PM / Hibernate: use rb_entry

Since the software suspend extents are organized in an rbtree, use rb_entry
instead of container_of, as it is semantically more appropriate in order to
get a node as it is iterated.

Signed-off-by: Davidlohr Bueso <dave@gnu.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 3c9d764eb0d8af7e2db7ec99888061a5a573b7ed..7c33ed200410843a97dc39f59da4080f270832e2 100644 (file)
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -126,7 +126,7 @@ static int swsusp_extents_insert(unsigned long swap_offset)
 
        /* Figure out where to put the new node */
        while (*new) {
-               ext = container_of(*new, struct swsusp_extent, node);
+               ext = rb_entry(*new, struct swsusp_extent, node);
                parent = *new;
                if (swap_offset < ext->start) {
                        /* Try to merge */