1 files changed, 1 insertions, 14 deletions
diff --git a/cache.c b/cache.c
index 900b161..801e63f 100644
--- a/cache.c
+++ b/cache.c
@@ -161,23 +161,10 @@ static int close_lock(struct cache_slot *slot)
  */
 static int lock_slot(struct cache_slot *slot)
 {
-	struct flock lock = {
-		.l_type = F_WRLCK,
-		.l_whence = SEEK_SET,
-		.l_start = 0,
-		.l_len = 0,
-	};
-
-	slot->lock_fd = open(slot->lock_name, O_RDWR | O_CREAT,
+	slot->lock_fd = open(slot->lock_name, O_RDWR | O_CREAT | O_EXCL,
 			     S_IRUSR | S_IWUSR);
 	if (slot->lock_fd == -1)
 		return errno;
-	if (fcntl(slot->lock_fd, F_SETLK, &lock) < 0) {
-		int saved_errno = errno;
-		close(slot->lock_fd);
-		slot->lock_fd = -1;
-		return saved_errno;
-	}
 	if (xwrite(slot->lock_fd, slot->key, slot->keylen + 1) < 0)
 		return errno;
 	return 0;