Re: [PATCH RFC 5/6] net: Generic resolver backend

diff --git a/net/core/resolver.c b/net/core/resolver.c
new file mode 100644
index 0000000..61b36c5
--- /dev/null
+++ b/net/core/resolver.c

@@ -0,0 +1,267 @@
+#include <linux/errno.h>
+#include <linux/ip.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/skbuff.h>
+#include <linux/socket.h>
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <net/checksum.h>
+#include <net/ip.h>
+#include <net/ip6_fib.h>
+#include <net/lwtunnel.h>
+#include <net/protocol.h>
+#include <net/resolver.h>
+#include <uapi/linux/ila.h>

+
+static struct net_rslv_ent *net_rslv_new_ent(struct net_rslv *nrslv,
+					     void *key)

+{
+	struct net_rslv_ent *nrent;
+	int err;
+
+	nrent = kzalloc(sizeof(*nrent) + nrslv->obj_size, GFP_KERNEL);

+	if (!nrent)
+		return ERR_PTR(-EAGAIN);
+
+	/* Key is always at beginning of object data */
+	memcpy(nrent->object, key, nrslv->params.key_len);
+
+	/* Initialize user data */
+	if (nrslv->rslv_init)
+		nrslv->rslv_init(nrslv, nrent);
+
+	/* Put in hash table */
+	err = rhashtable_lookup_insert_fast(&nrslv->rhash_table,
+					    &nrent->node, nrslv->params);
+	if (err)
+		return ERR_PTR(err);
+
+	if (nrslv->timeout) {
+		/* Schedule timeout for resolver */
+		INIT_DELAYED_WORK(&nrent->timeout_work, net_rslv_delayed_work);

+		schedule_delayed_work(&nrent->timeout_work, nrslv->timeout);
+	}
+
+	nrent->nrslv = nrslv;