tree ffb4662582ae9357408d90d83a2e816923b055a3
parent f2076e7d0643d15b11db979acc7cffd2e8d69e77
author Song Liu <songliubraving@fb.com> 1444366453 -0700
committer NeilBrown <neilb@suse.com> 1446346109 +1100

MD: when RAID journal is missing/faulty, block RESTART_ARRAY_RW

When RAID-4/5/6 array suffers from missing journal device, we put
the array in read only state. We should not allow trasition to
read-write states (clean and active) before replacing journal device.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.com>