitor workers can cause a rescan to occur
however for multipath we have found that we need to respond faster
than the normal scheduled rescan interval for path fail-overs.
- getting controller events only involves reading a register, but the
rescan worker can obtain an updated LUN list when there is a PTRAID
device present.
- move common code to a separate function.
advantages:
- detect controller events more frequently.
- leave rescan thread interval at 30 seconds.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-06-12 20:48:01 -04:00
..
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