optimize a bit, and make sure we dont need a trailing slash for the last dir component

1 files changed, 10 insertions, 2 deletions

diff --git a/libq/xmkdir.c b/libq/xmkdir.c
index 9cb12274..a82edd04 100644
--- a/libq/xmkdir.c
+++ b/libq/xmkdir.c
@@ -3,17 +3,25 @@ static int mkdir_p(const char *path, mode_t mode)
 {
 	char *_p, *p, *s;
 
+	/* Assume that most of the time, only the last element
+	 * is missing.  So if we can mkdir it right away, bail. */
+	if (mkdir(path, mode) == 0 || errno == EEXIST)
+		return 0;
+
+	/* Build up the whole tree */
 	_p = p = xstrdup(path);
 
-	while (1) {
+	while (*p) {
 		/* Skip duplicate slashes */
 		while (*p == '/')
 			++p;
 
 		/* Find the next path element */
 		s = strchr(p, '/');
-		if (!s)
+		if (!s) {
+			mkdir(_p, mode);
 			break;
+		}
 
 		/* Make it */
 		*s = '\0';