From: Jamal Hadi Salim <hadi@cyberus.ca>
Date: Fri, 19 Feb 2010 02:00:40 +0000 (+0000)
Subject: pfkey: fix SA and SP flush sequence
X-Git-Tag: v2.6.34-rc1~233^2~125
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8be987d73481831265d7e8c648bec838271bfd9b;p=pandora-kernel.git

pfkey: fix SA and SP flush sequence

RFC 2367 says flushing behavior should be:
1) user space -> kernel: flush
2) kernel: flush
3) kernel -> user space: flush event to ALL listeners

This is not realistic today in the presence of selinux policies
which may reject the flush etc. So we make the sequence become:
1) user space -> kernel: flush
2) kernel: flush
3) kernel -> user space: flush response to originater from #1
4) if there were no errors then:
kernel -> user space: flush event to ALL listeners

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
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