5 files changed, 13 insertions, 9 deletions

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index 9336f2e89e40..ac1f850d4937 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -252,7 +252,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs)
         mask_ack_irq(desc, irq);
 
         if (unlikely(desc->status & IRQ_INPROGRESS))
-                goto out;
+                goto out_unlock;
         desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
         kstat_cpu(cpu).irqs[irq]++;
 
@@ -263,7 +263,7 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs)
         action = desc->action;
         if (unlikely(!action || (desc->status & IRQ_DISABLED))) {
                 desc->status |= IRQ_PENDING;
-                goto out;
+                goto out_unlock;
         }
 
         desc->status |= IRQ_INPROGRESS;
@@ -276,9 +276,9 @@ handle_level_irq(unsigned int irq, struct irq_desc *desc, struct pt_regs *regs)
 
         spin_lock(&desc->lock);
         desc->status &= ~IRQ_INPROGRESS;
-out:
         if (!(desc->status & IRQ_DISABLED) && desc->chip->unmask)
                 desc->chip->unmask(irq);
+out_unlock:
         spin_unlock(&desc->lock);
 }
 
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index 872f91ba2ce8..35f10f7ff94a 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -63,8 +63,7 @@ void check_irq_resend(struct irq_desc *desc, unsigned int irq)
         desc->chip->enable(irq);
 
         if ((status & (IRQ_PENDING | IRQ_REPLAY)) == IRQ_PENDING) {
-                desc->status &= ~IRQ_PENDING;
-                desc->status = status | IRQ_REPLAY;
+                desc->status = (status & ~IRQ_PENDING) | IRQ_REPLAY;
 
                 if (!desc->chip || !desc->chip->retrigger ||
                                         !desc->chip->retrigger(irq)) {
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 1d32defa38ab..5c470c57fb57 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -197,11 +197,12 @@ static void __call_usermodehelper(void *data)
 {
         struct subprocess_info *sub_info = data;
         pid_t pid;
+        int wait = sub_info->wait;
 
         /* CLONE_VFORK: wait until the usermode helper has execve'd
          * successfully We need the data structures to stay around
          * until that is done.  */
-        if (sub_info->wait)
+        if (wait)
                 pid = kernel_thread(wait_for_helper, sub_info,
                                     CLONE_FS | CLONE_FILES | SIGCHLD);
         else
@@ -211,7 +212,7 @@ static void __call_usermodehelper(void *data)
         if (pid < 0) {
                 sub_info->retval = pid;
                 complete(sub_info->complete);
-        } else if (!sub_info->wait)
+        } else if (!wait)
                 complete(sub_info->complete);
 }
 
diff --git a/kernel/lockdep_internals.h b/kernel/lockdep_internals.h
index 0d355f24fe04..eab043c83bb2 100644
--- a/kernel/lockdep_internals.h
+++ b/kernel/lockdep_internals.h
@@ -27,7 +27,7 @@
  * Stack-trace: tightly packed array of stack backtrace
  * addresses. Protected by the hash_lock.
  */
-#define MAX_STACK_TRACE_ENTRIES 131072UL
+#define MAX_STACK_TRACE_ENTRIES 262144UL
 
 extern struct list_head all_lock_classes;
 
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index 436ab35f6fa7..523e46483b99 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -241,12 +241,16 @@ static void rcu_do_batch(struct rcu_data *rdp)
                 next = rdp->donelist = list->next;
                 list->func(list);
                 list = next;
-                rdp->qlen--;
                 if (++count >= rdp->blimit)
                         break;
         }
+
+        local_irq_disable();
+        rdp->qlen -= count;
+        local_irq_enable();
         if (rdp->blimit == INT_MAX && rdp->qlen <= qlowmark)
                 rdp->blimit = blimit;
+
         if (!rdp->donelist)
                 rdp->donetail = &rdp->donelist;
         else