* Create two new functions lock($subsystem)/unlock() to have more reliable locking using semaphores.

	This function can sleep till the resource is free and can help find not well behaving code.
* Remove most of the config_lock/config_unlock logics on the whole scripts/pages it is an abuse of this.
	If any sybsytem wants to lock can do so with its own lock.
* Lock the config when doing a filter reload to avoid parallell recursion on this function, since it is not reentrant.
	This compenstates for the removal of lock aquiring from the scripts/pages.
* config_lock/config_unlock are now compate shims that do nothing. They are preserved since packages 'abuse' them too.

1 files changed, 0 insertions, 4 deletions

diff --git a/usr/local/www/vpn_l2tp.php b/usr/local/www/vpn_l2tp.php
index 2e6829a..3c6cdea 100644
--- a/usr/local/www/vpn_l2tp.php
+++ b/usr/local/www/vpn_l2tp.php
@@ -138,11 +138,7 @@ if ($_POST) {
 		write_config();
 
 		$retval = 0;
-
-		config_lock();
 		$retval = vpn_l2tp_configure();
-		config_unlock();
-
 		$savemsg = get_std_save_message($retval);
 
 		/* if ajax is calling, give them an update message */