tree b1848af670eb9f67961f7abc7cd5a19a07b9b37e
parent 72a23c211e4587859d5bf61ac4962d76e593fb02
author Neil Brown <neilb@notabene.brown> 1214605903 +1000
committer Neil Brown <neilb@notabene.brown> 1214605903 +1000

Make sure all changes to md/degraded are notified.

When a device fails, when a spare is activated, when
an array is reshaped, or when an array is started,
the extent to which the array is degraded can change.

Signed-off-by: Neil Brown <neilb@suse.de>