2 Commits

Author	SHA1	Message	Date
Christoph Lameter	d7c3f8cee8	percpu: Omit segment prefix in the UP case for cmpxchg_double ... Omit the segment prefix in the UP case. GS is not used then and we will generate segfaults if cmpxchg16b is used otherwise. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>	2011-03-27 19:25:36 -07:00
Christoph Lameter	b9ec40af0e	percpu, x86: Add arch-specific this_cpu_cmpxchg_double() support ... Support this_cpu_cmpxchg_double() using the cmpxchg16b and cmpxchg8b instructions. -tj: s/percpu_cmpxchg16b/percpu_cmpxchg16b_double/ for consistency and other cosmetic changes. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Tejun Heo <tj@kernel.org>	2011-02-28 11:20:49 +01:00