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rbtree_test: add extra rbtree integrity check 

Account for the rbtree having  2**bh(v)-1 internal nodes.

While this can be seen as a consequence of other checks, Michel states
that it nicely sums up what the other properties are for.

Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Reviewed-by: 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:
Davidlohr Bueso 2013-04-30 15:28:24 -07:00 committed by Linus Torvalds
parent 31c3a3fe07
commit 4130f0efbf
1 changed files with 3 additions and 2 deletions
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5
lib/rbtree_test.c
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@ -117,8 +117,7 @@ static int black_path_count(struct rb_node *rb)
static void check(int nr_nodes)
{
struct rb_node *rb;
int count = 0;
int blacks = 0;
int count = 0, blacks = 0;
u32 prev_key = 0;
for (rb = rb_first(&root); rb; rb = rb_next(rb)) {
@ -134,7 +133,9 @@ static void check(int nr_nodes)
prev_key = node->key;
count++;
}
WARN_ON_ONCE(count != nr_nodes);
WARN_ON_ONCE(count < (1 << black_path_count(rb_last(&root))) - 1);
}
static void check_augmented(int nr_nodes)