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authorTakashi Iwai <tiwai@suse.de>2012-07-18 13:53:06 +0200
committerTakashi Iwai <tiwai@suse.de>2012-07-18 13:53:06 +0200
commit61eab000f3536f080eab43fd5eed3fd817ded76e (patch)
treed1448b3b90c5650b522c8d13d8bdd7bd65a5cf52 /lib/radix-tree.c
parent68e67f40b7343383517c3f951b4b8db7626406bc (diff)
parent4e01ec636e64707d202a1ca21a47bbc6d53085b7 (diff)
Merge branch 'topic/hda' into for-next
This is a large chunk merge for 3.6 HD-audio things
Diffstat (limited to 'lib/radix-tree.c')
-rw-r--r--lib/radix-tree.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index d7c878cc006c..e7964296fd50 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -686,6 +686,9 @@ void **radix_tree_next_chunk(struct radix_tree_root *root,
* during iterating; it can be zero only at the beginning.
* And we cannot overflow iter->next_index in a single step,
* because RADIX_TREE_MAP_SHIFT < BITS_PER_LONG.
+ *
+ * This condition also used by radix_tree_next_slot() to stop
+ * contiguous iterating, and forbid swithing to the next chunk.
*/
index = iter->next_index;
if (!index && iter->index)