Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  slab: rename slab_destroy_objs
  slub: current is always valid
  slub: Add check for kfree() of non slab objects.

diff --git a/mm/slab.c b/mm/slab.c
index 046607f05f3eb16414538201836c6e605135b0e8..b4aa4c88250ea8db315fccc099ee5b99321b90b4 100644 (file)
--- 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 5f6e2c4a2ba7cbf51e85961eaa56b9d3f82981f0..488400d107007bfc60b63050cf8b2969d4e9f952 100644 (file)
--- 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;
        }