md: rename ->stop to ->free

Now that the ->stop function only frees the private data,
rename is accordingly.

Also pass in the private pointer as an arg rather than using
mddev->private.  This flexibility will be useful in level_store().

Finally, don't clear ->private.  It doesn't make sense to clear
it seeing that isn't what we free, and it is no longer necessary
to clear ->private (it was some time ago before  ->to_remove was
introduced).

Setting ->to_remove in ->free() is a bit of a wart, but not a
big problem at the moment.

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

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/md/md.h b/drivers/md/md.h
index bee5b852c33f..37e7c17e56a6 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -465,7 +465,7 @@ struct md_personality
         struct module *owner;
         void (*make_request)(struct mddev *mddev, struct bio *bio);
         int (*run)(struct mddev *mddev);
-        int (*stop)(struct mddev *mddev);
+        void (*free)(struct mddev *mddev, void *priv);
         void (*status)(struct seq_file *seq, struct mddev *mddev);
         /* error_handler must set ->faulty and clear ->in_sync
          * if appropriate, and should abort recovery if needed