From: David S. Miller <davem@sunset.davemloft.net>
Date: Fri, 27 Apr 2007 03:39:14 +0000 (-0700)
Subject: [AFS]: Eliminate cmpxchg() usage in vlocation code.
X-Git-Tag: v2.6.22-rc1~1128^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=39bf09493042200b967cdf2ee6e3f670b7963903;p=pandora-kernel.git

[AFS]: Eliminate cmpxchg() usage in vlocation code.

cmpxchg() is not available on every processor so can't
be used in generic code.

Replace with spinlock protection on the ->state changes,
wakeups, and wait loops.

Add what appears to be a missing wakeup on transition
to AFS_VL_VALID state in afs_vlocation_updater().

Signed-off-by: David S. Miller <davem@davemloft.net>
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