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-rw-r--r--kernel/lockdep.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index 022d2ed7fd8..3673a3f44d9 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2260,7 +2260,7 @@ 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;
@@ -2279,12 +2279,29 @@ 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)
{
/*