From: David S. Miller <davem@davemloft.net>
Date: Sat, 10 Nov 2012 03:37:59 +0000 (-0800)
Subject: sparc: Support atomic64_dec_if_positive properly.
X-Git-Tag: v3.7-rc5~2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=193d2aadc0ff5c687f6f0d5ef1d38c86ab511a14;p=pandora-kernel.git

sparc: Support atomic64_dec_if_positive properly.

Sparc32 already supported it, as a consequence of using the
generic atomic64 implementation.  And the sparc64 implementation
is rather trivial.

This allows us to set ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE for all
of sparc, and avoid the annoying warning from lib/atomic64_test.c

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