Merge branch 'linus' into locking-for-linus
[sfrench/cifs-2.6.git] / kernel / lockdep.c
index 9a1e2bcc4b8d2062ad72d491f19ef49e7e18434d..981cd4854281458cc78e2e4730ee93df075287f4 100644 (file)
@@ -2254,7 +2254,7 @@ void trace_softirqs_off(unsigned long ip)
                debug_atomic_inc(&redundant_softirqs_off);
 }
 
-void lockdep_trace_alloc(gfp_t gfp_mask)
+static void __lockdep_trace_alloc(gfp_t gfp_mask, unsigned long flags)
 {
        struct task_struct *curr = current;
 
@@ -2273,12 +2273,29 @@ void lockdep_trace_alloc(gfp_t gfp_mask)
        if (!(gfp_mask & __GFP_FS))
                return;
 
-       if (DEBUG_LOCKS_WARN_ON(irqs_disabled()))
+       if (DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)))
                return;
 
        mark_held_locks(curr, RECLAIM_FS);
 }
 
+static void check_flags(unsigned long flags);
+
+void lockdep_trace_alloc(gfp_t gfp_mask)
+{
+       unsigned long flags;
+
+       if (unlikely(current->lockdep_recursion))
+               return;
+
+       raw_local_irq_save(flags);
+       check_flags(flags);
+       current->lockdep_recursion = 1;
+       __lockdep_trace_alloc(gfp_mask, flags);
+       current->lockdep_recursion = 0;
+       raw_local_irq_restore(flags);
+}
+
 static int mark_irqflags(struct task_struct *curr, struct held_lock *hlock)
 {
        /*