selinux: reduce the number of calls to synchronize_net() when flushing caches
When flushing the AVC, such as during a policy load, the various
network caches are also flushed, with each making a call to
synchronize_net() which has shown to be expensive in some cases.
This patch consolidates the network cache flushes into a single AVC
callback which only calls synchronize_net() once for each AVC cache
flush.
Reported-by: Jaejyn Shin <flagon22bass@gmail.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
diff --git a/security/selinux/include/netif.h b/security/selinux/include/netif.h
index 43d5072..57c6eae 100644
--- a/security/selinux/include/netif.h
+++ b/security/selinux/include/netif.h
@@ -17,6 +17,8 @@
#ifndef _SELINUX_NETIF_H_
#define _SELINUX_NETIF_H_
+void sel_netif_flush(void);
+
int sel_netif_sid(int ifindex, u32 *sid);
#endif /* _SELINUX_NETIF_H_ */