Allow a metadata update to have a linked list of allocated spaces.

Sometimes one metadata update will require allocating several
larger data structures.  As 'monitor' cannot allocate, 'manager'
must, so it must be able to attach a list of allocates to the
update, and importantly it must be able to easily free them.

So add a 'space_list' element to metadata updates where each
element on the list starts with a pointer to the next.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/super-intel.c b/super-intel.c
index 68382513..43f75d9e 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -5357,6 +5357,7 @@ static struct mdinfo *imsm_activate_spare(struct active_array *a,
 	}
 			
 	mu->space = NULL;
+	mu->space_list = NULL;
 	mu->len = sizeof(struct imsm_update_activate_spare) * num_spares;
 	mu->next = *updates;
 	u = (struct imsm_update_activate_spare *) mu->buf;