From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 28 Feb 2012 19:46:04 +0000 (+0000)
Subject: x86: vdso: Use seqcount instead of seqlock
X-Git-Tag: v3.4-rc1~44^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ab516575f2f273b19d95140d02c54612201e80a;p=pandora-kernel.git

x86: vdso: Use seqcount instead of seqlock

The update of the vdso data happens under xtime_lock, so adding a
nested lock is pointless. Just use a seqcount to sync the readers.

Reviewed-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
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