X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Fslab.c;h=052e7d64537eb61e71c780ff4a6ca653dff0750e;hb=1a781a777b2f6ac46523fe92396215762ced624d;hp=39d20f8a07916fc7bf77a8153d58c0cf8161c90e;hpb=5f78e4d33945b291d12765cdd7e4304f437b9361;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/mm/slab.c b/mm/slab.c
index 39d20f8..052e7d6 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -110,6 +110,7 @@
 #include	<linux/fault-inject.h>
 #include	<linux/rtmutex.h>
 #include	<linux/reciprocal_div.h>
+#include	<linux/debugobjects.h>
 
 #include	<asm/cacheflush.h>
 #include	<asm/tlbflush.h>
@@ -174,12 +175,14 @@
 			 SLAB_CACHE_DMA | \
 			 SLAB_STORE_USER | \
 			 SLAB_RECLAIM_ACCOUNT | SLAB_PANIC | \
-			 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD)
+			 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \
+			 SLAB_DEBUG_OBJECTS)
 #else
 # define CREATE_MASK	(SLAB_HWCACHE_ALIGN | \
 			 SLAB_CACHE_DMA | \
 			 SLAB_RECLAIM_ACCOUNT | SLAB_PANIC | \
-			 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD)
+			 SLAB_DESTROY_BY_RCU | SLAB_MEM_SPREAD | \
+			 SLAB_DEBUG_OBJECTS)
 #endif
 
 /*
@@ -858,7 +861,7 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 	*left_over = slab_size - nr_objs*buffer_size - mgmt_size;
 }
 
-#define slab_error(cachep, msg) __slab_error(__FUNCTION__, cachep, msg)
+#define slab_error(cachep, msg) __slab_error(__func__, cachep, msg)
 
 static void __slab_error(const char *function, struct kmem_cache *cachep,
 			char *msg)
@@ -1898,15 +1901,7 @@ static void check_poison_obj(struct kmem_cache *cachep, void *objp)
 #endif
 
 #if DEBUG
-/**
- * slab_destroy_objs - destroy a slab and its objects
- * @cachep: cache pointer being destroyed
- * @slabp: slab pointer being destroyed
- *
- * Call the registered destructor for each object in a slab that is being
- * destroyed.
- */
-static void slab_destroy_objs(struct kmem_cache *cachep, struct slab *slabp)
+static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slabp)
 {
 	int i;
 	for (i = 0; i < cachep->num; i++) {
@@ -1935,7 +1930,7 @@ static void slab_destroy_objs(struct kmem_cache *cachep, struct slab *slabp)
 	}
 }
 #else
-static void slab_destroy_objs(struct kmem_cache *cachep, struct slab *slabp)
+static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slabp)
 {
 }
 #endif
@@ -1953,7 +1948,7 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
 {
 	void *addr = slabp->s_mem - slabp->colouroff;
 
-	slab_destroy_objs(cachep, slabp);
+	slab_destroy_debugcheck(cachep, slabp);
 	if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) {
 		struct slab_rcu *slab_rcu;
 
@@ -2153,7 +2148,7 @@ kmem_cache_create (const char *name, size_t size, size_t align,
 	 */
 	if (!name || in_interrupt() || (size < BYTES_PER_WORD) ||
 	    size > KMALLOC_MAX_SIZE) {
-		printk(KERN_ERR "%s: Early error in slab %s\n", __FUNCTION__,
+		printk(KERN_ERR "%s: Early error in slab %s\n", __func__,
 				name);
 		BUG();
 	}
@@ -2451,7 +2446,7 @@ static void drain_cpu_caches(struct kmem_cache *cachep)
 	struct kmem_list3 *l3;
 	int node;
 
-	on_each_cpu(do_drain, cachep, 1, 1);
+	on_each_cpu(do_drain, cachep, 1);
 	check_irq_on();
 	for_each_online_node(node) {
 		l3 = cachep->nodelists[node];
@@ -3260,9 +3255,12 @@ retry:
 
 		if (cpuset_zone_allowed_hardwall(zone, flags) &&
 			cache->nodelists[nid] &&
-			cache->nodelists[nid]->free_objects)
+			cache->nodelists[nid]->free_objects) {
 				obj = ____cache_alloc_node(cache,
 					flags | GFP_THISNODE, nid);
+				if (obj)
+					break;
+		}
 	}
 
 	if (!obj) {
@@ -3760,6 +3758,8 @@ void kmem_cache_free(struct kmem_cache *cachep, void *objp)
 
 	local_irq_save(flags);
 	debug_check_no_locks_freed(objp, obj_size(cachep));
+	if (!(cachep->flags & SLAB_DEBUG_OBJECTS))
+		debug_check_no_obj_freed(objp, obj_size(cachep));
 	__cache_free(cachep, objp);
 	local_irq_restore(flags);
 }
@@ -3785,6 +3785,7 @@ void kfree(const void *objp)
 	kfree_debugcheck(objp);
 	c = virt_to_cache(objp);
 	debug_check_no_locks_freed(objp, obj_size(c));
+	debug_check_no_obj_freed(objp, obj_size(c));
 	__cache_free(c, (void *)objp);
 	local_irq_restore(flags);
 }
@@ -3930,7 +3931,7 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit,
 	}
 	new->cachep = cachep;
 
-	on_each_cpu(do_ccupdate_local, (void *)new, 1, 1);
+	on_each_cpu(do_ccupdate_local, (void *)new, 1);
 
 	check_irq_on();
 	cachep->batchcount = batchcount;