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rbtree_test: add test for postorder iteration

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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>
This commit is contained in:
Cody P Schafer 2013-09-11 14:25:17 -07:00 committed by Linus Torvalds
parent 2b52908925
commit a791a62fdf
1 changed files with 12 additions and 0 deletions
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12
lib/rbtree_test.c
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@ -114,6 +114,16 @@ static int black_path_count(struct rb_node *rb)
return count;
}
static void check_postorder(int nr_nodes)
{
struct rb_node *rb;
int count = 0;
for (rb = rb_first_postorder(&root); rb; rb = rb_next_postorder(rb))
count++;
WARN_ON_ONCE(count != nr_nodes);
}
static void check(int nr_nodes)
{
struct rb_node *rb;
@ -136,6 +146,8 @@ static void check(int nr_nodes)
WARN_ON_ONCE(count != nr_nodes);
WARN_ON_ONCE(count < (1 << black_path_count(rb_last(&root))) - 1);
check_postorder(nr_nodes);
}
static void check_augmented(int nr_nodes)