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| author | Alan Cox <alc@FreeBSD.org> | 2013-08-23 17:27:12 +0000 |
|---|---|---|
| committer | Alan Cox <alc@FreeBSD.org> | 2013-08-23 17:27:12 +0000 |
| commit | 776cad90ffd4d58695d87a2f920e5f017cb14565 (patch) | |
| tree | b3d35fed9a216baba77d1d4ee4e085d1772299e9 /sys/vm/vm_radix.c | |
| parent | d23db150208361f11994a54c7522fe62e0374423 (diff) | |
| download | src-776cad90ffd4d58695d87a2f920e5f017cb14565.tar.gz src-776cad90ffd4d58695d87a2f920e5f017cb14565.zip | |
Notes
Diffstat (limited to 'sys/vm/vm_radix.c')
| -rw-r--r-- | sys/vm/vm_radix.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sys/vm/vm_radix.c b/sys/vm/vm_radix.c index 8698738c8503..ff311b2d5b55 100644 --- a/sys/vm/vm_radix.c +++ b/sys/vm/vm_radix.c @@ -432,6 +432,21 @@ restart: } /* + * Returns TRUE if the specified radix tree contains a single leaf and FALSE + * otherwise. + */ +boolean_t +vm_radix_is_singleton(struct vm_radix *rtree) +{ + struct vm_radix_node *rnode; + + rnode = vm_radix_getroot(rtree); + if (rnode == NULL) + return (FALSE); + return (vm_radix_isleaf(rnode)); +} + +/* * Returns the value stored at the index. If the index is not present, * NULL is returned. */ |