From: Egor Starkov <estarkov@ru.mvista.com>
To: mingo@elte.hu
Cc: rostedt@goodmis.org, linux-rt-users@vger.kernel.org,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org
Subject: PPC64 doesn't compile with CONFIG_SMP=n
Date: Thu, 20 Dec 2007 17:15:38 +0300 [thread overview]
Message-ID: <476A790A.2060203@ru.mvista.com> (raw)
[-- Attachment #1: Type: text/plain, Size: 288 bytes --]
Hello Ingo
I've found out that real-time tree doesn't compile for PPC64 with
CONFIG_SMP=n.
Think this is due to patch-2.6.21.4-rt10 patch. It has
definitions of following symbols missing: __get_cpu_lock,
__get_cpu_var_locked.
I've attached the patch to fix the problem.
Egor Starkov
[-- Attachment #2: powerpc_smp_bugfix --]
[-- Type: text/plain, Size: 572 bytes --]
Signed-off-by: Egor Starkov <estarkov@ru.mvista.com>
Index: linux-2.6.21/include/asm-powerpc/percpu.h
===================================================================
--- linux-2.6.21.orig/include/asm-powerpc/percpu.h
+++ linux-2.6.21/include/asm-powerpc/percpu.h
@@ -61,6 +61,8 @@ extern void setup_per_cpu_areas(void);
#define __get_cpu_var(var) per_cpu__##var
#define __raw_get_cpu_var(var) per_cpu__##var
+#define __get_cpu_lock(var, cpu) per_cpu_lock__##var##_locked
+#define __get_cpu_var_locked(var, cpu) per_cpu__##var##_locked
#endif /* SMP */
reply other threads:[~2007-12-20 14:37 UTC|newest]
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