From 04ca6d3715d42277ef001f5a5252cd015d84279b Mon Sep 17 00:00:00 2001 From: Cody P Schafer Date: Wed, 13 Nov 2013 10:30:35 +0100 Subject: net ipset: use rbtree postorder iteration instead of opencoding Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead of opencoding an alternate postorder iteration that modifies the tree Signed-off-by: Cody P Schafer Signed-off-by: Jozsef Kadlecsik --- configure.ac | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index 228000b..b886778 100644 --- a/configure.ac +++ b/configure.ac @@ -313,6 +313,16 @@ else AC_SUBST(HAVE_USER_NS_IN_STRUCT_NET, undef) fi +AC_MSG_CHECKING([kernel source for rbtree_postorder_for_each_entry_safe]) +if test -f $ksourcedir/include/linux/rbtree.h && \ + $GREP -q 'rbtree_postorder_for_each_entry_safe' $ksourcedir/include/linux/rbtree.h; then + AC_MSG_RESULT(yes) + AC_SUBST(HAVE_RBTREE_POSTORDER_FOR_EACH_ENTRY_SAFE, define) +else + AC_MSG_RESULT(no) + AC_SUBST(HAVE_RBTREE_POSTORDER_FOR_EACH_ENTRY_SAFE, undef) +fi + AC_MSG_CHECKING([kernel source for struct net_generic]) if test -f $ksourcedir/include/net/netns/generic.h && \ $GREP -q 'struct net_generic' $ksourcedir/include/net/netns/generic.h; then -- cgit v1.2.3