[SPARC64]: Mirror x86_64's PERCPU_ENOUGH_ROOM definition.

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 12 insertions, 5 deletions

diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index cc09d8266414..0a4958536bcd 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -1447,11 +1447,8 @@ void __init setup_per_cpu_areas(void)
         char *ptr;
 
         /* Copy section for each CPU (we discard the original) */
-        goal = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
-#ifdef CONFIG_MODULES
-        if (goal < PERCPU_ENOUGH_ROOM)
-                goal = PERCPU_ENOUGH_ROOM;
-#endif
+        goal = PERCPU_ENOUGH_ROOM;
+
         __per_cpu_shift = 0;
         for (size = 1UL; size < goal; size <<= 1UL)
                 __per_cpu_shift++;
diff --git a/include/asm-sparc64/percpu.h b/include/asm-sparc64/percpu.h
index ced8cbde046d..0d3df76aa47f 100644
--- a/include/asm-sparc64/percpu.h
+++ b/include/asm-sparc64/percpu.h
@@ -5,6 +5,16 @@
 
 #ifdef CONFIG_SMP
 
+#ifdef CONFIG_MODULES
+# define PERCPU_MODULE_RESERVE 8192
+#else
+# define PERCPU_MODULE_RESERVE 0
+#endif
+
+#define PERCPU_ENOUGH_ROOM \
+        (ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES) + \
+         PERCPU_MODULE_RESERVE)
+
 extern void setup_per_cpu_areas(void);
 
 extern unsigned long __per_cpu_base;