Goal is to have vmstat_shepherd to transfer from
per-CPU counters to global counters remotely. For this,
an atomic this_cpu_cmpxchg is necessary.
Add this_cpu_cmpxchg_local_ helpers to asm-generic/percpu.h.
Signed-off-by: Marcelo Tosatti <[email protected]>
Index: linux-vmstat-remote/include/asm-generic/percpu.h
===================================================================
--- linux-vmstat-remote.orig/include/asm-generic/percpu.h
+++ linux-vmstat-remote/include/asm-generic/percpu.h
@@ -424,6 +424,23 @@ do { \
this_cpu_generic_cmpxchg(pcp, oval, nval)
#endif
+#ifndef this_cpu_cmpxchg_local_1
+#define this_cpu_cmpxchg_local_1(pcp, oval, nval) \
+ this_cpu_generic_cmpxchg(pcp, oval, nval)
+#endif
+#ifndef this_cpu_cmpxchg_local_2
+#define this_cpu_cmpxchg_local_2(pcp, oval, nval) \
+ this_cpu_generic_cmpxchg(pcp, oval, nval)
+#endif
+#ifndef this_cpu_cmpxchg_local_4
+#define this_cpu_cmpxchg_local_4(pcp, oval, nval) \
+ this_cpu_generic_cmpxchg(pcp, oval, nval)
+#endif
+#ifndef this_cpu_cmpxchg_local_8
+#define this_cpu_cmpxchg_local_8(pcp, oval, nval) \
+ this_cpu_generic_cmpxchg(pcp, oval, nval)
+#endif
+
#ifndef this_cpu_cmpxchg_double_1
#define this_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \
this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)