From: Jesper Dangaard Brouer <brouer@redhat.com>
Date: Mon, 28 Jan 2013 23:45:12 +0000 (+0000)
Subject: net: frag helper functions for mem limit tracking
X-Git-Tag: v3.9-rc1~139^2~232^2~2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d433673e5f9180e05a770c4b2ab18c08ad51cc21;p=pandora-kernel.git

net: frag helper functions for mem limit tracking

This change is primarily a preparation to ease the extension of memory
limit tracking.

The change does reduce the number atomic operation, during freeing of
a frag queue.  This does introduce a some performance improvement, as
these atomic operations are at the core of the performance problems
seen on NUMA systems.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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