Merge branch 'core/locking' into tracing/ftrace

5 files changed, 14 insertions, 0 deletions

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5c44ed49ca93..a3803ea8c27d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1479,6 +1479,8 @@ __alloc_pages_internal(gfp_t gfp_mask, unsigned int order,
         unsigned long did_some_progress;
         unsigned long pages_reclaimed = 0;
 
+        lockdep_trace_alloc(gfp_mask);
+
         might_sleep_if(wait);
 
         if (should_fail_alloc_page(gfp_mask, order))
@@ -1578,12 +1580,15 @@ nofail_alloc:
          */
         cpuset_update_task_memory_state();
         p->flags |= PF_MEMALLOC;
+
+        lockdep_set_current_reclaim_state(gfp_mask);
         reclaim_state.reclaimed_slab = 0;
         p->reclaim_state = &reclaim_state;
 
         did_some_progress = try_to_free_pages(zonelist, order, gfp_mask);
 
         p->reclaim_state = NULL;
+        lockdep_clear_current_reclaim_state();
         p->flags &= ~PF_MEMALLOC;
 
         cond_resched();
diff --git a/mm/slab.c b/mm/slab.c
index aeeb4ecb9428..9ec66c3e6ee0 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3327,6 +3327,8 @@ __cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid,
         unsigned long save_flags;
         void *ptr;
 
+        lockdep_trace_alloc(flags);
+
         if (slab_should_failslab(cachep, flags))
                 return NULL;
 
@@ -3403,6 +3405,8 @@ __cache_alloc(struct kmem_cache *cachep, gfp_t flags, void *caller)
         unsigned long save_flags;
         void *objp;
 
+        lockdep_trace_alloc(flags);
+
         if (slab_should_failslab(cachep, flags))
                 return NULL;
 
diff --git a/mm/slob.c b/mm/slob.c
index f9cc24688232..596152926a8d 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -466,6 +466,8 @@ void *__kmalloc_node(size_t size, gfp_t gfp, int node)
         int align = max(ARCH_KMALLOC_MINALIGN, ARCH_SLAB_MINALIGN);
         void *ret;
 
+        lockdep_trace_alloc(flags);
+
         if (size < PAGE_SIZE - align) {
                 if (!size)
                         return ZERO_SIZE_PTR;
diff --git a/mm/slub.c b/mm/slub.c
index 6de5e07c8850..816734ed8aa3 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1597,6 +1597,7 @@ static __always_inline void *slab_alloc(struct kmem_cache *s,
         unsigned long flags;
         unsigned int objsize;
 
+        lockdep_trace_alloc(gfpflags);
         might_sleep_if(gfpflags & __GFP_WAIT);
 
         if (should_failslab(s->objsize, gfpflags))
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 6177e3bcd66b..ae6f4c174a12 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1965,6 +1965,8 @@ static int kswapd(void *p)
         };
         node_to_cpumask_ptr(cpumask, pgdat->node_id);
 
+        lockdep_set_current_reclaim_state(GFP_KERNEL);
+
         if (!cpumask_empty(cpumask))
                 set_cpus_allowed_ptr(tsk, cpumask);
         current->reclaim_state = &reclaim_state;