diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 47faf27..7f1e929 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -64,7 +64,7 @@
 /* Host-dependent types and defines */
 
 #define ACPI_MACHINE_WIDTH          BITS_PER_LONG
-#define acpi_cache_t                        kmem_cache_t
+#define acpi_cache_t                        struct kmem_cache
 #define acpi_spinlock                   spinlock_t *
 #define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
 #define strtoul                     simple_strtoul
diff --git a/include/asm-arm26/pgalloc.h b/include/asm-arm26/pgalloc.h
index 6437167..7725af3 100644
--- a/include/asm-arm26/pgalloc.h
+++ b/include/asm-arm26/pgalloc.h
@@ -15,7 +15,7 @@
 #include <asm/tlbflush.h>
 #include <linux/slab.h>
 
-extern kmem_cache_t *pte_cache;
+extern struct kmem_cache *pte_cache;
 
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr){
 	return kmem_cache_alloc(pte_cache, GFP_KERNEL);
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h
index 7d398f4..bfee7dd 100644
--- a/include/asm-i386/pgtable.h
+++ b/include/asm-i386/pgtable.h
@@ -34,14 +34,14 @@
 #define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
 extern unsigned long empty_zero_page[1024];
 extern pgd_t swapper_pg_dir[1024];
-extern kmem_cache_t *pgd_cache;
-extern kmem_cache_t *pmd_cache;
+extern struct kmem_cache *pgd_cache;
+extern struct kmem_cache *pmd_cache;
 extern spinlock_t pgd_lock;
 extern struct page *pgd_list;
 
-void pmd_ctor(void *, kmem_cache_t *, unsigned long);
-void pgd_ctor(void *, kmem_cache_t *, unsigned long);
-void pgd_dtor(void *, kmem_cache_t *, unsigned long);
+void pmd_ctor(void *, struct kmem_cache *, unsigned long);
+void pgd_ctor(void *, struct kmem_cache *, unsigned long);
+void pgd_dtor(void *, struct kmem_cache *, unsigned long);
 void pgtable_cache_init(void);
 void paging_init(void);
 
diff --git a/include/asm-powerpc/pgalloc.h b/include/asm-powerpc/pgalloc.h
index ae63db7..b0830db 100644
--- a/include/asm-powerpc/pgalloc.h
+++ b/include/asm-powerpc/pgalloc.h
@@ -11,7 +11,7 @@
 #include <linux/cpumask.h>
 #include <linux/percpu.h>
 
-extern kmem_cache_t *pgtable_cache[];
+extern struct kmem_cache *pgtable_cache[];
 
 #ifdef CONFIG_PPC_64K_PAGES
 #define PTE_CACHE_NUM	0
diff --git a/include/asm-sparc64/pgalloc.h b/include/asm-sparc64/pgalloc.h
index 010f9cd..5891ff7 100644
--- a/include/asm-sparc64/pgalloc.h
+++ b/include/asm-sparc64/pgalloc.h
@@ -13,7 +13,7 @@
 #include <asm/page.h>
 
 /* Page table allocation/freeing. */
-extern kmem_cache_t *pgtable_cache;
+extern struct kmem_cache *pgtable_cache;
 
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
diff --git a/include/linux/delayacct.h b/include/linux/delayacct.h
index 561e2a7..55d1ca5 100644
--- a/include/linux/delayacct.h
+++ b/include/linux/delayacct.h
@@ -30,7 +30,7 @@
 #ifdef CONFIG_TASK_DELAY_ACCT
 
 extern int delayacct_on;	/* Delay accounting turned on/off */
-extern kmem_cache_t *delayacct_cache;
+extern struct kmem_cache *delayacct_cache;
 extern void delayacct_init(void);
 extern void __delayacct_tsk_init(struct task_struct *);
 extern void __delayacct_tsk_exit(struct task_struct *);
diff --git a/include/linux/i2o.h b/include/linux/i2o.h
index 1fb02e1..2514f4e 100644
--- a/include/linux/i2o.h
+++ b/include/linux/i2o.h
@@ -490,7 +490,7 @@
  */
 struct i2o_pool {
 	char *name;
-	kmem_cache_t *slab;
+	struct kmem_cache *slab;
 	mempool_t *mempool;
 };
 
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index fe89444..dacd566 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -949,7 +949,7 @@
 /*
  * handle management
  */
-extern kmem_cache_t *jbd_handle_cache;
+extern struct kmem_cache *jbd_handle_cache;
 
 static inline handle_t *jbd_alloc_handle(gfp_t gfp_flags)
 {
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index ddb1287..98a0ae5 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -958,7 +958,7 @@
 /*
  * handle management
  */
-extern kmem_cache_t *jbd2_handle_cache;
+extern struct kmem_cache *jbd2_handle_cache;
 
 static inline handle_t *jbd_alloc_handle(gfp_t gfp_flags)
 {
diff --git a/include/linux/raid/raid5.h b/include/linux/raid/raid5.h
index f13299a..03636d7 100644
--- a/include/linux/raid/raid5.h
+++ b/include/linux/raid/raid5.h
@@ -235,7 +235,7 @@
 	 */
 	int			active_name;
 	char			cache_name[2][20];
-	kmem_cache_t		*slab_cache; /* for allocating stripes */
+	struct kmem_cache		*slab_cache; /* for allocating stripes */
 
 	int			seq_flush, seq_write;
 	int			quiesce;
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 61c2ab6..36f8503 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -30,7 +30,7 @@
 
