From: Petr Tesarik <ptesarik@suse.cz>
Date: Wed, 15 Sep 2010 22:35:48 +0000 (-0700)
Subject: [IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask
X-Git-Tag: v2.6.36-rc5~23^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2d2b6901649a62977452be85df53eda2412def24;p=pandora-kernel.git

[IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask

Tony's fix (f574c843191728d9407b766a027f779dcd27b272) has a small bug,
it incorrectly uses "r3" as a scratch register in the first of the two
unlock paths ... it is also inefficient.  Optimize the fast path again.

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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