Merge remote branch 'benh/merge' into benh-next

4 files changed, 24 insertions, 12 deletions

diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index c5c24beb838..98c4b29a56f 100644
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -890,15 +890,6 @@ __secondary_start:
         mtspr   SPRN_SRR1,r4
         SYNC
         RFI
-
-_GLOBAL(start_secondary_resume)
-        /* Reset stack */
-        rlwinm  r1,r1,0,0,(31-THREAD_SHIFT)     /* current_thread_info() */
-        addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
-        li      r3,0
-        std     r3,0(r1)                /* Zero the stack frame pointer */
-        bl      start_secondary
-        b       .
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_KVM_BOOK3S_HANDLER
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 094bd9821ad..402560e957b 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -694,6 +694,17 @@ _GLOBAL(kernel_thread)
         addi    r1,r1,16
         blr
 
+#ifdef CONFIG_SMP
+_GLOBAL(start_secondary_resume)
+        /* Reset stack */
+        rlwinm  r1,r1,0,0,(31-THREAD_SHIFT)     /* current_thread_info() */
+        addi    r1,r1,THREAD_SIZE-STACK_FRAME_OVERHEAD
+        li      r3,0
+        std     r3,0(r1)                /* Zero the stack frame pointer */
+        bl      start_secondary
+        b       .
+#endif /* CONFIG_SMP */
+        
 /*
  * This routine is just here to keep GCC happy - sigh...
  */
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 55613e33e26..a6ae1cfad86 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -933,12 +933,16 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
         if (data && !(data & DABR_TRANSLATION))
                 return -EIO;
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
+        if (ptrace_get_breakpoints(task) < 0)
+                return -ESRCH;
+
         bp = thread->ptrace_bps[0];
         if ((!data) || !(data & (DABR_DATA_WRITE | DABR_DATA_READ))) {
                 if (bp) {
                         unregister_hw_breakpoint(bp);
                         thread->ptrace_bps[0] = NULL;
                 }
+                ptrace_put_breakpoints(task);
                 return 0;
         }
         if (bp) {
@@ -948,9 +952,12 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
                                         (DABR_DATA_WRITE | DABR_DATA_READ),
                                                         &attr.bp_type);
                 ret =  modify_user_hw_breakpoint(bp, &attr);
-                if (ret)
+                if (ret) {
+                        ptrace_put_breakpoints(task);
                         return ret;
+                }
                 thread->ptrace_bps[0] = bp;
+                ptrace_put_breakpoints(task);
                 thread->dabr = data;
                 return 0;
         }
@@ -965,9 +972,12 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
                                                         ptrace_triggered, task);
         if (IS_ERR(bp)) {
                 thread->ptrace_bps[0] = NULL;
+                ptrace_put_breakpoints(task);
                 return PTR_ERR(bp);
         }
 
+        ptrace_put_breakpoints(task);
+
 #endif /* CONFIG_HAVE_HW_BREAKPOINT */
 
         /* Move contents to the DABR register */
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 87517ab6d36..0eefccd3316 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -412,8 +412,6 @@ int __cpuinit __cpu_up(unsigned int cpu)
 {
         int rc, c;
 
-        secondary_ti = current_set[cpu];
-
         if (smp_ops == NULL ||
             (smp_ops->cpu_bootable && !smp_ops->cpu_bootable(cpu)))
                 return -EINVAL;
@@ -423,6 +421,8 @@ int __cpuinit __cpu_up(unsigned int cpu)
         if (rc)
                 return rc;
 
+        secondary_ti = current_set[cpu];
+
         /* Make sure callin-map entry is 0 (can be leftover a CPU
          * hotplug
          */