From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Fri, 10 Aug 2007 22:50:30 +0000 (-0700)
Subject: [IPVS]: Use IP_VS_WAIT_WHILE when encessary.
X-Git-Tag: v2.6.23-rc4~137^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cae7ca3d3de48851e929de9469397749638df779;p=pandora-kernel.git

[IPVS]: Use IP_VS_WAIT_WHILE when encessary.

For architectures that don't have a volatile atomic_ts constructs like
while (atomic_read(&something)); might result in endless loops since a
barrier() is missing which forces the compiler to generate code that
actually reads memory contents.
Fix this in ipvs by using the IP_VS_WAIT_WHILE macro which resolves to
while (expr) { cpu_relax(); }
(why isn't this open coded btw?)

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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