Linux kernel bug fix: md/raid1:  be more cautious where we read-balance during resync.
Subsystem: drivers/md (drivers/md/raid1.c)
Bug type: crash, severity: high
Files changed: drivers/md/raid1.c
Introduced by majianpeng on 2013-11-19 15:19:18 +1100; fixed by NeilBrown on 2014-09-22 10:26:41 +1000 (lifetime: 306 days)