On Wed, Jan 04, 2023 at 01:09:16PM +0100, Heiko Carstens wrote:
On Mon, Dec 19, 2022 at 04:35:32PM +0100, Peter Zijlstra wrote:
quoted
In order to replace cmpxchg_double() with the newly minted
cmpxchg128() family of functions, wire it up in this_cpu_cmpxchg().
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
...
quoted
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
+#define this_cpu_cmpxchg_16(pcp, oval, nval) \
+({ \
+ u128 old__ = __pcpu_cast_128((nval), (nval)); \
+ u128 new__ = __pcpu_cast_128((oval), (oval)); \
spot the bug... please merge the below into this patch.
D'oh, luckily I got a fresh pile of brown paper bags for xmas.