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[IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask
authorPetr Tesarik <ptesarik@suse.cz>
Wed, 15 Sep 2010 22:35:48 +0000 (15:35 -0700)
committerTony Luck <tony.luck@intel.com>
Wed, 15 Sep 2010 22:35:48 +0000 (15:35 -0700)
commit2d2b6901649a62977452be85df53eda2412def24
tree622553b837759352a334a350d52f1f2d7652c9c1tree | snapshot (tar.bz2 tar.gz zip)
parentbfa88ea7ee9e6b4fd673e45a8cc0a8e0b7ef4761commit | diff
[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>
arch/ia64/kernel/fsys.S diff | blob | blame | history
Clone of davem's net-next-2.6 tree