tree cb9542b1391dabc136ce0052eb28948e77a6e2e5
parent 2ac8740151b082f045e58010eb92560c3a23a0e9
author NeilBrown <neilb@suse.de> 1275385049 +1000
committer NeilBrown <neilb@suse.de> 1280112788 +1000

md/plug: optionally use plugger to unplug an array during resync/recovery.

If an array doesn't have a 'queue' then md_do_sync cannot
unplug it.
In that case it will have a 'plugger', so make that available
to the mddev, and use it to unplug the array if needed.

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