From cfed7e1b1f8ed9b3d81ab12203cfb69c3ef24ac6 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 26 Mar 2015 12:39:38 +0000
Subject: [PATCH] netfilter: nf_tables: add set garbage collection helpers

Add helpers for GC batch destruction: since element destruction needs
a RCU grace period for all set implementations, add some helper functions
for asynchronous batch destruction. Elements are collected in a batch
structure, which is asynchronously released using RCU once its full.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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