--- linux/arch/i386/kernel/smp.c.orig	Tue Oct 30 10:22:59 2001
+++ linux/arch/i386/kernel/smp.c	Tue Oct 30 11:23:34 2001
@@ -102,7 +102,7 @@
  */
 
 /* The 'big kernel lock' */
-spinlock_t kernel_flag = SPIN_LOCK_UNLOCKED;
+spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
 
 struct tlb_state cpu_tlbstate[NR_CPUS] = {[0 ... NR_CPUS-1] = { &init_mm, 0 }};
 
--- linux/fs/buffer.c.orig	Tue Oct 30 10:23:38 2001
+++ linux/fs/buffer.c	Tue Oct 30 11:23:17 2001
@@ -72,7 +72,7 @@
 static rwlock_t hash_table_lock = RW_LOCK_UNLOCKED;
 
 static struct buffer_head *lru_list[NR_LIST];
-static spinlock_t lru_list_lock = SPIN_LOCK_UNLOCKED;
+static spinlock_t lru_list_lock __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
 static int nr_buffers_type[NR_LIST];
 static unsigned long size_buffers_type[NR_LIST];
 
--- linux/mm/filemap.c.orig	Tue Oct 30 11:23:52 2001
+++ linux/mm/filemap.c	Tue Oct 30 11:24:10 2001
@@ -47,12 +47,12 @@
 unsigned int page_hash_bits;
 struct page **page_hash_table;
 
-spinlock_t pagecache_lock ____cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
+spinlock_t pagecache_lock __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
 /*
  * NOTE: to avoid deadlocking you must never acquire the pagecache_lock with
  *       the pagemap_lru_lock held.
  */
-spinlock_t pagemap_lru_lock ____cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
+spinlock_t pagemap_lru_lock __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
 
 #define CLUSTER_PAGES		(1 << page_cluster)
 #define CLUSTER_OFFSET(x)	(((x) >> page_cluster) << page_cluster)
--- linux/mm/highmem.c.orig	Tue Oct 30 10:24:55 2001
+++ linux/mm/highmem.c	Tue Oct 30 11:24:51 2001
@@ -32,7 +32,7 @@
  */
 static int pkmap_count[LAST_PKMAP];
 static unsigned int last_pkmap_nr;
-static spinlock_t kmap_lock = SPIN_LOCK_UNLOCKED;
+static spinlock_t kmap_lock __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
 
 pte_t * pkmap_page_table;
 
--- linux/include/linux/cache.h.orig	Wed Oct 31 15:08:44 2001
+++ linux/include/linux/cache.h	Wed Oct 31 15:09:19 2001
@@ -34,4 +34,12 @@
 #endif
 #endif /* __cacheline_aligned */
 
+#ifndef __cacheline_aligned_in_smp
+#ifdef CONFIG_SMP
+#define __cacheline_aligned_in_smp __cacheline_aligned
+#else
+#define __cacheline_aligned_in_smp
+#endif /* CONFIG_SMP */
+#endif
+
 #endif /* __LINUX_CACHE_H */