tree 623ac0e21c0f21c851c4dcffe8b317d41aafdb98
parent 206c5f60a3d902bc4b56dab2de3e88de5eb06108
author NeilBrown <neilb@suse.de> 1414532990 +1100
committer NeilBrown <neilb@suse.de> 1416176266 +1100

md: Always set RECOVERY_NEEDED when clearing RECOVERY_FROZEN

md_check_recovery will skip any recovery and also clear
MD_RECOVERY_NEEDED if MD_RECOVERY_FROZEN is set.
So when we clear _FROZEN, we must set _NEEDED and ensure that
md_check_recovery gets run.
Otherwise we could miss out on something that is needed.

In particular, this can make it impossible to remove a
failed device from an array is the  'recovery-needed' processing
didn't happen.
Suitable for stable kernels since 3.13.

Cc: stable@vger.kernel.org (3.13+)
Reported-and-tested-by: Joe Lawrence <joe.lawrence@stratus.com>
Fixes: 30b8feb730f9b9b3c5de02580897da03f59b6b16
Signed-off-by: NeilBrown <neilb@suse.de>