diff options
author | Cody P Schafer <cody@linux.vnet.ibm.com> | 2013-09-11 17:25:17 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 18:59:20 -0400 |
commit | a791a62fdf288b2658646e2052400d456874790e (patch) | |
tree | 8412e41213fca92c65f56e6f312ef8b9545cf35c /lib/rbtree_test.c | |
parent | 2b529089257705499207ce7da9d0e3ae26a844ba (diff) |
rbtree_test: add test for postorder iteration
Just check that we examine all nodes in the tree for the postorder
iteration.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Reviewed-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/rbtree_test.c')
-rw-r--r-- | lib/rbtree_test.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c index 122f02f9941b..31dd4ccd3baa 100644 --- a/lib/rbtree_test.c +++ b/lib/rbtree_test.c | |||
@@ -114,6 +114,16 @@ static int black_path_count(struct rb_node *rb) | |||
114 | return count; | 114 | return count; |
115 | } | 115 | } |
116 | 116 | ||
117 | static void check_postorder(int nr_nodes) | ||
118 | { | ||
119 | struct rb_node *rb; | ||
120 | int count = 0; | ||
121 | for (rb = rb_first_postorder(&root); rb; rb = rb_next_postorder(rb)) | ||
122 | count++; | ||
123 | |||
124 | WARN_ON_ONCE(count != nr_nodes); | ||
125 | } | ||
126 | |||
117 | static void check(int nr_nodes) | 127 | static void check(int nr_nodes) |
118 | { | 128 | { |
119 | struct rb_node *rb; | 129 | struct rb_node *rb; |
@@ -136,6 +146,8 @@ static void check(int nr_nodes) | |||
136 | 146 | ||
137 | WARN_ON_ONCE(count != nr_nodes); | 147 | WARN_ON_ONCE(count != nr_nodes); |
138 | WARN_ON_ONCE(count < (1 << black_path_count(rb_last(&root))) - 1); | 148 | WARN_ON_ONCE(count < (1 << black_path_count(rb_last(&root))) - 1); |
149 | |||
150 | check_postorder(nr_nodes); | ||
139 | } | 151 | } |
140 | 152 | ||
141 | static void check_augmented(int nr_nodes) | 153 | static void check_augmented(int nr_nodes) |