 #ifdef CONFIG_MMU
 
-extern kmem_cache_t *anon_vma_cachep;
+extern struct kmem_cache *anon_vma_cachep;
 
 static inline struct anon_vma *anon_vma_alloc(void)
 {
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1d649f3..4ff3940 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -345,7 +345,7 @@
 	return __alloc_skb(size, priority, 1, -1);
 }
 
-extern struct sk_buff *alloc_skb_from_cache(kmem_cache_t *cp,
+extern struct sk_buff *alloc_skb_from_cache(struct kmem_cache *cp,
 					    unsigned int size,
 					    gfp_t priority);
 extern void	       kfree_skbmem(struct sk_buff *skb);
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index f81a5af..ce8a912 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -12,7 +12,7 @@
 #include <net/genetlink.h>
 
 #ifdef CONFIG_TASKSTATS
-extern kmem_cache_t *taskstats_cache;
+extern struct kmem_cache *taskstats_cache;
 extern struct mutex taskstats_exit_mutex;
 
 static inline void taskstats_exit_free(struct taskstats *tidstats)
diff --git a/include/net/dst.h b/include/net/dst.h
index e156e38..62b7e75 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -98,7 +98,7 @@
 	int			entry_size;
 
 	atomic_t		entries;
-	kmem_cache_t 		*kmem_cachep;
+	struct kmem_cache 		*kmem_cachep;
 };
 
 #ifdef __KERNEL__
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index a9eb2ea..34cc76e 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -125,7 +125,7 @@
 	rwlock_t			lhash_lock ____cacheline_aligned;
 	atomic_t			lhash_users;
 	wait_queue_head_t		lhash_wait;
-	kmem_cache_t			*bind_bucket_cachep;
+	struct kmem_cache			*bind_bucket_cachep;
 };
 
 static inline struct inet_ehash_bucket *inet_ehash_bucket(
@@ -136,10 +136,10 @@
 }
 
 extern struct inet_bind_bucket *
-		    inet_bind_bucket_create(kmem_cache_t *cachep,
+		    inet_bind_bucket_create(struct kmem_cache *cachep,
 					    struct inet_bind_hashbucket *head,
 					    const unsigned short snum);
-extern void inet_bind_bucket_destroy(kmem_cache_t *cachep,
+extern void inet_bind_bucket_destroy(struct kmem_cache *cachep,
 				     struct inet_bind_bucket *tb);
 
 static inline int inet_bhashfn(const __u16 lport, const int bhash_size)
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index c8aacbd..2396703 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -160,7 +160,7 @@
 	atomic_t		entries;
 	rwlock_t		lock;
 	unsigned long		last_rand;
-	kmem_cache_t		*kmem_cachep;
+	struct kmem_cache		*kmem_cachep;
 	struct neigh_statistics	*stats;
 	struct neighbour	**hash_buckets;
 	unsigned int		hash_mask;
diff --git a/include/net/netfilter/nf_conntrack_expect.h b/include/net/netfilter/nf_conntrack_expect.h
index cef3136..41bcc9e 100644
--- a/include/net/netfilter/nf_conntrack_expect.h
+++ b/include/net/netfilter/nf_conntrack_expect.h
@@ -7,7 +7,7 @@
 #include <net/netfilter/nf_conntrack.h>
 
 extern struct list_head nf_conntrack_expect_list;
-extern kmem_cache_t *nf_conntrack_expect_cachep;
+extern struct kmem_cache *nf_conntrack_expect_cachep;
 extern struct file_operations exp_file_ops;
 
 struct nf_conntrack_expect
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 426f0fe..7aed02c 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -29,7 +29,7 @@
 struct request_sock_ops {
 	int		family;
 	int		obj_size;
-	kmem_cache_t	*slab;
+	struct kmem_cache	*slab;
 	int		(*rtx_syn_ack)(struct sock *sk,
 				       struct request_sock *req,
 				       struct dst_entry *dst);
diff --git a/include/net/sock.h b/include/net/sock.h
index fe3a33f..730899c 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -571,7 +571,7 @@
 	int			*sysctl_rmem;
 	int			max_header;
 
-	kmem_cache_t		*slab;
+	struct kmem_cache		*slab;
 	unsigned int		obj_size;
 
 	atomic_t		*orphan_count;
diff --git a/include/net/timewait_sock.h b/include/net/timewait_sock.h
index d7a306e..1e1ee32 100644
--- a/include/net/timewait_sock.h
+++ b/include/net/timewait_sock.h
@@ -15,7 +15,7 @@
 #include <net/sock.h>
 
 struct timewait_sock_ops {
-	kmem_cache_t	*twsk_slab;
+	struct kmem_cache	*twsk_slab;
 	unsigned int	twsk_obj_size;
 	int		(*twsk_unique)(struct sock *sk,
 				       struct sock *sktw, void *twp);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 9233ed5..0c775fc 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -557,7 +557,7 @@
 
 static inline struct sas_task *sas_alloc_task(gfp_t flags)
 {
-	extern kmem_cache_t *sas_task_cache;
+	extern struct kmem_cache *sas_task_cache;
 	struct sas_task *task = kmem_cache_alloc(sas_task_cache, flags);
 
 	if (task) {
@@ -575,7 +575,7 @@
 static inline void sas_free_task(struct sas_task *task)
 {
 	if (task) {
-		extern kmem_cache_t *sas_task_cache;
+		extern struct kmem_cache *sas_task_cache;
 		BUG_ON(!list_empty(&task->list));
 		kmem_cache_free(sas_task_cache, task);
 	}