diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index a077adc..e0298d2 100644
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -210,6 +210,8 @@ struct dtl_entry {
 #define DISPATCH_LOG_BYTES	4096	/* bytes per cpu */
 #define N_DISPATCH_LOG		(DISPATCH_LOG_BYTES / sizeof(struct dtl_entry))
 
+extern struct kmem_cache *dtl_cache;
+
 /*
  * When CONFIG_VIRT_CPU_ACCOUNTING = y, the cpu accounting code controls
  * reading from the dispatch trace log.  If other code wants to consume
diff --git a/arch/powerpc/platforms/pseries/dtl.c b/arch/powerpc/platforms/pseries/dtl.c
index c371bc0..e919007 100644
--- a/arch/powerpc/platforms/pseries/dtl.c
+++ b/arch/powerpc/platforms/pseries/dtl.c
@@ -52,10 +52,10 @@ static u8 dtl_event_mask = 0x7;
 
 
 /*
- * Size of per-cpu log buffers. Default is just under 16 pages worth.
+ * Size of per-cpu log buffers. Firmware requires that the buffer does
+ * not cross a 4k boundary.
  */
-static int dtl_buf_entries = (16 * 85);
-
+static int dtl_buf_entries = N_DISPATCH_LOG;
 
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 struct dtl_ring {
@@ -151,7 +151,7 @@ static int dtl_start(struct dtl *dtl)
 
 	/* Register our dtl buffer with the hypervisor. The HV expects the
 	 * buffer size to be passed in the second word of the buffer */
-	((u32 *)dtl->buf)[1] = dtl->buf_entries * sizeof(struct dtl_entry);
+	((u32 *)dtl->buf)[1] = DISPATCH_LOG_BYTES;
 
 	hwcpu = get_hard_smp_processor_id(dtl->cpu);
 	addr = __pa(dtl->buf);
@@ -196,13 +196,15 @@ static int dtl_enable(struct dtl *dtl)
 	long int rc;
 	struct dtl_entry *buf = NULL;
 
+	if (!dtl_cache)
+		return -ENOMEM;
+
 	/* only allow one reader */
 	if (dtl->buf)
 		return -EBUSY;
 
 	n_entries = dtl_buf_entries;
-	buf = kmalloc_node(n_entries * sizeof(struct dtl_entry),
-			GFP_KERNEL, cpu_to_node(dtl->cpu));
+	buf = kmem_cache_alloc_node(dtl_cache, GFP_KERNEL, cpu_to_node(dtl->cpu));
 	if (!buf) {
 		printk(KERN_WARNING "%s: buffer alloc failed for cpu %d\n",
 				__func__, dtl->cpu);
@@ -223,7 +225,7 @@ static int dtl_enable(struct dtl *dtl)
 	spin_unlock(&dtl->lock);
 
 	if (rc)
-		kfree(buf);
+		kmem_cache_free(dtl_cache, buf);
 	return rc;
 }
 
@@ -231,7 +233,7 @@ static void dtl_disable(struct dtl *dtl)
 {
 	spin_lock(&dtl->lock);
 	dtl_stop(dtl);
-	kfree(dtl->buf);
+	kmem_cache_free(dtl_cache, dtl->buf);
 	dtl->buf = NULL;
 	dtl->buf_entries = 0;
 	spin_unlock(&dtl->lock);
@@ -365,7 +367,7 @@ static int dtl_init(void)
 
 	event_mask_file = debugfs_create_x8("dtl_event_mask", 0600,
 				dtl_dir, &dtl_event_mask);
-	buf_entries_file = debugfs_create_u32("dtl_buf_entries", 0600,
+	buf_entries_file = debugfs_create_u32("dtl_buf_entries", 0400,
 				dtl_dir, &dtl_buf_entries);
 
 	if (!event_mask_file || !buf_entries_file) {
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 6c42cfd..b6ecd04 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -276,6 +276,8 @@ static struct notifier_block pci_dn_reconfig_nb = {
 	.notifier_call = pci_dn_reconfig_notifier,
 };
 
+struct kmem_cache *dtl_cache;
+
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 /*
  * Allocate space for the dispatch trace log for all possible cpus
@@ -287,18 +289,12 @@ static int alloc_dispatch_logs(void)
 	int cpu, ret;
 	struct paca_struct *pp;
 	struct dtl_entry *dtl;
-	struct kmem_cache *dtl_cache;
 
 	if (!firmware_has_feature(FW_FEATURE_SPLPAR))
 		return 0;
 
-	dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES,
-						DISPATCH_LOG_BYTES, 0, NULL);
-	if (!dtl_cache) {
-		pr_warn("Failed to create dispatch trace log buffer cache\n");
-		pr_warn("Stolen time statistics will be unreliable\n");
+	if (!dtl_cache)
 		return 0;
-	}
 
 	for_each_possible_cpu(cpu) {
 		pp = &paca[cpu];
@@ -332,10 +328,27 @@ static int alloc_dispatch_logs(void)
 
 	return 0;
 }
-
-early_initcall(alloc_dispatch_logs);
+#else /* !CONFIG_VIRT_CPU_ACCOUNTING */
+static inline int alloc_dispatch_logs(void)
+{
+	return 0;
+}
 #endif /* CONFIG_VIRT_CPU_ACCOUNTING */
 
+static int alloc_dispatch_log_kmem_cache(void)
+{
+	dtl_cache = kmem_cache_create("dtl", DISPATCH_LOG_BYTES,
+						DISPATCH_LOG_BYTES, 0, NULL);
+	if (!dtl_cache) {
+		pr_warn("Failed to create dispatch trace log buffer cache\n");
+		pr_warn("Stolen time statistics will be unreliable\n");
+		return 0;
+	}
+
+	return alloc_dispatch_logs();
+}
+early_initcall(alloc_dispatch_log_kmem_cache);
+
 static void __init pSeries_setup_arch(void)
 {
 	/* Discover PIC type and setup ppc_md accordingly */
