--- zzzz-none-000/linux-2.4.17/include/asm-i386/smplock.h	2001-11-22 19:46:20.000000000 +0000
+++ sangam-fb-322/linux-2.4.17/include/asm-i386/smplock.h	2004-11-24 13:21:55.000000000 +0000
@@ -9,8 +9,26 @@
 #include <asm/current.h>
 
 extern spinlock_t kernel_flag;
+#ifdef CONFIG_PREEMPT_TIMES
+#define lock_bkl() do { \
+	current->preempt_count++;  \
+	preempt_lock_start(3); \
+	_raw_spin_lock(&kernel_flag); \
+} while (0)
+#else
+#define lock_bkl() spin_lock(&kernel_flag)
+#endif
+#define unlock_bkl() spin_unlock(&kernel_flag)
 
+#ifdef CONFIG_SMP
 #define kernel_locked()		spin_is_locked(&kernel_flag)
+#else
+#ifdef CONFIG_PREEMPT
+#define kernel_locked()		preempt_is_disabled()
+#else
+#define kernel_locked()		1
+#endif
+#endif
 
 /*
  * Release global kernel lock and global interrupt lock
@@ -32,7 +50,18 @@
 		spin_lock(&kernel_flag); \
 } while (0)
 
-
+#ifdef CONFIG_PREEMPT_TIMES
+#define lock_kernel() do { \
+	if (current->lock_depth == -1) \
+		lock_bkl(); \
+	++current->lock_depth; \
+} while (0)
+ 
+#define unlock_kernel() do { \
+	if (--current->lock_depth < 0) \
+		unlock_bkl(); \
+} while (0)
+#else
 /*
  * Getting the big kernel lock.
  *
@@ -42,6 +71,11 @@
  */
 static __inline__ void lock_kernel(void)
 {
+#ifdef CONFIG_PREEMPT
+	if (current->lock_depth == -1)
+		spin_lock(&kernel_flag);
+	++current->lock_depth;
+#else
 #if 1
 	if (!++current->lock_depth)
 		spin_lock(&kernel_flag);
@@ -54,6 +88,7 @@
 		:"=m" (__dummy_lock(&kernel_flag)),
 		 "=m" (current->lock_depth));
 #endif
+#endif
 }
 
 static __inline__ void unlock_kernel(void)
@@ -73,3 +108,4 @@
 		 "=m" (current->lock_depth));
 #endif
 }
+#endif /* CONFIG_PREEMPT_TIMES */