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-rw-r--r--mm/slab.c14
-rw-r--r--mm/slub.c3
2 files changed, 5 insertions, 12 deletions
diff --git a/mm/slab.c b/mm/slab.c
index 046607f..b4aa4c8 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1901,15 +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++) {
@@ -1938,7 +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
@@ -1956,7 +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;
diff --git a/mm/slub.c b/mm/slub.c
index 5f6e2c4..488400d 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -411,7 +411,7 @@ static void set_track(struct kmem_cache *s, void *object,
if (addr) {
p->addr = addr;
p->cpu = smp_processor_id();
- p->pid = current ? current->pid : -1;
+ p->pid = current->pid;
p->when = jiffies;
} else
memset(p, 0, sizeof(struct track));
@@ -2766,6 +2766,7 @@ void kfree(const void *x)
page = virt_to_head_page(x);
if (unlikely(!PageSlab(page))) {
+ BUG_ON(!PageCompound(page));
put_page(page);
return;
}