Clear the exclusive monitor when returning from an exception

[safe/jmp/linux-2.6] / arch / arm / kernel / entry-armv.S

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 468425f..a332bc7 100644 (file)
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -161,6 +161,8 @@ ENDPROC(__und_invalid)
        @  r4 - orig_r0 (see pt_regs definition in ptrace.h)
        @
        stmia   r5, {r0 - r4}
+
+       asm_trace_hardirqs_off
        .endm
 
        .align  5
@@ -215,9 +217,6 @@ ENDPROC(__dabt_svc)
 __irq_svc:
        svc_entry
 
-#ifdef CONFIG_TRACE_IRQFLAGS
-       bl      trace_hardirqs_off
-#endif
 #ifdef CONFIG_PREEMPT
        get_thread_info tsk
        ldr     r8, [tsk, #TI_PREEMPT]          @ get preempt count
@@ -391,6 +390,8 @@ ENDPROC(__pabt_svc)
        @ Clear FP to mark the first stack frame
        @
        zero_fp
+
+       asm_trace_hardirqs_off
        .endm
 
        .macro  kuser_cmpxchg_check
@@ -445,9 +446,6 @@ __irq_usr:
        usr_entry
        kuser_cmpxchg_check
 
-#ifdef CONFIG_TRACE_IRQFLAGS
-       bl      trace_hardirqs_off
-#endif
        get_thread_info tsk
 #ifdef CONFIG_PREEMPT
        ldr     r8, [tsk, #TI_PREEMPT]          @ get preempt count
@@ -736,13 +734,6 @@ ENTRY(__switch_to)
 #ifdef CONFIG_MMU
        ldr     r6, [r2, #TI_CPU_DOMAIN]
 #endif
-#if __LINUX_ARM_ARCH__ >= 6
-#ifdef CONFIG_CPU_32v6K
-       clrex
-#else
-       strex   r5, r4, [ip]                    @ Clear exclusive monitor
-#endif
-#endif
 #if defined(CONFIG_HAS_TLS_REG)
        mcr     p15, 0, r3, c13, c0, 3          @ set TLS register
 #elif !defined(CONFIG_TLS_REG_EMUL)