Merge upstream into ieee80211.

Hand-fix merge conflict in drivers/usb/net/zd1201.c.

3 files changed, 20 insertions, 12 deletions

diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index b15761ff4101..fa25e39fe54d 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -492,6 +492,14 @@ void __cpuinit start_secondary(void)
          */
         set_cpu_sibling_map(smp_processor_id());
 
+        /* 
+         * Wait for TSC sync to not schedule things before.
+         * We still process interrupts, which could see an inconsistent
+         * time in that window unfortunately. 
+         * Do this here because TSC sync has global unprotected state.
+         */
+        tsc_sync_wait();
+
         /*
          * We need to hold call_lock, so there is no inconsistency
          * between the time smp_call_function() determines number of
@@ -509,13 +517,6 @@ void __cpuinit start_secondary(void)
         per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE;
         unlock_ipi_call_lock();
 
-        mb();
-
-        /* Wait for TSC sync to not schedule things before.
-           We still process interrupts, which could see an inconsistent
-           time in that window unfortunately. */
-        tsc_sync_wait();
-
         cpu_idle();
 }
 
diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c
index 493819e543a5..ca914c3bd49c 100644
--- a/arch/x86_64/mm/fault.c
+++ b/arch/x86_64/mm/fault.c
@@ -211,9 +211,7 @@ int unhandled_signal(struct task_struct *tsk, int sig)
 {
         if (tsk->pid == 1)
                 return 1;
-        /* Warn for strace, but not for gdb */
-        if (!test_ti_thread_flag(tsk->thread_info, TIF_SYSCALL_TRACE) &&
-            (tsk->ptrace & PT_PTRACED))
+        if (tsk->ptrace & PT_PTRACED)
                 return 0;
         return (tsk->sighand->action[sig-1].sa.sa_handler == SIG_IGN) ||
                 (tsk->sighand->action[sig-1].sa.sa_handler == SIG_DFL);
diff --git a/arch/x86_64/pci/k8-bus.c b/arch/x86_64/pci/k8-bus.c
index c2c38b579939..d80c323669e0 100644
--- a/arch/x86_64/pci/k8-bus.c
+++ b/arch/x86_64/pci/k8-bus.c
@@ -47,13 +47,22 @@ fill_mp_bus_to_cpumask(void)
                          * if there are no busses hanging off of the current
                          * ldt link then both the secondary and subordinate
                          * bus number fields are set to 0.
+                         * 
+                         * RED-PEN
+                         * This is slightly broken because it assumes
+                         * HT node IDs == Linux node ids, which is not always
+                         * true. However it is probably mostly true.
                          */
                         if (!(SECONDARY_LDT_BUS_NUMBER(ldtbus) == 0
                                 && SUBORDINATE_LDT_BUS_NUMBER(ldtbus) == 0)) {
                                 for (j = SECONDARY_LDT_BUS_NUMBER(ldtbus);
                                      j <= SUBORDINATE_LDT_BUS_NUMBER(ldtbus);
-                                     j++)
-                                        pci_bus_to_node[j] = NODE_ID(nid);
+                                     j++) { 
+                                        int node = NODE_ID(nid);
+                                        if (!node_online(node))
+                                                node = 0;
+                                        pci_bus_to_node[j] = node;
+                                }               
                         }
                 }
         }